Technical Manual - Imaging Solutions...

Technical Manual

ISG LightWise™ AllegroUSB3 Vision™ Cameras

Version 1.3.1Last Revision 3.31.15

ISG Allegro LightWise USB 3.0 Technical Manual Version 1.3.1

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Table of ContentsFCC Compliance .................................................................................................................................................... 5Hardware Warranty................................................................................................................................................. 5WEEE ..................................................................................................................................................................... 5Trademarks ............................................................................................................................................................. 5About This Guide.................................................................................................................................................... 6

Contents .............................................................................................................................................................. 6Assumptions........................................................................................................................................................ 6Support................................................................................................................................................................ 6

LightWise Allegro USB 3.0 Specifications ............................................................................................................ 7Specifications ...................................................................................................................................................... 7Handling Precautions and Camera Care ............................................................................................................. 8

Case Temperature and Heat Dissipation......................................................................................................... 9Before You Install............................................................................................................................................. 10

Will your system configuration support the camera? ................................................................................... 10Recommended USB3 Interface Cards: ......................................................................................................... 10Do you have all the parts you need? ............................................................................................................. 10Do you have the required software? ............................................................................................................. 10

Installing your Software.................................................................................................................................... 11Overview....................................................................................................................................................... 11SG LightWise Allegro USB3 GUI Software - 64-Bit Installation ............................................................... 12GenICam™ - 64-Bit Software (8MB) Installation ....................................................................................... 15Lightwise_Allegro_U3V_Driver Installation ............................................................................................... 18

Installing Your Camera..................................................................................................................................... 18Using the ISG GUI................................................................................................................................................ 19

Custom Applications Built Using the ISG API ............................................................................................ 19Using GenICam Applications ............................................................................................................................... 21LightWise Allegro USB 3.0 Physical Description ............................................................................................... 22LightWise Allegro USB 3.0 Dimensions.............................................................................................................. 23Mounting with the Case or Optional Tripod Mount ............................................................................................. 24Dust Protection...................................................................................................................................................... 24Infrared Cutoff Filters ........................................................................................................................................... 25Camera Interface and Connectors ......................................................................................................................... 26

USB 3.0 Connector ........................................................................................................................................... 26


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Interface Cables .................................................................................................................................................... 27Interface Card........................................................................................................................................................ 27Powering the Camera ............................................................................................................................................ 28User Sets ............................................................................................................................................................... 28

GenICam User Set Control ............................................................................................................................... 29Camera Firmware.................................................................................................................................................. 29

Determining Firmware Version ........................................................................................................................ 29Upgrading Camera Firmware ........................................................................................................................... 29

Trigger/Strobe Control Input/Output Connector .................................................................................................. 30Camera Trigger Details......................................................................................................................................... 30Camera Strobe Details .......................................................................................................................................... 31Programmable Strobe Output ............................................................................................................................... 32Asynchronous Triggering ..................................................................................................................................... 33

GenICam Acquisition Control .......................................................................................................................... 34Standard External Trigger................................................................................................................................. 35Bulb Shutter Trigger ......................................................................................................................................... 36Burst Mode Trigger (Edge Detect) ................................................................................................................... 37Burst Mode Trigger (Level Detect) .................................................................................................................. 38

External Trigger Timing ....................................................................................................................................... 39Asynchronous Software Triggering...................................................................................................................... 39Pixel Formats ........................................................................................................................................................ 40

Mono................................................................................................................................................................. 40RGB .................................................................................................................................................................. 40YCrCb/YUV ..................................................................................................................................................... 40Image Format Control....................................................................................................................................... 41

Shutter Types ........................................................................................................................................................ 42Global Shutter ................................................................................................................................................... 42Rolling Shutter .................................................................................................................................................. 43Rolling Shutter with Global Reset .................................................................................................................... 44

Device Control ...................................................................................................................................................... 45Image Format Control........................................................................................................................................... 47Acquisition Control............................................................................................................................................... 48Digital IO Control ................................................................................................................................................. 49Analog Control...................................................................................................................................................... 50


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Transport Layer Control ....................................................................................................................................... 50User Set Control.................................................................................................................................................... 51


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1. Background InformationFCC Compliance

This device complies with Part 15 of the FCC rules. Its operation is subject to the following two conditions:1. This device may not cause harmful interference2. This device must accept any interference received, including interference that may cause undesirable

operation.

Hardware WarrantyThe LightWise Allegro USB 3.0 Digital Camera shall be covered under a hardware warranty for two (2) years. Toobtain detailed information on how to repair or replace your camera please see the terms and conditions on ourwebsite. http://www.isgcameras.com/pdf/ISG_Standard_Tems_and_Conditions.pdf

WEEEThis product may not be treated as household waste. When the product is ready to be disposed of please ensure youfollow the appropriate waste handling method as the improper disposal of this product may cause potential hazards tothe environment and human health. For more detailed information about disposing of, or recycling of this productplease contact Imaging Solutions Group.

TrademarksImaging Solutions Group, LightWise


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2. PrefaceAbout This GuideThis manual provides a detailed introduction and specification for the LightWise Allegro USB 3.0 Camerasystem, including care, installation, use, interface guides, physical descriptions, and functional specification.This camera system is one that is complex and dynamic, therefore if any errors or omissions are found duringuse please contact us. See section on contact information.

This symbol highlights important information.

This symbol highlights important instructions, ones that you must follow to avoidmalfunction

ContentsThis guide contains information and instructions and guidelines for the LightWise Allegro USB 3.0 Camerasystem. Information can be found in the following sections

AssumptionsNone

Support

Contact Type Contact InformationEmail [email protected]; [email protected] Base www.isgcameras.comDownloads

http://www.isgcameras.com/support-allegro-usb3.php

Main Office Imaging Solutions Group of NY, Inc1387 Fairport Road, Suite 890Fairport, NY 14450


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LightWise Allegro USB 3.0 SpecificationsBuilding on the success of the original LightWise 1394 camera series, the LightWise Allegro camera offers amany new features, including enhanced opto-isolated GPIO, an on-camera frame buffer, non-volatile flashmemory for data storage, new trigger modes and improved imaging performance.

Specifications

Model Version MP Imaging SensorLW-AL-CMV-2000-USB3-C Color 2 MP CMOSIS CMV-2000, 2/3” CMOS

Global Shutter, 5.5u pixelup to 340 fps using internal buffer

LW-AL-CMV-2000-USB3-M Mono 2 MP CMOSIS CMV-2000, 2/3” CMOSGlobal Shutter, 5.5u pixelup to 340 fps using internal buffer

LW-AL-CMV-4000-USB3-C Color 4 MP CMOSIS CMV-4000, 1” CMOSGlobal Shutter, 5.5u pixelup to 150 fps using internal buffer

LW-AL-CMV-4000-USB3-M Mono 4 MP CMOSIS CMV-4000, 1” CMOSGlobal Shutter, 5.5u pixelup to 150 fps using internal buffer

LW-AL-CMV-12000-USB3-C Color 12 MP CMOSIS CMV-12000, 4/3” CMOSGlobal Shutter, 5.5u pixelup to 80 fps using internal buffer

LW-AL-CMV-12000-USB3-M Mono 12 MP CMOSIS CMV-12000, 4/3” CMOSGlobal Shutter, 5.5u pixelup to 80 fps using internal buffer

LW-AL-IMX174-USB3-C Color 2.3 MP SONY IMX174, 1/1.2”Global Shutter, 5.86u pixelup to 120 fps

LW-AL-IMX174-USB3-M Mono 2.3 MP SONY IMX174, 1/1.2”Global Shutter, 5.86u pixelup to 120 fps

LW-AL-IMX249-USB3-C Color 2.3 MP SONY IMX249, 1/1.2”Global Shutter, 5.86u pixelup to 60 fps

LW-AL-IMX249-USB3-M Mono 2.3 MP SONY IMX249, 1/1.2”Global Shutter, 5.86u pixelup to 60 fps


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Imaging Performance Sensor Image DataA/D Converter 10 and or 12 bit in sensorVideo Data Output 8,10 and 12 bit firmware availableImage Data Formats Mono:8 or 10 bit packed, 12 bit firmware available

Color: Bayer 8 or 10 bit packed, RGB, YCC 422Image Processing Pipeline(Color Models)

Bayer Interpolation, Gamma, White Balance, Color Space Conversion and Correction

Partial Image Modes Binning and Region of Interest (ROI) ModesShutter Global Shutter with Programmable IntegrationGain Programmable Digital GainDigital Interface USB 3.0 interface with screw locks for camera control, data and powerTransfer Rates 5 Gbit/sGPIO 12-pin Hirose HR10A GPIO, opto isolated trigger, 2 opto isolated strobesExternal Trigger Modes Single Frame, Burst Mode, Bulb ModeSynchronization Via external trigger or software triggerImage Buffer 256 MB BufferFlash Memory 8 MB nonvolatile flash memoryDimensionsMassPower Consumption 5V via USB3.0 interface, maximum <4.5WMachine Vision Standard IIDC v 1.32, USB3 Vision v1Camera Control Via ISG SDK, CSRs, or third party softwareCamera Updates In-field firmware updatesLens Mount C-mountTemperature Operating: 0o to 45o C; Storage -30o to 60o CHumidity Operating: 20 to 80% (no condensation); Storage 20 to 90% (no condensation)Compliance CE, FCC, RoHSOperating System Windows 7, 8, 8.1Warranty Two Years

Handling Precautions and Camera Care

Opening the camera housing will cause damage and will void the hardware warranty detailed in the beginningof this document. Since the LightWise Allegro Camera is a precisely manufactured device it must be handledwith care. Some tips for device care are below:

1. Electrostatic charging should be avoided2. Avoid touching the lens when handling the camera, as fingerprints will affect the quality of the image

produced by the device.3. When cleaning the lens do not use excessive force and please use a standard camera lens cleaning kit or

clean dry cotton cloth.4. Avoid exposure to bright sunlight, dusty environments, rain etc. as this may cause problems with the

electronic and optics of the system.5. Mishandling of the device such as excessive shaking, dropping and force should be avoided.


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Case Temperature and Heat DissipationFor the camera to function correctly, it is required to provide sufficient heat dissipation for the internaloperating environment. Since the camera electronics are neatly packed into a small space it can become verywarm to the touch when running in some modes; this is expected behavior and will not damage the electronics.

The use of a cooling fan to set up positive air flow around the camera in order reduce is suggested. Please takeinto consideration the following precautions:

1. Mount the camera on a heat sink that is composed of a heat conductive material like aluminum, such asa camera mounting bracket.

2. Ensure the flow of heat from the camera case to the bracket is not blocked by a non-conductive materiallike plastic.

3. Provide enough space around the camera to facilitate the free flow of air.


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3. LightWise Allegro USB 3.0 InstallationBefore You InstallWill your system configuration support the camera?

Operating System CPU RAM Video Ports SoftwareWindows 7, 8,8.1(LinuxSupported viaUSB3 visionStandard)

Intel Corei3 3.1

GHz orequivalent

4GB 128 MBRAM

PCIe 2.0 compatiblehost controller withUSB 3.0 connector

Microsoft Visual Studio2010

(to compile and runexample code)

Recommended USB3 Interface Cards:The USB3 desktop motherboards supporting the Intel Z77 or Z78 chipset or newer will support high bandwidthUSB3. USB3 cards may also be added to provide the ports. The two cards below have been successfully testedwith ISG cameras:

1. 2-port card, both ports share a total 5 Gbps bandwidth:http://isgcameras.com/startech_2-port_usb3_hba_pexusb3s24.php

2. 4-port card, with each port having its own 5 Gbps bandwidth for total of 20 Gbps.http://isgcameras.com/startech_4-port_usb3_hba_pexusb3s44v.php

Do you have all the parts you need?

To install your camera you will need the following components:

1. USB 3.0 cable (see Interface Cables)2. 12-pin Trigger/Strobe cable3. C-mount Lens4. Tripod adapter (optional) (see Mounting with the Case or Optional Tripod Mount)5. Interface card

ISG sells a number of the additional parts required for installation. To purchase, please visit the ISG Web Site.www.isgcameras.com

Do you have the required software?There are many helpful resources available to you on the ISG downloads page including:


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1. Software; including drivers that are needed for installation2. Firmware; updates and release notes.3. Dimensional drawings and CAD Models4. Documentation

Installing your SoftwareOverviewIn order to operate the ISG USB3 camera, the following software installation programs should be loaded fromthe ISG website (http://www.isgcameras.com/support-allegro-usb3.php) The first is the ISG UI software,labelled as “ISG LightWise Allegro USB3 GUI Software - 64-Bit”. This will install a folder containing theISG GUI application, as well as a driver installation subfolder “Lightwise_Allegro_U3V_Driver”. In addition,the GenAPI reference software library is required. This can be loaded from the link called “GenICam™ - 64-Bit Software (8MB)”. These two installations must both be performed, and the driver installer run, in order tocomplete all of the required software for the camera and can be done prior to installing the camera.

After installing the ISG LightWise Allegro USB3 GUI Software, open a browser window to the install folder.By default this will be “C:\ISG\Usb3GUI_Install\. There resides subfolder Lightwise_Allegro_U3V_Driver.In that folder is the driver installation application LightwiseAllegro_DriverInstall.exe. Running thisapplication will start a device driver installation wizard. Agree to all of the pop up menus that arise based onthis driver update. The driver installation can take several minutes in some cases, but eventually the processwill complete with a dialog that reports success. When the ISG Allegro camera is connected, the devicemanager should show the camera’s association to the WinUSB driver, although this can also take some timewhen the camera is connected for the first time.

Once driver installation is successfully completed and the GenICam installation is done, the ISG GUI can beused to connect to, and demonstrate functionality of the USB3 camera.


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ISG LightWise Allegro USB3 GUI Software - 64-Bit Installation

Select Next

Select Next


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Select Next to launch installation

Please wait while the installtion completes


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Select Close to complete the installation


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GenICam™ - 64-Bit Software (8MB) Installation

Select Next

Select I Agree


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Select Next

Select Next


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Select Install and the installation will take a little while to complete.

Select Finish and the GenICam installation is complete!


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Lightwise_Allegro_U3V_Driver Installation

Select next

Select finish

Installing Your Camera


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1. Install the Tripod Mounting Bracket (optional)2. Attach a Lens

a. Unscrew the dust cap from the C-mount lens holder to install a lens3. Connect the interface card and cable to the camera

a. Plug the interface cable into the host controller and the camera. The cable jack screws should beused for a secure connection

4. Plug in the GPIO Connector (optional)a. GPIO can be used for trigger and strobe

5. Confirm successful installationa. Check the device manager to confirm the installation was successfulb. Go to the start menu and select run and enter devmgmt.mscc. Verify the camera is listed as LightWise Allegro U3V (this will normally be found under the

“ibusb (WinUSB) devices” header)

4. Tools to Control the LightWise Allegro USB 3The LightWise Allegro USB 3.0's features can be accessed using various controls, including:

1. ISG API examples and the ISG GUI program

2. GenICam Applications

3. Third-party Software Applications

Examples of the controls are provided throughout this document. Additional information can be found in theappendices.

Using the ISG GUIThe user can monitor or control features of the camera through ISG API examples, or through the ISG GUI.The ISG GUI is a streaming image viewer included with the ISG camera that can be used to test many of thecapabilities of your compatible ISG camera. It allows you to view a live video stream from the camera, saveindividual images, adjust the various video formats, frame rates, properties and settings of the camera, andaccess camera registers directly.

Custom Applications Built Using the ISG APIThe ISG Application Programming Interface that allows customers to create custom applications to control ISGImaging Products. Included in downloads that are available on the ISG web site are a number of source codeexamples to help programmers get started.

Available downloads include:1. Compiled and installable GUI.


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2. Source code examples from the ISG GUI indicating how to access camera parameters.(IsgU3VGuiSample.zip)

3. The ISG dll Header file which describes the API, and an API description document(ISG_USB3_Interface_Guide_ISG_U3V_API.pdf).

4. Instructions on how to locate the Header file can be found in:ISG_USB3_Interface_Guide_ISG_U3V_API.pdf


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Using GenICam ApplicationsUSB3 Vision is a communication interface for vision applications based on the USB 3.0 technology. Allcameras supporting USB3 Vision interact the same way with software also supporting USB3 Vision.

The standard defines required elements for camera identification, control, and output. It uses GenICam, aprogramming interface for camera attribute control. GenICam allows camera vendors to define features andattributes in an XML file stored inside the camera. The file is parsed by the host application when the camera isinitially discovered. One of the key benefits of GenICam is the ability for camera vendors to introduce newcamera-specific features without needing to update the host application.

Each camera attribute, such as exposure time, is controlled by a specific GenICam feature. The camera includesan XML device description file for interfacing with third-party GenICam-compliant APIs. A full listing offeatures that are included in the XML file is provided in GenICam Features. Throughout this document,GenICam features are referenced with their applicable operation.

For more information on the USB3 Vision standard, visit visiononline.org.

For more information on GenICam, visit http://www.isgcameras.com/support-allegro-usb3.php


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5. LightWise Allegro USB 3.0 Physical InterfaceLightWise Allegro USB 3.0 Physical Description

1. Lens holderC Mount Lens ready. (CS Mount available by special order.

2. Glass/IR filter systemDust protective glass on monochrome cameras, IR Cut filter on color models. Removable andmounted behind Lens Holder

3. M3x.5 THD x 5 DP mounting holesEight locations on camera case for multiple mounting options.

4. General purpose I/O connectorThe 12 – pin Trigger/Strobe connector. See Trigger and Strobe Control

5. Status LEDThis light indicates the current state of the camera operation. See Status Indicator LED

6. USB3 connectorSee USB 3.0 Connector


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LightWise Allegro USB 3.0 DimensionsLW-AL-CMV-4000/2000 shown below

Drawings and 3D models for all model numbers available on the ISG Web Site

FRONT PANEL SIDES BOTTOM

REAR PANEL


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Mounting with the Case or Optional Tripod MountThe case provides the following mounting holes:

1. Eight (8) M3 x .5 mounting holes on the top bottom and sides of the case.2. The two M3 x .5 mounting holes on the front bottom of the case can be used to attach the optional tripod

mount.

The tripod mount is designed to accept standard tripods with a standard 1/4" - 20 threading.

Tripod Mount:

Dust ProtectionDesigned to prevent dust from falling directly onto the sensor’s protective glass surface the LightWise Allegrocomes with protective camera housing. The shielding is accomplished by placing a piece of clear glass(monochrome camera models) or an IR cut off filter (color models) which sits above the surface of the sensorsglass with a removable plastic retainer that keeps the glass/filter in place. The possibility of damage to thesensor when cleaning or of interference from dusty is greatly reduced by the increased distance between theimaging surface and the location of potential dust particles. Additional measures of protection:

1. Cameras are sealed when they are shipped. To avoid contamination, seals should not be broken untilcameras are ready for assembly at customer's site.

2. Use caution when removing the protective glass or filter. Damage to any component of the optical pathvoids the Hardware Warranty.

3. Removing the protective glass or filter alters the optical path of the camera, and may result in problemsobtaining proper focus with your lens.


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Infrared Cutoff FiltersISG color camera models are shipped with an infrared (IR) cutoff filter. This filter can reduce sensitivity in thenear infrared spectrum and help prevent smearing. The properties of this filter are illustrated in the transmissioncurve below. In monochrome models, the IR filter is replaced with a transparent piece of glass.

0

10

20

30

40

50

60

70

80

90

100

0 200 400 600 800 1000 1200

SP645 IR Cut Filter Transmission Curve - (Color Models)


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Camera Interface and ConnectorsUSB 3.0 Connector

The camera is equipped with a USB 3.0 Micro-B connector that is used for data transmission, camera controland power. For more detailed information, consult the USB 3.0 specification available fromhttp://www.usb.org/developers/docs/.

Figure 4.5: USB 3.0 Micro B Connector

Pin Signal Name Description

1 VBUS Power2 D-

USB 2.0 differential pair3 D+4 ID OTG identification5 GND Ground for power return6 MicB_SSTX-

SuperSpeed transmitter differentialpair7 MicB_SSTX+

8 GND_DRAIN Ground for SuperSpeed signal return9 MicB_SSRX-

SuperSpeed receiver differential pair10 MicB_SSRX+TABLE 4.1: USB 3.0 MICRO-B CONNECTOR PIN ASSIGNMENTS

The USB 3.0 Micro-B receptacle accepts a USB 2.0 Micro-B plug and, therefore, the camera is backwardcompatible with the USB 2.0 interface.

When the camera is connected to a USB 2.0 interface, it runs at USB 2.0 speed,and maximum frame rates are adjusted accordingly based on current imagingparameters.


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Interface CablesBecause there is not a standard maximum cable length specified in the USB 3.0 standard you may need topurchase a recommended cable. To do so please visit the ISG web site. www.isgcameras.com.

Interface CardIn order to achieve optimum benefits of the USB 3.0 the camera must connect to a USB PCIe 2.0 card.

The camera must connect to an interface card which is often referred to as a host adapter, a bus controller or anetwork interface card (NIC)


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6. General LightWise Allegro USB 3.0 Operation

Powering the CameraThe power consumption specification is: 5 V via USB 3.0 interface, maximum 900mA.

The USB 3.0 Micro-B connector provides a power connection between the camera and the host computer.The ideal input voltage is nominal 5 V DC. Full power, 900mA USB3 host ports must be used.

Caution must be used with USB2 ports or hubs which do not provide the specified 900m mA. USB2 onlyprovides 500 mA per port. For applications using USB2 ports, external 6V power may need to be provided viathe trigger and strobe cable, or by using a special USB3 Y-Cable cable which allows summing of power frommultiple USB2 ports.

User SetsThe camera can save and restore settings and imaging parameters via on-board user configuration sets, alsoknown as memory channels. This is useful for saving default power-up settings, such as gain, shutter, videoformat and frame rate, and others that are different from the factory defaults.

User Set 0 stores the factory default settings that can always be restored. Two additional user sets are providedfor custom default settings. The camera initializes itself at power-up, or when explicitly reinitialized, using thecontents of the last saved user set. Attempting to save user settings to the (read-only) factory default user setcauses the camera to switch back to using the factory defaults during initialization.

The following camera settings are saved in user sets.

1. Acquisition Frame Rate and Current Frame Rate2. Image Data Format, Position, and Size3. Current Video Mode and Current Video Format4. Frame information5. Trigger Mode and Trigger Delay6. Imaging Parameters7. GenICam User Set Control


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GenICam User Set Control

Camera FirmwareFirmware is programming that is inserted into the programmable memory (programmable ROM) of ISGcameras. Firmware is created and tested like software. When ready, it can be distributed like other software andinstalled in the programmable memory by the user.

The latest firmware versions often include significant bug fixes and feature enhancements. To determine thechanges made in a specific firmware version, consult the Release Notes.

Firmware is identified by a version number, a build date, and a description.

Determining Firmware VersionTo determine the firmware version number of your camera:

1. In the ISG, open the "About" Dialog.2. Query the GenICam feature DeviceFirmwareVersion.

Upgrading Camera FirmwareCamera firmware can be upgraded or downgraded with either an earlier or later version by using tools locatedon the ISG website. www.isgcameras.com

Name Display Name Description Value

UserSetSelector User Set Selector Select the feature user set to load, save, or configureDefault = 0User Set 1 = 1User Set 2 = 2

UserSetLoad Load SelectedUser Set

Loads the User Set specified by UserSetSelector and makes itactive Write Only

UserSetSaveSave SelectedUser Set

Saves the user set specified by the User Set Selector to thenon-volatile memory of the device Write Only

UserSetDefault Default User Set Select the feature user set to load and make active by defaultwhen the device is reset

DefaultUser Set 1User Set 2


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7. Trigger/Strobe ControlTrigger/Strobe Control Input/Output ConnectorConnector Information:On Camera: Hirose R10A-10R-12SB(71) - J1Mating Plug (For Cables): Hirose HR10A-10P-12P(73)

Pin AssignmentJ1.1 Reserved do not attachJ1.2 Reserved do not attachJ1.3 Reserved do not attachJ1.4 Reserved do not attachJ1.5 STROBE 2 (OPTO ISOLATED)J1.6 USER GROUND – FOR TRIGGER (OPTO ISOLATED)J1.7 TRIGGER (OPTO ISOLATED)J1.8 USER VCC 5-24V-FOR STROBES (OPTO ISOLATED)J1.9 Reserved do not attachJ1.10 STROBE 1 (OPTO ISOLATED)J1.11 Reserved do not attachJ1.12 Optional Shield / Chassis

Camera Trigger DetailsThe external interface consists of one isolated programmable Trigger Input and two isolated programmableStrobe outputs.

1. Trigger input: The camera receives one optically isolated trigger input. The interface consists of 2wires

a. Trigger In (signal)b. User-Ground (signal return). The trigger amplitude should be between 5V to24V. The interface

supports the Trigger frequency of up to 1MHZ at 50% duty cycle. The camera interface circuitlimits the input current to around 5ma. The design provides reverse polarity protection.

2. Trigger modes: are programmable fora. Active-highb. Active-lowc. Falling-edged. Rising-edge.


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The drawing below shows the camera’s Trigger Interface circuit.

`

Camera Strobe DetailsStrobe1-2 outputs: The camera provides two optically isolated Strobe outputs (npn transistor). The outputmodes (level high or level low and pulse duration) are programmable.

The following diagram shows the interface circuit for each of the Strobe outputs.

Note: the amount of current flow, IC, is the function of User-resistor- Load and User-VCC. It is recommended the IC be kept at 2mato 24ma range when Saturation voltage, VCE, is at 0.5V max.


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The table below shows some suggested resistor-load value based on various User-VCC at IC value of 10mA

Programmable Strobe OutputThe camera has two independent programmable strobe outputs. The strobe control input can be driven by thesensor (sensor integration active) or the hardware trigger input. This allows for very flexible strobe control. Bydefault, the strobe_1 output is a positive going pulse during sensor integration and the strobe_2 output is aninverted version of strobe_1. By using strobe input select, strobe duration and delay along with programmableinput and output polarity, most any strobe application can be implemented.


StrobeSelector Strobe Selector Selects strobe signal to be modified STROBE 1STROBE 2

StrobeSource Strobe Source Selects strobe block input signal Write Only

StrobeDelay Strobe Delay Delay from active edge of input to strobe blockto assertion of strobe output

0 – 10,000 uS

StrobeDuration Strobe Duration Strobe active time 0 – 10,000 uS

InvertStrobeOutput InvertStrobeOutput Invert signal into strobe block (invert = activelow)

True

InvertStrobeInput InvertStrobeInput Invert signal out of strobe block (invert = activelow)

True

Load Resistor IC mA VC Comment

2.4K 10 24V VCE = 0.3

1.2K 10 12V VCE = 0.3

500-ohm 10 5V VCE = 0.3


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8. Image AcquisitionAsynchronous TriggeringCamera triggering can be sourced from an external signal (Hardware trigger input) or by software trigger.

Auto/One Push shutter and auto/one push gain control is not supported in asynchronoustrigger modes

To access trigger modes:

1. GenICam—Acquisition Control2. ISG API—AsyncTriggerEx3. CSRs—TRIGGER_MODE: 830h


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GenICam Acquisition Control


AcquisitionMode Acquisition Mode Sets the acquisition mode of the device. It definesmainly the number of frames to capture during anacquisition and the way the acquisition stops

Single Frame = 0Multi Frame = 1Continuous = 2

AcquisitionStart Acquisition Start Starts the Acquisition of the device. The number offrames captured is specified by AcquisitionMode

AcquisitionStop Acquisition Stop Stops the Acquisition of the device at the end of thecurrent frame. It is mainly used whenAcquisitionMode is Continuous but can be used inany acquisition mode

TriggerSelector Trigger Selector Selects the type of trigger to configure Acquisition Start = 3

TriggerSource Trigger Source Specifies the internal signal or physical input Lineto use as the trigger

Software = 0xfcLine0 = 0

TriggerMode Trigger Mode Trigger source states Off = 0On = 1

TriggerActivation Trigger Activation Mode Specifies the activation mode of the trigger Rising Edge = 0Falling Edge = 1

TriggerDelay Trigger Delay Specifies the delay in microseconds (us) to applyafter the trigger reception before activating it.

Min = 0Max = 67108863.0

TriggerSoftware Generate Software Trigger Generates an internal trigger. TriggerSource mustbe set to Software.

ExposureTime Exposure Time Controls the Absolute exposure time inmicroseconds (µs)

Min = 100.0Max = 10000000.0

AcquisitionFrameCount Acquisition Frame Count Number of frames to acquire in MultiFrameAcquisition mode

Min = 1Max = 32

AcquisitionMaxFrameCount Max Acquisition FrameCount

Max number of frames that can be acquired inMultiFrame acquisition mode. This value is afunction of image size and pixel format

32


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Standard External TriggerIn this mode, camera frames are generated using an external signal. When the input signals selected edge isdetected, the image sensor begins integration followed by image readout.

Figure 7.1: Standard External Trigger Mode

GenICam—Acquisition Control

Acquisition Mode Single Frame

Trigger Selector Acquisition Start

Trigger Mode On

Trigger Source Line 0

Trigger Activation Rising or Falling edge

Trigger Delay Adjustable

Exposure Time Integration Time

Exposure Auto Off


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Bulb Shutter TriggerAlso known as Bulb Shutter mode, the camera starts integration with the leading edge of the input trigger.Integration time terminates on the trailing edge of the input trigger.

Figure 7.2: Bulb Shutter Trigger


Acquisition Mode Trigger width

Trigger Selector Acquisition Start

Trigger Mode On

Trigger Source Line 0

Trigger Activation Rising or Falling edge

Trigger Delay 0

Exposure Mode Trigger Width


Exposure Auto Off


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Burst Mode Trigger (Edge Detect)This trigger mode allows x number of frames to be generated with one trigger input (hardware or software).The frames are generated when the selected trigger edge is detected. The trigger interval value will determineframe rate. If the imager frame time is greater than the programmed interval, frames will be generated at themaxim sensor frame rate. NOTE: Depending on the sensor, the maximum frame rate in triggered mode may notbe the same as in continuous mode.

Figure 7.3: Trigger Mode 15 (“Multi-Shot Trigger Mode”)


Acquisition Mode MultiFrameAcquisition Frame Count Number of images to be acquiredTrigger Selector Exposure StartTrigger Mode OnTrigger Source Line 0Trigger Activation Rising or Falling edgeTrigger Delay AdjustableExposure Mode Timed


Exposure Auto Off


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Burst Mode Trigger (Level Detect)In this trigger mode sensor triggers will be generated as long as the input trigger is active. NOTE: Dependingon the sensor, the maximum frame rate in triggered mode may not be the same as in continuous mode.

Figure 7.3: Trigger Mode 15 (“Multi-Shot Trigger Mode”)

Exposure duration is shutter register value

SensorExposure

SensorReadout

Frames are generated while trigger is active


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External Trigger TimingThe time from the external trigger firing to the start of shutter is shown below:

1. Trigger Pulse2. Propagation Delay3. Exposure Time4. Sensor Readout5. Data Transfer

Figure 7.4: External trigger timing characteristics

Asynchronous Software TriggeringShutter integration can be initiated by a software trigger by setting the Trigger Source to Software in theGenICam features.

The time from a software trigger initiation to the start of shutter is shown below:

1. Software Trigger2. Trigger Latency3. Exposure Time4. Sensor Readout5. Data Transfer

Figure 7.6: Software trigger timing

The time from when the software trigger is written on the camera to when the start of integration occurs canonly be approximated. We then add the trigger latency (time from the trigger pulse to the start of integration) tothis.

This timing is solely from the camera perspective. It is virtually impossible to predict timingfrom the user perspective due to latencies in the processing of commands on the host PC


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9. LightWise Allegro USB 3.0 Attributes

Pixel FormatsThe pixel formats describe the encoding scheme of the pixels in the camera output images. Pixel formatsdescribe each pixel in terms of color encoding, bit depth and formatting within the data stream.

Pixel formats conform to the GenICam Pixel Format Naming Convention (PFNC) v2.0. The fullPFNC can be found on the EMVA.org website and contains more details than provided below.Not all features are available on all cameras.

The camera sensor Analog to Digital Converter (ADC) produces pixels at a particular bit depth, typically 10bits. If the selected pixel format has fewer bits than the ADC output, the least significant bits are dropped. If theselected pixel format has more bits per pixel than the ADC, the least significant bits are padded with zeros.

MonoMono formats include Mono8 (8 bit per pixel) and Mono10p (10 bits per pixel). Mono cameras only outputthese formats. Selecting a Mono format bypasses image processing features and thus offers the highest framerates available.

RGBColor sensors using a Bayer color filter array support Bayer pixel formats. The camera supports BayerLM8 andBayerLM10p. Where L and M are one of R, G, or B and describe the ordering of pixels within the Bayer pattern(see the PFNC document). These formats require the host software to reconstruct a full color image. The colorprocessing in the camera is bypassed when a Bayer format is selected offering the highest available frame rate.

YCrCb/YUVThis format consists of a brightness (luma) component, Y, and color (chroma) components Cb and Cr (alsoreferred to as U and V). So called YCC444 format is 24 bits per pixel. Subsampling the chroma channels allowsYCbCr data to use 16 bits per pixel for a faster transfer rate without significant visual difference. This isreferred to as YCC422.


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Image Format ControlName Display Name Description ValueWidth Width Width of the image provided

by the device (in pixels)Min = 8Max = Sensor Dependent

Height Height Height of the image providedby the device (in pixels

Min = 4Max = Sensor Dependent

Offset X X Offset Horizontal offset from theorigin to the region of interest(in pixels)

Min = 0Max =

Offset Y Y Offset Vertical offset from the originto the region of interest (inpixels)

Min = 0Max =

PixelFormat Pixel Format Format of the pixels providedby the device. It represents allthe information provided byPixelCoding, PixelSize,PixelColorFilter combined in asingle feature

Monochrome FormatsMono8, Mono10pColor FormatsBayer8, Bayer10p, RGB8,YCC444, YCC422

RegionSelector Region Selector Selects region of interest(ROI) to control. Region0represents a read-onlycomposite image constructedfrom all of the enabled ROIregions.

0-16

RegionMode Region Mode Controls whether the selectedregion of interest (ROI) isactive and streaming

Off = 0On = 1


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Shutter TypesGlobal ShutterFor each frame in cameras with a global shutter sensor the start and stop time for exposure is the same. The lengthof time for exposure is also the same.

For cameras with a global shutter sensor, for each frame all of the lines start and stop exposure at the sametime. The exposure time for each line is the same. Following exposure, data readout begins. The readout timefor each line is the same but the start and end times are staggered.

Increased uniform brightness and minimal motion blur are some advantages of global shutter.


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Rolling Shutter

For each frame in cameras with a rolling shutter sensor the exposure for each line begins at an offset equal thereadout time for each line. While the exposure time for each line is the same, the start and stop times arestaggered. Each line’s data readout begins immediately following the exposure. Readout time for each line hasthe same length but staggered start and stop times.

Increase sensitivity is one of the advantages of rolling shutter, however due to the varying start timesthroughout the frame, there are known artifacts such as skew, wobble and partial exposure. Please seerolling for additional information.


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Rolling Shutter with Global ResetFor each frame in cameras with a rolling shutter with global reset, the lines have the exposure start time whilethe stop time for exposure is delayed by the offset of the previous line’s readout. For each line the exposuretime gradually lengthens and data readout begins immediately following the line’s exposure. While the readouttime for each line is the same, the start and stop times are staggered.

The reduction in image artifacts such as skew and wobble that can be typical of rolling shutters is an advantageof the global reset feature. However, due to increased exposure length throughout each frame there may be anincrease in brightness moving from top to bottom on an image.


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10. GenICam FeaturesFeatures that control, monitor and query camera operation are included in the XML device description file on thecamera. Since not all operations can be controlled using the XML file those not included are controlled via CSRs.

Except where noted, these features conform to the GenICam Standard Features NamingConvention (SFNC)v1.5. The full SFNC can be found on the EMVA.org website and contains more details than provided below.Not all features are available on all cameras.

Device ControlDevice control features provides general information and control for the device (camera) and its sensor

Name Display Name Description Value(s)DeviceVendorName Vendor Name Name of the manufacturer of the device Imaging

SolutionsDeviceFamilyName Family Name Identifier of the product family of the

deviceLightWiseAllegro

DeviceModelName Model Name Model of the Device LightWiseAllegroUSB 3.0

DeviceSerialNumber Serial Number Serial number of the deviceDeviceVersion Hardware Version Version of the Hardware’s deviceDeviceFirmwareVersion Firmware Version Device’s firmware versionDeviceUserID User ID User-programmable device identifier.

Acquisition must be disabled in orderto write this value

DeviceManufacturerInfo Firmware BuildInformation

Manufacturer information about thedevice. This consists of firmware buildinformation

DeviceSFNCVersionMajor SFNC Major Version Major version of the Standard FeaturesNaming Convention that was used tocreate the device`s GenICam XML

2

DeviceSFNCVersionMinor SFNC Minor Version Minor version of the Standard FeaturesNaming Convention that was used tocreate the device`s GenICam XML

1

DeviceSFNCVersionSubMinor SFNC Subminor Version Sub minor version of the StandardFeatures Naming Convention that wasused to create the device`s GenICamXML

0

DeviceManifsetXMLMajorVersion XML Major Version Indicates the major version number ofthe GenICam XML file of the selectedmanifest entry

0

DeviceManifsetXMLMinorVersion XML Minor Version Indicates the minor version number ofthe GenICam XML file of the selectedmanifest entry

4

DeviceManifsetXMLSubMinorVersion XML Subminor Version Indicates the subminor version numberof the GenICam XML file of theselected manifest entry

0

DeviceGenCPVersionMajor GenCP Major Version Major version of the GenCP protocolsupported by the device


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DeviceGenCPVersionMinor GenCP Minor Version Minor version of the GenCP protocolsupported by the device

DeviceU3VVersionMajor U3V Major Version Major version of the USB3 Visionprotocol supported by the device

DeviceU3VVersionMinor U3V Minor Version Minor version of the USB3 Visionprotocol supported by the device

DeviceTemperatureSelector Temperature ReadingSource

Selections the location within thedevice where temperature will bemeasured

DeviceTemperature Temperature (°C) Device temperature in degrees Celsius(°C). It is measured at the locationselected by DeviceTemperatureSelector

C

DeviceTemperatureFahrenheit Temperature (°F) Device temperature in degreesFahrenheit (°F). It is measured at thelocation selected byDeviceTemperatureSelector

F

DeviceLogLevel Log Level Selects verbosity of device log entries 0DeviceReset Reset Device Resets the device to its power-up stateColumnCorrectionEnable Column FPN Correction Enable column FPN correction On = 1

Off = 0RowCorrectionEnable Row FPN Correction Enable row FPN correction On = 1

Off = 0PixelDefectCorrectionEnable Pixel Defect Correction Enable pixel defect correction On = 1

Off = 0ControllerBoardVersionBootstrap OTP Controller Board

Version #One-time programmable field to storecontroller board hardware revisionstring


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Image Format ControlName Display Name Description ValueWidth Width Width of the image provided

by the device (in pixels)Min = 8Max = Sensor Dependent

Height Height Height of the image providedby the device (in pixels

Min = 4Max = Sensor Dependent

Offset X X Offset Horizontal offset from theorigin to the region of interest(in pixels)

Min = 0Max =

Offset Y Y Offset Vertical offset from the originto the region of interest (inpixels)

Min = 0Max =

PixelFormat Pixel Format Format of the pixels providedby the device. It represents allthe information provided byPixelCoding, PixelSize,PixelColorFilter combined in asingle feature

Monochrome FormatsMono8, Mono10pColor FormatsBayer8, Bayer10p, RGB8,YCC444, YCC422

BinningHorizontal Binning Horizontal Number of horizontal photo-sensitive cells to combinetogether

Min = 1Max = 4

BinningVertical Binning Vertical Number of vertical photo-sensitive cells to combinetogether

Min = 1Max = 4

BinningAverage Binning Average Controls whether the binnedpixels are summed oraveraged

On = 1Off = 0

RegionSelector Region Selector Selects region of interest(ROI) to control. Region0represents a composite imageconstructed from all of theenabled ROI regions.

0-16

RegionMode Region Mode Controls whether the selectedregion of interest (ROI) isactive and streaming

Off = 0On = 1


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Acquisition ControlName Display Name Description ValueAcquisitionMode Acquisition Mode Sets the acquisition mode of the

device. It defines mainly the numberof frames to capture during anacquisition and the way theacquisition stops

Single Frame = 0Multi Frame = 1Continuous = 2

AcquisitionStart Acquisition Start Starts the Acquisition of the device.The number of frames captured isspecified by AcquisitionMode

AcquisitionStop Acquisition Stop Stops the Acquisition of the deviceat the end of the current frame. It ismainly used when AcquisitionModeis Continuous but can be used inany acquisition mode

TriggerSelector Trigger Selector Selects the type of trigger toconfigure

Acquisition Start = 3

TriggerSource Trigger Source Specifies the internal signal orphysical input Line to use as thetrigger

Software = 0xfcLine0 = 0

TriggerMode Trigger Mode Trigger source states Off = 0On = 1

TriggerActivation Trigger Activation Mode Specifies the activation mode of thetrigger

Rising Edge = 0Falling Edge = 1

TriggerDelay Trigger Delay Specifies the delay in microseconds(us) to apply after the triggerreception before activating it.

Min = 0Max = 67108863.0

TriggerSoftware Generate Software Trigger Generates an internal trigger.TriggerSource must be set toSoftware.

ExposureTime Exposure Time Controls the Absolute exposure timein microseconds (µs)

Min = 100.0Max = 10000000.0

AcquisitionFrameCount Acquisition Frame Count Number of frames to acquire inMultiFrame Acquisition mode

Min = 1Max = 32

AcquisitionMaxFrameCount Max Acquisition Frame Count Max number of frames that can beacquired in MultiFrame acquisitionmode. This value is a function ofimage size and pixel format

32


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Digital IO ControlName Display Name Description ValueLineSelector Strobe Selector Selects the physical line (or pin) of the

external device connector to configureStrobe 1 = 0Strobe 2 - 1

LineMode Line Mode Controls if the physical Line is used to Inputor Output a signal

Output = 1

LineInverter Invert Strobe Output Controls the inversion of the signal of theselected input or output Line

Invert StrobeInput Invert Strobe Input Custom feature: On this device, this controlsthe inversion of the signal entering the strobecontrol block. This should be adjusted suchthat an active-high signal enters the strobecontroller

LineSource Strobe Source Selects which internal acquisition or I/Osource signal to output on the selected Line.LineMode must be Output

LineFormat Line Format Controls the current electrical format of theselected physical input or output Line

Opto Coupled = 5

StrobeDelay Strobe Delay (µs) Controls the delay (in microseconds) of thesignal of the selected output Line

Min = 0Max = 1000

StrobeDuration Strobe Duration (µs) Controls the delay (in microseconds) of thesignal of the selected output Line

Min = 0Max = 1000


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Analog ControlName Display Name Description ValueGainSelector Gain Selector Selects which Gain is

controlled by the various Gainfeatures

DigitalAll = 0x40

Gain Gain Controls the selected gain asan absolute physical value.This is an amplification factorapplied to the video signal

Min = 1.0Max = 31.99

BlackLevelSelector Black Level Selector Selects which Black Level iscontrolled by the variousBlack Level features

0

BlackLevel Black Level Controls the selected blacklevel as an integer value. Thisis an offset factor subtractedfrom the video signal

Min = -512Max = 512

BalanceRatioSelector Balance Ratio Selector Controls the mode forautomatic white balancingbetween the color channels.The white balancing ratios areautomatically adjusted

Red = 0Green = 1Blue = 1

BalanceRatio White Balance Ratio Controls ratio of the selectedcolor component to areference color component. Itis used for white balancing

Min = 0

BalanceWhiteAuto Auto White Balance Controls the mode forautomatic white balancingbetween the color channels.The white balancing ratios areautomatically adjusted.

Off = 0Once = 1

Saturation Saturation Controls the SaturationControl Coefficient

Min = 0.1Max = 7.9

SaturationEnable Saturation Enable Enables the Saturation Off = 0On = 1

Gamma Gamma Controls the gammacorrection of pixel intensity

Min = .2Max = 1.0

GammaEnable Gamma Enable Enables the gamma correctionof pixel intensity

Off = 0On = 1

Transport Layer ControlName Display Name Description ValuePayLoadSize Pay Load Size Provides the number of bytes transferred for each

image or chunk on the stream channel. This includesany end-of-line, end-of-frame statistics or other stampdata. This is the total size of data payload for a datablock

CurrentSpeed Current Speed Current speed of USB bus Low Speed = 0Full Speed = 1High Speed = 2Super Speed = 3


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User Set ControlName Display Name Description ValueUserSetSelector User Set Selector Select the feature user set to

load, save, or configure0

UserSetLoad Load Selected User Set Loads the User Set specifiedby UserSetSelector and makesit active

UserSetSave Save Selected User Set Save the User Set specified byUserSetSelector to the non-volatile memory of the device

UserSetDefault Default User Set Select the feature user set toload and make active bydefault when the device isreset


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11. Trouble Shooting

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