January, 2020

Panasonic i-PRO Sensing Solutions Co., Ltd,

No. Description Type/Model Phenomenon (normal) Phenomenon (abnormal) Cause Corrective Action

1

Glare during

black-and-

white

operation

Outdoor IR-LED dome

* Glare during black-and-white mode (IR-

LED) operation

* No abnormality during color operation in

daytime or nighttime

* Occurs only when camera is in black-

and-white/IR-LED mode Inappropriate camera position

* Move the camera position and find a view angle

that does not reflect the IR-LED.

2

Glare during

black-and-

white

operation

Outdoor IR-LED dome

It can be determined that incident light

from above the lens is affecting the image

because the glare is comparatively strong

near the bottom of the image (but may be

the opposite for models with an image

reversing feature)

Bright light generated from a light

source (fluorescent lamp) installed

under nearby eaves being reflected

onto the image

* Change the installation location and/or angle so

that the light does not affect the image

* Consider a light shield so that the light from the

source does not shine directly on the lens

* Adjust the maximum exposure time and adjust

camera sensitivity on the camera settings screen

*Consider operating with “Auto1” or “Auto3

(SCC)” that does not use IR-LED because there is

light in the surroundings

3

Affected by

nearby

objects

Indoor dome -

* No abnormality while light is on (during

color operation)

* Glare occurs only when the camera is in

black-and-white/IR-LED mode with the

ceiling light off

* A white-colored sensor is nearby

Because a flame detector is positioned

near the IR-LED irradiation opening of

the camera, the infrared light issued

from the camera is reflected by the

flame detector, and is incident on the

camera

* Confirm that there are no reflective items near

the camera before installing

* If installation is already complete, separate from

the reflective object as much as possible

4

Reflection

from a wall

surface

Indoor dome -

* No abnormality while the ceiling light is

on (color operation)

* Glare occurs only when the camera is in

black-and-white/IR-LED mode with the

ceiling light off

* Installed in a ceiling corner adjacent to a

white wall

Caused by infrared light from the

camera reflecting off a wall (shaded

area) incident to the camera

* Install away from walls

* Try decreasing the “maximum exposure time” in

the camera settings

* Try decreasing the IR-LED intensity in the same

manner

* Change the view angle

To avoid/reduce reflected glare by IR LED or otherenvironment on box, dome and 360-deg. cameras

Depiction of reflected infrared light

Imaging direction

Incident light

This describes how to avoid/reduce reflected glare in areas other than in the subject area of images of box, dome and 360-deg. cameras.

The shapes of the ceiling

light and the glare match

1/3

No. Description Type/Model Phenomenon (normal) Phenomenon (abnormal) Cause Corrective Action

5

Affected by

glare from

rain gutters

(vinyl straps,

etc.)

Outdoor box -

* No problem during color mode in

daytime and occurs only at night (when

using IR)

* Outdoor use

* Adjacent to a wall, rain gutter, or other

object

* The IR-LED light is affected by

reflected light off of vinyl straps that are

tightly wound about a nearby rain gutter

* Check the installation location and view angle so

that gutters and vinyl straps do not affect the

image

* Remove the rain gutter or vinyl straps

6

Image that

looks like

fog

Outdoor dome

* The image appears as if the entire

screen is covered in fog

* The problem occurs during IR-LED

mode

A condensation-like spray coats the

clear dome surface because the

camera is used in an environment

where fog-like spray occurs, and the

image is improved by removing the

clear dome

* Relocated to a place where the spray has no

effect

* Use a camera with a wiper or a housing

* Wipe the dome frequently

7

IR-LED

reflection off

of reflective

roadside

plates

Outdoor box

* No abnormality during color operation in

daytime or nighttime

* Poles installed for monitoring mountain

slopes, no streetlights in the surrounding

area

* Likely to occur with the camera in black-

and-white/IR-LED mode during dark

nights without any moonlight

* Incident light from the lower part may

be affecting the lens because a strong

glare is visible in the upper part of the

image

* Bright reflective plates captured on the

bottom of the image are most likely the

cause

Because the environment is very dark without any

outside lighting nearby, the effect is conspicuous

because of overlapping factors such as the iris

being nearly fully open and the electronic

sensitivity being near maximum, and sensitivity

being high due to improved sensor performance

On days with moonlight or when there are

automobile lights, the glare is reduced or

eliminated because the iris constricts and

sensitivity is reduced automatically

8Glare from

spider websOutdoor box -

* White shadows appear on the left and

right of the image

* No outdoor obstacles or lighting for

monitoring rivers

* The surrounding area is rural and poles

are installed

* Glare occurs only at night with black-

and-white/IR-LED mode

* Spider webs within the view angle in

front of the camera are reflecting IR-

LED light

* Clean periodically

* Remove the spider webs

Light from the left side may be affecting the

lens since a strong glare is visible on the

right side of the image.

Light from the lower part may be

affecting the lens since a strong

glare is visible in the upper part of

the image.

Spider web (from the front)

Spider web (from the side)

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No. Description Type/Model Phenomenon (normal) Phenomenon (abnormal) Cause Corrective Action

9

10

Reflected

light

seen in

the

image

360-degree

Camera

(Outdoor/IR-

LED)

（Camera installed on the ceiling,

distance from the wall: 3ｍ

/approx. 9.84-ft）

（Camera installed on the ceiling,

distance from the wall: 0.3ｍ

/approx. 0.98-ft）

When night shooting with IR-LED, be

aware that reflected light may be seen

in captured images if the ceiling is close

to the camera installed on the wall, or

the wall is close to the camera installed

on the ceiling.

Keep 3 meters (9.84-ft) or more of the distance

between the fixation position of the camera and

ceiling or wall.

（Ex.The camera is installed on the ceiling）

11

Partial low-

intensity of

IR LED on

the image

depending

on the setup

or the using

condition

PTZ Camera

(Outdoor/IR-LED)

(While shooting with the zoom ratio set to

"Wide")

The image may have some shadows:

- when shooting during the nighttime

- with the IR LED on

- with the camera mounted on the

ceiling at the tilt angle of elevation of

30° (from the horizontal line)

- when shooting the subjects close to

the camera

- with the zoom ratio set to "Wide"

The shadows can be reduced by:

- adjusting the zoom ratio to the “Tele” side

- setting the tilt angle to the horizontal line

◇Revision　history

September 2018 ◆Added information on 360-degree CameraJanuary 2020 ◆Added information on PTZ camera(Outdoor/IR-LED) in the line#11

<Reference>

IR-LED lighting disperses in a wide angle. In general, because infrared light has low directionality, it disperses not only in front of the lens but also in a range of approximately 180-deg. in the horizontal and vertical

directions from the light source. When glare occurs, check for reflective objects in this range

Month, Year Revised contentNovember 2017 ◆First edition

Product measures to prevent IR-LED light reflection

Sun shade without LED(One-color exterior)

WV-SPW310, SPW611J, etc.

Sun shade with LED(Black matte coating on back)

WV-SPW611LJ, SPW631LJ, etc.

Image of the affected range (horizontal direction)

Image of the affected range(vertical direction)

ceiling

wallKeep 3 meters

(9.84-ft) or more．

0.3ｍ3ｍ

Reflected light

The intensity of IR LED is partially low on the

image

horizontal line

angle of

elevation 30°

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