Opticon NLV-5201 - Solution for Specular Reflection of the Illumination

Chapter-2
Before Using
NLV-5201 User's Manual
29
1st
Solution for Specular Reflection of the Illumination
2.12.2
Placement of the exit window has limitation on the distance and angle to prevent reflection of the LED
illumination.
To avoid the reflection of LED, tilt the scanner and exit window for about 18 degrees in vertically.
* Obtain the image in the condition range to be used and design placement so that there is no reflection of the
LED illumination.
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➔
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* Keep a minimum clearance between the scanner and the exit window of 1mm because of the dimensional
tolerances of the mounting holes
* Use of AR coated material for the exit window is recommended.
* External light is not factored in.
* Confirm that there is no reflection of the LED illumination off the exit window by acquiring images from the
scanner.
Exit window
Scanned target
18
°
18
°