ALLIED Vision Technologies Bigeye G-1100 Cool - Manual (Page 53)

AVT GigE Cameras Installation Manual V1.0.0
53
Appendix
Where is the impurity? – Locating impurities
Before you dismount the lens you should find out if the impurity is on the filter,
lens or sensor. Therefore, you should capture a uniform image (e.g. a white
sheet of paper) with the camera. The affected optical surface is identified when
a suspected optical component is moved and the dirt follows this movement.
1. If you move only the lens (not the camera) and the impurity moves as
well, the impurity is on the lens.
2. If you move the IR cut filter/protection glass window and the impurity
moves as well:
Please carefully remove the filter/protection glass and clean it on both
sides using the techniques explained below.
3. If the impurity is neither on the lens nor the IR cut filter/protection glass,
it is probably on the sensor.
Cleaning Instructions
Perform all cleaning operations (lenses, filter/protection glass, and sensor) in
a dust-free clean-room. The optical components are very fragile so it is import-
ant to avoid touching them with your fingers or any hard material.
1. Unplug the camera from any power supply before cleaning.
Note

• Taking out the filter requires special care.
• Ask your dealer to help you if you are not
confident with the procedure.
Figure 43: Removing IR cut filter/protection glass using special tool (E9020001)
Note

Bigeye G cameras have the sensor in a vacuum housing. This
vacuum housing is dust-free.
Therefore there is no need to clean the sensor.
• Do not open the vacuum housing.