Instruction manual

Prosilica GC Technical Manual V2.0.8

Introduction

Color cameras with IR filter

Prosilica GC color cameras are equipped with an IR filter. With no lens or lens

cap on a camera, the IR filter is exposed and debris can accumulate on it. This is

the most probable location for debris. It should not be necessary to remove the

IR filter for cleaning. Clean the outside of the IR filter glass using the tech-

niques explained in the next section.

If it is determined that the debris is on the inside surface of the filter glass, or

on the sensor glass, IR filter removal is necessary. Depending on the manufac-

turing date of your Prosilica GC camera, the IR filter may be slot type, or pinhole

type. Slot type filters can be removed using a small flat head screw driver. Pin-

hole type filters require a pin spanner wrench for removal.

Cleaning with air

Blow directly on the contaminated surface with moderate pressure, clean com-

pressed air.

View a live image with the camera after blowing. If debris is still present, repeat

the process until it is determined that the particulate cannot be dislodged. If

this is the case, proceed to the contact cleaning technique.

Contact cleaning

Only use this method if the above air cleaning method does not sufficiently

clean the surface. Use 99% pure isopropyl alcohol and clean cotton swabs. Wet

the swab in the alcohol. Quickly wipe the optics in a single stroke. Prolonged

exposure of alcohol on the swab can cause the swab glue to loosen and transfer

to the optic glass. Do not reuse the same swab. Repeat this process until the

debris is removed. If this process fails to remove the debris, contact AVT.

Note



A pin spanner wrench suitable for IR filter removal is available

for purchase from AVT.

AVT P/N: E9020001

Caution



Do not exceed 6 bar (90 psi). If using canned air, approxi-

mately ~ 4.8 bar (70 psi) when full, do not shake or tilt the

can, as extreme changes in temperature due to sudden cold

air can crack the optic glass.