Cleaning The Filter Glasses - THORLABS DCU223x Operation Manual And Sdk

5.4.7.3 Cleaning the Filter Glasses

When using the DCx camera with it's lens removed, the filter glass may become soiled from outside. This might be
visible in captured images. In such case, the filter glass needs cleaning.
Note
It is strongly recommended to return the cameras to manufacturer for professional cleaning.The manufacturer is
not liable for any damage resulting from cleaning the filter glasses. This even applies if the following instructions
have been observed.
Instructions for cleaning DCx camera filter glasses
The filter glasses can be cleaned only from outside. If remove the filter glasses, the sensor might become soiled.
Thorlabs is not liable for any damage to the sensor resulting from removal of the filter glasses.
First, remove dirt particles on the glass using compressed air. Do not use compressed air from compressors or
spray cans since it often contains oil droplets or droplets of other liquids. For best results, use purified nitrogen
from nitrogen bottles.
Only use lint-free wipes or cotton-free swabs for cleaning. Never touch the filter glasses with bare fingers - it's
mostly difficult to remove fingerprints completely!
We recommend to use pure alcohol for cleaning. 100% isopropyl alcohol evaporates without leaving any
residues. Only add small quantities of alcohol to the wipe. Never pour alcohol directly onto the camera.
Attention
Never use cleaning agents containing acetone for cleaning the filter glasses! Acetone may damage the filter glass
coating and may deteriorate the optical quality of the glasses.
Cameras with fixed filter glass
Use a wipe to remove dust particles in a single sweep over the edge of the filter glass (see figure below).
Cameras with replaceable filter glass
Use a wipe to remove dust particles in a circular sweep (see figure below).
© 2013 Thorlabs GmbH
Cleaning fixed DCx filter glasses
Cleaning interchangeable DCx filter
glasses
5 Specifications
485