How to storage and clean Optical thin film coating filters !

All optical components are precision instruments component , especially optical thin film coating filters ,it’s surfaces are easily scratched . Improper cleaning and storage may damage the film/coating of the filters . So, correct maintenance is extremely important .

Now , we will talk about the small details that should be paid attention to when we using optical filters :

1.?In the normal use process should be as careful as possible to take and put ,and pay attention to the external environment , to avoid clothing zippers ,buttons and other scratches to the filter, or put the filter in a dirty or dusty place .

2.?Wear finger gloves when touching the filter to prevent salt and acid from corroding the surface of the filter .

3.?Hold the edge of the filter in your hand when taking it off . Even if you are wearing a finger cap, do not touch the transparent surface of the filter .

4.?The filter should be put on a soft and clean objects , not a glass,metal ,table or dirty paper .

5.?Storage should be placed in a clean capacitor paper or dedicated lens cleaning paper wrapped .

Storage temperature is best around 23℃ or so , humidity is not higher than 40% . Better in a dry storage cabinet .

6.?Clean surface as soon as you see stains . Because dust is easy to make the surface scraping ,and the acid material left by your fingers careless if it is stays too long , it’s easy to react with the surface coating material , thus becoming a permanent stain .

7.?If there are stains or fingerprints on the surface, clean with anhydrous ethanol similar functional solvents . The specific method is as follows: put dust-free finger sleeve on the finger , soak the towel with anhydrous ethanol, drag the edge of the towel soaked with ethanol , and move in a single direction on the filter surface . Wipe as slightly as possible . Too much pressure can damage the filter surface . The purpose of using a solvent is to dissolve adhesive attachments from residues on the filter surface .?

8.?Do not stack the filters together to avoid fraying .

In addition, the maintenance of different optical filters depends on the type of product and the important nature of care. The above methods are only for optical glass, and are not completely suitable for optical filters of other substrate materials such as plastics. If you have any questions, please contact us.