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IR filter for green laser, is this one okay?

leo.b

New member
Joined
Apr 3, 2020
Messages
8
Points
3
Hello,

i bought on ebay a IR blocking lens for my 532nm green laser, but im not sure if this lens also blocks the 1064nm infrared, because it says something with:T: < 1% @ 1050nm.

I cant insert a link, but here is the description.


Listing is for:
- (2 Pieces) 2x 9.5mm Optical UV-IR Cut UV IR Blocking Filter for Camera - Mobius - Astronomy - Lens

Dimensions:
9.5mm Diameter Circular Size
1mm Thickness

Spectrum Parameter:
Tavg >95% @440-620nm
T =50% @648+-15nm
Tavg < 1 @ 700-1000nm
T: < 1% @ 1050nm
I am very thankfull for an answer
greetings from switzerland.... ✌🏻
 



paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
17,464
Points
113
Welcome to the LPF, Leo. I purchased 5 IR blocking filters over six years ago. They had a better pass than 95% at 532nm and blocked the 1064nm IR that is present at values up to 20% from modules I have worked with at better than 98%. You should be able to find them still on eBay. They were quite inexpensive when I bought mine. I would search for IR blocking filters for 532nm lasers.
 




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