Old 05-12-2016, 06:16 PM #1
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Hello everyone.


What filter (UV, ND4, CPL, ...) suitable for output galvos?


Best Regards.

Juanma.



Last edited by juanma666; 05-12-2016 at 06:16 PM.
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Old 05-12-2016, 07:40 PM #2
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Default Re: filter

Quote:
Originally Posted by juanma666 View Post
Hello everyone.


What filter (UV, ND4, CPL, ...) suitable for output galvos?


Best Regards.

Juanma.
Do you mean for the mirrors on the galvos?
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Old 05-12-2016, 07:47 PM #3
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Default Re: filter

Hi.

No, I mean the glass protecting the Galvos output.


Last edited by juanma666; 05-12-2016 at 07:53 PM.
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Old 05-12-2016, 07:52 PM #4
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Default Re: filter

Quote:
Originally Posted by juanma666 View Post
Hi.

No, I mean the glass protecting the Galvos output.

Ahh I see - what wavelength(s) are you using?
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Old 05-12-2016, 07:55 PM #5
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Default Re: filter

RGB

532nM
637nM
445nM
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Old 05-12-2016, 08:06 PM #6
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Default Re: filter

You can use regular glass to be honest ... you'll just lose a chunk of power 5-10% or so.

You can get AR coated glass here: Anti-Reflection (AR) Coated High Efficiency Windows

As far as I can see all of the windows on that page are broadband (425nm-700nm) AR (Anti-reflection) coated. Just need to pick a suitable size and double check the specifications to see if it meets your needs. Loss with AR coated glass is more like ~1%.

There are other sources - search around for AR coated glass. Maybe search on Photonlexicon - there have been threads about this before.
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Old 05-12-2016, 08:25 PM #7
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Default Re: filter

Thank you very much for your help.
Look for information in the Forum.


Best Regards.
Juanma.
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