[Laser] cheap filters
Kerry Banke
[email protected]
Fri, 27 Jun 2003 07:44:20 -0700
Andy - I'll check the response of some dichroic filter material I have &
will let you know the results. If it fits your needs, I'll send you a
couple of about 1/2" square pieces. I know it works well for the 650 nm
laser pointers we're using but don't recall the response at 850.
- Kerry N6IZW -
At 05:13 PM 6/25/03 -0400, you wrote:
>Anyone have any suggestions on cheap bandpass filters for visible red
>lasers? I'm looking for something that would pass 630-700nm, but have
>substantial attenuation at 850nm. The reason for this is to get rid of
>the 850nm line spectrum from sodium lamps. I'm thinking about cellophane
>or plexiglass that I might be able to find easily. I thought I would ask
>here before I went to the lab via the craft store....
>
>Andy
>
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