[Laser] cheap filters

Thu, 26 Jun 2003 20:58:14 -0400

On Thu, 26 Jun 2003 01:34:21 -0400 "W2MXW" <[email protected]>
writes:
> Note that most commonly available materials (glasses, plexiglas, 
> cellophane,
> etc.) will not attenuate 850 nm. To exclude IR as well as unwanted 
> visible
> you need a bandpass filter. Intor, Inc. (www.intor.com) has 
> dielectric
> narrowband filters easily as good as Edmund's at half the price. (I 
> am not
> affiliated in any way with Intor, just a satisfied customer). 

Nice site with good info and EZ  access

Bob  K3DJC