Date: Wed, 30 Nov 2005 21:22:39 -0500

Author: "Dick Heckathorn"

Subject: RE: Diffraction Grattings

Post:

Greetings,

Try Sgt Welch. Catalog # CP86250-01 for 300 lines/mm.

They also have 100, 200, 600 lines/mm.

Also 500 and 1000 lines/mm.

Dick


Helping teachers who facilitate, motivating students who learn.
Dick Heckathorn 14665 Pawnee Trail Middleburg Hts, OH 44130
440-826-0834
www.cvcaroyals.org/~rheckathorn
Physics is learning how to communicate with ones environment so that it
will talk back.


-----Original Message-----
From: owner-tap-l@listproc.appstate.edu
[mailto:owner-tap-l@listproc.appstate.edu] On Behalf Of Eric Ayars
Sent: Wednesday, November 30, 2005 6:24 PM
To: tap-l@listproc.appstate.edu
Subject: Re: Diffraction Grattings

If you can use 750 l/mm grating, the "project star" grating material
is unbeatable. Very bright, and not expensive.
http://www.starlab.com/psprod.html#Anchor-Holographic-35882

It comes in rolls and sheets as well as in slides -- I cut it to size
and give it away at demos.

Not 300 l/mm, though...
-EA

-----------------------------------------------------------------
Dr. Eric Ayars
Assistant Professor of Physics
California State University, Chico
ayars@mailaps.org


On Nov 30, 2005, at 12:33 PM, Ron Maxell wrote:

>
>
> Dear Tappers:
>
> I am looking for a source of 300 lines per mm Diffraction
> Grattings , 2 inch by 2 inch for our freshman labs.
>
> Any ideas?
>
>
> Ron Maxell
> Physics Instructional Labs
> University of Washington
> Seattle, Washington
>





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