ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Rosco makes diffusing films (milky white) that come in different
densities.  It can be purchased in rolls and you just cut off what you
need.  If you get something below say <25% density you can stack the
stuff as needed right over top of the tubes.  You give up a little
brightness in exchange for even light.  

It's all meant for use in lighting/theater work and can be used right up
against all but the hottest lamps.  Find the local theater supply house
(I bet you there are quite a few right there in Queens) and ask for a
sales rep to describe the products and get samples. It also wouldn't
supprise me if you go ask the exhibit depatment and they will already
have some. And actually Rosco makes all kinds of great colored filters
and other usefull stuff.  As a holographer I made great use of their
green filter stock for safelights and the "black" aluminum foil for
light baffles.


Erich Rose
Exhibit Manager
Austin Children's Museum
201 Colorado Street
Austin, TX 78701
512-472-2499 ext 207
 

-----Original Message-----
From: Informal Science Education Network
[mailto:[log in to unmask]] On Behalf Of martin weiss
Sent: Thursday, August 02, 2007 2:07 PM
To: [log in to unmask]
Subject: Back-lighted text labels

ISEN-ASTC-L is a service of the Association of Science-Technology
Centers Incorporated, a worldwide network of science museums and related
institutions.
************************************************************************
*****

	We are mounting some back-lighted text labels and the florescent
bulbs are showing hot spots. I think there are diffusers to even out the
light.

	Can you let me know what they are and where we can get them?

Thanks

Martin
--
Martin Weiss, Ph.D
Consultant
Science Interpretation
New York Hall of Science
47-01 111 th Street
Corona, New York 11368
718 699 0005 x 356

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