But if you are looking into UV a glass prism can get in your way!

-- Bob Ammerman
RAm Systems=20

-----Original Message-----
From: piclist-bounces@MIT.EDU [mailto:piclist-bounces@MIT.EDU] On Behalf Of
John Gardner
Sent: Tuesday, January 15, 2013 10:01 PM
To: Microcontroller discussion list - Public.
Subject: Re: [EE]:: LED lighting believed to cause fading in some pigments
inhistorical paintings

....Can't a simple prism be used to separate the spectrum?

Sure. Early spectrophotometers mechanically swept

a prism-generated spectrum.
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