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- Xref: sparky sci.electronics:21840 sci.physics:22018
- Path: sparky!uunet!mcrware!grayhawk.rent.com!iowegia!quest
- From: quest@iowegia.uucp (Steve J. Quest)
- Newsgroups: sci.electronics,sci.physics
- Subject: Re: Lasers/collimated light in RGB?
- Message-ID: <ZZqowB4w165w@iowegia.uucp>
- Date: Fri, 01 Jan 93 00:39:10 CST
- References: <1992Dec29.195908.15003@radian.uucp>
- Distribution: world
- Organization: Iowegia Public Access Usenet/UUCP, Clive IA USA.
- Lines: 27
-
- jlange@radian.uucp (John Lange) writes:
-
- > In nightclubs I have recently seen light effects which apparently
- > use bright red, green, and blue lasers which are modulated with
- > mirrors (I think) to do interesting things like project color
- > images on a wall. The red could be a simple He-Ne laser, but what
- > about the green and the blue? I know these light sources can be
- > made with expensive
- >
-
-
- John,
-
- You can get colored laser light many ways. Primarily
- today, we use an Argon/Krypton mix gas laser for continuous wave
- "nearly white" laser light. The Argon/Krypton lasers produce
- laser energy in just about every band from UV to IR, with many
- bands in the blue and green spectra.
-
- The old way was to use an Argon and a HeNe laser together,
- about 100mw of Argon- prism split mixed with about 20 to 30mw of
- HeNe 630nm red. The Argon produced both blue and green, many
- bands of each- and when mixed with green gave a suitable orange to
- orange yellow laser. Nice effects..............sq
-
- (the beams are scanned using General Scanning scanners.....)
-
-