Article View: sci.physics
Article #7569Re: reflective light modulator
From: Carl Witthoft
Date: Thu, 25 Jun 1987 11:40
Date: Thu, 25 Jun 1987 11:40
26 lines
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1589 bytes
In article <12862@topaz.rutgers.edu> ron@topaz.rutgers.edu (Ron Natalie) writes:
>How about liquid crystals? Seems like you ought to be able to place
>a sheet in front of the corner reflector which would also keep dirt
>off the mirrors as well
>
> LCD-material
> V
> |\
>Beam | \
>----------------> | > <- corner reflector
> | /
> |/
Can this work? I'm worried about two things: 1) polarization changes
as beam bounces off corner cube, and resultant mess w/ polarization sensitivity
(if any) of LCD, 2) I hear LCD's can't run DC, so need to pulse the beam
on&off at some rep rate, which may not be acceptable.
--
Alix's Dad ( Carl Witthoft @ Adaptive Optics Associates)
{ima,harvard}!bbn!aoa!carl
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!ll-xn!husc6!bbn!aoa!carl From: carl@aoa.UUCP (Carl Witthoft) Newsgroups: sci.physics,sci.electronics Subject: Re: reflective light modulator Message-ID: <320@aoa.UUCP> Date: Thu, 25-Jun-87 07:40:36 EDT Article-I.D.: aoa.320 Posted: Thu Jun 25 07:40:36 1987 Date-Received: Sat, 27-Jun-87 09:39:58 EDT References: <845@ssc-bee.ssc-vax.UUCP> <12862@topaz.rutgers.edu> Reply-To: carl@aoa.UUCP (Carl Witthoft) Organization: Adaptive Optics Assoc., Cambridge, Mass. USA Lines: 26