IR Sensors

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Article #20394

#20394

From: Greg Bell
Date: Fri, 13 Jan 1989 06:16

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    Was the fresnel lense on the sensor you took apart mounted flat, or was it
bent in a curve?    The fresnel lenses I got from Amperex are supposed to be
flat, but I'm wondering if I'd be able to get better coverage with a bit of
bending.   They're not your usually fresnel lenses, though.  Each element is
made up of several concentric circle-lenses (I'm sure there's a term for
this). 
 
      

    Greg Bell_________________________________________________________
      Hardware hacker          |
      Electronics hobbyist     | UUCP:  uunet!serene!pnet12!gbell
      EE major at UC San Diego |

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!ncrlnk!ncr-sd!serene!pnet12!gbell
From: gbell@pnet12.cts.com (Greg Bell)
Newsgroups: sci.electronics
Subject: IR Sensors
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Date: 13 Jan 89 06:16:06 GMT
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