G - Physics – 02 – B
Patent
G - Physics
02
B
26/197
G02B 5/20 (2006.01) G02B 26/10 (2006.01) G02B 27/09 (2006.01)
Patent
CA 1251624
GAUSSIAN LASER BEAM FILTER Abstract of the Disclosure A method for constructing an optical filter for use in a holographic scanner includes exposing a photographic film to a laser, developing the film and reinserting the developed film into the output beam of the laser to provide a uniform illumination of the outputted beam.
459613
Ncr Corporation
Smart & Biggar
LandOfFree
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