Holographic plate exposure meter

Details Holographic plate exposure meter Holographic plate exposure meter

G - Physics

01

J

73/51, 88/0.14

G01J 1/00 (2006.01) G01J 1/42 (2006.01)

Patent

CA 1137327

ABSTRACT OF THE DISCLOSURE A photographic exposure meter in visualization equipment for detecting the presence or absence of a pulse of laser light on a target. Light from a laser pulse which forms the hologram, is scattered when it impinges on the target plate and detected by a photodetector, the resultant pulse signal being integrated and amplified. The out- put pulse, proportional to the hologram exposure, is fed to a storage oscilloscope for convenient display.

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