Optical beam projector

Details Optical beam projector Optical beam projector

G - Physics

02

B

88/100

G02B 15/14 (2006.01)

Patent

CA 1100344

BEAM PROJECTOR Abstract of the Disclosure A beam projector is provided by a plurality of coded reticles mounted on a spinning disc and illuminated by a laser source. In order to maintain a constant irradiance on a receiver variably located in space a pseudo-zoom assembly is provided including a movable source and/or condenser optics. Also, plural focal length optics are employed to expand the range over which the constant irradiance is maintained beyond that realizable by the pseudo-zoom assembly itself.

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