Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-06-13
1990-07-31
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
350 64, H01U 314
Patent
active
049452878
ABSTRACT:
A scanning device for causing a beam of light to be repetitively swept across a surface includes a laser source for providing a beam of laser light and a pentaprism assembly which redirects the beam of light to the surface. The pentaprism assembly includes a support member and a plurality of pentaprism elements positioned around the periphery of the support member. An arrangement is provided for rotating the support member such that successive ones of the plurality of pentaprism elements are brought into the path of the beam of light and redirect the beam of light to the surface. Movement of each pentaprism element while intersecting the beam of light causes the beam of light to sweep across the surface. The scanning device may also be used without a laser source to scan ambient light which is reflected from a surface and direct the light to a detector.
REFERENCES:
patent: 3471236 (1969-10-01), Pearson
patent: 3817593 (1974-06-01), Harris et al.
patent: 3828124 (1974-08-01), Baum
patent: 3875587 (1975-04-01), Pugsley
patent: 3966328 (1976-06-01), Wiklund
patent: 4002830 (1977-01-01), Brown et al.
patent: 4170028 (1979-10-01), DeBenedictis et al.
patent: 4268110 (1981-05-01), Ford
patent: 4304459 (1981-12-01), Kramer
patent: 4319807 (1982-03-01), Horton
patent: 4321700 (1982-03-01), Russell
patent: 4363539 (1982-12-01), Gerber
patent: 4433894 (1984-02-01), Hanson et al.
patent: 4468119 (1984-08-01), Hammer
patent: 4475787 (1984-10-01), Starkweather
patent: 4544228 (1985-10-01), Rando
patent: 4606601 (1986-08-01), Starkweather
patent: 4768184 (1988-08-01), Reno
Eotron Corporation
Nelms David C.
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