Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1994-08-29
1996-01-23
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
2502086, 356 316, 3561413, H01J 4014, G01C 308
Patent
active
054866901
ABSTRACT:
A laser light detector is provided which can be used to detect pulsed laser light that is produced by a rotating laser light source on a construction job site. The laser light detector provides an easily-read display which is indicative of the present level or elevation of the laser light detector with respect to the plane of rotating laser light. The laser light detector has a very large dynamic range, while maintaining a very good signal-to-noise ratio, and can, therefore, be used at both short and long distances from the rotating laser light source. The laser light detector is not dependent upon the energy level received of laser light, or by the spot size of laser light as it reaches the light detectors. The laser light detector is available with several options, including dead band adjustment and audible indication of the elevation.
REFERENCES:
patent: 3649122 (1972-03-01), Holtz
patent: 4062634 (1977-12-01), Rando et al.
patent: 4240208 (1980-12-01), Pehrson
patent: 4676634 (1987-06-01), Petersen
patent: 4732471 (1988-03-01), Cain et al.
patent: 4830489 (1989-05-01), Cain et al.
patent: 4907874 (1990-03-01), Ake
patent: 4976538 (1990-12-01), Ake
patent: 5000564 (1991-03-01), Ake
Allen Stephone B.
Apache Technologies, Inc.
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