Slant angle laser scanner

Details Slant angle laser scanner Slant angle laser scanner

1989-10-20

1992-09-08

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356141, 340984, G01C 308, G01B 1126, G08B 2300

Patent

active

051462877

ABSTRACT:
A slant angle laser scanner for detecting underwater hazards, particularly those having a long axis along a radial from the ship such as torpedoes, using a laser, an electro-optical scanner and a rotatably mounted mirror to scan the ocean surface with optical beams at a low angle of incidence to form a circular pattern of radial scans surrounding the ship. The time of return of reflections can be measured to determine the depth of the hazard and the element illuminated within the liner array of photosensitive detectors indicates the location of the hazard along the radial scan. A boresight detector is used to detect the reflections and determine location and depth of the hazard.

REFERENCES:
patent: 3278753 (1966-10-01), Pitts et al.
patent: 4290043 (1981-09-01), Kaplan
patent: 4324491 (1982-04-01), Hueber
patent: 4326799 (1982-04-01), Keene et al.
patent: 4518254 (1985-05-01), Penny et al.
patent: 4690551 (1987-09-01), Edwards et al.
patent: 4755818 (1988-07-01), Conrad

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