Range determination system

Details Range determination system Range determination system

1978-06-05

1980-01-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

354 25, G01J 120

Patent

active

041851919

ABSTRACT:
A system for determining the range to an object utilizing a plurality of radiation responsive detectors such as charge coupled devices arranged in groupings where a first grouping of detectors receives radiation from the object primarily through a first portion of a lens and a second grouping of the detectors receives radiation from the object primarily through a second portion of the lens. There is a predetermined relationship between the outputs of the detectors in the first grouping with respect to the detectors in the second grouping when the object is at a predetermined range and changes in the range of the object produce changes in the relationship so as to produce a resultant signal which varies with the range and which may be used for the automatic focussing of photographic or television cameras.

REFERENCES:
patent: 3274914 (1966-09-01), Biederman et al.
patent: 3836772 (1974-09-01), Stauffer
patent: 3838275 (1974-09-01), Stauffer
patent: 3875401 (1975-04-01), Stauffer
patent: 3904870 (1975-09-01), Stauffer
patent: 3906219 (1975-09-01), Stauffer
patent: 3945023 (1976-03-01), Stauffer
patent: 3958117 (1976-05-01), Stauffer
patent: 4002899 (1977-01-01), Stauffer
patent: 4071297 (1978-01-01), Leitz et al.
patent: 4083056 (1978-04-01), Nakamura et al.

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