Distance detecting device

Details Distance detecting device Distance detecting device

1977-08-02

1979-09-18

Wintercorn, Richard A.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250208, 352140, 353101, 355 55, G03B 708, G03B 300, G03B 2752

Patent

active

RE0300993

ABSTRACT:
A distance detecting device utilizable in an optical device such as a camera and the like requiring focusing operation of the optical system thereof. The detecting device enables the adjustment of the relative optical length between the group of light receiving elements arranged adjacent to the image forming plane of the object to be measured by the distance measuring optical system and the distance measuring optical system. The detecting device is characterized in that the output of each of the light receiving elements of the groups is introduced through an electric switching device for effecting the time seriation of the outputs of the respective light receiving elements into a common signal processing circuit, so as to adjust the relative optical length by means of a motor provided in responsive relationship to the output of the signal processing circuit thereby permitting the focusing of the image on the groups of the light receiving elements to be made to the most proper condition.

REFERENCES:
patent: 3274914 (1966-09-01), Biedermann et al.
patent: 3529528 (1970-09-01), Leitz
patent: 3532045 (1970-10-01), Genahr
patent: 3713371 (1973-01-01), Kurihara et al.
patent: 3904869 (1975-09-01), Stauffer

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