Adjustable photoelectric detector

Details Adjustable photoelectric detector Adjustable photoelectric detector

1977-12-19

1980-06-24

Hix, L. T.

Radiant energy

Photocells; circuits and apparatus

Housings

250231SE, 354 25, 403 96, F16D 112, G01D 532, G03B 710, H01J 502

Patent

active

042096928

ABSTRACT:
A mounting and positioning structure for photoelectric detector units used to generate pulses in response to rotational movement of an automatically focused camera lens. The detector is provided with an integral hollow housing supporting a photocell and a light source on an axis displaced from and parallel to the pivotal mounting axis of the detector. The housing is insertable directly under a cantilevered resilient latch member having a blade-like edge engageable with embossed serrations which radiate from the pivotal mounting axis along one surface of the detector housing. The latch retains the detector in the position so that the light path between the light source and the photocell may be calibrated precisely with a reference determinative of lens focusing position.

REFERENCES:
patent: 27797 (1860-04-01), Hammon
patent: 369159 (1887-08-01), Burns
patent: 2505075 (1950-04-01), Weinberger
patent: 3720148 (1973-03-01), Harvey
patent: 3770971 (1973-11-01), Somerset
patent: 3856399 (1974-12-01), Hosoe et al.
patent: 3875610 (1975-04-01), Wubbe
patent: 3888338 (1975-06-01), Mars
patent: 3902063 (1975-08-01), Oelsch et al.
patent: 4043642 (1977-08-01), Hirose et al.

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