Photoelectric conversion method and apparatus thereof

Details Photoelectric conversion method and apparatus thereof Photoelectric conversion method and apparatus thereof

1993-10-28

1995-11-28

Gross, Anita Pellman

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

2502082, 2502016, 356 401, H01J 4014, G01J 120

Patent

active

054710502

ABSTRACT:
In the photoelectric conversion method and apparatus applicable to displacement sensors irradiating light to objects and sensing the distances to the objects, distance-determining type photoelectric sensors etc., the method and apparatus arrange n (n>2) light-receiving elements in a predetermined direction, and divide each photoelectric current I1, I2, . . . , In of each light-receiving element in predetermined ratios k1 to 1-k1, k2 to 1-k2, . . . , kn to 1-kn; and lead the divided photoelectric currents to the first and the second photoelectric current output terminal, and control the predetermined ratios k1, k2, . . . , kn in keeping such relationships as k1>0.5>kn and km.ltoreq.kp (p=m-1; m=2 to n), therefore the arbitrary positions on the light-receiving surface can be set in high sensibility, and high speed responsibility can be attained.

REFERENCES:
patent: 4339665 (1982-07-01), Utagawa
patent: 4523101 (1985-06-01), Tsunekawa

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