Distance measuring device

Details Distance measuring device Distance measuring device

1989-12-14

1991-10-22

Adams, Jr, Russell E.

G03B 1336

Patent

active

050600044

ABSTRACT:
In a distance measuring device for measuring a distance to an object by projecting a signal light and by receiving the reflected light thereof, at least two light emitting elements are arranged for projecting the signal light; a common drive source is provided for driving the two light emitting elements; and a control circuit is arranged to prevent the two light emitting elements form simultaneously lighting up.

REFERENCES:
patent: 4582424 (1986-04-01), Kawabata
patent: 4688919 (1987-08-01), Ogawa et al.
patent: 4720723 (1988-01-01), Haronari et al.
patent: 4733062 (1988-03-01), Horikawa
patent: 4740806 (1988-04-01), Takehana
patent: 4827302 (1989-05-01), Takahashi
patent: 4878080 (1989-10-01), Takehana et al.

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