Distance measuring apparatus

Details Distance measuring apparatus Distance measuring apparatus

1986-12-18

1988-07-26

Adams, Russell E.

Optics: motion pictures

Removable film strip magazine type

352140, 356 1, G03B 300

Patent

active

047604190

ABSTRACT:
A distance measuring apparatus which emits light toward an object, receiving light reflected by the object, and measuring the distance of the object. This apparatus includes receiving means for receiving the reflected light, and the receiving means has at least two receiving areas. According to a disclosed technique, a mean value of photoelectric outputs from the respective receiving areas is calculated, and the distance of the object is measured on the basis of the difference between the mean value and the photoelectric output from either of the receiving areas. According to another disclosed technique, stabilization is provided with respect to amplifier means for amplifying the photoelectric outputs from the receiving means and integrating means.

REFERENCES:
patent: 4429967 (1984-02-01), Tokuda et al.
patent: 4527892 (1985-07-01), Yamane et al.
patent: 4542971 (1985-09-01), Numata
patent: 4573783 (1986-03-01), Maruyama
patent: 4621917 (1986-11-01), Kaneda
patent: 4623237 (1986-11-01), Kaneda et al.
patent: 4652107 (1987-03-01), Tamura

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