Photoelectric distance sensor

Details Photoelectric distance sensor Photoelectric distance sensor

1993-12-22

1996-03-19

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

Triangulation ranging to a point with one projected beam

354403, 356 401, G01C 300, G03B 300

Patent

active

055007287

ABSTRACT:
The photoelectric distance sensor for sensing a distance to a sense object by irradiating light to the sense object, the photoelectric distance sensor comprises a light-irradiating section 3 for irradiating light to a sense object 6, a light-receiving section for receiving the reflected light from the sense object 6, an operating section for outputting the distance to the sense object 6 and the target value of received light amount fitted to the distance on the signal of the light-receiving section 4, and a light-irradiation-controlling section 17 for controlling a light irradiation amount on the target value of received light amount, and the photoelectric sensor is for controlling the light irradiation amount in order that the received light amount becomes the most fitted value according to the distance, and further the photoelectric sensor can enlarge the light irradiation amount according to the distance in near distances and can make measurement precision be improved.

REFERENCES:
patent: 3679307 (1972-07-01), Zoot et al.
patent: 5157435 (1992-10-01), Min et al.
patent: 5337116 (1994-08-01), Nonaka et al.

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