Distance measuring device

Details Distance measuring device Distance measuring device

1993-12-20

1996-04-30

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

Triangulation ranging to a point with one projected beam

354403, 356 308, G01C 300, G01C 500, G03B 300

Patent

active

055129978

ABSTRACT:
A distance measuring device has an infrared light-emitting diode by which an infrared light is emitted towards a subject, and first and second linear line sensors on which an image corresponding to light reflected from the subject is formed. The first and second linear line sensors are disposed adjacently and in parallel to each other, and offset by an amount corresponding to half of the predetermined A/D converting step. Analog distance data outputted from the linear line sensors are converted to digital distance data using the predetermined A/D converting step, and then, the digital distance data are added together to obtain a subject distance with a high accuracy.

REFERENCES:
patent: 4320302 (1982-03-01), Stein
patent: 4968146 (1990-11-01), Heizmann et al.
patent: 5001508 (1991-03-01), Ogawa
patent: 5361117 (1994-11-01), Nonaka

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