Method and device for optical distance measurement

Details Method and device for optical distance measurement Method and device for optical distance measurement

2008-01-01

2008-01-01

Alsomiri, Isam (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S005150

Reexamination Certificate

active

10897055

ABSTRACT:
A method and a device for optically measuring a distance by emitting an amplitude modulated and bundled optical signal and by receiving the signal reflected from a target object. The modulation frequency is continuously regulated by means of a regulating loop in such a manner that between the emitted and the received signal a fixed phase difference prevails that is independent of the distance. For reducing the circuitry required for a distance evaluation circuit, while maintaining a high accuracy and for increasing the attainable regulation speed, the detection of the phase difference occurs with a phase comparator.

REFERENCES:
patent: 3202988 (1965-08-01), Fombonne
patent: 3246322 (1966-04-01), Kuecken
patent: 3343157 (1967-09-01), Charton et al.
patent: 3730628 (1973-05-01), Wolcott et al.
patent: 4107684 (1978-08-01), Watson, Jr.
patent: 4170023 (1979-10-01), Yamakoshi et al.
patent: 4370653 (1983-01-01), Crowley
patent: 4374438 (1983-02-01), Crowley
patent: 4562403 (1985-12-01), Donovan
patent: 5771255 (1998-06-01), Horiuchi et al.
patent: 6058318 (2000-05-01), Kobayakawa et al.
patent: 1 152 259 (2001-11-01), None
U. Tietze, Ch. Schenk: “Halbleiter-Schaltungstechnik” 1993, Springer-Verlag, Berlin, pp. 959-961.

Affiliated with

Also associated with

Rating

Method and device for optical distance measurement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for optical distance measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for optical distance measurement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3918376