Optics: measuring and testing – Range or remote distance finding – With photodetection
Reexamination Certificate
2007-05-22
2007-05-22
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Range or remote distance finding
With photodetection
C356S004010, C356S028000
Reexamination Certificate
active
10641850
ABSTRACT:
A method and device for measuring a distance to an object with light determines the distance by measuring the relative intensity of light reflected from the object and traveling over two or more paths of differing optical length. Light is emitted by one or more light sources; reflected from a surface of the object; and the reflected light is detected by one or more light detectors. The light detector(s) generate signals based on the intensity of reflected light detected and the signals are utilized to calculate the distance from the device to the object.
REFERENCES:
patent: 4716430 (1987-12-01), Stauffer
patent: 4752799 (1988-06-01), Stauffer
patent: 4988981 (1991-01-01), Zimmerman et al.
patent: 5149952 (1992-09-01), Tanaka et al.
patent: 5229829 (1993-07-01), Nihei et al.
patent: 5532813 (1996-07-01), Ohishi et al.
patent: 5541723 (1996-07-01), Tanaka
patent: 5682229 (1997-10-01), Wangler
patent: 5686942 (1997-11-01), Ball
patent: 5701006 (1997-12-01), Schaefer
patent: 5865443 (1999-02-01), Abe
patent: 5963309 (1999-10-01), Nakanishi et al.
patent: 6172375 (2001-01-01), Kindaichi
patent: 6198470 (2001-03-01), Agam et al.
Foley, James D.; Chapter 16 Shading Models “Fundamentals of Interactive Computer Graphics” Copyright 1982; pp. 575-580; Addison-Wesley Publishing Company, Inc.
Alsomiri Isam
Lister John D.
Tarcza Thomas H.
LandOfFree
Method and apparatus for measuring distances using light 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 apparatus for measuring distances using light, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring distances using light will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3769565