Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1997-06-23
1998-11-03
Tarcza, Thomas H.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 501, 356 51, 3561411, 340942, 180169, G01C 308, G08G 104
Patent
active
058317171
ABSTRACT:
An obstacle detecting apparatus for ensuring that the transmitted light power is sufficient to detect an obstacle at a long distance, but yet not be harmful to human eyes. The apparatus comprises a light transmitting device for transmitting a pulsed light in a plurality of angular directions, and a light receiving device for receiving the light reflected from an object. The distance to the object is based on the time difference between transmission of the light and reception of the reflected light, and the power of the transmitted light is controlled in each angular direction such that reception intensity of the reflected light in every angular direction can be within a predetermined range.
REFERENCES:
patent: 3749197 (1973-07-01), Deutsch
patent: 3781111 (1973-12-01), Fletcher et al.
patent: 4039782 (1977-08-01), Burckhardt et al.
patent: 4716298 (1987-12-01), Etoh
patent: 4948246 (1990-08-01), Shigematsu
patent: 5091726 (1992-02-01), Shyu
patent: 5283622 (1994-02-01), Ueno et al.
patent: 5314037 (1994-05-01), Shaw et al.
patent: 5477461 (1995-12-01), Waffler et al.
patent: 5530651 (1996-06-01), Uemura et al.
patent: 5552893 (1996-09-01), Akasu
Laufer Pinemus M.
Mitsubishi Denki & Kabushiki Kaisha
Tarcza Thomas H.
LandOfFree
Obstacle detecting apparatus which employs a laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Obstacle detecting apparatus which employs a laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Obstacle detecting apparatus which employs a laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-695731