Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-06-12
1994-01-04
Messinger, Michael
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25023114, 250237G, G01D 534, H03M 122
Patent
active
052763234
ABSTRACT:
A movement detector includes a moving body having a slit pattern which is provided on it by forming a number of slit-shaped light transmitting parts at certain intervals in the direction of movement. As the moving body is moved, depending on the presence and absence of the light transmitting parts of the slit pattern, light images and dark images appear alternately on the light receiving surface of a semiconductor position detecting element while moving in one direction. In response to the light and dark images, the semiconductor position detecting element provides output currents, which detecting means utilizes to provide output pulses. The output pulses are utilized to detect not only the amount of movement of the moving body but also the direction of movement of the latter.
REFERENCES:
patent: 3748486 (1973-07-01), Russell
patent: 4218615 (1980-08-01), Zinn, Jr.
patent: 4654523 (1987-03-01), Tanaka et al.
patent: 4691101 (1987-09-01), Leonard
patent: 4948968 (1990-08-01), Matsui
patent: 4970511 (1990-11-01), Mills
patent: 5068530 (1991-11-01), Ieki et al.
patent: 5155355 (1992-10-01), Kabaya
Kabushiki Kaisha Tokai Rika Denki Seisakusho
Messinger Michael
LandOfFree
Optical movement detector detecting a position of an optical gra does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical movement detector detecting a position of an optical gra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical movement detector detecting a position of an optical gra will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-309760