Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-08-29
2006-08-29
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S222100, C340S555000
Reexamination Certificate
active
07098441
ABSTRACT:
Light emitted from light-projecting elements constituted by LEDs (light-emitting diodes) or the like is transmitted to a light-projecting optical system of a sensor head portion through an optical fiber cable and projected from the light-projecting optical system onto an object. The light projected onto the object is reflected on the object. The reflected light is made incident on a light-receiving optical system. The light incident on the light-receiving optical system is led to a light-receiving element. The light-receiving element detects the incident light and generates a light-receiving signal based on the quantity of the detected light. The light-receiving signal generated by the light-receiving element is transmitted to a signal processing control portion of a main body portion through a light-receiving circuit and an electric wire cable.
REFERENCES:
patent: 4789778 (1988-12-01), Layh
patent: 5237171 (1993-08-01), Liva et al.
patent: 5270541 (1993-12-01), Matuzaki
patent: 5281810 (1994-01-01), Fooks et al.
patent: 5790259 (1998-08-01), Mizuhata et al.
patent: 5808296 (1998-09-01), McMonagle et al.
patent: 6094272 (2000-07-01), Okamoto
patent: 6124936 (2000-09-01), Okamoto
patent: 6211784 (2001-04-01), Nishide
patent: 6323481 (2001-11-01), Ueki
patent: 6392214 (2002-05-01), Okamoto
patent: 6455829 (2002-09-01), Fukumura
patent: 6717515 (2004-04-01), Osako et al.
patent: 6770864 (2004-08-01), Yan
patent: 2002/0130822 (2002-09-01), Fukumura
patent: 2004/0134424 (2004-07-01), Dobrowolski
patent: 9-229764 (1997-09-01), None
patent: 11-330940 (1999-11-01), None
patent: 2002-270889 (2002-09-01), None
patent: WO 02 086515 (2002-10-01), None
Asada Shinya
Tsukigi Shinichi
Yamaguchi Akiji
Allen Stephone B.
Keyence Corporation
Monbleau Davienne
Smith Patent Office
LandOfFree
Photoelectric sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photoelectric sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoelectric sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3696871