Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2005-03-07
2009-06-23
Luu, Thanh X (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140AL, C359S601000
Reexamination Certificate
active
07550703
ABSTRACT:
An automatically dimming mirror includes a dimming element having variable reflectivity, the degree of reflectivity based on a control signal. An ambient light sensor is positioned to receive light from a region generally in front of the vehicle. The ambient light sensor outputs a discrete ambient light signal based on the amount of light incident on the ambient light sensor over an integration period. A glare sensor is positioned to view the scene generally behind the vehicle operator. The glare sensor outputs a discrete glare signal based on the amount of light incident on the glare sensor over an integration period. A dimming logic determines an ambient light level based on the ambient light signal. The glare integration period is determined based on the ambient light level. The glare signal resulting from the glare integration period determines a mirror glare level used to set the dimming element control signal.
REFERENCES:
patent: 3680951 (1972-08-01), Jordan et al.
patent: 3866067 (1975-02-01), Amelio
patent: 4465370 (1984-08-01), Yuasa et al.
patent: 4469417 (1984-09-01), Masunaga et al.
patent: 4547676 (1985-10-01), Suzuki et al.
patent: 4632509 (1986-12-01), Ohmi et al.
patent: 4793690 (1988-12-01), Gahan et al.
patent: 4902108 (1990-02-01), Byker
patent: 4916307 (1990-04-01), Nishibe et al.
patent: 5140455 (1992-08-01), Varaprasad et al.
patent: 5204778 (1993-04-01), Bechtel
patent: 5214274 (1993-05-01), Yang
patent: 5214275 (1993-05-01), Freeman et al.
patent: 5220317 (1993-06-01), Lynam et al.
patent: 5235178 (1993-08-01), Hegyi
patent: 5243215 (1993-09-01), Enomoto et al.
patent: 5338691 (1994-08-01), Enomoto et al.
patent: 5386128 (1995-01-01), Fossum et al.
patent: 5410455 (1995-04-01), Hashimoto
patent: 5416318 (1995-05-01), Hegyi
patent: 5426294 (1995-06-01), Kobayashi et al.
patent: 5451822 (1995-09-01), Bechtel et al.
patent: 5471515 (1995-11-01), Fossum et al.
patent: 5488416 (1996-01-01), Kyuma
patent: 5550677 (1996-08-01), Schofield et al.
patent: 5561773 (1996-10-01), Kalish et al.
patent: 5625210 (1997-04-01), Lee et al.
patent: 5644418 (1997-07-01), Woodward
patent: 5666028 (1997-09-01), Bechtel et al.
patent: 5712685 (1998-01-01), Dumas
patent: 5715093 (1998-02-01), Schierbeek et al.
patent: 5724187 (1998-03-01), Varaprasad et al.
patent: 5760962 (1998-06-01), Schofield et al.
patent: 5789737 (1998-08-01), Street
patent: 5796094 (1998-08-01), Schofield et al.
patent: 5808350 (1998-09-01), Jack et al.
patent: 5841126 (1998-11-01), Fossum et al.
patent: 5841159 (1998-11-01), Lee et al.
patent: 5883605 (1999-03-01), Knapp
patent: 5904493 (1999-05-01), Lee et al.
patent: 6027955 (2000-02-01), Lee et al.
patent: 6037824 (2000-03-01), Takahashi
patent: 6313457 (2001-11-01), Bauer et al.
patent: 6947077 (2005-09-01), Krymski
patent: 0285724 (1987-10-01), None
patent: 0675345 (1995-03-01), None
patent: 0711683 (1995-10-01), None
patent: 0869032 (1998-04-01), None
patent: 05340816 (1993-12-01), None
patent: WO 9735743 (1997-10-01), None
Bechtel Jon H.
Fossum Eric R.
Nixon Robert H.
Stam Joseph S.
Turnbull Robert R.
Gentex Corporation
Luu Thanh X
Price Heneveld Cooper DeWitt & Litton LLP
LandOfFree
Apparatus including at least one light sensor with an input... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus including at least one light sensor with an input..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus including at least one light sensor with an input... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4094276