Optical: systems and elements – Glare or unwanted light reduction – With mirror
Reexamination Certificate
2008-01-22
2008-01-22
Nguyen, Thong Q (Department: 2872)
Optical: systems and elements
Glare or unwanted light reduction
With mirror
C359S603000, C359S601000
Reexamination Certificate
active
10569004
ABSTRACT:
A rearview mirror reflects ambient light and dims when light from headlights of a following motor vehicle is detected. Electrochromic mirror glass is fixedly secured to a frame within an opening. A sensor is fixedly secured to a housing for sensing ambient light and focused or glare light directed toward the rearview mirror. A light guide is disposed between the housing and the sensor for directing the ambient light and glare light outside the housing toward the sensor. The rearview mirror also includes a switching device for periodically disrupting the transmission of the light to identify a presence of the glare light, such that the sensor creates a dimming signal upon the identification of the presence of the glare light to dim the electrochromic mirror glass. The use of the switching device minimizes the number of sensors required by using the same sensor for measuring ambient light and glare light.
REFERENCES:
patent: 4505539 (1985-03-01), Auracher et al.
patent: 4603946 (1986-08-01), Kato et al.
patent: 5148014 (1992-09-01), Lynam et al.
patent: 6359274 (2002-03-01), Nixon et al.
patent: 7008090 (2006-03-01), Blank
patent: 2002/0171954 (2002-11-01), Bonardi et al.
patent: 2003/0043589 (2003-03-01), Blank
patent: 705 734 (1995-04-01), None
patent: 0785103 (1997-07-01), None
patent: WO 0055011 (2000-09-01), None
Thiel Rolf
Zipf Volker
Nguyen Thong Q
Reising Ethington Barnes Kisselle P.C.
Schefenacker Vision Systems Germany GmbH
LandOfFree
Rear-view mirror for vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rear-view mirror for vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rear-view mirror for vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3954897