04886960 is referenced by 360 patents and cites 17 patents.

The invention provides an automatic rearview mirror system (10) for a vehicle comprising a reflective element (22) actuatable between at least two different reflective conditions. The system includes a forward light sensor (11) to detect light forward of the vehicle and a rear light sensor (12) to detect light rearward of the mirror. A control circuit means (14,16) is coupled to the reflective element (22), the forward light sensor (11) and the rear light sensor (12). The control circuit causes the reflective element to assume a reflective state dependent upon the output of the forward and rear light sensors. The control circuit includes means for modifying the output of the forward light sensor (11) to cause a reduction in the sensitivity of the mirror.

Title
Control circuit for an automatic rearview mirror
Application Number
7/177614
Publication Number
4886960
Application Date
April 5, 1988
Publication Date
December 12, 1989
Inventor
Thomas D Gaffney
Bray
IE
Keith W Molyneux
Ballymore Eustace
IE
Agent
Price Heneveld Cooper DeWitt & Litton
Assignee
Donnelly Mirrors
IE
IPC
H01J 40/14
View Original Source