04277804 is referenced by 351 patents and cites 5 patents.

An undistorted view of regions rearward of a vehicle such as a tractor-trailer is provided by a closed circuit television system wherein a television camera having a wide angle viewing capability is positioned at the rear of the vehicle at an effective viewing elevation between about 20% and 70% of the total height of the vehicle. The camera is protected against debilitating factors by a protective enclosure which occupies minimal space and affords secure attachment to said vehicle by virtue of a mounting wherein the axis of said camera lens is horizontally disposed in a plane perpendicular to the longitudinal axis of said vehicle. A mirror associated with said camera lens at a 45 degree angle thereto serves the two-fold purpose of permitting the desired mode of mounting of said enclosure, and reversing the image presented to said camera.

The camera is connected by means of electrical wires to a television receiver positioned within easy view of the driver of the vehicle.

Title
System for viewing the area rearwardly of a vehicle
Application Number
956695
Publication Number
4277804
Application Date
January 31, 1980
Publication Date
July 7, 1981
Inventor
Elburn Robison
P.O. Box 788, Shawnee, 74801
OK, US
Agent
Norman B Rainer
IPC
H04N 7/18
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