05361190 is referenced by 327 patents and cites 37 patents.

A mirror assembly is disclosed which includes a dichroic mirror which allows a predetermined narrow spectral band to pass through the mirror and be seen from a position forward of the mirror, and which further reflects a broad spectral band of light which originates from a direction forward of the mirror; a light source is positioned rearwardly of the mirror and emits light in the predetermined narrow spectral band passed by the dichroic mirror; and an electronic circuit is provided which is operable to step up, or step down the voltage supplied to the light source thereby maintaining a constant voltage source which is utilized to energize the light source.

Title
Mirror assembly
Application Number
482254
Publication Number
5361190
Application Date
December 2, 1992
Publication Date
November 1, 1994
Inventor
Keith R Spencer
Sheboygan
WI, US
John K Roberts
Sheboygan
WI, US
Agent
Godfrey & Kahn
Assignee
K W Muth Co
WI, US
IPC
F21V 9/00
F21V 3/04
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