05014167 is referenced by 344 patents and cites 2 patents.

A visual signaling apparatus including an enclosure having an aperture, and defining a cavity, a light source for emitting light in predetermined wavelengths borne by the enclosure and positioned in the cavity; and a semi-transparent dichroic mirror borne by the enclosure and disposed in substantially occluding relation relative to the aperture, the semi-transparent dichroic mirror adapted to selectively reflect ambient light and transmit the predetermined wavelengths of light emitted by the light source.

Title
Visual signaling apparatus
Application Number
7/482254
Publication Number
5014167
Application Date
February 20, 1990
Publication Date
May 7, 1991
Inventor
John K Roberts
Sheboygan
WI, US
Agent
Godfrey & Kahn
Assignee
K W Muth Company
WI, US
IPC
B60Q 1/00
F21V 7/22
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