2028461 is referenced by 39 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
Dispositif de signalisation visuelle
Visual signaling apparatus
Publication Number
2028461
Application Date
October 23, 1990
Publication Date
November 8, 1994
Inventor
Roberts John K
Agent
GOWLING LAFLEUR HENDERSON
Assignee
Kw Muth Company
IPC
F21V 09/00
B60R 01/12
B60R 01/08
B60Q 01/26
B60Q 01/44
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