Illumination – Supported by vehicle structure – Condition responsive
Patent
1988-03-18
1990-08-28
Arnold, Bruce Y.
Illumination
Supported by vehicle structure
Condition responsive
350105, 40564, 362 29, G02B 5122
Patent
active
049520237
ABSTRACT:
An internally illuminated sign employs retroreflective sheeting with optically transmissive bonds between cover layer and base layer, thereby making the sign suitable for applications where visibility of the sign is required if the internal illumination source fails. A light conduit may be employed to allow the source of internal illumination to be remote from the interior of the sign enclosure. Total internal reflection type sheeting also may be employed to diffuse the internal illumination.
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"Transflectors Take Off at U.S. Airports," Reflexite Corporation Newsletter, Spring 1988.
Bradshaw Thomas I.
Shinbach Edward S.
Arnold Bruce Y.
Ben Loha
Forrest Peter
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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