Fail-safe illuminated display comprising multimodal illumination components
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United States of America Patent
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-
Apr 2, 2002
Grant Date -
N/A
app pub date -
Dec 22, 1999
filing date -
Dec 22, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An illuminated display that is susceptible to interruption or termination of active lighting capability and provides passive lighting capability in such circumstances. The illuminated display features an active illumination source providing active lighting capability and a display member (i) arranged in light-receiving relationship to the active illumination source and (ii) containing photoluminescent pigment incorporated therein in sufficient amount and distribution to illuminate the display during the interruption or termination of active lighting capability, to provide passive lighting capability. The illuminated display may further include a fluorescent pigment arranged in photoluminescent light-receiving relationship to the display member containing the photoluminescent pigment, whereby the fluorescent pigment down-converts photoluminescent light from the display member during the interruption or termination of active lighting capability.
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Cited Art Landscape
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