Cathodoluminescent phosphor lamp having extraction and diffusing grids and base for attachment to standard lighting fixtures
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United States of America Patent
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Nov 13, 2012
Grant Date -
Mar 8, 2012
app pub date -
Nov 14, 2011
filing date -
Feb 5, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light emitting device has a cathode-ray tube and power supply. The cathode-ray tube in an embodiment is optimized for emitting a broad electron beam, in one variation a dome-shaped diffusing grid is used to spread the beam. In another embodiment, the device has a base adapted for attachment to a standard lighting fixture.
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