Pre-formed fluorescent plate - LED device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 30, 2002
app pub date -
Nov 29, 2000
filing date -
Nov 29, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An LED device has a light emitting chip covered by a pre-formed fluorescent plate for emitting white light. The light emitting chip is located in a chip holder. The pre-formed fluorescent plate is positioned above the light emitting chip and supported by the chip holder. Transparent resin is used to seal the void formed between the chip holder and the pre-formed fluorescent plate. Because the thickness and flatness of the pre-formed fluorescent plate can be easily controlled, white light emitted from the LED device has high quality as well as good uniformity.
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