High intensity white light source
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United States of America Patent
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Apr 23, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jan 12, 2016
filing date -
Jan 27, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A white light source (100) comprising a first light source (102) adapted to emit first light, a reflecting wavelength converting element (108) arranged to receive first light from the first light source (102) and at least partly convert it to converted light, and a second light source (104) adapted to emit blue light which in use combines with the converted light to generate white light. The white light source further comprises a beam shaping element (116) adapted to adjust the intensity profile of the blue light emitted by the second light source (104) to match the intensity profile of the converted light. Thereby, a white light source (104) which generates a high intensity uniform white light with a desired color distribution is provided.
First Claim
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International Classification(s)
- F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
- H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....
- F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- F21K:LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G03B:APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS O....
- F21S:NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
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