ADJUSTABLE LIGHT SOURCE
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United States of America Patent
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Issued Date -
Sep 20, 2012
app pub date -
Mar 15, 2012
filing date -
Mar 17, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A light source includes a light emitting device that emits light, and a spectrum adjuster that is positionable relative a light path of the light emitted by the light emitting device. The spectrum adjuster includes a region of continuously-variable spectrum adjusting material, usable for adjusting the spectrum of light passing through the spectrum adjuster. The variable spectrum adjusting material may be color-attenuating material, such as a filtering material, or may be wavelength-shifting material, such as a phosphor. The light source has adjustable spectrum of its output light depending upon the relative positioning of the light emitting device and the spectrum adjuster.
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