Projection RGB-laser light source with stabilized color balance
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United States of America Patent
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Sep 1, 2015
Grant Date -
Nov 20, 2014
app pub date -
May 12, 2014
filing date -
May 14, 2013
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Abstract
A laser light source includes a thermoelectric cooling device, a composite green laser made up of an infrared wavelength pumped laser diode and a solid-state laser cavity designed for efficient nonlinear intra-cavity frequency conversion into desired wavelengths using periodically poled nonlinear crystals thermally coupled with the cooling device and a red wavelength laser diode thermally coupled with said cooling device. In this manner, the cooling device maintains a common temperature of the infrared pumped laser diode and the red laser diode over an ambient temperature range.
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