Coherent light generators – Particular component circuitry – For driving or controlling laser
Reexamination Certificate
2007-07-27
2010-10-26
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular component circuitry
For driving or controlling laser
C372S038010, C372S038070, C372S029010, C372S029015, C372S029020, C372S034000
Reexamination Certificate
active
07822086
ABSTRACT:
The temperature of a laser diode changes in response to video content across a line of a displayed image, and the radiance changes as a function of temperature. An adaptive model estimates the temperature of the laser diode based on prior drive current values. For each displayed pixel, diode drive current is determined from the estimated diode temperature and a desired radiance value. A feedback circuit periodically measures the actual temperature and updates the adaptive model.
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Brown Margaret K.
Schaaf Michael L.
Sprague Randall B.
Xue Bin
Fordé Delma R
Harvey Minsun
Microvision Inc.
Wills Kevin D.
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