Projection-type display devices with reduced weight and size
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United States of America Patent
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Mar 29, 2011
Grant Date -
N/A
app pub date -
Dec 29, 2008
filing date -
Jul 16, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Described herein are display devices that provide projection-type video output and use diode lasers to generate light. For example, one set of diode lasers may produce red light, while a second set produces blue light. Optics are employed to expand laser light from its small generated or transmitted flux area to a size suitable for transmission onto the optical modulation device. Another aspect of the invention relates to a redundant laser set to generate light. A redundant laser set includes more lasers than that needed to produce the desired amount of light.
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