Image presentation device with light source controller
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United States of America Patent
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May 27, 2008
Grant Date -
Dec 7, 2006
app pub date -
Jun 1, 2005
filing date -
Jun 1, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An image presentation device (100) includes a set of color light sources (122, 124, 126) and a micro-display panel (150) capable of operating in both image processing and non-image processing modes. A sensor (170) is coupled to the micro-display device (150) to convert light received from the light source (122, 124, 126) into a signal value representing the output from the light source (122, 124, 126). A controller (110), responsive to the signal value, selectively and/or collectively varies the input to each of the individual light sources (122, 124, 125) to provide for consistent operating performance over the life of the product.
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