Television – Video display – Projection device
Patent
1997-08-14
2000-07-18
Peng, John K.
Television
Video display
Projection device
348745, 348195, 348203, 348756, 348757, 348760, 359201, 359202, H04N 564, H04N 310, H04N 574
Patent
active
060914610
ABSTRACT:
A projection display device wherein a modulated laser beam is scanned across a viewing surface by a system of rotating mirrors. A correcting mirror is provided for introducing small variations in the path of the beam. An instantaneous position of the beam on the viewing surface is monitored and a deviation between the actual pattern traversed by the beam and a predetermined scanning pattern is detected. The angular position of the correcting mirror is adjusted to reduce the deviation between the actual scanning pattern and the predetermined scanning pattern.
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Lo Linus H.
Maioli Jay H.
Peng John K.
Sony Corporation
Sony Corporation of America
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