Arrangement for and method of projecting an image with pixel...

Details Arrangement for and method of projecting an image with pixel... Arrangement for and method of projecting an image with pixel...

2008-04-01

2008-04-01

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S199200, C359S201100, C359S202100, C359S204200, C359S900000, C348S744000

Reexamination Certificate

active

11447583

ABSTRACT:
A laser beam is swept by a scan mirror as a pattern of scan lines on a projection surface. The scan mirror moves at a variable speed along each scan line. Each scan line has a number of pixels. The pixels have time durations proportional to the variable speed of the scan mirror. A profile memory stores the time durations of the pixels. A controller causes selected pixels arranged along each scan line to be illuminated for the time durations stored by the profile memory to produce an image of uniform brightness and of uniformly sized pixels and in color.

REFERENCES:
patent: 5777608 (1998-07-01), Lipovski et al.
patent: 7130095 (2006-10-01), Wood

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