Scanned beam overlay projection

Details Scanned beam overlay projection Scanned beam overlay projection

2011-06-07

2011-06-07

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Projected image combined with real object

C359S385000, C250S559060

Reexamination Certificate

active

07954953

ABSTRACT:
A scanning beam overlay projection system displays an image on a projection surface by scanning a light beam in a raster pattern. Reflective spots on the projection surface reflect light back to the projection system when illuminated by the light beam. A photodetector in the projection system detects the reflected light, and timing circuits determine where in the raster pattern the reflective spots are located. The image can be scaled and warped to correlate tagged points within the image with the locations of the reflective spots on the projection surface.

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PCT Search Report, , “PCT Search Report and Written Opinion”, PCT/US2009/049544,search report for PCT case corresponding to US caseFeb. 2, 2010.

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