Computer graphics processing and selective visual display system – Plural physical display element control system – Optical means interposed in viewing path
Reexamination Certificate
2005-12-20
2005-12-20
Liang, Regina (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Optical means interposed in viewing path
C345S007000, C359S630000
Reexamination Certificate
active
06977631
ABSTRACT:
Apparent distance of a pixel within an optical field of view is determined. Incoming light is scanned along a raster pattern to direct light for a select pixel onto a light distance detector. The distance is sampled for each pixel or for a group of pixels. The light distance detector includes a concentric set of rings sensors. The larger the spot of light corresponding to the pixel, the more rings are impinged. The diameter of the spot is proportional to the distance at which the light originated (e.g., light source or object from which light was reflected). Alternatively, a variable focus lens (VFL) adjusts focal length for a given pixel to achieve a standard spot size. The distance at which the light originated correlates to the focal length of the VFL.
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Johnston Richard S.
Kollin Joel S.
Melville Charles D.
Tidwell Michael
Koda Steven P.
Liang Regina
Nguyen Jennifer T.
University of Washington
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