Phase retardance autostereoscopic display

Details Phase retardance autostereoscopic display Phase retardance autostereoscopic display

2007-01-30

2007-01-30

Koval, Melissa J. (Department: 2851)

Optics: image projectors

Stereoscopic

C353S010000, C353S121000, C359S462000

Reexamination Certificate

active

10832701

ABSTRACT:
An apparatus for viewing an image includes a screen on which an image of a superimposed projection for left and right eye views of a viewer is displayed image. The apparatus includes a mechanism for projecting the projections onto the screen image. The apparatus includes a rear retarder disposed in front of the screen image. The apparatus includes a front retarder disposed in front of the rear retarder image. The apparatus includes a mechanism for applying an increasing ramp of phase retardance across an image in the rear retarder, and applying a decreasing ramp of phase retardance across the image in the front retarder so a constant phase retardance is created across an entire surface of the screen disposed behind the rear retarder and the front retarder when seen by a viewer in front of the front retarder. An apparatus for viewing an image includes a display mechanism which produces a display such that there is a first point and a second point in space whereby the sum of phase is zero for the first point and 0+180 degrees for the second point.

REFERENCES:
patent: 5583795 (1996-12-01), Smyth
patent: 5822117 (1998-10-01), Kleinberger et al.
patent: 5973831 (1999-10-01), Kleinberger et al.
patent: 6061084 (2000-05-01), Perlin
patent: 6252707 (2001-06-01), Kleinberger et al.
patent: 2003/0209893 (2003-11-01), Breed et al.

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