Stereographics Corporation

Reald Inc.

Bruce Dorworth

Lenny G Lipton

Jeffrey James Halnon

Robert Akka

William James McKee, Jr

Jeff Wuopio

An alternating unipolar carrier waveform is used to drive a pi-cell modulator. The pi-cell is driven by the carrier, but the carrier never changes polarity within the time period that the cell is energized. However, each time the cell is energized, i.e., once per field, the polarity alternates. Further, a burst of pulses each separated by a short rest period is used on initial application of power to more quickly drive the pi-cell to its activated state.

Method for eliminating pi-cell artifacts

A neutralizing sheet for an autostereoscopic image viewing system. The image viewing system includes a lenticular sheet covering a display screen. The neutralizing sheet including a pliable portion and is movable between a first position and a second position. The pliable portion has a refractive index similar to the lenticular sheet. When pressed into the lenticular sheet to define the first position, the pliable portion deforms to assume the shape of the lenticular sheet. Thus, refraction through the lenticular sheet is neutralized and viewing of planar images is enabled. In the second position, the neutralizing sheet is separated from the lenticular sheet and viewing of stereoscopic images is enabled.

Neutralizing device for autostereoscopic lens sheet

A parallax panoramagram has increased depth and sharpness when a sharpness filter is applied after interdigitation of multiple image portions. An optical path of wave train () (on-axis) and wave train () (off-axis) intersect a single lenticle (). The lenticle has a focal length () and the on-axis () and off-axis () wave trains correspond to different stripes. These wave trains (and) comme to focus at points (and) respectively. The surface () has a cylindrical curvature, and bracket () denotes the width of the lenticle (). Each eye of the observer sees its own perspective view when looking at a lenticular stereogram.

Parallax panoramagram having improved depth and sharpness

An electronic stereoscope displays field-sequential stereoscopic images on a display screen at a predetermined field rate. The images are viewed through left and right electro-optical shutters driven out of phase with each other and synchronously with the field rate. Left and right lenses are also provided in correspondence with the left and right shutters to accommodate and converge the user's eyes on the display screen.

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Vacaville, CA, United States of America

Bruce Dorworth