Optical: systems and elements – Stereoscopic
Reexamination Certificate
2007-06-19
2007-06-19
Dunn, Drew A. (Department: 2872)
Optical: systems and elements
Stereoscopic
Reexamination Certificate
active
10268982
ABSTRACT:
The invention provides a stereoscopic display to display a high-quality three-dimensional video which can be viewed without using polarizing glasses. A stereoscopic display according to the present invention includes an electronically-formed, multi-viewpoint light beam group and an image-forming device to reproduce a conjugate image of the multi-viewpoint light beams. The stereoscopic display further includes a cylindrical, or partially cylindrical parallax barrier and a rotating light-emitting array as a multi-viewpoint-light-beam forming device. In addition, the stereoscopic display further includes a polarizing element and a polarization separation device to increase the display contrast. The numerical aperture of the rearmost optical element is preferably increased in order to increase the viewing area, and a reflective optical element with a large aperture is used as the image-forming device. The light-emitting array is formed of lightweight, thin-film light-emitting elements with which electronic rotational scanning is possible.
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Dunn Drew A.
Oliff & Berridge PLC.
Pritchett Joshua L.
Seiko Epson Corporation
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