Stereoscopic image viewing apparatus
CA 1107101 A · Owner: Sony Corporation · Inventors: Watanabe, Toshiro; Watanabe, Tomikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stereoscopic image viewing apparatus utilizes the Pulfrich effect or illusion to afford to the viewer a threedimensional view of a two-dimensional or monocular image displayed on a screen and includes a polarizing plate for polarizing the light emanating from the displayed image and spectacles to be worn by the viewer, and at least one polarizing lens arranged so that the plane of its polarization is different from the plane of polarization of the polarizing plate, while the other lens is either non-polarized or has a plane of polarization substantially aligned with the plane of polarization of the polarizing plate. An arrangement may be provided for rotating the plane of polarization of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.