The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1991
Filed:
Aug. 23, 1989
Hajime Sudo, Matsudo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A stereoscopic television system has first and second openings through which light rays reflected from an object to be viewed enter. The system includes a first polarizer polarizing the light rays passing through the first opening and a second polarizer polarizing light rays passing through the second opening. The polarization planes of the first and second polarizers are different from each other. Optics are provided for aligning the center axes of the light rays passing through the first and second openings to generate aligned light rays. A polarizer switch receives the aligned light rays and selectively and alternately passes light rays polarized by one of the first and second polarizers. A zoom lens is provided for optically treating the aligned light rays for zoom operation. A video camera converts optical images of the light rays passing through the polarizer switch and the zoom lens into electrical signals corresponding to the light rays passing through the first and second openings. A television system then displays an image of the object, based on the electrical signals.