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:
Oct. 24, 1978
Filed:
Oct. 06, 1976
Sing Liong Tan, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A three-dimensional, black-white or color television display device which is compatible for two-dimensional television. Located in front of the screen of a direct-view display tube is a removable strip or dot filter having alternatingly light-reflecting and light-dispersing strips or dots and light-transmissive, polarizing or light-selecting strips or areas. The display device is provided with a projection display tube which gives with three-dimensional display an image on the strip or dot filter via a polarizer or light-selecting filter. By means of spectacles having polarized glasses or light-selecting glasses an observer can observe a three-dimensional image.