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:
May. 24, 1983
Filed:
Feb. 27, 1981
Robert E Slater, Vernon Hills, IL (US);
Meyer L Sugarman, Northbrook, IL (US);
Zenith Radio Corporation, Glenview, IL (US);
Abstract
Unitary optical assembly means is disclosed for use in an ultra-compact projection television receiver. The unitary optical assembly means is selectively storable in the receiver cabinet and elevatable therefrom by precision elevating means. The receiver includes a stationary optical assembly means permanently enclosed in the lower portion of the cabinet for forming a television image and projecting, when the unitary optical assembly is elevated an aerial image of the television image upwardly a predetermined image projection distance along an optical path folded by optical path folding means. The unitary optical assembly comprises in combination mirror means arranged at a predetermined angle effective to receive the aerial image and reflect the image forwardly. The unitary optical assembly also comprises rear projection screen means located at the terminus of the optical path and vertically arranged for receiving said aerial image reflected by the mirror means for displaying the image. A rigid, box-like shroud means provides for mounting the mirror at a predetermined angle and in a predetermined fixed relationship to the screen. The unitary optical assembly according to the invention provides for maintaining the mirror and the screen in predetermined fixed relationship one with the other, and when said unitary optical assembly is elevated, the assembly provides for establishing and maintaining the mirror and the screen in predetermined fixed relationship with the stationary optical assembly means.