Television image projection apparatus
US4231067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1978 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Oct 30, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for supporting a television receiver housing and projecting an image from the face of the picture tube to a remote, reflective screen having dimensions significantly larger than the picture tube. The apparatus includes a base providing an inclined support surface for the TV housing with an adjustable stop member for engagement with the lower, rear edge of the housing to establish the fore and aft position thereof on the support surface. The apparatus further includes a hood defining an enclosed path between an opening at one end for encircling the face of the picture tube of a TV supported on the base, and an opening at the opposite end in which the lens barrel of the projection lens system is frictionally engaged for unitary focusing movement. The TV set and the lens remain physically unattached to any elements of the projection system. The invention is also directed to novel features of the hood, per se.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.