US 4,231,067 AGranted

Television image projection apparatus

AssigneeViewpoint Corporation

InventorsHenry J. Jewell, Richard L. Meyer

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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.

Claims16

Dependent claims

A unit for supporting a television receiver housing and projecting an image from the face of a CRT thereof to a remote, reflective viewing screen, said unit comprising:

(a) a base having a top wall upon which said CRT is placed defining a planar support surface with front, rear and side edges, said front and rear edges being horizontally disposed and said side edges being inclined upwardly from said rear to said front edge;
(b) a stop member having a forward edge parallel to said front edge and adjustably positionable with respect thereto;
(c) a projection lens mounted in a unitary lens barrel;
(d) a hollow hood having a first end defining a first opening at least as large as the face of the CRT of the receiver supported by said unit, and a second end defining a second opening of substantially the same dimensions as said lens barrel and adapted to frictionally engage said lens barrel for adjustable positioning thereof along the optical axis of said lens, said hood defining an enclosed path between said first and second openings;
and
(e) means for attaching said hood to said base with said first opening arranged adjacent to and above said front edge, said attaching means including means extending below the bottom edge of said first opening for adjustably positioning said hood in a direction substantially perpendicular to said support surface.

3 more elements

Dependencies are inferred from the claim text.