Projection television receiver

• US 4,058,837 A
• Filed: 09/07/1976
• Issued: 11/15/1977
• Est. Priority Date: 09/07/1976
• Status: Expired due to Term

• Current Assignee: Earl W. Muntz
• Original Assignee: Earl W. Muntz
• Inventors: Muntz, Earl W.
• Primary Examiner(s): Britton, Howard W.
• Application Number:
  US05/720,681
• Time in Patent Office: 434 Days
• Field of Search: 358/250, 358/237, 358/238, 358/239
• US Class Current: 348/782
• CPC Class Codes: H04N 9/3141 Constructional details thereof details not peculiar to the presence of an electronic spatial light modulator G03B21/14

Abstract

A projection television receiver is provided in which a large size image is projected from the viewing screen of a conventional television receiver to a larger display screen. The display screen is mounted in an essentially vertical position on top of and to the rear of a cabinet. The conventional television receiver is mounted face-down within the cabinet, and an optical system is provided which projects an image from the viewing screen of the television receiver to the enlarged display screen. The optical system includes a mirror positioned in a slide. The slide is mounted in the cabinet, and it may be pulled out from the front wall of the cabinet to draw the mirror into the proper position so that the image on the viewing screen of the television receiver may be projected in an enlarged form over the entire surface of the display screen.

The projection television receiver of the present invention has a feature of being of relatively narrow width, especially when not in use, and when the slide is close.

Claims

1. Television apparatus including:

a cabinet;

a display screen mounted in an upright position on top of said cabinet adjacent to the rear side thereof;

a television receiver mounted in said cabinet having a downwardly facing viewing screen;

first reflector means mounted in said cabinet directly under the viewing screen of the television receiver in an inclined position relative to said viewing screen;

a slider mounted in the front of the cabinet and movable to an open position and to a closed position;

a projection lens mounted in said cabinet to one side of the television receiver for directing images reflected by said first reflector means from the viewing screen of the television receiver to the surface of said slider; and

a second reflector means mounted on the surface of said slider and positioned for directing the images from the viewing screen of the television receiver onto said display screen when the slider is in its open position and with a size corresponding to the size of said display screen.

2. The television apparatus defined in claim 1, in which said display screen has a curved configuration to present a concave surface to a viewer.

3. The television apparatus defined in claim 1, and which includes a shroud surrounding the display screen to protect the display screen from ambient light.