Projection system having multiple screens

• US 6,056,406 A
• Filed: 07/17/1998
• Issued: 05/02/2000
• Est. Priority Date: 08/19/1997
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Jong-bae
• Primary Examiner(s): Dowling, William C.
• Application Number:
  US09/116,821
• Time in Patent Office: 655 Days
• Field of Search: 353/30, 353/94, 353/74, 353/75, 359/450, 359/449, 352/69, 352/70, 352/71
• US Class Current: 353/94
• CPC Class Codes: G03B 21/10 Projectors with built-in or built-on screen
• CPC Class Codes: G03B 37/00 Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe

Abstract

A projection system having multiple screens for image display includes at least two screens arranged to form a polygon and a multi-projector comprised of at least two sub-projector units for projecting an image to the rear side of each of the screens. Thus, since multiple screens for displaying an image are disposed in at least two directions, the image can be viewed in various directions.

Claims

1. A projection system having multiple screens for image display, comprising:

at least two screens arranged to form a polygon, with a front side of each of said screens having a substantially flat surface;

a multi-projector including at least two sub-projector units for projecting an image to a rear side of each of said screens; and

a plurality of light blocking curtains which prevent interference between images projected from each of said sub-projector units to a corresponding one of said screens and which are installed between edges of said screens and said multi-projector.

2. A projection system having multiple screens for image display, comprising:

a pair of screens arranged in different directions with respect to each other;

a multi-projector including a pair of sub-projector units for projecting an image to the rear side of each of said screens;

a plurality of light blocking curtains which prevent interference between images projected from each of said sub-projector units to a corresponding one of said screens and are installed between edges of said screens and said multi-projector; and

an external light blocking panel, installed to connect the edges of each of said screens, for cutting off external light.

3. A projection system having multiple screens for image display, comprising:

at least two screens arranged to form a polygon;

a multi-projector including at least two sub-projector units for projecting an image to a rear side of each of said screens; and

a plurality of light blocking curtains which prevent interference between images projected from each of said sub-projector units to a corresponding one of said screens and which are installed between edges of said screens and said multi-projector.