Multi-projection system

• US 8,714,746 B2
• Filed: 11/02/2012
• Issued: 05/06/2014
• Est. Priority Date: 07/12/2012
• Status: Active Grant

• Current Assignee: CJ 4dplex Company Limited (CJ CGV Co., Ltd.)
• Original Assignee: CJ CGV Co., Ltd.
• Inventors: Choi, Yoo Hwan, Seong, In Jae, Kim, Hwan Chul, Kang, Su Ryeon
• Primary Examiner(s): Dowling, William C
• Assistant Examiner(s): HOWARD, RYAN D
• Application Number:
  US13/667,364
• Publication Number:
  US 20140016099A1
• Time in Patent Office: 550 Days
• Field of Search: 353/30, 353/31, 353/7, 353/121, 353/122, 353/94, 352/69, 352/70, 434/44
• US Class Current: 353/30
• CPC Class Codes: A47C 1/12 Theatre, auditorium, or similar chairs seats detachably mounted on stadium benches A47C1/16
• CPC Class Codes: A47C 3/18 Chairs or stools with rotatable seat adjustable in height by rotation A47C3/24
• CPC Class Codes: A63J 2005/002 moving the spectator's body
• CPC Class Codes: A63J 25/00 Equipment specially adapted for cinemas cinematographic projection means G03B
• CPC Class Codes: E04H 3/22 Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
• CPC Class Codes: G02B 30/50 the image being built up from image elements distributed over a 3D volume, e.g. voxels
• CPC Class Codes: G03B 21/003 Cine-projectors
• CPC Class Codes: G03B 21/14 Details
• CPC Class Codes: G03B 21/16 Cooling; Preventing overheating
• CPC Class Codes: G03B 21/2053 Intensity control of illuminating light controlled by video signal processing H04N5/74 or H04N9/31
• CPC Class Codes: G03B 21/206 Control of light source other than position or intensity
• CPC Class Codes: G03B 21/26 Projecting separately subsidiary matter simultaneously with main image
• CPC Class Codes: G03B 21/56 Projection screens
• CPC Class Codes: G03B 21/60 characterised by the nature of the surface
• CPC Class Codes: G03B 21/608 Fluid screens
• CPC Class Codes: G03B 29/00 Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects combinations with flash apparatus G03B15/03
• CPC Class Codes: G03B 31/00 Associated working of cameras or projectors with sound-recording or sound-reproducing means
• CPC Class Codes: G03B 37/04 with cameras or projectors providing touching or overlapping fields of view
• CPC Class Codes: G03B 41/00 Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/4316 : for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/47 : End-user applications
• CPC Class Codes: H04N 9/3147 : Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026
• CPC Class Codes: H04N 9/3182 : Colour adjustment, e.g. white balance, shading or gamut white balance per se H04N9/73; control of amplitude of colour signals H04N9/68; colour control circuits for displays in general G09G5/02, G09G3/2003, G09G3/3607
• CPC Class Codes: H04N 9/3185 : Geometric adjustment, e.g. keystone or convergence optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14
• CPC Class Codes: H04N 9/3194 : including sensor feedback

Abstract

A multi-projection system having a plurality of projection surfaces onto which images are projected is provided, where the plurality of projection surfaces are disposed on two or more sides not parallel to each other. The multi-projection system provides high three-dimensional images and a high degree of immersion in images and further provides multi-view images, thereby making theater customers feel like they really exist in the space described through the images.

Claims

1. A multi-projection system, comprising:

a plurality of projectors for projecting images onto a plurality of projection surfaces, wherein at least some of the projection surfaces are not parallel to each other,

wherein the projection surfaces are composed of at least a screen surface in a theater and at least one other surface in the theater which is made of a different material from the screen surface,

wherein images projected onto said at least one other surface are corrected based on properties of the material of said other surface to create images that are more harmonious with those images being projected on the screen surface, and

wherein images projected onto said at least one other surface are complimentary images to those images being projected onto the screen surface so as to create a total image which provides three-dimensional effects by projecting different images onto the plurality of projection surfaces.

2. The multi-projection system according to claim 1, wherein the images projected onto the projection surfaces are sub-images which are divided from one image.

3. The multi-projection system according to claim 1, wherein a main image is reproduced on one of the projection surfaces disposed at a front side while images with special effects are being reproduced on remaining ones of the projection surfaces disposed at lateral sides.

4. The multi-projection system according to claim 1, wherein the correction is performed in accordance with reflection ratio of the projection surfaces.

5. The multi-projection system according to claim 1, wherein one projector is provided for each projection surface.

6. The multi-projection system according to claim 1, wherein the number of projection surfaces disposed on certain side is provided plurally.

7. The multi-projection system according to claim 1, wherein the screen is made of PVC, white-coated PVC, pearl-coated PVC, or aluminum-coated PVC.

8. The multi-projection system according to claim 1, wherein the correction is performed in accordance with the colors of the projection surfaces.

9. The multi-projection system according to claim 1, wherein the correction is performed in accordance with the materials of the projection surfaces.

10. The multi-projection system according to claim 1, wherein the correction is performed in accordance with the shapes of the projection surfaces.

11. The multi-projection system according to claim 1, wherein the correction is performed in accordance with the distances between the projection surfaces and the projectors caused by the positions of the projectors or in accordance with the image projection angles.

12. The multi-projection system according to claim 1, wherein each wall surface comprises a sound-absorbing material.

13. The multi-projection system according to claim 12, wherein the sound-absorbing material comprises any one of a porous sound-absorbing material, a vibrating plate sound-absorbing material, and a resonant sound-absorbing material.

14. The multi-projection system according to claim 1, wherein each wall surface is coated with optical paint for light reflection.

15. The multi-projection system according to claim 1, wherein the total image provides three-dimensional effects without use of a stereoscopic projection system.