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Title: US5257130: Apparatus and method for creating a real image illusion
[ Derwent Title ]

Country: US United States of America

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13 pages

Inventor: Monroe, Marshall M.; Glendale, CA

Assignee: The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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Published / Filed: 1993-10-26 / 1992-01-30

Application Number: US1992000829698

IPC Code: Advanced: G02B 17/06; G02B 27/22; G09F 19/18; G02B 27/00;
IPC-7: G02B 27/22;

ECLA Code: G02B17/06A3; G02B27/22V3; G09F19/18; S02B17/06A3; S02B27/00G;

U.S. Class: Current: 359/478;
Original: 359/478;

Field of Search: 359/478

Priority Number:
1992-01-30  US1992000829698

Abstract:     An apparatus and method for creating real image illusions utilizes a partially transparent scrim positioned between the real image and an optical system which produces the real image from a corresponding real object. When the scrim is illuminated by a light source or projector in front of and at an oblique angle to the scrim, the scrim forms a seemingly solid and non-transparent surface that conceals the optical system from view by an observer. The scrim also protects the optical system from damage and other vandalism, yet it does not distort or interfere with the light rays passing through the scrim to form the real image. The scrim also avoids distracting surface reflections, ghosting and other highlights.

Attorney, Agent or Firm: Pretty, Schroeder, Brueggemann & Clark ;

Primary / Asst. Examiners: Bovernick, Rodney B.; Lester, Evelyn A.

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Designated Country: EP JP 

Family: Show 2 known family members

First Claim:
Show all 53 claims
I claim:     1. An apparatus for creating a real image illusion, comprising:
  • (a) a selectively transparent screen having a plurality of apertures;
  • (b) a real object source and a device behind the screen for producing light rays, corresponding to the real object source, which pass through the apertures in the screen and converge to form a real image in front of the screen; and
  • (c) a light source for projecting light rays onto the screen and creating the appearance of a solid and non-transparent surface which prevents visual access behind the screen.

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Description: Show description

Forward References: Show 35 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (35)   |   Backward references (14)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 2pp US995607  1911-06 Kempinski   WINDOW-DISPLAY.
Get PDF - 3pp US2210806* 1940-08 Etbauer    
Get PDF - 6pp US2576147  1951-11 Sauvage   Apparatus for projecting aerial images in high relief
Get PDF - 3pp US2679188  1954-05 Gould   Depth illusion attachment device for optical projectors
Get PDF - 3pp US3293983  1966-12 Gaudyn   Non-stereo depth perception projection display device
Get PDF - 6pp US3317206  1967-05 Holt   Illusory three-dimensional projection system
Get PDF - 6pp US3647284  1972-03 Elings et al.   OPTICAL DISPLAY DEVICE
Get PDF - 13pp US4509837  1985-04 Kassies   Real image projection device
Get PDF - 8pp US4671625  1987-06 Noble   Optical apparatus for producing a natural, viewable and optically interactive image in free space
Get PDF - 6pp US4802750  1989-02 Welck  Grand Mirage Real image projection system with two curved reflectors of paraboloid of revolution shape having each vertex coincident with the focal point of the other
Get PDF - 9pp US4927238  1990-05 Green et al.  Terzis; Nicholas C. Method and apparatus for displaying a three dimensional visual image
Get PDF - 6pp US5065116  1991-11 Ueda et al.  Silicon Systems Inc. Zero phase restart compensation for VCO
Get PDF - 12pp US5144482  1992-09 Gould   Three dimensional viewing apparatus including a stack of transparent plates and related method
Get PDF - 11pp US5172266  1992-12 Garcia et al.  Texas Instruments Incorporated Real time three dimensional display
  * some details unavailable
Foreign References: None

Other Abstract Info: DERABS G93-258856

Other References:
  • Theory and Problems of Optics by Eugene Hecht, Ph.D., Chapter 4, cover page, (pp. 55, 82 and 86) total 5 pages. (1975).
  • Calculus and Analytic Geometry, by George B. Thomas, Jr. and Ross L. Finney, published by Addison-Wesley Publishing Co., Fifth Edition, exerpts, p. 406, cover and title pages, total 4 pages. Mar. 1980.
  • Some Parameters and Characteristics Of An Off-axis paraboloid, Paper 2791, Society of Photo-Optical Instrumentation Engineers, Sep., 1991, vol. 30, No. 9, pp. 1277-1280, total 4 pages.

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