Device for the creation of three-dimensional images

• US 5,311,357 A
• Filed: 12/03/1992
• Issued: 05/10/1994
• Est. Priority Date: 01/28/1992
• Status: Expired due to Fees

• Current Assignee: Vizta 3D, Inc.
• Original Assignee: Image Technology Associates
• Inventors: Katz, Burkhard, Summer, Susan K.
• Primary Examiner(s): Sugarman, Scott J.
• Application Number:
  US07/985,592
• Time in Patent Office: 523 Days
• Field of Search: 359/471, 359/472, 359/478, 359/479, 359/858
• US Class Current: 359/479
• CPC Class Codes: G02B 30/56 by projecting aerial or floating images
• CPC Class Codes: G09F 19/16 involving the use of mirrors
• CPC Class Codes: G09F 19/18 involving the use of optical projection means, e.g. projection of images on clouds projection apparatus per se G03B
• CPC Class Codes: G09F 19/22 Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
• CPC Class Codes: G09F 2019/221 on tunnel walls for underground trains

Abstract

Apparatus for creating a three-dimensional image in space of an object. The device employs concave mirrors positioned in a unique arrangement with respect to one another so that the clarity and image produced therefrom is enhanced. Additionally, a videotape option allows a whole image to be broadcast and real objects merged with the broadcast image so that the entire combined image appears three-dimensional and realistic to a properly located observer.

Claims

1. A device for producing three-dimensional optical images of an object comprising:

an outer housing having front and rear walls and a viewing hole through said front wall;

support means for said object located within said housing;

illuminating means within said housing, said illumination means providing rays of light to reflect off the object; and

first and second concave mirrors positioned within said outer housing, said second concave mirror positioned to focus said rays of light to a virtual image formed by reflection from said second concave mirror, said first concave mirror positioned to reflect said rays reflected from said second concave mirror and to focus to a real image of said object said rays reflected from said second concave mirror, said concave mirrors being arranged to form an acute angle with respect to one another, and further being arranged such that the optical axes of each of said concave mirrors intersects a vertical plane passing through the center of said viewing hole, wherein said real image extends at least in part outside said housing and is magnified with respect to said object.

2. The device of claim 1 wherein said acute angle is 45°

.

3. The device of claim 1 further comprising light means for illuminating an object within said housing.

4. The device of claim 1 further comprising a flat mirror arranged to reflect an object off of said first concave mirror.

5. The device of claim 1 wherein at least one of said concave mirrors is semi-transparent and wherein a moving picture is displayed behind said at least one concave mirror.

6. Apparatus for producing a combined image comprising:

an outer housing having front and rear walls and a viewing hole through said front wall;

a first semi-transparent concave mirror within said housing;

a first item to be displayed behind said first semi-transparent mirror;

a second concave mirror arranged to reflect a virtual image of said second item into said first semi-transparent concave mirror; and

means for illuminating said second item at predetermined times.

7. Apparatus of claim 6 wherein said first item includes a moving picture displayed on a screen.