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Three Dimensional Projection Apparatus

IP.com Disclosure Number: IPCOM000083697D
Original Publication Date: 1975-Jul-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Martin, M: AUTHOR

Abstract

In this apparatus, capable of forming a volumetric 3-dimensional display, time problems for correlating the projection unit and position of the screen are minimized.

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Three Dimensional Projection Apparatus

In this apparatus, capable of forming a volumetric 3-dimensional display, time problems for correlating the projection unit and position of the screen are minimized.

The apparatus has a double-shaft motor 10 mounted on a suitable support
12. On one end of shaft 14 are mounted a plurality of screens 16, preferably of translucent material, that are positioned at an angle of 45 degrees relative to the axis of the shaft 14. On the other end of the shaft 14 is mounted a disc 18 for supporting film capable of depicting on a moving screen 16 an image in three- dimensions.

Light source 20 in combination with lens 22 provide the light intensity for projection of the image. The images illuminated by light 20 and lens 22 are projected by projection lens 24 on mirror 26, which reflects the image back to the rotating screens 16. Since film 18 rotates as a unit with screens 16, synchronism problems are minimized.

In operation, the images preferably in the forms of a plurality of vertical slits are projected on the screen 16 and changed constantly as the position of the screen changes. The numerous images are merged by the eye into a single 3- dimensional object, which can be viewed in many positions about the screen 16.

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