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Holographic Information Storage and Retrieval

IP.com Disclosure Number: IPCOM000094276D
Original Publication Date: 1966-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Erdos, P: AUTHOR

Abstract

A series of images with different information content can be superimposed in a single hologram using different angles of incidence of light for each of the images during exposure. After each exposure, the holographic plate is turned about an axis lying in its plane by an angle large enough to avoid noise from the preceding image.

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Holographic Information Storage and Retrieval

A series of images with different information content can be superimposed in a single hologram using different angles of incidence of light for each of the images during exposure. After each exposure, the holographic plate is turned about an axis lying in its plane by an angle large enough to avoid noise from the preceding image.

To read the individual images stored in it, the holographic plate is turned about the axis to the angular positions associated with the desired images. It is also possible to maintain the hologram in a fixed position and to have the light source assume appropriate positions.

Motion picture impression can be obtained in case the subsequent images correspond to subsequent phases of motion. Such is realized by slowly rotating the hologram about its axis in a jerky manner.

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