GB1383970A - Method of producing hologram arrays - Google Patents

Method of producing hologram arrays

Info

Publication number
GB1383970A
GB1383970A GB1940472A GB1940472A GB1383970A GB 1383970 A GB1383970 A GB 1383970A GB 1940472 A GB1940472 A GB 1940472A GB 1940472 A GB1940472 A GB 1940472A GB 1383970 A GB1383970 A GB 1383970A
Authority
GB
United Kingdom
Prior art keywords
read
hologram
beams
detector
parallel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1940472A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB1940472A priority Critical patent/GB1383970A/en
Publication of GB1383970A publication Critical patent/GB1383970A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • G03H1/28—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique superimposed holograms only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/042—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using information stored in the form of interference pattern

Abstract

1383970 Hologram array PLESSEY CO Ltd 9 March 1973 [26 April 1972] 19404/72 Heading G2J A hologram array 6 having high diffraction efficiency and coincident reconstructions (thus enabling a single photo-detector to be used for read-out) is made by first forming a hologram 1 containing the information and spaced points 1a-c, illuminating this by read-out beams 3-5 and producing the second hologram 6 through lens 2 so that when read-out by parallel read-out beams anti-parallel to the reference beams (only one, 7, shown) coincidence of all margins is achieved at 8. The photo-detector may be displaced somewhat from 8 to enable lens 2 to be one having positional optics as explained in the Specification.
GB1940472A 1972-04-26 1972-04-26 Method of producing hologram arrays Expired GB1383970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1940472A GB1383970A (en) 1972-04-26 1972-04-26 Method of producing hologram arrays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1940472A GB1383970A (en) 1972-04-26 1972-04-26 Method of producing hologram arrays

Publications (1)

Publication Number Publication Date
GB1383970A true GB1383970A (en) 1974-02-12

Family

ID=10128794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1940472A Expired GB1383970A (en) 1972-04-26 1972-04-26 Method of producing hologram arrays

Country Status (1)

Country Link
GB (1) GB1383970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119111A (en) * 1982-04-16 1983-11-09 Hollusions Limited Method and apparatus for making holograms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119111A (en) * 1982-04-16 1983-11-09 Hollusions Limited Method and apparatus for making holograms

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee