GB1326313A - Process for converting absorption holograms into phase holograms - Google Patents

Process for converting absorption holograms into phase holograms

Info

Publication number
GB1326313A
GB1326313A GB1488871*[A GB1488871A GB1326313A GB 1326313 A GB1326313 A GB 1326313A GB 1488871 A GB1488871 A GB 1488871A GB 1326313 A GB1326313 A GB 1326313A
Authority
GB
United Kingdom
Prior art keywords
holograms
light
absorption
sensitive layer
contacted
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
GB1488871*[A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1326313A publication Critical patent/GB1326313A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/66—Compositions containing chromates as photosensitive substances
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
    • G03F7/001—Phase modulating patterns, e.g. refractive index patterns
    • 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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/20—Copying holograms by holographic, i.e. optical means
    • 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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/20—Copying holograms by holographic, i.e. optical means
    • G03H2001/207—Copying holograms by holographic, i.e. optical means with modification of the nature of the hologram, e.g. changing from volume to surface relief or from reflection to transmission
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2240/00—Hologram nature or properties
    • G03H2240/10—Physical parameter modulated by the hologram
    • G03H2240/11—Phase only modulation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2240/00—Hologram nature or properties
    • G03H2240/10—Physical parameter modulated by the hologram
    • G03H2240/12—Amplitude only modulation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2260/00—Recording materials or recording processes
    • G03H2260/10—Dichromated gelatine or equivalents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Holo Graphy (AREA)

Abstract

1326313 Holograms AGFA-GEVAERT A G 14 May 1971 [26 May 1970] 14888/71 Heading G2J Phase holograms are photographically produced from absorption holograms using a light-sensitive layer which undergoes a change of refractive index or exposure. Preferred layers are bichromated gelatine and photo-crosslinkable polymers (e.g. polyvinyl annamates), an exposed bichromated gelatine layer may be soaked (especially in a hardening solution), optionally treated with a photographic fixer, rapidly dehydrated (e.g. with isopropanol) and dried. Preferably the image bearing surface of the absorption hologram is contacted with the support of the light-sensitive layer and a laser beam passed through the assembly while maintaining the Bragg condition. In modifications either (a) a mirror is contacted with the light-sensitive layer so that two transmission and two reflection holograms are recorded, or (b) a second reference beam is additionally used so that single transmission and reflection holograms are recorded. Any shrinkage in the absorption hologram can be compensated by using shorter wavelength light for the exposure. Reference has been directed by the Comptroller to Specification 1259971.
GB1488871*[A 1970-05-26 1971-05-14 Process for converting absorption holograms into phase holograms Expired GB1326313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702025617 DE2025617A1 (en) 1970-05-26 1970-05-26 Process for converting absorption holograms into phase holograms

Publications (1)

Publication Number Publication Date
GB1326313A true GB1326313A (en) 1973-08-08

Family

ID=5772108

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1488871*[A Expired GB1326313A (en) 1970-05-26 1971-05-14 Process for converting absorption holograms into phase holograms

Country Status (5)

Country Link
BE (1) BE767176A (en)
CH (1) CH554003A (en)
DE (1) DE2025617A1 (en)
FR (1) FR2093784A5 (en)
GB (1) GB1326313A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221550A (en) * 1988-06-15 1990-02-07 Chubb Electronics Ltd "Holographic data carriers"
GB2271435A (en) * 1992-10-06 1994-04-13 Grumman Aerospace Corp Copying multiple holographic elements

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696557B1 (en) * 1993-10-06 1995-08-25 Grumman Aerospace Corp SYSTEM AND METHOD FOR MANUFACTURING MULTIPLE HOLOGRAPHIC ELEMENTS.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221550A (en) * 1988-06-15 1990-02-07 Chubb Electronics Ltd "Holographic data carriers"
GB2271435A (en) * 1992-10-06 1994-04-13 Grumman Aerospace Corp Copying multiple holographic elements
GB2271435B (en) * 1992-10-06 1996-05-22 Grumman Aerospace Corp A system and method of fabricating multiple holographic elements
US5547786A (en) * 1992-10-06 1996-08-20 Northrop Grumman Corporation System and method of fabricating multiple holographic elements

Also Published As

Publication number Publication date
CH554003A (en) 1974-09-13
DE2025617A1 (en) 1971-12-09
FR2093784A5 (en) 1972-01-28
BE767176A (en) 1971-11-16

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Legal Events

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