DE69129023D1 - Vorrichtung zum verbessern des optischen kontrastes eines holographischen bildes - Google Patents

Vorrichtung zum verbessern des optischen kontrastes eines holographischen bildes

Info

Publication number
DE69129023D1
DE69129023D1 DE69129023T DE69129023T DE69129023D1 DE 69129023 D1 DE69129023 D1 DE 69129023D1 DE 69129023 T DE69129023 T DE 69129023T DE 69129023 T DE69129023 T DE 69129023T DE 69129023 D1 DE69129023 D1 DE 69129023D1
Authority
DE
Germany
Prior art keywords
holographic image
improving
optical contrast
hologram
dark object
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 - Fee Related
Application number
DE69129023T
Other languages
English (en)
Other versions
DE69129023T2 (de
Inventor
Thierry Garcon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE69129023D1 publication Critical patent/DE69129023D1/de
Publication of DE69129023T2 publication Critical patent/DE69129023T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • 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
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H2001/0055—Adaptation of holography to specific applications in advertising or decorative art
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2270/00—Substrate bearing the hologram
    • G03H2270/20—Shape
    • G03H2270/21—Curved bearing surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
DE69129023T 1990-05-21 1991-05-21 Vorrichtung zum verbessern des optischen kontrastes eines holographischen bildes Expired - Fee Related DE69129023T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9006295A FR2662274B1 (fr) 1990-05-21 1990-05-21 Dispositif pour ameliorer le contraste d'une image holographique presentee en pleine lumiere.
PCT/FR1991/000410 WO1991018330A2 (fr) 1990-05-21 1991-05-21 Dispositif pour ameliorer le contraste optique d'une image holographique

Publications (2)

Publication Number Publication Date
DE69129023D1 true DE69129023D1 (de) 1998-04-09
DE69129023T2 DE69129023T2 (de) 1998-10-08

Family

ID=9396788

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129023T Expired - Fee Related DE69129023T2 (de) 1990-05-21 1991-05-21 Vorrichtung zum verbessern des optischen kontrastes eines holographischen bildes

Country Status (7)

Country Link
EP (1) EP0530313B1 (de)
AT (1) ATE163774T1 (de)
AU (1) AU7952591A (de)
DE (1) DE69129023T2 (de)
ES (1) ES2115614T3 (de)
FR (1) FR2662274B1 (de)
WO (1) WO1991018330A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6616963B1 (en) 2000-11-15 2003-09-09 Nestec S.A. Laminated candy products made by an extrusion process
US6592928B2 (en) 2000-11-15 2003-07-15 Nestec S.A. Festooned laminated candy and methods for making same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR40409E (fr) * 1931-06-26 1932-06-23 Perfectionnements aux systèmes de suppression ou de réduction des réflexions des fenêtres
GB419569A (en) * 1934-01-24 1934-11-14 Albert Farr Cecil Davies Improved means for minimising or nullifying window reflections
US2131875A (en) * 1935-12-31 1938-10-04 Libbey Owens Ford Glass Co Nonreflecting window
CA1081510A (en) * 1977-03-08 1980-07-15 James M. Lapeyre Controlled reflection readout for displays
JPS5624312A (en) * 1979-08-07 1981-03-07 Ricoh Co Ltd Recording and reconstructing method in hologram light polarizing system
JPS63287988A (ja) * 1987-05-21 1988-11-25 Canon Inc ホログラム
DE3735983A1 (de) * 1987-10-23 1989-05-03 Yazaki Corp Holographische mehrfachanzeigevorrichtung
FR2633069B1 (fr) * 1988-06-20 1993-12-31 Garcon Thierry Procede de realisation d'un hologramme de transfert a grand champ de vision sur son imagerie reelle orthoscopique et hologramme ainsi obtenu
JPH02165400A (ja) * 1988-12-20 1990-06-26 Fujitsu Ltd 信号表示器

Also Published As

Publication number Publication date
WO1991018330A2 (fr) 1991-11-28
WO1991018330A3 (fr) 1992-02-20
DE69129023T2 (de) 1998-10-08
EP0530313B1 (de) 1998-03-04
EP0530313A1 (de) 1993-03-10
AU7952591A (en) 1991-12-10
ATE163774T1 (de) 1998-03-15
FR2662274B1 (fr) 1992-09-04
FR2662274A1 (fr) 1991-11-22
ES2115614T3 (es) 1998-07-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee