WO1991018304A3 - Ameliorations relatives a des ecrans a microlentilles, des materiaux photopolymerisables et des articles utilisant ceux-ci - Google Patents

Ameliorations relatives a des ecrans a microlentilles, des materiaux photopolymerisables et des articles utilisant ceux-ci Download PDF

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Publication number
WO1991018304A3
WO1991018304A3 PCT/GB1991/000795 GB9100795W WO9118304A3 WO 1991018304 A3 WO1991018304 A3 WO 1991018304A3 GB 9100795 W GB9100795 W GB 9100795W WO 9118304 A3 WO9118304 A3 WO 9118304A3
Authority
WO
WIPO (PCT)
Prior art keywords
exposure
lenses
photopolymerisable
array
lens
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.)
Ceased
Application number
PCT/GB1991/000795
Other languages
English (en)
Other versions
WO1991018304A2 (fr
Inventor
William Nevil Heaton Johnson
Nicholas John Phillips
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.)
SAR REALISATIONS Ltd
Original Assignee
SAR REALISATIONS 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
Priority claimed from GB909011298A external-priority patent/GB9011298D0/en
Priority claimed from GB909011297A external-priority patent/GB9011297D0/en
Priority claimed from GB909011302A external-priority patent/GB9011302D0/en
Priority claimed from GB909011296A external-priority patent/GB9011296D0/en
Priority claimed from GB909011295A external-priority patent/GB9011295D0/en
Priority claimed from GB909011294A external-priority patent/GB9011294D0/en
Priority claimed from GB909011299A external-priority patent/GB9011299D0/en
Priority claimed from GB909011300A external-priority patent/GB9011300D0/en
Priority claimed from GB909011293A external-priority patent/GB9011293D0/en
Priority to DE69126975T priority Critical patent/DE69126975T2/de
Application filed by SAR REALISATIONS Ltd filed Critical SAR REALISATIONS Ltd
Priority to EP91909920A priority patent/EP0530269B1/fr
Priority to US07/958,329 priority patent/US5442482A/en
Publication of WO1991018304A2 publication Critical patent/WO1991018304A2/fr
Publication of WO1991018304A3 publication Critical patent/WO1991018304A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0087—Simple or compound lenses with index gradient
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method
    • G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/1221—Basic optical elements, e.g. light-guiding paths made from organic materials
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12102—Lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12166—Manufacturing methods
    • G02B2006/1219—Polymerisation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Holo Graphy (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

On décrit des variations à partir d'une technique de base de fabrication d'un écran à diffusion ou à rétroprojection, comprenant un agencement de microlentilles produites par une exposition sélective à la lumière et la polymérisation sélective subséquente d'une feuille de matériau photopolymérisable. Ainsi, les lentilles peuvent être pourvues d'une forme allongée dans un sens préféré transversal aux axes des lentilles par l'exposition à travers un élément à mailles pourvu d'un alignement de fentes. Les lentilles peuvent avoir un indice de réfraction gradué et posséder un relief superficiel qui accroît la puissance de la lentille, ce relief étant produit naturellement ou par moulage. Le matériau photopolymérisable peut être exposé au moyen d'une lumière laser, par exemple à une image d'holographie, et une telle exposition peut être effectuée à travers une lame de quart d'onde mise en rotation continue pour éliminer des micro-défauts. On peut rehausser la puissance de la lentille en chauffant le matériau photo-polymérisable jusqu'à une température proche de la température d'amollissement du polymère associé avant de le soumettre à l'exposition à la lumière et en maintenant le matériau à cette température au cours de la polymérisation qui en résulte.
PCT/GB1991/000795 1990-05-21 1991-05-21 Ameliorations relatives a des ecrans a microlentilles, des materiaux photopolymerisables et des articles utilisant ceux-ci Ceased WO1991018304A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69126975T DE69126975T2 (de) 1990-05-21 1991-05-21 Mikrolinsen-bildschirme aus photopolymerisierbaren materialien und verfahren zur ihrer herstellung
US07/958,329 US5442482A (en) 1990-05-21 1991-05-21 Microlens screens, photopolymerisable materials and artifacts utilising the same
EP91909920A EP0530269B1 (fr) 1990-05-21 1991-05-21 Ecrans a microlentilles formes de materiaux photopolymerisables et procedes pour les produire

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
GB9011296.2 1990-05-21
GB909011299A GB9011299D0 (en) 1990-05-21 1990-05-21 Method of manufacturing a microlens screen
GB9011300.2 1990-05-21
GB909011300A GB9011300D0 (en) 1990-05-21 1990-05-21 Improvements in or relating to the formation of microlenses in photopolymerisable materials
GB909011294A GB9011294D0 (en) 1990-05-21 1990-05-21 Microlens array material
GB909011293A GB9011293D0 (en) 1990-05-21 1990-05-21 Microlens screen
GB9011298.8 1990-05-21
GB909011296A GB9011296D0 (en) 1990-05-21 1990-05-21 Light diffusing material and method of making the same
GB9011302.8 1990-05-21
GB909011295A GB9011295D0 (en) 1990-05-21 1990-05-21 Graded refractive index lenses
GB9011295.4 1990-05-21
GB909011298A GB9011298D0 (en) 1990-05-21 1990-05-21 Method of manufacturing a microlens screen
GB909011297A GB9011297D0 (en) 1990-05-21 1990-05-21 Optical printing system
GB9011294.7 1990-05-21
GB9011293.9 1990-05-21
GB9011297.0 1990-05-21
GB9011299.6 1990-05-21
GB909011302A GB9011302D0 (en) 1990-05-21 1990-05-21 Novel techniques for the fabrication of optical microstructures

Publications (2)

Publication Number Publication Date
WO1991018304A2 WO1991018304A2 (fr) 1991-11-28
WO1991018304A3 true WO1991018304A3 (fr) 1992-01-09

Family

ID=27576329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/000795 Ceased WO1991018304A2 (fr) 1990-05-21 1991-05-21 Ameliorations relatives a des ecrans a microlentilles, des materiaux photopolymerisables et des articles utilisant ceux-ci

Country Status (7)

Country Link
US (1) US5442482A (fr)
EP (1) EP0530269B1 (fr)
JP (1) JP3553929B2 (fr)
AT (1) ATE155897T1 (fr)
AU (1) AU7881291A (fr)
DE (1) DE69126975T2 (fr)
WO (1) WO1991018304A2 (fr)

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Also Published As

Publication number Publication date
DE69126975D1 (de) 1997-08-28
ATE155897T1 (de) 1997-08-15
EP0530269A1 (fr) 1993-03-10
US5442482A (en) 1995-08-15
EP0530269B1 (fr) 1997-07-23
JP3553929B2 (ja) 2004-08-11
AU7881291A (en) 1991-12-10
DE69126975T2 (de) 1997-11-27
JPH05509416A (ja) 1993-12-22
WO1991018304A2 (fr) 1991-11-28

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