GB1190825A - Improvements in Fluid Light Modulating Mediums for Image Projection Apparatus - Google Patents

Improvements in Fluid Light Modulating Mediums for Image Projection Apparatus

Info

Publication number
GB1190825A
GB1190825A GB43426/67A GB4342667A GB1190825A GB 1190825 A GB1190825 A GB 1190825A GB 43426/67 A GB43426/67 A GB 43426/67A GB 4342667 A GB4342667 A GB 4342667A GB 1190825 A GB1190825 A GB 1190825A
Authority
GB
United Kingdom
Prior art keywords
polymer
methylphenylsiloxane
dissolved
deformable medium
light modulating
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
GB43426/67A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1190825A publication Critical patent/GB1190825A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

1,190,825. Polymer compositions. GENERAL ELECTRIC CO. 25 Sept., 1967 [26 Oct., 1966], No. 43426/67. Headings C3P, C3R and C3T. [Also in Divisions H1 and H4] In a projection system of the type described in Specification 909,403, a transparent deformable medium comprises a fluid having in solution therein polymeric material of molecular weight high enough to produce viscoelastic behaviour in the solution and being present in a concentration at most 35% by weight. The light modulating deformable medium may comprise a polymer of benzyl-toluene (PBT) containing polystyrene or poly-(2-phenyl-6-methyl- 1, 4-phenylene ether) dissolved therein, a polymer of benzylnaphthalene (PBN) containing polystyrene dissolved therein, methylphenylsiloxane liquid containing a methylphenylsiloxane polymer dissolved therein, or an organic silicate liquid containing a methylphenylsiloxane polymer dissolved therein. Detailed examples of the deformable medium are given in the Specification. Other suitable additive polymers for PBT and PBN include polyvinylnaphthalene, polyacenaphthalene and poly-2-vinylbenzofuran. Other additives for methylphenylsiloxane base fluids and silicate fluids include various copolymers of diphenyl tetrasiloxane and dimethyl tetrasiloxane.
GB43426/67A 1966-10-26 1967-09-25 Improvements in Fluid Light Modulating Mediums for Image Projection Apparatus Expired GB1190825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58958366A 1966-10-26 1966-10-26

Publications (1)

Publication Number Publication Date
GB1190825A true GB1190825A (en) 1970-05-06

Family

ID=24358619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43426/67A Expired GB1190825A (en) 1966-10-26 1967-09-25 Improvements in Fluid Light Modulating Mediums for Image Projection Apparatus

Country Status (4)

Country Link
US (1) US3541992A (en)
CH (1) CH514667A (en)
GB (1) GB1190825A (en)
NL (1) NL6713969A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774233A (en) * 1972-02-14 1973-11-20 Eidophor Ag Method and apparatus for reproducing television images from a video signal
US3766081A (en) * 1972-05-18 1973-10-16 Gen Electric Light modulating medium for image projection apparatus
US4529620A (en) * 1984-01-30 1985-07-16 New York Institute Of Technology Method of making deformable light modulator structure
DE3904264A1 (en) * 1989-02-08 1990-08-09 Hertz Inst Heinrich FLUID WITH INCREASED RESISTANCE TO RADIATION CHANGES
US5124834A (en) * 1989-11-16 1992-06-23 General Electric Company Transferrable, self-supporting pellicle for elastomer light valve displays and method for making the same

Also Published As

Publication number Publication date
DE1720869A1 (en) 1970-07-30
DE1720869B2 (en) 1975-06-05
CH514667A (en) 1971-10-31
US3541992A (en) 1970-11-24
NL6713969A (en) 1968-04-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years