GB1043910A - Projection system - Google Patents

Projection system

Info

Publication number
GB1043910A
GB1043910A GB52716/64A GB5271664A GB1043910A GB 1043910 A GB1043910 A GB 1043910A GB 52716/64 A GB52716/64 A GB 52716/64A GB 5271664 A GB5271664 A GB 5271664A GB 1043910 A GB1043910 A GB 1043910A
Authority
GB
United Kingdom
Prior art keywords
viscosity
toluene
friedel
medium
benzyl
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
GB52716/64A
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 GB1043910A publication Critical patent/GB1043910A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

1,043,910. Cathode-ray tubes. GENERAL ELECTRIC CO. Dec. 29, 1964 [Jan. 2, 1964], No. 52716/64. Heading H1D. [Also in Division H4] A projection system comprises a transparent container having a transparent conducting interior and a deformable medium which has a viscosity of at least 100 centistokes at 25‹ C. and is the Friedel-Crafts reaction product of a benzyl halide, preferably benzyl chloride, and benzene, toluene, xylene, benzyl toluene, or diphenyl methane, or a mixture of two or more thereof. The medium is deformed by the force of attraction between the conducting layer and surface charges deposited by an incident modulated electron beam moving in a rectangular raster (e.g. a television signal), and produces corresponding modulation in the intensity of a light beam which is projected through the deformable medium on to a viewing screen, a Schlieren optical system being used. The Specification includes examples of methods of producing some of the above Friedel-Crafts reaction products which may be used over long periods of time without increase in viscosity or decomposition under electron bombardment and have the desired viscosity and resistivity and low vapour pressure.
GB52716/64A 1964-01-02 1964-12-29 Projection system Expired GB1043910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US335151A US3288927A (en) 1964-01-02 1964-01-02 Projection system

Publications (1)

Publication Number Publication Date
GB1043910A true GB1043910A (en) 1966-09-28

Family

ID=23310492

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52716/64A Expired GB1043910A (en) 1964-01-02 1964-12-29 Projection system

Country Status (5)

Country Link
US (1) US3288927A (en)
CH (1) CH486115A (en)
DE (1) DE1270189B (en)
FR (1) FR1427947A (en)
GB (1) GB1043910A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557304A (en) * 1967-10-24 1971-01-19 Richard O Rue Remote control flying system
US3564134A (en) * 1968-07-03 1971-02-16 Us Navy Two-camera remote drone control
US3761616A (en) * 1968-10-11 1973-09-25 Gen Electric Projection system
US3715494A (en) * 1971-01-28 1973-02-06 Gen Electric Projection system
US3766081A (en) * 1972-05-18 1973-10-16 Gen Electric Light modulating medium for image projection apparatus
US3764549A (en) * 1973-01-11 1973-10-09 Gen Electric Light-modulating medium for image projection apparatus
DE3904264A1 (en) * 1989-02-08 1990-08-09 Hertz Inst Heinrich FLUID WITH INCREASED RESISTANCE TO RADIATION CHANGES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943147A (en) * 1958-01-13 1960-06-28 Gen Electric Projection system
US3006972A (en) * 1959-08-21 1961-10-31 Standard Oil Co Coupling of aromatic rings
US3109868A (en) * 1961-10-30 1963-11-05 Standard Oil Co Coupling of aromatic rings

Also Published As

Publication number Publication date
US3288927A (en) 1966-11-29
CH486115A (en) 1970-02-15
FR1427947A (en) 1966-02-11
DE1270189B (en) 1968-06-12

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