SE8200123L - DEVICE FOR INPUT, OUTPUT AND TRANSFER OF INFORMATION IN AN ELECTROOPTICAL MEDIUM - Google Patents

DEVICE FOR INPUT, OUTPUT AND TRANSFER OF INFORMATION IN AN ELECTROOPTICAL MEDIUM

Info

Publication number
SE8200123L
SE8200123L SE8200123A SE8200123A SE8200123L SE 8200123 L SE8200123 L SE 8200123L SE 8200123 A SE8200123 A SE 8200123A SE 8200123 A SE8200123 A SE 8200123A SE 8200123 L SE8200123 L SE 8200123L
Authority
SE
Sweden
Prior art keywords
modulator
information
modulators
light
electrooptical
Prior art date
Application number
SE8200123A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE429796B (en
Inventor
T Brogardh
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE8200123A priority Critical patent/SE429796B/en
Priority to EP82710061A priority patent/EP0083900A3/en
Priority to JP58000548A priority patent/JPS58123523A/en
Publication of SE8200123L publication Critical patent/SE8200123L/en
Publication of SE429796B publication Critical patent/SE429796B/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/30—Digital stores in which the information is moved stepwise, e.g. shift registers using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Landscapes

  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The information concerned is in the form of a light intensity and/or light polarisation and/or spectral composition varying in one, two or three dimensions and/or over time and the conversion of the information is performed by electrooptical modulators, which for example comprise liquid crystals, and photodetectors, such as for example photoresistors. According to the invention, the electrooptical modulators (1) consist of a material of intrinsic hysteresis with respect to the dependence of the light transmission on the modulator voltage. The modulators (1a, 1b...) are located in the path of rays between at least one light source and photodetectors (2a, 2b..), of which at least one is arranged behind each modulator (1), seen from the light source. Each modulator has on its one side an electrode which is isolated from the other modulator electrodes and determines the geometrical size of the modulator. Each photodetector (2) is electrically connected to the electrode (12) of a neighbouring modulator. In this way, many registers of simple construction are obtained. The shift registers are activated either electrically by means of voltage sources (4 and 5) or optically. <IMAGE>
SE8200123A 1982-01-12 1982-01-12 DEVICE FOR CONVERTING INFORMATION IN ELECTRICAL FORM TO OPTICAL FORM, OR VICE VERSA, THROUGH THE USE OF ELECTRO-OPTICAL MODULATORS SE429796B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8200123A SE429796B (en) 1982-01-12 1982-01-12 DEVICE FOR CONVERTING INFORMATION IN ELECTRICAL FORM TO OPTICAL FORM, OR VICE VERSA, THROUGH THE USE OF ELECTRO-OPTICAL MODULATORS
EP82710061A EP0083900A3 (en) 1982-01-12 1982-12-31 Device for the conversion of information from the electric into the optical form and/or vice versa
JP58000548A JPS58123523A (en) 1982-01-12 1983-01-07 Electrooptic information converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8200123A SE429796B (en) 1982-01-12 1982-01-12 DEVICE FOR CONVERTING INFORMATION IN ELECTRICAL FORM TO OPTICAL FORM, OR VICE VERSA, THROUGH THE USE OF ELECTRO-OPTICAL MODULATORS

Publications (2)

Publication Number Publication Date
SE8200123L true SE8200123L (en) 1983-07-13
SE429796B SE429796B (en) 1983-09-26

Family

ID=20345687

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8200123A SE429796B (en) 1982-01-12 1982-01-12 DEVICE FOR CONVERTING INFORMATION IN ELECTRICAL FORM TO OPTICAL FORM, OR VICE VERSA, THROUGH THE USE OF ELECTRO-OPTICAL MODULATORS

Country Status (3)

Country Link
EP (1) EP0083900A3 (en)
JP (1) JPS58123523A (en)
SE (1) SE429796B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62178489U (en) * 1986-04-30 1987-11-12

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB856960A (en) * 1958-04-16 1960-12-21 Ncr Co Data storage units and logical circuit devices employing a combination of such units
DE2141298C3 (en) * 1970-09-10 1974-10-24 Bbc Ag Brown, Boveri & Cie, Baden (Schweiz) Opto-electronic display device
SE425822B (en) * 1981-04-02 1982-11-08 Asea Ab DEVICE FOR CONVERTING INFORMATION IN ELECTRICAL FORM TO OPTICAL FORM AND / OR VICE VERSA

Also Published As

Publication number Publication date
JPS58123523A (en) 1983-07-22
EP0083900A3 (en) 1985-05-22
EP0083900A2 (en) 1983-07-20
SE429796B (en) 1983-09-26

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