JPS5692517A - Liquid crystal shutter - Google Patents

Liquid crystal shutter

Info

Publication number
JPS5692517A
JPS5692517A JP17332779A JP17332779A JPS5692517A JP S5692517 A JPS5692517 A JP S5692517A JP 17332779 A JP17332779 A JP 17332779A JP 17332779 A JP17332779 A JP 17332779A JP S5692517 A JPS5692517 A JP S5692517A
Authority
JP
Japan
Prior art keywords
liquid crystal
optical switching
responsiveness
shutter
temp
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.)
Pending
Application number
JP17332779A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Goto
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP17332779A priority Critical patent/JPS5692517A/en
Publication of JPS5692517A publication Critical patent/JPS5692517A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell

Abstract

PURPOSE:To improve the responsiveness of a liquid crystal shutter by providing a transparent exothermic film on the front surface of a panel constituting the shutter using a liquid crystal as an optical switching element. CONSTITUTION:A heat sensitive element 205 is provided by avoiding the optical switching part 203 provided on both surfaces of a liquid crystal panel 201 and resistance pattern 202 consisting of a trasnparent exothermic film, and the current flowing to the resistance 202 is controlled together with the temp. changing data of this element 205, whereby optical switching is accomplished in a fixed temp. rnage. This makes is possible to realize the responsiveness of about several mu seconds in conformity with on the off by using materials of different dielectric anisotropies of frequencies for the crystal body and using a driving system of applying frequencies of about several tens kHz at the on time.
JP17332779A 1979-12-26 1979-12-26 Liquid crystal shutter Pending JPS5692517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17332779A JPS5692517A (en) 1979-12-26 1979-12-26 Liquid crystal shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17332779A JPS5692517A (en) 1979-12-26 1979-12-26 Liquid crystal shutter

Publications (1)

Publication Number Publication Date
JPS5692517A true JPS5692517A (en) 1981-07-27

Family

ID=15958372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17332779A Pending JPS5692517A (en) 1979-12-26 1979-12-26 Liquid crystal shutter

Country Status (1)

Country Link
JP (1) JPS5692517A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103022U (en) * 1981-12-28 1983-07-13 セイコーエプソン株式会社 optical writing device
DE102018122487A1 (en) 2017-09-14 2019-03-14 Varroc Lighting Systems S.R.O. A light-conducting optical system, in particular for a lighting device of a vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103022U (en) * 1981-12-28 1983-07-13 セイコーエプソン株式会社 optical writing device
DE102018122487A1 (en) 2017-09-14 2019-03-14 Varroc Lighting Systems S.R.O. A light-conducting optical system, in particular for a lighting device of a vehicle

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