JPS5692517A - Liquid crystal shutter - Google Patents
Liquid crystal shutterInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
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.
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)
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 |
-
1979
- 1979-12-26 JP JP17332779A patent/JPS5692517A/en active Pending
Cited By (2)
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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