JPS5550219A - Aperture device - Google Patents
Aperture deviceInfo
- Publication number
- JPS5550219A JPS5550219A JP12302678A JP12302678A JPS5550219A JP S5550219 A JPS5550219 A JP S5550219A JP 12302678 A JP12302678 A JP 12302678A JP 12302678 A JP12302678 A JP 12302678A JP S5550219 A JPS5550219 A JP S5550219A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- liquid crystal
- light
- transmittable
- recess
- 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
- G02F1/133371—Cells with varying thickness of the liquid crystal layer
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)
- Diaphragms For Cameras (AREA)
- Liquid Crystal (AREA)
Abstract
PURPOSE: To eliminate mechanical portions and enable aperture control to be performed stably by filling liquid crystal material between a pair of light transmittable electrodes provided opposedly within a light transmittable case and controlling the light transmission part of the liquid crystal according to the voltage to be supplied to the electrodes.
CONSTITUTION: Out a pair of transparent electrodes 31, 32 provided within a cylindrical light-transmittable case 30, a recess 311 of a conical shape is formed in the electrode 31 and liquid crystal 33 of, e.g., scattering type, is filled between the electrodes 31, 32. The transparent electrodes 31, 32 have the electric field distribution proportional to the diameter of the recess 311 of conical shape, in which the liquid crystal 33 is re-arrayed according to the voltage to be supplied to the electrodes 31, 32 and the diameter of the circular light transmission part C is varied in the arrow directions, whereby the regulation of the quantity of light is accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12302678A JPS5550219A (en) | 1978-10-05 | 1978-10-05 | Aperture device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12302678A JPS5550219A (en) | 1978-10-05 | 1978-10-05 | Aperture device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5550219A true JPS5550219A (en) | 1980-04-11 |
Family
ID=14850370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12302678A Pending JPS5550219A (en) | 1978-10-05 | 1978-10-05 | Aperture device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5550219A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60250785A (en) * | 1984-05-28 | 1985-12-11 | Seiko Epson Corp | Television camera provided with liquid crystal automatic dimmer |
JPS61170732U (en) * | 1985-04-12 | 1986-10-23 | ||
JPS62159119A (en) * | 1986-01-07 | 1987-07-15 | Fujitsu Ltd | Liquid crystal display panel |
JPS6441495U (en) * | 1987-09-08 | 1989-03-13 | ||
JP2005257783A (en) * | 2004-03-09 | 2005-09-22 | Sony Corp | Electric dimmer element, lens barrel, and imaging apparatus |
CN107783349A (en) * | 2016-08-24 | 2018-03-09 | 蔡睿哲 | The aperture assemblies of non-mechanical adjustable aperture |
USD852864S1 (en) | 2015-08-21 | 2019-07-02 | Fujifilm Corporation | Aperture adjusting device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50126232A (en) * | 1974-03-23 | 1975-10-03 | ||
JPS5171095A (en) * | 1974-12-17 | 1976-06-19 | Matsushita Electric Ind Co Ltd | EKISHODENATSUHYO JISOCHI |
-
1978
- 1978-10-05 JP JP12302678A patent/JPS5550219A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50126232A (en) * | 1974-03-23 | 1975-10-03 | ||
JPS5171095A (en) * | 1974-12-17 | 1976-06-19 | Matsushita Electric Ind Co Ltd | EKISHODENATSUHYO JISOCHI |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60250785A (en) * | 1984-05-28 | 1985-12-11 | Seiko Epson Corp | Television camera provided with liquid crystal automatic dimmer |
JPS61170732U (en) * | 1985-04-12 | 1986-10-23 | ||
JPH0516422Y2 (en) * | 1985-04-12 | 1993-04-30 | ||
JPS62159119A (en) * | 1986-01-07 | 1987-07-15 | Fujitsu Ltd | Liquid crystal display panel |
JPS6441495U (en) * | 1987-09-08 | 1989-03-13 | ||
JP2005257783A (en) * | 2004-03-09 | 2005-09-22 | Sony Corp | Electric dimmer element, lens barrel, and imaging apparatus |
JP4543309B2 (en) * | 2004-03-09 | 2010-09-15 | ソニー株式会社 | Optical device, lens barrel and imaging device |
USD852864S1 (en) | 2015-08-21 | 2019-07-02 | Fujifilm Corporation | Aperture adjusting device |
CN107783349A (en) * | 2016-08-24 | 2018-03-09 | 蔡睿哲 | The aperture assemblies of non-mechanical adjustable aperture |
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