JPS5467448A - Optical controller - Google Patents
Optical controllerInfo
- Publication number
- JPS5467448A JPS5467448A JP13449977A JP13449977A JPS5467448A JP S5467448 A JPS5467448 A JP S5467448A JP 13449977 A JP13449977 A JP 13449977A JP 13449977 A JP13449977 A JP 13449977A JP S5467448 A JPS5467448 A JP S5467448A
- Authority
- JP
- Japan
- Prior art keywords
- crystal
- substance
- electrode
- impressed
- polarization
- 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.)
- Granted
Links
Abstract
PURPOSE: To provide an optical controller, which is reduced in stroke and which is capable of switching at a high speed with a low power, by electrically converting the axis of a polarized light with the use of an electrochromic crystal so that it may be discriminated by a double refractive substance.
CONSTITUTION: A crystal 1, which is cut in parallel with a Z sxis from such a crystal of lithium tantalate as is composed of lithium oxide in a quantity exceeding tantalum oxide 10 to 30%, is formed with an inter-digital electrode 2, which uses a control voltage genreator 3 for impressing an electric field in an X direction, together with a double refractive substance 6, thus constituting an optical contoller. In case no voltage is impressed upon the electrode 2, the polarization 4 in the X direction to pass in the Y direction is allowed as it is to pass through the crystal 1 and te substance 6 so that it becomes an output light 8. In case a preset voltage is impressed upon the electrode 2, the polarization 4 is changed into that in the Z direction after it has passed through the crystal 1 and the substance 6 so that it becomes an output light 7, thus effecting the switching operations.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13449977A JPS5467448A (en) | 1977-11-08 | 1977-11-08 | Optical controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13449977A JPS5467448A (en) | 1977-11-08 | 1977-11-08 | Optical controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5467448A true JPS5467448A (en) | 1979-05-30 |
JPS6148138B2 JPS6148138B2 (en) | 1986-10-22 |
Family
ID=15129741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13449977A Granted JPS5467448A (en) | 1977-11-08 | 1977-11-08 | Optical controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5467448A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02108862U (en) * | 1989-02-14 | 1990-08-29 | ||
JPH02129043U (en) * | 1989-03-28 | 1990-10-24 | ||
JPH0840466A (en) * | 1994-07-27 | 1996-02-13 | Nidaiki Kk | Air-permeable bag |
-
1977
- 1977-11-08 JP JP13449977A patent/JPS5467448A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6148138B2 (en) | 1986-10-22 |
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