JPS57158832A - Image memory device - Google Patents
Image memory deviceInfo
- Publication number
- JPS57158832A JPS57158832A JP56044812A JP4481281A JPS57158832A JP S57158832 A JPS57158832 A JP S57158832A JP 56044812 A JP56044812 A JP 56044812A JP 4481281 A JP4481281 A JP 4481281A JP S57158832 A JPS57158832 A JP S57158832A
- Authority
- JP
- Japan
- Prior art keywords
- light
- information
- panel
- eliminating
- bias
- 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
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To write information by irradiating both information light and bias light to an image memory panel obtd. by arranging optically finally stable elements in the form of a matrix, to conduct reproduction by irradiating only bias light, and to erase the information by eliminating the bias light. CONSTITUTION:A GaAs layer 1 having about 1-5mum thickness and GaAlAs layers 2 having about 0.1-0.5mum thickness are formed on a GaAs substrate 4 by epitaxial growth, the substrate 4 is selectively etched in the form of a matrix, and dielectric reflecting films 3 are attached to both sides of the panel to fabricate an image memory panel 10. The level of bias light 12 is regulated to a level where 2 stable output light conditions exist to certain input light. The part of the panel 10 irradiated with both information light 11 passed through an image information plate 7 and bias light 12 has an increased quantity of output light, and this state is maintained even after eliminating the light 11. After the information is erased by eliminating the remaining light 12, recording can be repeated in a similar process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56044812A JPS57158832A (en) | 1981-03-27 | 1981-03-27 | Image memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56044812A JPS57158832A (en) | 1981-03-27 | 1981-03-27 | Image memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57158832A true JPS57158832A (en) | 1982-09-30 |
Family
ID=12701836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56044812A Pending JPS57158832A (en) | 1981-03-27 | 1981-03-27 | Image memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57158832A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5999855A (en) * | 1982-11-29 | 1984-06-08 | Nec Corp | Time division optical exchange |
JPS59107675A (en) * | 1982-12-10 | 1984-06-21 | Nec Corp | Time division optical exchange |
JPS59116624A (en) * | 1982-12-23 | 1984-07-05 | Toshiba Corp | Photoelectric interface circuit |
JPH01112225A (en) * | 1987-10-23 | 1989-04-28 | Nec Corp | Optical arithmetic unit |
JPH01164930A (en) * | 1987-12-21 | 1989-06-29 | Nippon Telegr & Teleph Corp <Ntt> | Optical register memory array |
-
1981
- 1981-03-27 JP JP56044812A patent/JPS57158832A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5999855A (en) * | 1982-11-29 | 1984-06-08 | Nec Corp | Time division optical exchange |
JPS59107675A (en) * | 1982-12-10 | 1984-06-21 | Nec Corp | Time division optical exchange |
JPH0439837B2 (en) * | 1982-12-10 | 1992-06-30 | ||
JPS59116624A (en) * | 1982-12-23 | 1984-07-05 | Toshiba Corp | Photoelectric interface circuit |
JPH01112225A (en) * | 1987-10-23 | 1989-04-28 | Nec Corp | Optical arithmetic unit |
JPH01164930A (en) * | 1987-12-21 | 1989-06-29 | Nippon Telegr & Teleph Corp <Ntt> | Optical register memory array |
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