JPS5521283B2 - - Google Patents
Info
- Publication number
- JPS5521283B2 JPS5521283B2 JP4390874A JP4390874A JPS5521283B2 JP S5521283 B2 JPS5521283 B2 JP S5521283B2 JP 4390874 A JP4390874 A JP 4390874A JP 4390874 A JP4390874 A JP 4390874A JP S5521283 B2 JPS5521283 B2 JP S5521283B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Image Input (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Integrated Circuits (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4390874A JPS5521283B2 (en) | 1974-04-20 | 1974-04-20 | |
| US05/746,830 US4113353A (en) | 1974-04-20 | 1976-12-02 | Information processing optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4390874A JPS5521283B2 (en) | 1974-04-20 | 1974-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50137754A JPS50137754A (en) | 1975-11-01 |
| JPS5521283B2 true JPS5521283B2 (en) | 1980-06-09 |
Family
ID=12676802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4390874A Expired JPS5521283B2 (en) | 1974-04-20 | 1974-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5521283B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549091A (en) * | 1978-10-04 | 1980-04-08 | Hitachi Ltd | Information coding circuit |
| JPS5581309A (en) * | 1978-12-15 | 1980-06-19 | Matsushita Electric Ind Co Ltd | Input device |
| JPS55146579A (en) * | 1979-04-28 | 1980-11-14 | Sumitomo Electric Ind Ltd | Tablet for character and graphic form input unit |
| JPS59127142A (en) * | 1983-01-11 | 1984-07-21 | Nec Corp | Optical touch sensor |
| JP2571694B2 (en) * | 1987-08-21 | 1997-01-16 | 大成建設 株式会社 | Light receiving position detecting device using optical fiber for level survey staff |
| JP4412665B2 (en) * | 2005-06-14 | 2010-02-10 | 日本電信電話株式会社 | Variable optical multiplexer / demultiplexer |
| GB2459702B (en) * | 2008-05-01 | 2012-07-11 | Peter Richard Nelson | Waveguide structure for use in a position sensor, a position sensor and position measurement system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3256767A (en) * | 1963-02-04 | 1966-06-21 | Optics Technology Inc | Fibre optics code apparatus |
| US3609759A (en) * | 1969-12-31 | 1971-09-28 | Emerson Electric Co | Photoelectric keyboard encoder |
-
1974
- 1974-04-20 JP JP4390874A patent/JPS5521283B2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3256767A (en) * | 1963-02-04 | 1966-06-21 | Optics Technology Inc | Fibre optics code apparatus |
| US3609759A (en) * | 1969-12-31 | 1971-09-28 | Emerson Electric Co | Photoelectric keyboard encoder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50137754A (en) | 1975-11-01 |