JPS6211297B2 - - Google Patents
Info
- Publication number
- JPS6211297B2 JPS6211297B2 JP53089103A JP8910378A JPS6211297B2 JP S6211297 B2 JPS6211297 B2 JP S6211297B2 JP 53089103 A JP53089103 A JP 53089103A JP 8910378 A JP8910378 A JP 8910378A JP S6211297 B2 JPS6211297 B2 JP S6211297B2
- Authority
- JP
- Japan
- Prior art keywords
- optical transmission
- optical
- detection
- light
- information
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 77
- 238000001514 detection method Methods 0.000 claims description 68
- 230000005540 biological transmission Effects 0.000 claims description 58
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/85—Protection from unauthorised access, e.g. eavesdrop protection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Measuring Volume Flow (AREA)
- Examining Or Testing Airtightness (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8910378A JPS5516551A (en) | 1978-07-21 | 1978-07-21 | Information detection system by photo transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8910378A JPS5516551A (en) | 1978-07-21 | 1978-07-21 | Information detection system by photo transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5516551A JPS5516551A (en) | 1980-02-05 |
| JPS6211297B2 true JPS6211297B2 (enrdf_load_stackoverflow) | 1987-03-11 |
Family
ID=13961542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8910378A Granted JPS5516551A (en) | 1978-07-21 | 1978-07-21 | Information detection system by photo transmitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5516551A (enrdf_load_stackoverflow) |
-
1978
- 1978-07-21 JP JP8910378A patent/JPS5516551A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5516551A (en) | 1980-02-05 |
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