JPH0350995B2 - - Google Patents
Info
- Publication number
- JPH0350995B2 JPH0350995B2 JP57181348A JP18134882A JPH0350995B2 JP H0350995 B2 JPH0350995 B2 JP H0350995B2 JP 57181348 A JP57181348 A JP 57181348A JP 18134882 A JP18134882 A JP 18134882A JP H0350995 B2 JPH0350995 B2 JP H0350995B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- light emitting
- signal
- output
- emitting diode
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000012015 optical character recognition Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Controlling Sheets Or Webs (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57181348A JPS5970991A (ja) | 1982-10-18 | 1982-10-18 | 調光装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57181348A JPS5970991A (ja) | 1982-10-18 | 1982-10-18 | 調光装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5970991A JPS5970991A (ja) | 1984-04-21 |
| JPH0350995B2 true JPH0350995B2 (US06650917-20031118-M00005.png) | 1991-08-05 |
Family
ID=16099132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57181348A Granted JPS5970991A (ja) | 1982-10-18 | 1982-10-18 | 調光装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5970991A (US06650917-20031118-M00005.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100074622A1 (en) * | 2007-04-06 | 2010-03-25 | Koninklijke Philips Electronics N.V. | Line-of-sight optical detection system, and communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50161268A (US06650917-20031118-M00005.png) * | 1974-06-17 | 1975-12-27 | ||
| JPS5642633U (US06650917-20031118-M00005.png) * | 1979-09-07 | 1981-04-18 | ||
| JPS5729985A (en) * | 1980-07-31 | 1982-02-18 | Canon Inc | Detection level adjusting device |
-
1982
- 1982-10-18 JP JP57181348A patent/JPS5970991A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50161268A (US06650917-20031118-M00005.png) * | 1974-06-17 | 1975-12-27 | ||
| JPS5642633U (US06650917-20031118-M00005.png) * | 1979-09-07 | 1981-04-18 | ||
| JPS5729985A (en) * | 1980-07-31 | 1982-02-18 | Canon Inc | Detection level adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5970991A (ja) | 1984-04-21 |
