FR2339917B2 - - Google Patents
Info
- Publication number
- FR2339917B2 FR2339917B2 FR7602816A FR7602816A FR2339917B2 FR 2339917 B2 FR2339917 B2 FR 2339917B2 FR 7602816 A FR7602816 A FR 7602816A FR 7602816 A FR7602816 A FR 7602816A FR 2339917 B2 FR2339917 B2 FR 2339917B2
- Authority
- FR
- France
- 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
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
- G01V8/22—Detecting, e.g. by using light barriers using multiple transmitters or receivers using reflectors
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)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7602816A FR2339917A2 (fr) | 1976-02-02 | 1976-02-02 | Dispositif optique pour barriere optique de securite |
| IT1908977A IT1077559B (it) | 1976-02-02 | 1977-01-05 | Dispositivo ottico per barriera ottica di sicurezza |
| DE19772700819 DE2700819A1 (de) | 1976-02-02 | 1977-01-11 | Optisches geraet fuer schutz-lichtschranken |
| GB408977A GB1577638A (en) | 1976-02-02 | 1977-02-01 | Optical device for an optical safety barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7602816A FR2339917A2 (fr) | 1976-02-02 | 1976-02-02 | Dispositif optique pour barriere optique de securite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2339917A2 FR2339917A2 (fr) | 1977-08-26 |
| FR2339917B2 true FR2339917B2 (it) | 1979-08-24 |
Family
ID=9168647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7602816A Granted FR2339917A2 (fr) | 1976-02-02 | 1976-02-02 | Dispositif optique pour barriere optique de securite |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2700819A1 (it) |
| FR (1) | FR2339917A2 (it) |
| GB (1) | GB1577638A (it) |
| IT (1) | IT1077559B (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3621961A1 (de) * | 1986-07-01 | 1988-01-14 | Wenglorz Sensoric Gmbh | Reflexlichtschranke zur beruehrungslosen nachfuehrung eines geraetes |
| GB2238379A (en) * | 1989-10-13 | 1991-05-29 | John Trett | Obstruction detection apparatus |
-
1976
- 1976-02-02 FR FR7602816A patent/FR2339917A2/fr active Granted
-
1977
- 1977-01-05 IT IT1908977A patent/IT1077559B/it active
- 1977-01-11 DE DE19772700819 patent/DE2700819A1/de not_active Withdrawn
- 1977-02-01 GB GB408977A patent/GB1577638A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2700819A1 (de) | 1977-08-04 |
| GB1577638A (en) | 1980-10-29 |
| FR2339917A2 (fr) | 1977-08-26 |
| IT1077559B (it) | 1985-05-04 |