EP0249934A3
Optical fiber device
Abstract
An optical fiber device (31) comprises a core (35) and a cladding (33), the core (35) being made of an optical material having a refractive index n1, and the cladding being made of an optical material having a refractive index n2, the end (34) of the optical fiber from which light radiates forming a plane that is inclined to the fiber axis by an angle θ, a light reflective layer being formed at least on the outer periphery of said radiating end, and the two refractive indices n1 and n2 satisfying the following relation (1):

Term
Term ended
Projected expiry passed 16 June 2007, 19.3 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
2 sheets
Sheet 1 Sheet 2
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| US3402000A | Cites | United States of America | Y | Search report |
| US4045133A | Cites | United States of America | Y | Search report |
| US4208096A | Cites | United States of America | AD | Search report |
| US4390589A | Cites | United States of America | A | Search report |
| US454704A | Cites | United States of America | A | Search report |
| US4647152A | Cites | United States of America | XP | Search report |
4 priority claims, no other members on record
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 9192586 | Japan | – | |
| 9192586 | Japan | U | |
| 9192586 | – | – | – |
| JP19860091925U | – | – | – |
10 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Application refused18R | 18R | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN REFUSEDSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0249934
- Publication, DOCDB
- 0249934
- Publication, EPODOC
- EP0249934
- Application
- 87108628
- Application, DOCDB
- 87108628
- Application, EPODOC
- EP19870108628
Titles3
- English
- Optical fiber device
- German
- Optischer Fibermechanismus
- French
- Dispositif à fibre optique
Classification
- CPC, 4
- G02B6/262
- G02B6/02
- G02B6/06
- G02B6/08
- IPC, 5
- G02B6 02
- G02B6 04
- G02B6 06
- G02B6 08
- G02B6 26
Designated states5
- Contracting states, 5
- Belgium
- Germany
- France
- United Kingdom
- Italy