FR2335824B1 - - Google Patents
Info
- Publication number
- FR2335824B1 FR2335824B1 FR7637489A FR7637489A FR2335824B1 FR 2335824 B1 FR2335824 B1 FR 2335824B1 FR 7637489 A FR7637489 A FR 7637489A FR 7637489 A FR7637489 A FR 7637489A FR 2335824 B1 FR2335824 B1 FR 2335824B1
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/412—Index profiling of optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/641,697 US4027977A (en) | 1975-12-17 | 1975-12-17 | Method and apparatus for determining ratio of core radius to cladding radius in clad optical fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2335824A1 FR2335824A1 (fr) | 1977-07-15 |
| FR2335824B1 true FR2335824B1 (US06420036-20020716-C00037.png) | 1981-12-24 |
Family
ID=24573490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7637489A Granted FR2335824A1 (fr) | 1975-12-17 | 1976-12-13 | Procede et appareil de determination d'un parametre d'une fibre optique |
Country Status (9)
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4168907A (en) * | 1977-12-30 | 1979-09-25 | Bell Telephone Laboratories, Incorporated | Method for inspecting transparent rods |
| US4227806A (en) * | 1978-10-16 | 1980-10-14 | Western Electric Company, Inc. | Methods for non-destructively determining parameters of an optical fiber preform |
| JPS5724600U (US06420036-20020716-C00037.png) * | 1980-07-16 | 1982-02-08 | ||
| US4492463A (en) * | 1982-03-29 | 1985-01-08 | At&T Bell Laboratories | Method for inspecting multilayer transparent rods |
| JPS5930870U (ja) * | 1982-08-23 | 1984-02-25 | 三菱重工業株式会社 | 落下容器保護構造 |
| US4650322A (en) * | 1984-09-07 | 1987-03-17 | The Board Of Trustees Of The Leland Standford, Jr. University | Method and means for high resolution measurement of fiber diameter |
| FR2572805A1 (fr) * | 1984-11-06 | 1986-05-09 | Thomson Csf | Procede de mesure du centrage d'un barreau cylindrique dans un revetement transparent cylindrique et dispositif de mise en oeuvre |
| FR2584180A2 (fr) * | 1985-06-28 | 1987-01-02 | Thomson Csf | Dispositif de mesure du centrage d'un barreau cylindrique dans un revetement transparent cylindrique |
| US4662743A (en) * | 1985-11-01 | 1987-05-05 | Sumitomo Electric Research Triangle, Inc. | Method of measuring the geometry of optical fibers |
| AU585728B2 (en) * | 1986-08-15 | 1989-06-22 | Sumitomo Electric Industries, Ltd. | Method and apparatus of measuring outer diameter and structure of optical fiber |
| US5176731A (en) * | 1987-06-10 | 1993-01-05 | U.S. Philips Corp. | Device for performing measurements on a transparent object, method of manufacturing a fiber and fiber manufactured by means of said method |
| US4952226A (en) * | 1989-02-27 | 1990-08-28 | American Telephone And Telegraph Company | Lightguide coating control |
| US4973343A (en) * | 1989-06-02 | 1990-11-27 | At&T Bell Laboratories | Optical fiber coating control apparatus |
| US4957526A (en) * | 1989-06-02 | 1990-09-18 | At&T Bell Laboratories | Optical fiber coating control process |
| FR2651312B1 (fr) * | 1989-08-25 | 1992-01-17 | France Etat | Procede et dispositif de caracterisation geometrique de tubes transparents. |
| US5309221A (en) * | 1991-12-31 | 1994-05-03 | Corning Incorporated | Measurement of fiber diameters with high precision |
| CA2083969A1 (en) * | 1991-12-31 | 1993-07-01 | Leslie James Button | Measurement of fiber diameters and detection of defects |
| US5283628A (en) * | 1991-12-31 | 1994-02-01 | Corning Incorporated | Method for measuring diameters of non-circular fibers |
| EP0905477A3 (en) * | 1997-09-25 | 2000-08-09 | Corning Incorporated | Methods and apparatus for detecting core/cladding interfaces in optical waveguide blanks |
| SE523329C2 (sv) * | 2000-06-20 | 2004-04-13 | Ericsson Telefon Ab L M | Bestämning av optisk fibertyp |
| FR2852389B1 (fr) * | 2003-03-12 | 2005-05-13 | Commissariat Energie Atomique | Procede de mesure d'objets tridimensionnels par ombroscopie optique a une seule vue |
| JP4923255B2 (ja) * | 2006-11-07 | 2012-04-25 | 国立大学法人横浜国立大学 | 円柱体の直径、屈折率、中心軸間距離及び入射光軸と間隔のなす角の測定方法およびこれを用いた装置 |
| CN102297655B (zh) * | 2010-06-24 | 2013-04-03 | 上海电缆研究所 | 光纤端面双向定位和同步测试的测试方法 |
| US10901228B2 (en) * | 2017-06-27 | 2021-01-26 | The Boeing Company | Cavity with curved beam replicator and method of determining a characteristic of a medium therein |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797939A (en) * | 1968-08-09 | 1974-03-19 | T Pryor | Diffractographic measurement of profile |
| US3659950A (en) * | 1969-07-14 | 1972-05-02 | Iris Corp | Laser apparatus for detecting the size and form of filamentary material by measuring diffracted light |
| US3709610A (en) * | 1970-05-20 | 1973-01-09 | Holobeam | Method and apparatus for measuring and controlling the thickness of a filament or the like |
| US3879128A (en) * | 1973-08-15 | 1975-04-22 | Bell Telephone Labor Inc | Method and apparatus for measuring the refractive index and diameter of optical fibers |
| US3925733A (en) * | 1974-05-24 | 1975-12-09 | Us Navy | Maximum pulse density detector |
| US3982816A (en) * | 1974-06-21 | 1976-09-28 | Western Electric Company, Inc. | Method for measuring the parameters of optical fibers |
-
1975
- 1975-12-17 US US05/641,697 patent/US4027977A/en not_active Expired - Lifetime
-
1976
- 1976-11-29 CA CA266,824A patent/CA1107493A/en not_active Expired
- 1976-12-06 SE SE7613667A patent/SE416498B/xx unknown
- 1976-12-13 FR FR7637489A patent/FR2335824A1/fr active Granted
- 1976-12-14 BE BE173242A patent/BE849386A/xx unknown
- 1976-12-14 DE DE2656520A patent/DE2656520C3/de not_active Expired
- 1976-12-15 NL NLAANVRAGE7613917,A patent/NL171928C/xx not_active IP Right Cessation
- 1976-12-15 GB GB52422/76A patent/GB1549630A/en not_active Expired
- 1976-12-16 JP JP51150427A patent/JPS5274363A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE7613667L (sv) | 1977-06-18 |
| CA1107493A (en) | 1981-08-25 |
| SE416498B (sv) | 1981-01-05 |
| JPS5274363A (en) | 1977-06-22 |
| NL7613917A (nl) | 1977-06-21 |
| BE849386A (fr) | 1977-04-01 |
| NL171928B (nl) | 1983-01-03 |
| JPS5638898B2 (US06420036-20020716-C00037.png) | 1981-09-09 |
| DE2656520B2 (de) | 1980-09-18 |
| FR2335824A1 (fr) | 1977-07-15 |
| GB1549630A (en) | 1979-08-08 |
| US4027977A (en) | 1977-06-07 |
| DE2656520A1 (de) | 1977-06-30 |
| DE2656520C3 (de) | 1981-07-23 |
| NL171928C (nl) | 1983-06-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |