GB1418429A - Fibre optic devices - Google Patents

Fibre optic devices

Info

Publication number
GB1418429A
GB1418429A GB1846774A GB1846774A GB1418429A GB 1418429 A GB1418429 A GB 1418429A GB 1846774 A GB1846774 A GB 1846774A GB 1846774 A GB1846774 A GB 1846774A GB 1418429 A GB1418429 A GB 1418429A
Authority
GB
United Kingdom
Prior art keywords
fibre optic
april
glass
light absorbing
optic devices
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
Application number
GB1846774A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
American Optical Corp
Original Assignee
American Optical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by American Optical Corp filed Critical American Optical Corp
Publication of GB1418429A publication Critical patent/GB1418429A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination
    • G02B23/2469—Illumination using optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/10—Non-chemical treatment
    • C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
    • C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • C03C25/1061—Inorganic coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03694—Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Astronomy & Astrophysics (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

1418429 Glass fibre optic devices AMERICAN OPTICAL CORP 26 April 1974 [26 April 1973] 18467/74 Heading C1M [Also in Division G2] In a flexible glass fibre optic image-conducting conduit comprising a multiplicity of coresheath optical fibres, of relatively higher and lower refractive index respectively, which are juxtaposed and fixedly connected together throughout relatively short sections at each end by a matrix glass, the matrix glass is light absorbing. Preferably the fibrescope is prepared as in Specification 1,337,230, and the leachable matrix glass has manganese oxide as the light absorbing constituent. A suggested composition in percentages by weight is given: La 2 O 3 7À6; B 2 O 3 44À65; BaO 42À75 and MnO 2 5À0.
GB1846774A 1973-04-26 1974-04-26 Fibre optic devices Expired GB1418429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35460073A 1973-04-26 1973-04-26

Publications (1)

Publication Number Publication Date
GB1418429A true GB1418429A (en) 1975-12-17

Family

ID=23394083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1846774A Expired GB1418429A (en) 1973-04-26 1974-04-26 Fibre optic devices

Country Status (3)

Country Link
JP (1) JPS5014354A (en)
DE (1) DE2418781C2 (en)
GB (1) GB1418429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486663A1 (en) * 1980-07-14 1982-01-15 American Optical Corp FLEXIBLE OPTICAL CONDUIT AND METHOD OF MANUFACTURING THE SAME

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635656A1 (en) * 1976-08-07 1978-02-09 Jenaer Glaswerk Schott & Gen FIBER OPTIC SYSTEMS WITH CROSS-TALK EFFECTS
FR2517835A1 (en) * 1981-12-03 1983-06-10 Fort Francois IMPROVEMENTS TO IMAGE CONDUCTORS
JP3184219B2 (en) * 1991-09-27 2001-07-09 康博 小池 Light scattering light guide, manufacturing method thereof and applied optical device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1267387A (en) * 1968-10-01 1972-03-15 Nippon Selfoc Co Ltd Light-conducting glass fibres having a peripheral light-absorbent layer
DE2143895C3 (en) * 1971-08-28 1981-05-27 American Optical Corp., Southbridge, Mass. Process for the production of a flexible fiber optic bundle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486663A1 (en) * 1980-07-14 1982-01-15 American Optical Corp FLEXIBLE OPTICAL CONDUIT AND METHOD OF MANUFACTURING THE SAME

Also Published As

Publication number Publication date
JPS5014354A (en) 1975-02-14
DE2418781C2 (en) 1982-10-21
DE2418781A1 (en) 1974-11-21

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee