JPS5652713A - Optical fiber connecting terminal - Google Patents

Optical fiber connecting terminal

Info

Publication number
JPS5652713A
JPS5652713A JP12889779A JP12889779A JPS5652713A JP S5652713 A JPS5652713 A JP S5652713A JP 12889779 A JP12889779 A JP 12889779A JP 12889779 A JP12889779 A JP 12889779A JP S5652713 A JPS5652713 A JP S5652713A
Authority
JP
Japan
Prior art keywords
optical fiber
spherical lens
refractive index
face
medium
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.)
Granted
Application number
JP12889779A
Other languages
Japanese (ja)
Other versions
JPS5858644B2 (en
Inventor
Hajime Suzuki
Tadahiro Nagayama
Masaji Takahashi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP54128897A priority Critical patent/JPS5858644B2/en
Publication of JPS5652713A publication Critical patent/JPS5652713A/en
Publication of JPS5858644B2 publication Critical patent/JPS5858644B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G02B6/4203—Optical features
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To eliminate the need for highly accurate position alignment by making the refractive index of a medium of a spherical lens twice the refractive index of the medium on the outer side thereof and allowing the end face of an optical fiber to closely contact the surface of the lens in such a manner that the central axis of the optical fiber is aligned to the center of said spherical lens. CONSTITUTION:Selecting the refractive index of a medium of a spherical lens 5 at twice the refractive index of the medium on the outer side (parallel ray 3 side) of the spherical lens 5, makes it possible to radiate the light of a spot light source incident from one point on the surface of the spherical lens 5 as the parallel rays parallel to the line connecting the incident point and the center of the sphericl lens 5. Since the outside diameter of an optical fiber is as small as around 100mum, the light radiated from the end face of the optical fiber may be regarded as a spot light source; therefore, the greater part of the light radiated from the optical fiber 1 of which the end face is in contact with the surface of the spherical lens 5 is converted to the parallel rays parallel to the line connecting the end face of the optical fiber 1 and the center of the spherical lens 5.
JP54128897A 1979-10-08 1979-10-08 Optical fiber connection terminal Expired JPS5858644B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54128897A JPS5858644B2 (en) 1979-10-08 1979-10-08 Optical fiber connection terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54128897A JPS5858644B2 (en) 1979-10-08 1979-10-08 Optical fiber connection terminal

Publications (2)

Publication Number Publication Date
JPS5652713A true JPS5652713A (en) 1981-05-12
JPS5858644B2 JPS5858644B2 (en) 1983-12-26

Family

ID=14996048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54128897A Expired JPS5858644B2 (en) 1979-10-08 1979-10-08 Optical fiber connection terminal

Country Status (1)

Country Link
JP (1) JPS5858644B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150954A (en) * 1984-01-13 1985-08-08 Toyoda Mach Works Ltd Grinding method
JPS61265268A (en) * 1985-05-21 1986-11-25 Mazda Motor Corp Grinding abnormality detection device
JPS61201007U (en) * 1985-06-06 1986-12-16
US4632505A (en) * 1983-10-11 1986-12-30 The Deustsch Company Electronic Components Division Optical fiber connector
JP2002243991A (en) * 2001-02-15 2002-08-28 Nippon Sheet Glass Co Ltd Coupled optical system and optical device using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358254A (en) * 1976-11-05 1978-05-26 Mitsubishi Electric Corp Optical fiber with spherical lens body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358254A (en) * 1976-11-05 1978-05-26 Mitsubishi Electric Corp Optical fiber with spherical lens body

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632505A (en) * 1983-10-11 1986-12-30 The Deustsch Company Electronic Components Division Optical fiber connector
JPS60150954A (en) * 1984-01-13 1985-08-08 Toyoda Mach Works Ltd Grinding method
JPS61265268A (en) * 1985-05-21 1986-11-25 Mazda Motor Corp Grinding abnormality detection device
JPS61201007U (en) * 1985-06-06 1986-12-16
JPH0442803Y2 (en) * 1985-06-06 1992-10-09
JP2002243991A (en) * 2001-02-15 2002-08-28 Nippon Sheet Glass Co Ltd Coupled optical system and optical device using the same

Also Published As

Publication number Publication date
JPS5858644B2 (en) 1983-12-26

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