JPS5727214A - Graded lens and optical transmission line using said lens - Google Patents

Graded lens and optical transmission line using said lens

Info

Publication number
JPS5727214A
JPS5727214A JP10339780A JP10339780A JPS5727214A JP S5727214 A JPS5727214 A JP S5727214A JP 10339780 A JP10339780 A JP 10339780A JP 10339780 A JP10339780 A JP 10339780A JP S5727214 A JPS5727214 A JP S5727214A
Authority
JP
Japan
Prior art keywords
refractive index
lens
optical fiber
small
center
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
JP10339780A
Other languages
Japanese (ja)
Other versions
JPS6057048B2 (en
Inventor
Noritaka Kurauchi
Kenichi Yoshida
Kozo Ono
Yoshikazu Nishiwaki
Koichi Tsuno
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP55103397A priority Critical patent/JPS6057048B2/en
Publication of JPS5727214A publication Critical patent/JPS5727214A/en
Publication of JPS6057048B2 publication Critical patent/JPS6057048B2/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

Abstract

PURPOSE:To raise a coupling efficiency to an optical fiber and also to widen the field of view, by constituting so that a refractive index, and a refractive index difference between the center part and the outside circumferential part, of a graded lens becomes large in the former case and small in the latter case, respectively, gradually in the direction to an optical axis. CONSTITUTION:A refractive index distribution of a graded lens 1 to whose one end a single mode transmission optical fiber 2 has been made to adhere is lowered gradually toward the outside circumferential part in the diameter direction against the center, and also in the direction going along in parallel with an optical axis 3, the refractive index of one end side is always higher than that of the other end side to which a light beam 4 is made incident, and also as for a refractive index difference DELTAn between the center and the outside circumferential side in the diameter direction, that of the other end is larger than that of one end. Accordingly, the light beam 4 which has been made incident from the other end by an incident angle being theta2 becomes gradually small in its amplitude, and is projected from one end by an angle of theta1 which is smaller than theta2, therefore, photodetection is executed sufficiently by an optical fiber whose aperture number is small, as well.
JP55103397A 1980-07-28 1980-07-28 graded lens Expired JPS6057048B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55103397A JPS6057048B2 (en) 1980-07-28 1980-07-28 graded lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55103397A JPS6057048B2 (en) 1980-07-28 1980-07-28 graded lens

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP60118928A Division JPS60258507A (en) 1985-06-03 1985-06-03 Optical tramsmission line

Publications (2)

Publication Number Publication Date
JPS5727214A true JPS5727214A (en) 1982-02-13
JPS6057048B2 JPS6057048B2 (en) 1985-12-13

Family

ID=14352919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55103397A Expired JPS6057048B2 (en) 1980-07-28 1980-07-28 graded lens

Country Status (1)

Country Link
JP (1) JPS6057048B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02216111A (en) * 1989-02-17 1990-08-29 Nec Corp Semiconductor laser module
JP2004046048A (en) * 2002-07-15 2004-02-12 Moritex Corp Combining mechanism for laser diode and single mode fiber
JP2014235348A (en) * 2013-06-03 2014-12-15 ニスカ株式会社 Rod lens array and image sensor
JP2017187613A (en) * 2016-04-05 2017-10-12 東洋製罐グループホールディングス株式会社 Optical fiber with lens and optical coupler
CN111465888A (en) * 2017-10-16 2020-07-28 奥里姆光学有限公司 High-efficient compact head-mounted display system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02216111A (en) * 1989-02-17 1990-08-29 Nec Corp Semiconductor laser module
JP2004046048A (en) * 2002-07-15 2004-02-12 Moritex Corp Combining mechanism for laser diode and single mode fiber
JP2014235348A (en) * 2013-06-03 2014-12-15 ニスカ株式会社 Rod lens array and image sensor
JP2017187613A (en) * 2016-04-05 2017-10-12 東洋製罐グループホールディングス株式会社 Optical fiber with lens and optical coupler
WO2017175493A1 (en) * 2016-04-05 2017-10-12 東洋製罐グループホールディングス株式会社 Lens-attached optical fiber and optical coupler
US10698161B2 (en) 2016-04-05 2020-06-30 Toyo Seikan Group Holdings, Ltd. Optical fiber with lens and optical coupler
CN111465888A (en) * 2017-10-16 2020-07-28 奥里姆光学有限公司 High-efficient compact head-mounted display system

Also Published As

Publication number Publication date
JPS6057048B2 (en) 1985-12-13

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