JPS5727214A - Graded lens and optical transmission line using said lens - Google Patents
Graded lens and optical transmission line using said lensInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Lenses (AREA)
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.
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 transmission 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)
| 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 | Coupling mechanism between 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 | Efficient and compact head-mounted display system |
-
1980
- 1980-07-28 JP JP55103397A patent/JPS6057048B2/en not_active Expired
Cited By (7)
| 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 | Coupling mechanism between 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 | Efficient and compact head-mounted display system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6057048B2 (en) | 1985-12-13 |
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