JPS6411204A - Light guide - Google Patents
Light guideInfo
- Publication number
- JPS6411204A JPS6411204A JP62166614A JP16661487A JPS6411204A JP S6411204 A JPS6411204 A JP S6411204A JP 62166614 A JP62166614 A JP 62166614A JP 16661487 A JP16661487 A JP 16661487A JP S6411204 A JPS6411204 A JP S6411204A
- Authority
- JP
- Japan
- Prior art keywords
- optical fibers
- fiber layer
- light guide
- optical fiber
- optical
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 abstract 14
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
PURPOSE:To obtain a light guide which has small variance in brightness between its center part and peripheral part by arranging optical fibers which differ in opening angle and form respective layers almost concentrically in opening angle increasing order from the center side. CONSTITUTION:An optical fiber layer consisting of optical fibers 21 of a light guide 20 and an optical fiber layer consisting of optical fibers 22 are arranged almost concentrically so that the opening angle of the optical fibers 22 constituting the optical fiber layer on the center side is smaller than that of the optical fibers 21 constituting the optical fiber layer on the peripheral side. The opening angles of the optical fibers 21 and 22 are determined by their materials, so the center side optical fibers 22 and peripheral optical fibers 21 are made of different materials. Further, the arrangements of the optical fibers 21 and optical fibers 22 on a photodetection side are varied properly to vary a brightness distribution. Consequently, lighting which has a uniform brightness distribution and is free of an irregularity of light is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166614A JPS6411204A (en) | 1987-07-03 | 1987-07-03 | Light guide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166614A JPS6411204A (en) | 1987-07-03 | 1987-07-03 | Light guide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6411204A true JPS6411204A (en) | 1989-01-13 |
Family
ID=15834573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62166614A Pending JPS6411204A (en) | 1987-07-03 | 1987-07-03 | Light guide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6411204A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018097031A (en) * | 2016-12-08 | 2018-06-21 | 株式会社住田光学ガラス | Optical fiber bundle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5727206A (en) * | 1980-07-28 | 1982-02-13 | Sumitomo Electric Ind Ltd | Bundle fiber |
-
1987
- 1987-07-03 JP JP62166614A patent/JPS6411204A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5727206A (en) * | 1980-07-28 | 1982-02-13 | Sumitomo Electric Ind Ltd | Bundle fiber |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018097031A (en) * | 2016-12-08 | 2018-06-21 | 株式会社住田光学ガラス | Optical fiber bundle |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6457206A (en) | Surface lighting apparatus | |
EP0273311A3 (en) | Lighting apparatus and method | |
FR2569864B1 (en) | OPTICAL FIBER LIGHT EMITTING AND DISTRIBUTION EQUIPMENT, PARTICULARLY FOR ONLINE SPECTROPHOTOMETER CONTROL USING A DOUBLE BEAM SPECTROPHOTOMETER | |
CA2086443A1 (en) | Lighted telephone dial | |
JPS6465506A (en) | Optical attenuator | |
IT7922136V0 (en) | OPTICAL ILLUMINATION DEVICE FORMED OF OPTICAL FIBERS WITH A SLOTTED COVER FOR THE DISPERSION OF LIGHT. | |
AU8031791A (en) | Optical fiber composite material bobbin with grooved base layer | |
JPS57100930A (en) | Preparation of base material for optical fiber | |
JPS6411204A (en) | Light guide | |
JPS5691482A (en) | Photoelectric converter device and light fiber combining system device | |
JPS56151905A (en) | Optical mixer | |
US20020048176A1 (en) | Cusp illuminator and flat panel illuminator made thereby | |
EP0392022A4 (en) | Surface light-emitting ornamental device using optical fibers | |
JPS6445003A (en) | Panel lighting appliance | |
JPS6442821A (en) | Lighting device | |
JPS5379553A (en) | Light distributor | |
JPS6445002A (en) | Panel lighting appliance | |
JPS6438739A (en) | Focusing plate | |
JPS57109904A (en) | Optical switch for remote control | |
JPS56167106A (en) | Optical switch | |
JPS5631270A (en) | Transmission original illuminating unit | |
JPS5587105A (en) | Photo switch | |
EP0482207A4 (en) | Laminated organic nonlinear optical crystal and production thereof | |
JPS5394472A (en) | Cover for lighting fixture | |
JPS6336566Y2 (en) |