JPH01120609U - - Google Patents
Info
- Publication number
- JPH01120609U JPH01120609U JP1461388U JP1461388U JPH01120609U JP H01120609 U JPH01120609 U JP H01120609U JP 1461388 U JP1461388 U JP 1461388U JP 1461388 U JP1461388 U JP 1461388U JP H01120609 U JPH01120609 U JP H01120609U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical fiber
- fiber bundle
- incident
- guide plate
- 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 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
第１図は本考案による光検出装置を示す分解斜
視図であり、第２図はその縦断面図である。第３
図は口金により保持された光フアイバ束の光入射
端面を示す図である。第４図は本考案による光検
出装置を備えた太陽光採光装置の概略構成を示す
図である。第５図〜第８図は本考案による光検出
装置における光検出動作を説明するための図であ
る。第９図は従来の光検出装置の受光部を示す縦
断面図である。第１０図は従来の光検出装置にお
ける光検出を説明するための図である。
２：光フアイバ束、３：光入射端面、４：口金
、６：透明導光板、８：貫通孔、１０：固定具、
１２：光フアイバ、１２ａ〜１２ｄ：光量検出用
光フアイバ、３２：フレネルレンズ、３４ａ〜３
４ｄ：光検出器。
FIG. 1 is an exploded perspective view showing a photodetector according to the present invention, and FIG. 2 is a longitudinal sectional view thereof. Third
The figure shows the light incident end face of the optical fiber bundle held by the base. FIG. 4 is a diagram showing a schematic configuration of a sunlight lighting device equipped with a photodetection device according to the present invention. 5 to 8 are diagrams for explaining the photodetection operation in the photodetection device according to the present invention. FIG. 9 is a longitudinal sectional view showing a light receiving section of a conventional photodetector. FIG. 10 is a diagram for explaining photodetection in a conventional photodetector. 2: Optical fiber bundle, 3: Light incident end face, 4: Base, 6: Transparent light guide plate, 8: Through hole, 10: Fixture,
12: Optical fiber, 12a-12d: Optical fiber for light amount detection, 32: Fresnel lens, 34a-3
4d: Photodetector.
Claims (1)
させるに際し該収束光の入射位置のずれを検出す
る装置において、上記光フアイバ束の光入射端部
側にこれとほぼ垂直に透明導光板が配置されてお
り、該透明導光板には厚さ方向の貫通孔が形成さ
れており、該貫通孔は少なくとも上記光フアイバ
束の光入射端面より光入射側の部分が光拡散性を
有し、上記光フアイバ束の光入射端面における周
辺部の複数の光フアイバの他端部から検出される
光量に基づき光入射位置のずれを検出するもので
あることを特徴とする、光検出装置。 In a device for detecting a shift in the incident position of convergent light when the convergent light is incident on one end surface of an optical fiber bundle, a transparent light guide plate is arranged on the light input end side of the optical fiber bundle almost perpendicularly thereto. A through-hole is formed in the transparent light guide plate in the thickness direction, and at least a portion of the through-hole on the light-incidence side of the light-incidence end surface of the optical fiber bundle has a light-diffusing property; What is claimed is: 1. A photodetection device that detects a shift in a light incident position based on the amount of light detected from the other ends of a plurality of optical fibers in a peripheral portion of a light incident end face of an optical fiber bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1461388U JPH01120609U (en) | 1988-02-08 | 1988-02-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1461388U JPH01120609U (en) | 1988-02-08 | 1988-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01120609U true JPH01120609U (en) | 1989-08-16 |
Family
ID=31225969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1461388U Pending JPH01120609U (en) | 1988-02-08 | 1988-02-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01120609U (en) |
-
1988
- 1988-02-08 JP JP1461388U patent/JPH01120609U/ja active Pending
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