JPH0263160U - - Google Patents
Info
- Publication number
- JPH0263160U JPH0263160U JP14028288U JP14028288U JPH0263160U JP H0263160 U JPH0263160 U JP H0263160U JP 14028288 U JP14028288 U JP 14028288U JP 14028288 U JP14028288 U JP 14028288U JP H0263160 U JPH0263160 U JP H0263160U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light
- core
- refractive index
- light emitting
- 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 8
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案第一実施例の光学読取装置の横
断平面図、第２図は同じくその光フアイバの断面
図、第３図は本考案第二実施例の光学読取装置の
横断平面図、第４図は従来の光学読取装置の横断
平面図、第５図は同じくその光フアイバの切断面
をカツト法で端面処理した状態を示す図、第６図
は同じく研磨法で端面処理した状態を示す図、第
７図は同じく熱板法で端面処理した状態を示す図
である。
１０：本体、１１：発光素子、１２：受光素子
、１３：読取情報媒体、１４：レンズ、１５，１
６，１７：光フアイバ、１８：コア、１９：クラ
ツド、２０：光透過性材料、Ｄ：切断面、Ｅ：平
坦面。
FIG. 1 is a cross-sectional plan view of an optical reading device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of the optical fiber thereof, and FIG. 3 is a cross-sectional plan view of an optical reading device according to a second embodiment of the present invention. FIG. 4 is a cross-sectional plan view of a conventional optical reading device, FIG. 5 is a diagram showing the cut surface of the optical fiber with the end surface treated by the cutting method, and FIG. 6 is a diagram showing the end surface of the optical fiber treated with the cutting method. The figure shown in FIG. 7 is a view showing a state in which the end surface has been treated by the hot plate method. 10: Main body, 11: Light emitting element, 12: Light receiving element, 13: Reading information medium, 14: Lens, 15, 1
6, 17: Optical fiber, 18: Core, 19: Clad, 20: Light-transmitting material, D: Cut surface, E: Flat surface.
Claims (1)
光素子からの出射光を読取情報媒体へ伝送する発
光側光フアイバと、前記読取情報媒体からの反射
光を前記受光素子に伝送する受光側光フアイバと
を備え、該光フアイバは、屈折率の高いコアと、
該コアよりも低い屈折率を持ちこれを被覆するク
ラツドとから構成され、前記光フアイバの両切断
面に、前記コアの屈折率に近い光透過性材料が被
覆され、その端面が平坦面とされたことを特徴と
する光学読取装置。 The apparatus main body includes a light emitting element, a light receiving element, a light emitting side optical fiber that transmits the light emitted from the light emitting element to the reading information medium, and a light receiving side optical fiber that transmits the reflected light from the reading information medium to the light receiving element. The optical fiber includes a core having a high refractive index, and a core having a high refractive index.
and a cladding having a refractive index lower than that of the core and covering it, and both cut surfaces of the optical fiber are coated with a light-transmitting material having a refractive index close to that of the core, and the end faces thereof are flat surfaces. An optical reading device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14028288U JPH0263160U (en) | 1988-10-26 | 1988-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14028288U JPH0263160U (en) | 1988-10-26 | 1988-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0263160U true JPH0263160U (en) | 1990-05-11 |
Family
ID=31404312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14028288U Pending JPH0263160U (en) | 1988-10-26 | 1988-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0263160U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5988672A (en) * | 1982-11-12 | 1984-05-22 | Toshiba Corp | Optical fiber sensor |
| JPS618376B2 (en) * | 1980-11-20 | 1986-03-13 | Showa Denko Kk | |
| JPS63228110A (en) * | 1987-03-17 | 1988-09-22 | Mitsubishi Electric Corp | Method for depositing thin film |
-
1988
- 1988-10-26 JP JP14028288U patent/JPH0263160U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618376B2 (en) * | 1980-11-20 | 1986-03-13 | Showa Denko Kk | |
| JPS5988672A (en) * | 1982-11-12 | 1984-05-22 | Toshiba Corp | Optical fiber sensor |
| JPS63228110A (en) * | 1987-03-17 | 1988-09-22 | Mitsubishi Electric Corp | Method for depositing thin film |
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