JPS5857105A - Lens attaching method for optical fiber - Google Patents
Lens attaching method for optical fiberInfo
- Publication number
- JPS5857105A JPS5857105A JP15670481A JP15670481A JPS5857105A JP S5857105 A JPS5857105 A JP S5857105A JP 15670481 A JP15670481 A JP 15670481A JP 15670481 A JP15670481 A JP 15670481A JP S5857105 A JPS5857105 A JP S5857105A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- lens
- end part
- mold
- recess
- 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 title claims abstract description 24
- 238000000034 method Methods 0.000 title description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
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
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は光フアイバー用レンズ取付は方法に関するもの
で、所望の放射パターンを有するレンズを確実に得るこ
とを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching lenses for optical fibers, and its purpose is to reliably obtain a lens having a desired radiation pattern.
光ファイバーの端部にレンズを取付ける目的は、端部よ
りの光拡散を防止し光をしぼり受光素子に効率良く照射
せしめたり、発光素子の光を損失少なく集めて光ファイ
バーに入光せしめたり、対面配置される光ファイバーの
間で光をさえぎる物を検知するセンサの投受光効率を高
めたりするととにあるが、従来、レンズは精度のよいマ
イクロレンズが要求されると共に気泡やゴミ等を入れず
マイクロレンズを光ファイバーに精度よく接着されるこ
とが要求され、かかる要求を満すことは困難である欠点
があった。The purpose of attaching a lens to the end of an optical fiber is to prevent light from spreading from the end and narrow the light so that it can efficiently illuminate the light receiving element, to collect the light from the light emitting element with less loss and allow it to enter the optical fiber, or to place it face-to-face. In order to improve the light emitting and receiving efficiency of the sensor that detects objects blocking light between optical fibers, conventional lenses require highly accurate microlenses and are designed to prevent air bubbles and dust from entering. The disadvantage is that it is difficult to meet such requirements because it is required to be adhered to the optical fiber with high precision.
本発明はかかる欠点に鑑みて為されたもので、以下図面
に従って説明する。The present invention has been made in view of these drawbacks, and will be described below with reference to the drawings.
図において、（１）は模式的に描かれた加工装置であり
、鏡面仕上げされた半球状の凹み（２） 、 （２）
、 （２）を有する金型（３）と、該金型（３）を加熱
するヒータ（４）と、光ファイバーを透光（５）に貫通
させ保持し熱伝導性の悪い材質で形成される光フアイバ
ー保持板（６）とより成る。そしてかかる加工装置（１
）を用い光ファイバー（６）はその端部にレンズ（７）
が溶融形成される。In the figure, (1) is a processing device schematically drawn, and mirror-finished hemispherical depressions (2), (2)
, (2), a heater (4) for heating the mold (3), an optical fiber (5) that penetrates and holds the optical fiber, and is made of a material with poor thermal conductivity. It consists of an optical fiber holding plate (6). And such processing equipment (1
) and the optical fiber (6) has a lens (7) at its end.
is melt-formed.
すなわち、光ファイバー（６）の端部を透孔（５）に貫
通させその端面を加熱された金型（３）の凹み（２）に
押しつけるとその凹み（２）に対応した形状に溶融しそ
の後金型（３）を冷却すると半球状のレンズ（７）が形
成される。That is, when the end of the optical fiber (6) is passed through the through hole (5) and the end face is pressed against the recess (2) of the heated mold (3), it melts into a shape corresponding to the recess (2) and then When the mold (3) is cooled, a hemispherical lens (7) is formed.
尚、レンズ（７）が光フアイバー保持板（６）の透孔（
５）より大きくなる場合は光フアイバー保持板（６）を
割り型としてレンズ（７）部を引き抜き可能としたもの
は本発明の好ましい実施例である。Note that the lens (7) is inserted into the through hole (
5) If the size is larger than that, a preferred embodiment of the present invention is to use the optical fiber holding plate (6) as a split mold so that the lens (7) can be pulled out.
かかるよう番ｃ本発明の光フアイバー用レンズ取付は方
法は、加熱された金型の鏡面仕上げされた半球状の凹み
に光ファイバーの端部を押しつけて加熱溶融せしめ、そ
の後冷却せしめてレンズ部を光ファイバーの端部に一体
的に形成することを特徴とするものであるので、以下の
効果を有する。The optical fiber lens mounting method of the present invention involves pressing the end of the optical fiber against the mirror-finished hemispherical recess of a heated mold to heat and melt it, and then cooling it to attach the lens part to the optical fiber. Since it is characterized in that it is formed integrally with the end portion, it has the following effects.
（イ） レンズを接着剤を用いて光ファイバーに付着し
なくてもよいので、気泡やゴミの混入が問題とならず光
が有効にレンズを透過できる。(b) Since the lens does not need to be attached to the optical fiber using adhesive, light can effectively pass through the lens without causing problems with air bubbles or dust.
（ロ）金型を用いるだけで簡単に所望のレンズが得られ
る。(b) A desired lens can be easily obtained just by using a mold.
Claims (1)
光ファイバーの端部を押しつけて加熱溶融せしめ、その
後冷却せしめてレンズ部を光ファイバーの端部に一体的
に形成することを特徴とする光フアイバー用レンズ取付
は方法。l) The end of the optical fiber is pressed against the mirror-finished hemispherical recess of the heated mold, heated and melted, and then cooled to form the lens part integrally with the end of the optical fiber. How to install optical fiber lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15670481A JPS5857105A (en) | 1981-09-30 | 1981-09-30 | Lens attaching method for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15670481A JPS5857105A (en) | 1981-09-30 | 1981-09-30 | Lens attaching method for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5857105A true JPS5857105A (en) | 1983-04-05 |
Family
ID=15633508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15670481A Pending JPS5857105A (en) | 1981-09-30 | 1981-09-30 | Lens attaching method for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5679490A (en) * | 1995-05-31 | 1997-10-21 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, and process for producing the same |
| US5795694A (en) * | 1995-05-19 | 1998-08-18 | Canon Kabushiki Kaisha | Toner for developing electrostatic image |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55121405A (en) * | 1979-03-13 | 1980-09-18 | Machida Seisakusho:Kk | Working method for end face of optical fiber |
-
1981
- 1981-09-30 JP JP15670481A patent/JPS5857105A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55121405A (en) * | 1979-03-13 | 1980-09-18 | Machida Seisakusho:Kk | Working method for end face of optical fiber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795694A (en) * | 1995-05-19 | 1998-08-18 | Canon Kabushiki Kaisha | Toner for developing electrostatic image |
| US5863697A (en) * | 1995-05-19 | 1999-01-26 | Canon Kabushiki Kaisha | Toner for developing electrostatic image and process for production thereof |
| US5679490A (en) * | 1995-05-31 | 1997-10-21 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, and process for producing the same |
| US5773185A (en) * | 1995-05-31 | 1998-06-30 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, and process for producing the same |
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