JPH0437708A - Lens fixing structure - Google Patents
Lens fixing structureInfo
- Publication number
- JPH0437708A JPH0437708A JP14486190A JP14486190A JPH0437708A JP H0437708 A JPH0437708 A JP H0437708A JP 14486190 A JP14486190 A JP 14486190A JP 14486190 A JP14486190 A JP 14486190A JP H0437708 A JPH0437708 A JP H0437708A
- Authority
- JP
- Japan
- Prior art keywords
- holding member
- lens part
- hole
- lens
- fixing structure
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 229910000679 solder Inorganic materials 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はレンズの固定構造に関し、特に光通信で使用す
る光デバイスのレンズの固定構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lens fixing structure, and more particularly to a lens fixing structure for an optical device used in optical communication.
第２図（ａ）及び第２図（ｂ）は従来のレンズの固定構
造の一例を示す正面図及び側面図である。レンズ部１ａ
の外径より大きい内径の保持部材２ａにレンズ部１ａを
挿入し、半田等の封止部材３ａにより保持部材２ａにレ
ンズ部１ａを固定していた。FIGS. 2(a) and 2(b) are a front view and a side view showing an example of a conventional lens fixing structure. Lens part 1a
The lens portion 1a is inserted into a holding member 2a having an inner diameter larger than the outer diameter of the lens portion 1a, and the lens portion 1a is fixed to the holding member 2a with a sealing member 3a such as solder.
上述した従来のレンズの固定構造は、保持部材２ａの内
側が円筒形状となっているので、レンズ部１ａと保持部
材２ａとの間隔（クリアランス）が小さいと、封止部材
３ａが隙間に入りにくく、両者の固定が不完全になる。In the conventional lens fixing structure described above, the inside of the holding member 2a is cylindrical, so if the distance (clearance) between the lens portion 1a and the holding member 2a is small, the sealing member 3a is difficult to enter the gap. , the fixation of both becomes incomplete.
またクリアランスが大きいと、封止部材３ａは隙間に入
り易いが、第７図及び第８図に示すように保持部材２ａ
の中心に精度よくレンズ部１ａを固定できないという問
題がある。Moreover, if the clearance is large, the sealing member 3a will easily enter the gap, but as shown in FIGS. 7 and 8, the holding member 2a
There is a problem in that the lens portion 1a cannot be accurately fixed at the center of the lens.
本発明のレンズの固定構造は、外側から円筒形のレンズ
部と、このレンズ部が挿入される貫通穴を有する保持部
材と、前記挿入された前記レンズ部と前記保持部材とを
固定させる封止部材とを有するレンズの固定構造におい
て、前記保持部材の貫通穴の面に起伏を設けることを特
徴とする。The lens fixing structure of the present invention includes a cylindrical lens part from the outside, a holding member having a through hole into which the lens part is inserted, and a sealing member that fixes the inserted lens part and the holding member. In the lens fixing structure having the holding member, a surface of the through hole of the holding member is provided with undulations.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図（ａ）及び第１図（ｂ）は本発明の第１の実施例
の正面図及び側面図である。FIG. 1(a) and FIG. 1(b) are a front view and a side view of a first embodiment of the present invention.
第１図の実施例は、外側が円筒形のレンズ部１と、レン
ズ部１が挿入される貫通穴Ｈを有する保持部材２と、挿
入されたレンズ部１と保持部材２とを固定させる封止部
材３とを有し、保持部材３の貫通穴の面に起伏を設け、
起伏の突起部をレンズ部１の円筒形の外径に隙間なく嵌
合させるように構成する。The embodiment shown in FIG. 1 includes a lens part 1 having a cylindrical shape on the outside, a holding member 2 having a through hole H into which the lens part 1 is inserted, and a seal for fixing the inserted lens part 1 and the holding member 2. a stop member 3, and an undulation is provided on the surface of the through hole of the holding member 3;
The undulating protrusion is configured to fit into the cylindrical outer diameter of the lens part 1 without any gaps.
第３図〜第６図は本発明の第２〜第５の実施例の保持部
材の貫通穴の形状を示す正面図である。3 to 6 are front views showing the shapes of through holes of holding members in second to fifth embodiments of the present invention.
このようにすると、保持部材の内面の突起部とレンズ部
の円筒外径部とが嵌合し、起伏の隙間に封止部材として
融点が数１００度Ｃのガラスや半田を充填することによ
り、保持部材にレンズ部が精度よく固定することができ
る。In this way, the projection on the inner surface of the holding member and the cylindrical outer diameter part of the lens part fit together, and the gap between the undulations is filled with glass or solder with a melting point of several hundred degrees Celsius as a sealing member. The lens portion can be accurately fixed to the holding member.
以上説明したように、本発明は、保持部材に設けた、起
伏を有する貫通穴と貫通穴に挿入されたレンズ部との隙
間に封止部材を充填することにより、保持部材に軸ずれ
や、角度ずれを生じることなく精度良くレンズ部を固定
できるという効果がある。As explained above, the present invention prevents axial misalignment in the holding member by filling the gap between the uneven through-hole provided in the holding member and the lens portion inserted into the through-hole with a sealing member. This has the effect that the lens portion can be fixed with high precision without causing angular deviation.
第１図（ａ）及び第１図（ｂ）は本発明の第１の実施例
の正面図及び側面図、第２図（ａ）及び第２図（ｂ）は
従来のレンズの固定構造の一例の正面図及び側面図、第
３図〜第６図は本発明の第２〜第５の実施例の保持部材
を示す正面図、第７図及び第８図は従来例を説明するた
めの正面図及び側面図である。
１・・・レンズ部、２・・・保持部材、３・・・封止部
材。Figures 1(a) and 1(b) are front and side views of the first embodiment of the present invention, and Figures 2(a) and 2(b) are of a conventional lens fixing structure. A front view and a side view of an example, FIGS. 3 to 6 are front views showing holding members of second to fifth embodiments of the present invention, and FIGS. 7 and 8 are front views for explaining a conventional example. They are a front view and a side view. DESCRIPTION OF SYMBOLS 1... Lens part, 2... Holding member, 3... Sealing member.
Claims (1)
される貫通穴を有する保持部材と、前記挿入された前記
レンズ部と前記保持部材とを固定させる封止部材とを有
するレンズの固定構造において、前記保持部材の貫通穴
の面に起伏を設けることを特徴とするレンズの固定構造
。 ２、前記貫通穴の突起部を前記レンズ部の円筒形の外径
に嵌合させることを特徴とする請求項１記載のレンズの
固定構造。[Claims] 1. A cylindrical lens portion from the outside, a holding member having a through hole into which the lens portion is inserted, and a sealing member for fixing the inserted lens portion and the holding member. What is claimed is: 1. A lens fixing structure comprising: a lens fixing structure characterized in that a surface of the through hole of the holding member is provided with undulations; 2. The lens fixing structure according to claim 1, wherein the protruding portion of the through hole is fitted to the outer diameter of a cylindrical shape of the lens portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2144861A JP2836195B2 (en) | 1990-06-01 | 1990-06-01 | Lens fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2144861A JP2836195B2 (en) | 1990-06-01 | 1990-06-01 | Lens fixing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0437708A true JPH0437708A (en) | 1992-02-07 |
| JP2836195B2 JP2836195B2 (en) | 1998-12-14 |
Family
ID=15372106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2144861A Expired - Lifetime JP2836195B2 (en) | 1990-06-01 | 1990-06-01 | Lens fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2836195B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826002U (en) * | 1981-08-12 | 1983-02-19 | 松下電器産業株式会社 | rod lens |
| JPS61107308A (en) * | 1984-10-31 | 1986-05-26 | Olympus Optical Co Ltd | Lens holder |
| JPS6257932A (en) * | 1985-09-06 | 1987-03-13 | Toa Nenryo Kogyo Kk | Production of carbon fiber and graphite fiber |
| JPH02110503A (en) * | 1988-10-20 | 1990-04-23 | Olympus Optical Co Ltd | Lens holder |
-
1990
- 1990-06-01 JP JP2144861A patent/JP2836195B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826002U (en) * | 1981-08-12 | 1983-02-19 | 松下電器産業株式会社 | rod lens |
| JPS61107308A (en) * | 1984-10-31 | 1986-05-26 | Olympus Optical Co Ltd | Lens holder |
| JPS6257932A (en) * | 1985-09-06 | 1987-03-13 | Toa Nenryo Kogyo Kk | Production of carbon fiber and graphite fiber |
| JPH02110503A (en) * | 1988-10-20 | 1990-04-23 | Olympus Optical Co Ltd | Lens holder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2836195B2 (en) | 1998-12-14 |
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