JPS6218510A - Structure of spherical lens holder - Google Patents
Structure of spherical lens holderInfo
- Publication number
- JPS6218510A JPS6218510A JP15865185A JP15865185A JPS6218510A JP S6218510 A JPS6218510 A JP S6218510A JP 15865185 A JP15865185 A JP 15865185A JP 15865185 A JP15865185 A JP 15865185A JP S6218510 A JPS6218510 A JP S6218510A
- Authority
- JP
- Japan
- Prior art keywords
- axis
- groove
- cylindrical holder
- spherical lens
- holder
- 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
Abstract
Description
【発明の詳細な説明】
〔概要〕
球レンズを挟持固定するホルダの構造であって、傾斜面
を有する２個のホルダに形成した互いに直交する■溝の
交点で、球レンズを挟持するようにした構造である。[Detailed Description of the Invention] [Summary] This is a structure of a holder that clamps and fixes a spherical lens, in which the spherical lens is clamped at the intersection of mutually perpendicular grooves formed on two holders having inclined surfaces. It has a similar structure.
本考案は、球レンズホルダの構造に係り、とくに一方の
端面に傾斜面を有する２個の円筒形ホルダに、それぞれ
軸と直交する■溝と平行な■溝を形成して、球レンズを
挟持するようにした球レンズホルダの構造に関する。The present invention relates to the structure of a spherical lens holder, and in particular, two cylindrical holders each having an inclined surface on one end face are formed with grooves perpendicular to the axis and parallel to the groove to hold the spherical lens between them. The present invention relates to a structure of a spherical lens holder.
光半導体素子と光ファイバの結合光学系として用いられ
るガラス等からなる球レンズは、一般に対向するＶ溝を
形成した一対のホルダで支持されるか、または円筒内に
圧入して用いられることが多い。ところで円筒内に圧入
する場合は、円筒内径と球レンズ径を高精度に規制しな
いと支持できないで、信頼性に欠けるとともに高価にな
るので、安価で容易に支持できる球レンズホルダの開発
が強く要望されている。A spherical lens made of glass or the like used as a coupling optical system between an optical semiconductor element and an optical fiber is generally supported by a pair of holders with opposing V-grooves, or is often press-fitted into a cylinder. . By the way, when press-fitting into a cylinder, the inner diameter of the cylinder and the diameter of the ball lens must be regulated with high precision to support it, which results in a lack of reliability and is expensive, so there is a strong demand for the development of a ball lens holder that is inexpensive and can be easily supported. has been done.
第５図ば、従来の球レンズホルダの構造を説明する図で
、同図（ａ）は側断面図、（ｂ）は正面図である。FIG. 5 is a diagram illustrating the structure of a conventional ball lens holder; FIG. 5(a) is a side sectional view and FIG. 5(b) is a front view.
図において、金属棒たとえば黄銅棒等がらなり、球レン
ズ挿入孔１１を穿設したホルダ１に、球レンズ２を圧入
する構造である。ここで球レンズ挿入孔１１の内径は球
レンズ２の外径より数μ小さく形成しである。In the figure, a ball lens 2 is press-fitted into a holder 1 which is made of a metal rod, such as a brass rod, and has a ball lens insertion hole 11. Here, the inner diameter of the ball lens insertion hole 11 is made smaller than the outer diameter of the ball lens 2 by several μm.
上記従来の球レンズホルダの構造は、ホルダの内径と、
球レンズの外径を数μの高精度に加工しなければならな
いため、高価になるという問題があるとともに、若干の
寸法誤差があると信頼性が低下する等それぞれの問題点
があった。The structure of the above-mentioned conventional ball lens holder consists of the inner diameter of the holder,
Since the outer diameter of the spherical lens must be machined to a high precision of several microns, there is a problem that it is expensive, and there are other problems such as a decrease in reliability if there is a slight dimensional error.
本発明は上記の問題点を解決して信頼性の向上を図った
球レンズホルダの構造を提供するものである。The present invention provides a structure of a ball lens holder that solves the above problems and improves reliability.
すなわち、一端面に傾斜面３２と偏心孔３１を形成し、
この偏心孔３１内に軸と直交するＶ溝３３を形成した第
１の円筒形ホルダ３と、端面に第１の円筒形ホルダ３に
形成した傾斜面３２と対応する傾斜面４２と、軸に平行
な■溝４３を含む扇形孔４１を形成した第２の円筒形ホ
ルダ４の、軸と平行なＶ ８４３と、軸と直交するＶ溝
３３とで、球レンズ２を挟持固定するようにしたことに
よって解決される。That is, an inclined surface 32 and an eccentric hole 31 are formed on one end surface,
The first cylindrical holder 3 has a V-groove 33 perpendicular to the axis formed in the eccentric hole 31, an inclined surface 42 corresponding to the inclined surface 32 formed on the first cylindrical holder 3 on the end surface, and The second cylindrical holder 4 has a fan-shaped hole 41 including a parallel groove 43, and the ball lens 2 is clamped and fixed between the V groove 33 parallel to the axis and the V groove 33 perpendicular to the axis. This is solved by
上記球レンズホルダの構造は、第１の円筒形ホルダ３に
形成した軸と直交する■溝３３と、第２の円筒形ホルダ
４に形成した軸と平行なＶ溝４３との交叉部で、球レン
ズ２を支持するので、円筒ホルダの高精度加工を要しな
い。The structure of the above-mentioned spherical lens holder is an intersection of a groove 33 formed in the first cylindrical holder 3 and perpendicular to the axis, and a V groove 43 formed in the second cylindrical holder 4 and parallel to the axis. Since the spherical lens 2 is supported, high precision machining of the cylindrical holder is not required.
第１図は、本発明の第１の円筒形ホルダを説明する図で
、同図（ａ）は側断面図、（ｂ）は正面図である。FIG. 1 is a diagram illustrating a first cylindrical holder of the present invention, in which (a) is a side sectional view and (b) is a front view.
図において、金属棒たとえば黄銅棒等からなる第１の円
筒形ホルダ３に、偏心孔３１を穿設し、一端に所定角の
傾斜面３２を形成する。そして偏心孔３１の軸心に近い
内面に、軸と直交するＶｉ３３を形成したものである。In the figure, an eccentric hole 31 is bored in a first cylindrical holder 3 made of a metal rod, such as a brass rod, and an inclined surface 32 of a predetermined angle is formed at one end. Further, on the inner surface of the eccentric hole 31 near the axis, a Vi 33 that is perpendicular to the axis is formed.
第２図は、本発明の第２の円筒形ホルダを説明する図で
、同図（ａ）は側断面図、（ｂ）は正面図である。FIG. 2 is a diagram illustrating a second cylindrical holder of the present invention, in which (a) is a side sectional view and (b) is a front view.
図において、金属棒たとえば黄銅棒等からなる第２の円
筒形ホルダ４に、軸に平行な■溝４３を含む扇形孔４１
を穿設し、第１の円筒形ホルダ３と対応する端面に傾斜
面４１を形成した構造である。In the figure, a second cylindrical holder 4 made of a metal rod, such as a brass rod, has a sector-shaped hole 41 that includes a groove 43 parallel to the axis.
It has a structure in which an inclined surface 41 is formed on the end surface corresponding to the first cylindrical holder 3.
第３図は、本発明の一実施例を説明する図で、同図（ａ
）は側断面図、（ｂ）は正面図で、第１図、第２図およ
び第５図と同等の部分については同一符合を付している
。FIG. 3 is a diagram illustrating one embodiment of the present invention.
) is a side sectional view, and (b) is a front view, in which parts equivalent to those in FIGS. 1, 2, and 5 are given the same reference numerals.
図において、第１の円筒形ホルダ３の軸直交■溝３３と
、第２の円筒形ホルダ４の軸平行Ｖ溝４３に球レンズ２
を挟んで、対向せしめるよう傾斜面３２と４２を密着し
た状態で、第１の円筒形ホルダ３と、第２の円筒形ホル
ダ４の密着部をレーザ溶接により接着したものであるが
、この場合溶接が容易に行なえるように、第１の円筒形
ホルダ３と、第２の円筒形ホルダ４の外径を若干異なら
せるのが好ましい。In the figure, a ball lens 2 is inserted into the axis-perpendicular groove 33 of the first cylindrical holder 3 and the axis-parallel V groove 43 of the second cylindrical holder 4.
In this case, the contact parts of the first cylindrical holder 3 and the second cylindrical holder 4 are bonded by laser welding, with the inclined surfaces 32 and 42 in close contact with each other so as to face each other with the In order to facilitate welding, it is preferable that the first cylindrical holder 3 and the second cylindrical holder 4 have slightly different outer diameters.
第４面は、本発明の詳細な説明する要部側断面図で、第
３図と同等の部分については同一符合を付している。The fourth side is a side sectional view of the main parts explaining the present invention in detail, and parts equivalent to those in FIG. 3 are given the same reference numerals.
図において、第４図において説明した光学系５の一方に
光半導体素子６を他方に光ファイバ７を配置して、光半
導体素子６から出射された光８を光学系５で集光して、
光ファイバ７に入射する構成である。In the figure, an optical semiconductor element 6 is arranged on one side of the optical system 5 explained in FIG.
This is a configuration in which the light is input to an optical fiber 7.
以上の説明から明らかなように、本発明によれば光学系
における球レンズの支持が確実で、高信頼性が維持でき
、光の結合効率が向上する利点がある。As is clear from the above description, the present invention has the advantage that the ball lens in the optical system can be supported reliably, high reliability can be maintained, and light coupling efficiency can be improved.
第１図は、本発明の第１の円筒形ホルダを説明する図で
、同図［ａ）は側断面図、（ｂ）は正面図、第２図は、
本発明の第２の円筒形ホルダを説明する図で、同図（ａ
）は側断面図、（ｂ）は正面図、第３図は、本発明の一
実施例を説明する図で、同図（ａｌは側断面図、（ｂ）
は正面図、第４図は、本発明の詳細な説明する要部側断
面図、
第５図は、従来の球レンズホルダの構造を説明する図で
、同図（ａ）歯側断面、（ｂ）は正面図である。
図において、１はホルダ、２は球しズ、３は第１の円筒
形ホルダ、４は第２の円筒形ホルダ、５は光学系、６は
光半導体素子、７は光ファイバ、８は光、１−１は球レ
ンズ挿入孔、３１は偏心孔、３２゜４２は傾斜面、３３
は軸直交■溝、４１は扇形孔、４３は軸平行Ｖ′ａ、を
それぞれ示す。
本発明・才Ｔ・円Ｉ和チ″１
、！矛どＧＨの刀に’Ｌニス′粘７”のシξと１第 ３
因FIG. 1 is a diagram explaining a first cylindrical holder of the present invention, in which FIG. 1A is a side sectional view, FIG. 1B is a front view, and FIG.
This is a diagram for explaining the second cylindrical holder of the present invention.
) is a side sectional view, (b) is a front view, and FIG. 3 is a diagram illustrating an embodiment of the present invention.
is a front view, FIG. 4 is a sectional side view of the main part explaining the present invention in detail, and FIG. 5 is a diagram illustrating the structure of a conventional ball lens holder. b) is a front view. In the figure, 1 is a holder, 2 is a sphere, 3 is a first cylindrical holder, 4 is a second cylindrical holder, 5 is an optical system, 6 is an optical semiconductor element, 7 is an optical fiber, and 8 is an optical fiber. , 1-1 is a ball lens insertion hole, 31 is an eccentric hole, 32°42 is an inclined surface, 33
41 indicates an axis-perpendicular groove, 41 indicates a sector-shaped hole, and 43 indicates an axis-parallel V'a, respectively. The present invention, the talent T, the circle I, ``1,! the sword of the spear GH, the ``L varnish'' of the 7'' shi ξ and the 1st 3rd
Cause
Claims (1)
偏心孔（３１）内に軸と直交するＶ溝（３３）を形成し
た第１の円筒形ホルダ（３）と、 端面に前記第１の円筒形ホルダ（３）に形成した傾斜面
（３２）と対応する傾斜面（４２）と、軸に平行なＶ溝
（４３）を含む扇形孔（４１）を形成した第２の円筒形
ホルダ（４）の、 前記軸と平行なＶ溝（４３）と、軸と直交するＶ溝（３
３）とで、球レンズ（２）を挟持固定するようにしたこ
とを特徴とする球レンズホルダの構造。[Claims] A first cylindrical holder having an inclined surface (32) and an eccentric hole (31) formed on one end surface, and a V groove (33) perpendicular to the axis formed in the eccentric hole (31). (3), an inclined surface (42) corresponding to the inclined surface (32) formed on the first cylindrical holder (3) on the end surface, and a sector-shaped hole (41) including a V-groove (43) parallel to the axis. ) of the second cylindrical holder (4), a V-groove (43) parallel to the axis, and a V-groove (3) perpendicular to the axis.
3) A structure of a spherical lens holder characterized in that the spherical lens (2) is clamped and fixed by the spherical lens (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15865185A JPS6218510A (en) | 1985-07-17 | 1985-07-17 | Structure of spherical lens holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15865185A JPS6218510A (en) | 1985-07-17 | 1985-07-17 | Structure of spherical lens holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6218510A true JPS6218510A (en) | 1987-01-27 |
Family
ID=15676366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15865185A Pending JPS6218510A (en) | 1985-07-17 | 1985-07-17 | Structure of spherical lens holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218510A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448010A (en) * | 1987-08-19 | 1989-02-22 | Nec Corp | Photosemiconductor module |
| US5044287A (en) * | 1989-06-16 | 1991-09-03 | Ebara Corporation | Method of controlling combustion in a fluidized bed furnace |
| US5124281A (en) * | 1990-08-27 | 1992-06-23 | At&T Bell Laboratories | Method of fabricating a photonics module comprising a spherical lens |
-
1985
- 1985-07-17 JP JP15865185A patent/JPS6218510A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448010A (en) * | 1987-08-19 | 1989-02-22 | Nec Corp | Photosemiconductor module |
| US5044287A (en) * | 1989-06-16 | 1991-09-03 | Ebara Corporation | Method of controlling combustion in a fluidized bed furnace |
| US5124281A (en) * | 1990-08-27 | 1992-06-23 | At&T Bell Laboratories | Method of fabricating a photonics module comprising a spherical lens |
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