JP5163041B2 - Optical element fixing device and manufacturing method thereof - Google Patents

Optical element fixing device and manufacturing method thereof Download PDF

Info

Publication number
JP5163041B2
JP5163041B2 JP2007255293A JP2007255293A JP5163041B2 JP 5163041 B2 JP5163041 B2 JP 5163041B2 JP 2007255293 A JP2007255293 A JP 2007255293A JP 2007255293 A JP2007255293 A JP 2007255293A JP 5163041 B2 JP5163041 B2 JP 5163041B2
Authority
JP
Japan
Prior art keywords
pedestal
optical element
adhesive
housing
element 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.)
Expired - Fee Related
Application number
JP2007255293A
Other languages
Japanese (ja)
Other versions
JP2009086246A (en
Inventor
美紀 八木
均 小栗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Osaka Cement Co Ltd
Original Assignee
Sumitomo Osaka Cement Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Osaka Cement Co Ltd filed Critical Sumitomo Osaka Cement Co Ltd
Priority to JP2007255293A priority Critical patent/JP5163041B2/en
Publication of JP2009086246A publication Critical patent/JP2009086246A/en
Application granted granted Critical
Publication of JP5163041B2 publication Critical patent/JP5163041B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Lens Barrels (AREA)

Description

本発明は、光学素子固定装置に係り、特に、光モジュール用の筺体の所定位置に光学素子を高精度に保持することが可能な光学素子固定装置及びその製造方法に関する。   The present invention relates to an optical element fixing device, and more particularly, to an optical element fixing device capable of holding an optical element at a predetermined position of a housing for an optical module with high accuracy and a method for manufacturing the same.

従来、光通信、光計測などの光学電子分野においては、半導体レーザなどの光源、ニオブ酸リチウムなどの誘電体結晶上に光導波路を形成した電気光学素子、及び光ファイバなどをレンズを用いて互いに光学的に結合することが行われている。   Conventionally, in the field of optoelectronics such as optical communication and optical measurement, a light source such as a semiconductor laser, an electro-optical element having an optical waveguide formed on a dielectric crystal such as lithium niobate, and an optical fiber are mutually connected using a lens. Optical coupling is performed.

このようにレンズを用いて光学的に結合する場合、光損失を最小限とするためにレンズを位置精度よく保持することが非常に重要である。例えば特許文献１には、図７に示すように、光モジュール用の筺体の所定位置にレンズを固定するためのレンズ固定装置において、レンズ１０１を保持するレンズホルダ１０２と、レンズホルダ１０２と接触する傾斜面を有する台座１０３を少なくとも２つ有し、台座１０３と筺体１０４、及び台座１０３とレンズホルダ１０２とを接合したレンズ固定装置１００が記載されている。このレンズ固定装置１００においては、レンズホルダ１０２を、横方向から２つの台座１０３で挟み込んで、台座を接着剤で固定することが記載されている。
特開２００４−２８６９６６号公報 When optically coupling using a lens in this way, it is very important to hold the lens with high positional accuracy in order to minimize optical loss. For example, in Patent Document 1, as shown in FIG. 7, in a lens fixing device for fixing a lens to a predetermined position of a housing for an optical module, a lens holder 102 that holds a lens 101 and a lens holder 102 are in contact with each other. A lens fixing device 100 having at least two pedestals 103 having inclined surfaces, in which the pedestal 103 and the housing 104, and the pedestal 103 and the lens holder 102 are joined is described. In this lens fixing device 100, it is described that the lens holder 102 is sandwiched between two pedestals 103 from the lateral direction, and the pedestal is fixed with an adhesive.
JP 2004-286966 A

しかしながら、このようなレンズ固定装置１００において、台座１０３が筺体１０４と当接する領域に接着剤を不均一に塗布して筺体１０４に接着すると、その長手方向（光軸方向）と横方向で該接着剤により不均一に応力が生じる。すると、該応力の差分によって台座１０３に位置ずれや歪みが生じてしまい、台座１０３上で固定されているレンズホルダ１０２の位置が変化してしまう虞があった。   However, in such a lens fixing device 100, when an adhesive is applied non-uniformly to a region where the pedestal 103 abuts the housing 104 and adheres to the housing 104, the bonding is performed in the longitudinal direction (optical axis direction) and the lateral direction. The agent causes uneven stress. As a result, the difference in the stress causes displacement or distortion in the pedestal 103, which may change the position of the lens holder 102 fixed on the pedestal 103.

本発明は、上記事情に鑑みてなされたものであって、接着剤により生じる応力に起因した台座の位置ずれや歪みが生じ難く、筺体に載置された光学素子を高精度に所定位置に保持できる光学素子固定装置及びその製造方法を提供することを目的とする。   The present invention has been made in view of the above circumstances, and it is difficult for the pedestal to be displaced or distorted due to the stress caused by the adhesive, and the optical element placed on the housing is held at a predetermined position with high accuracy. An object of the present invention is to provide an optical element fixing device and a method for manufacturing the same.

本発明の請求項１に記載の光学素子固定装置は、光学素子を保持する光学素子ホルダ、前記光学素子ホルダと接触する傾斜面を有する台座、及び前記台座を載置する筺体を少なくとも備え、前記台座が前記筺体と接する底面は方形をなしており、該底面の、１組の対向する２辺においてのみ接着剤を略対称に配することで前記台座が筺体に固定されていることを特徴とする。   The optical element fixing device according to claim 1 of the present invention includes at least an optical element holder for holding an optical element, a pedestal having an inclined surface in contact with the optical element holder, and a housing for mounting the pedestal, The bottom surface where the pedestal is in contact with the housing has a rectangular shape, and the pedestal is fixed to the housing by arranging the adhesive substantially symmetrically only on a pair of two opposing sides of the bottom surface. To do.

本発明の請求項２に記載の光学固定装置は、光学素子を保持する光学素子ホルダ、前記光学素子ホルダと接触する傾斜面を有する台座、及び前記台座を載置する筺体を少なくとも備え、前記台座が前記筺体と接する底面は方形をなすと共に、前記台座の底面において、少なくとも１組の対向する２辺がそれぞれ含まれるような領域に接着剤が略対称に配され、前記台座の前記接着剤が配された少なくとも１辺の近傍には、前記接着剤により生じる応力を緩和する手段が設けられていることを特徴とする。   An optical fixing device according to a second aspect of the present invention includes at least an optical element holder that holds an optical element, a pedestal having an inclined surface that comes into contact with the optical element holder, and a housing on which the pedestal is placed. The bottom surface in contact with the housing is rectangular, and the adhesive is disposed substantially symmetrically in the bottom surface of the pedestal so as to include at least one pair of two opposing sides, and the adhesive of the pedestal is In the vicinity of the arranged at least one side, a means for relaxing the stress generated by the adhesive is provided.

本発明の請求項３に記載の光学素子固定装置は、請求項２において、前記手段は、前記台座の底面において、前記接着剤が配された辺に沿って前記辺から内側に一部を欠落させてなる凹部であることを特徴とする。   The optical element fixing device according to a third aspect of the present invention is the optical element fixing device according to the second aspect, wherein the means is a part of the bottom surface of the pedestal that is partially missing from the side along the side where the adhesive is disposed. It is the recessed part made to be characterized by the above-mentioned.

本発明の請求項４に記載の光学素子固定装置は、請求項２において、前記手段は、前記台座の底面において、前記接着剤が配された辺に配された凸部であることを特徴とする。   The optical element fixing device according to a fourth aspect of the present invention is the optical element fixing device according to the second aspect, wherein the means is a convex portion arranged on a side where the adhesive is arranged on the bottom surface of the pedestal. To do.

本発明の請求項５に記載の光学素子固定装置は、請求項１乃至４において、前記傾斜面は、平面であることを特徴とする。   According to a fifth aspect of the present invention, in the optical element fixing device according to the first to fourth aspects, the inclined surface is a flat surface.

本発明の請求項６に記載の光学素子固定装置は、請求項１乃至５において、前記台座を少なくとも２つ有することを特徴とする。   According to a sixth aspect of the present invention, in the optical element fixing device according to the first to fifth aspects, the optical element fixing device has at least two pedestals.

本発明の請求項７に記載の光学素子固定装置の製造方法は、光学素子を保持する光学素子ホルダ、前記光学素子ホルダと接触する傾斜面を有する台座、及び前記台座を載置する筺体を少なくとも備え、前記台座が前記筺体と接する底面は方形をなしており、該底面において、対向する２辺がそれぞれ含まれるような領域に接着剤が略均等に配されている光学素子固定装置の製造方法において、前記光学素子ホルダを位置決め装置により保持し、所定の位置に配置する工程、前記光学素子ホルダに前記台座の傾斜面を当接させ、前記台座と前記光学素子ホルダ及び前記台座と前記筺体とを接着剤で仮固定する工程、前記位置決め装置による前記光学素子ホルダの保持を解除する工程、及び、前記領域において、前記台座と前記光学素子ホルダ及び前記台座と前記筺体とを接着剤を略対称に塗布して本固定する工程とを備えたことを特徴とする。   According to a seventh aspect of the present invention, there is provided a method for manufacturing an optical element fixing device comprising at least an optical element holder for holding an optical element, a pedestal having an inclined surface in contact with the optical element holder, and a housing for mounting the pedestal. A bottom surface of the pedestal in contact with the housing has a rectangular shape, and an adhesive is disposed substantially evenly in a region in which two opposing sides are respectively included on the bottom surface. The optical element holder is held by a positioning device and placed at a predetermined position, the inclined surface of the pedestal is brought into contact with the optical element holder, the pedestal, the optical element holder, the pedestal, and the housing A step of temporarily fixing the optical element holder with an adhesive, a step of releasing the holding of the optical element holder by the positioning device, and in the region, the base, the optical element holder, and Characterized by comprising the step of applying to the fixed substantially symmetrically with adhesive and the said base housing.

本発明の光学素子固定装置は、光学素子を保持する光学素子ホルダ、前記光学素子ホルダと接触する傾斜面を有する台座、及び前記台座を載置する筺体を少なくとも備え、前記台座が前記筺体と接する底面は方形をなしており、該底面の、１組の対向する２辺においてのみ接着剤を略対称に配することで前記台座が筺体に固定されている。
かかる構成によれば、接着剤は、台座の底面において、１組の対向する２辺にそれぞれ区分され、独立して配された状態にある。ゆえに、該２辺において接着剤はそれぞれ独立した状態で乾燥が進み、ひいては各々の辺において該台座と該筺体とを接着させる際に生じる応力は、互いに打ち消しあう方向に働く。従って、該台座に実際に影響を及ぼす応力は最小限に抑えられる。ゆえに、本発明によれば、接着剤を介して台座と筺体とを接着させたことに起因する応力により、台座に位置ずれや歪みが生じるという問題は著しく抑制されるので、光学素子を所望の位置に高精度に保持することが可能な光学素子固定装置及びその製造方法を提供することができる。 An optical element fixing device according to the present invention includes at least an optical element holder for holding an optical element, a pedestal having an inclined surface that comes into contact with the optical element holder, and a housing for mounting the pedestal, and the pedestal is in contact with the housing. The bottom surface has a square shape, and the pedestal is fixed to the housing by arranging the adhesive substantially symmetrically only on a pair of two opposing sides of the bottom surface.
According to such a configuration, the adhesive is in a state where it is divided into a pair of two opposing sides on the bottom surface of the pedestal and is arranged independently. Therefore, drying proceeds in an independent state on the two sides, and the stress generated when the base and the casing are bonded on each side works in a direction to cancel each other. Therefore, the stress that actually affects the pedestal is minimized. Therefore, according to the present invention, the problem that the pedestal is displaced or distorted due to the stress caused by bonding the pedestal and the casing through the adhesive is remarkably suppressed, so that the optical element can be obtained as desired. It is possible to provide an optical element fixing device that can be held in position with high accuracy and a method for manufacturing the same.

以下、本発明を、図面を参照して詳細に説明するが、本発明はこれに限定されるものではなく、本発明の主旨を逸脱しない範囲において種々の変更が可能である。   Hereinafter, the present invention will be described in detail with reference to the drawings. However, the present invention is not limited thereto, and various modifications can be made without departing from the gist of the present invention.

図１は、本発明の光学素子固定装置１０の第１実施形態を模式的に示した斜視図である。
光学素子１を保持する光学素子ホルダ２、光学素子ホルダ２と接触する傾斜面３ａを有する台座３、及び台座３を載置する筺体４を少なくとも備え、台座３が筺体４と接する底面３ｂは方形をなしており、底面３ｂの、１組の対向する２辺においてのみ接着剤５を略対称に配することで台座３が筺体４に固定されている。
以下、それぞれを詳細に説明する。 FIG. 1 is a perspective view schematically showing a first embodiment of an optical element fixing device 10 of the present invention.
An optical element holder 2 that holds the optical element 1, a pedestal 3 that has an inclined surface 3 a that comes into contact with the optical element holder 2, and a housing 4 on which the pedestal 3 is placed, and a bottom surface 3 b that contacts the housing 4 is square. The pedestal 3 is fixed to the housing 4 by arranging the adhesive 5 substantially symmetrically only on a pair of two opposing sides of the bottom surface 3b.
Each will be described in detail below.

光学素子１とは、例えばレンズやミラー等が挙げられる。レンズに関しては、例えば集光レンズであり、球面レンズ、非球面レンズ、屈折率分布型レンズ（ＧＲＩＮレンズ）等を用いることができる。   Examples of the optical element 1 include a lens and a mirror. The lens is, for example, a condensing lens, and a spherical lens, an aspheric lens, a gradient index lens (GRIN lens), or the like can be used.

光学素子ホルダ２は、光学素子１を担持し、台座３と接着固定されることで、光学素子１を所定の位置に保持するものである。
光学素子ホルダ２は、台座３が２つある場合は、その形状は特に限定されるものではない。また、光学素子ホルダによる応力が台座３に均等にかかるように、台座３間の中間に位置するように設けることが好ましい。
台座３が１つである場合は、光学素子ホルダ２が円筒形であることが好ましい。本発明においては、光学素子ホルダ２の位置決めをした後、瞬間接着剤で仮固定をし、その後、例えばエポキシ樹脂系接着剤で本固定を行うので、台座３が１つであっても光学素子ホルダ２を位置精度良く接着することが可能である。 The optical element holder 2 holds the optical element 1 and holds the optical element 1 in a predetermined position by being bonded and fixed to the base 3.
When there are two pedestals 3, the shape of the optical element holder 2 is not particularly limited. Moreover, it is preferable to provide so that it may be located in the middle between the bases 3 so that the stress by an optical element holder may apply to the bases 3 equally.
When there is one pedestal 3, the optical element holder 2 is preferably cylindrical. In the present invention, after the optical element holder 2 is positioned, the optical element holder 2 is temporarily fixed with an instantaneous adhesive, and then finally fixed with, for example, an epoxy resin adhesive. It is possible to bond the holder 2 with high positional accuracy.

台座３は、筺体４と接着固定されており、少なくともその一面には傾斜面３ａを有している。台座３の傾斜面３ａにて光学素子ホルダ２と接触し、光学素子ホルダ２を所定の位置で保持している。傾斜面３ａを有することで台座３の側面が常に上方を向くように配置されているため、接合作業を容易に行うことができる。傾斜面３ａの角度θは、光学素子ホルダ２を保持する位置や作業性等を考慮して、適宜調節することができる。また、台座３の大きさに関しては、例えば底面が５ｍｍＸ３ｍｍである。
台座３と筺体４との接着は、接着剤５によりなされる。接着に関しては、台座３が筺体４と接触する底面３ｂで、対向する２辺３ｃ，３ｄを含む領域に接着剤５が対称に塗布されて固定されている。このように、台座３の底面３ｂの対向する２辺３ｃ，３ｄを含む領域に接着剤５が塗布されるので、接着剤５はそれぞれ独立して乾燥する。これにより台座３が筺体４と接着されることで、接着剤５により生じる応力が互いに打ち消しあう方向に働く。従って、台座３に実際に影響を及ぼす応力は最小限に抑えられる。ゆえに、台座３を所定の位置に精度良く保持することが可能となる。また、接着剤を塗布する辺は、図では光軸と並行な辺である３ｃ，３ｄとしたが、必ずしも光軸と並行（台座の長手方向）である必要はなく、他の２辺であってもよい。
なお、台座３の底面３ｂは、必ずしも平面である必要はない。例えば、台座３の底面３ｂ内の、接着剤５が塗布されない領域においては、窪み等を有していても良い。このように窪みを設ける場合、その形状は特に限定されるものではなく、曲面であってもよい。底面３ｂに窪みを設けることで台座３を形成するコストが抑えられる。また、熱や湿度等によって台座３に応力が生じた場合、窪みが該応力を拡散させることができ、台座３の変形や歪み、位置ずれを抑制することができる。このように、応力を緩和させる場合は、該窪みの形状を曲面とすることで応力の集中を防げることから好ましい。 The pedestal 3 is bonded and fixed to the housing 4 and has an inclined surface 3a on at least one surface thereof. The inclined surface 3a of the pedestal 3 is in contact with the optical element holder 2 and holds the optical element holder 2 at a predetermined position. Since the inclined surface 3a is provided so that the side surface of the pedestal 3 always faces upward, the joining operation can be easily performed. The angle θ of the inclined surface 3a can be appropriately adjusted in consideration of the position where the optical element holder 2 is held, workability, and the like. Moreover, regarding the size of the base 3, for example, the bottom surface is 5 mm × 3 mm.
Adhesion between the pedestal 3 and the housing 4 is made by an adhesive 5. Regarding the bonding, the adhesive 5 is symmetrically applied and fixed to the region including the two opposite sides 3c and 3d on the bottom surface 3b where the pedestal 3 contacts the housing 4. As described above, since the adhesive 5 is applied to the region including the two opposite sides 3c and 3d of the bottom surface 3b of the base 3, the adhesive 5 is dried independently. As a result, the pedestal 3 is bonded to the housing 4, so that the stresses generated by the adhesive 5 work in directions to cancel each other. Therefore, the stress that actually affects the pedestal 3 is minimized. Therefore, it is possible to hold the pedestal 3 at a predetermined position with high accuracy. The sides to which the adhesive is applied are 3c and 3d that are parallel to the optical axis in the figure, but are not necessarily parallel to the optical axis (longitudinal direction of the pedestal) and are the other two sides. May be.
Note that the bottom surface 3b of the pedestal 3 is not necessarily flat. For example, in the area | region where the adhesive agent 5 is not apply | coated in the bottom face 3b of the base 3, you may have a hollow. Thus, when providing a hollow, the shape is not specifically limited, A curved surface may be sufficient. The cost for forming the pedestal 3 can be reduced by providing the bottom surface 3b with a recess. Moreover, when stress arises in the base 3 by heat | fever, humidity, etc., the hollow can diffuse this stress and can suppress the deformation | transformation of a base 3, distortion, and position shift. Thus, when stress is relieved, it is preferable because the concentration of stress can be prevented by making the shape of the recess a curved surface.

筺体４としては、例えばステンレス基板、真鍮等を用いることができる。筺体４が台座３と接触する面は、図１に示すように平面状であってもよいし、傾斜等を有していてもよい。   As the housing 4, for example, a stainless steel substrate, brass or the like can be used. The surface with which the housing 4 contacts the pedestal 3 may be flat as shown in FIG. 1 or may have an inclination or the like.

接着剤５は、筺体４と台座３、及び台座３と光学素子ホルダ２とを接着固定するものであり、エポキシ樹脂系接着剤、アクリル樹脂系接着剤、ウレタン樹脂系接着剤、クロロプレンゴム系接着剤、シリコーン系接着剤、イソシアネート系接着剤、スチレン−ブタジエン系接着剤等を用いることができる。このうち、初期接着性が高く、耐水性、耐湿性、耐熱性、耐薬品性等に優れたエポキシ樹脂系接着剤が好ましい。また、接着剤５の台座３底面３ｂへの塗布量は、対向する２辺３ｃ，３ｄ（あるいは他の対向する２辺）を含む領域で同量とすることが好ましい。同量に塗布することで、それぞれ塗布した接着剤５により生じる応力が同程度となり、打ち消しあうように作用する。そのため、接着剤５の塗布量・乾燥の程度により台座３へ影響を及ぼす応力を極力抑制することができる。従って、該応力による台座３の位置ずれや歪みを抑制することができる。
このように接着剤５を同量塗布するには、簡便に再現性良く行えることからディスペンサー等を用いることが好ましい。
また、塗布した接着剤５が塗布した部位から移動してしまうと、接着剤５が台座３の対向する２辺３ｃ，３ｄを含む領域から内部あるいは他の辺に入り込み、接着剤の広がりが不均一になってしまう。この場合、接着剤５が乾燥していく過程で台座３に生じる応力が、台座の光軸方向あるいは横方向でばらついてしまい、台座３に不均等に応力が生じる可能性がある。それゆえに、台座３に位置ずれや歪みが生じてしまう虞がある。従って、用いる接着剤５としては、塗布した部位から流れ出ないようにある程度の粘性を有したものがよく、例えば粘度が２００Ｐａ・ｓ〜５００Ｐａ・ｓである接着剤５が好適である。 The adhesive 5 adheres and fixes the housing 4 and the pedestal 3, and the pedestal 3 and the optical element holder 2, and includes an epoxy resin adhesive, an acrylic resin adhesive, a urethane resin adhesive, and a chloroprene rubber adhesive. Agents, silicone adhesives, isocyanate adhesives, styrene-butadiene adhesives, and the like can be used. Among these, an epoxy resin adhesive having high initial adhesiveness and excellent water resistance, moisture resistance, heat resistance, chemical resistance and the like is preferable. Moreover, it is preferable that the application amount of the adhesive 5 on the base 3 bottom surface 3b is the same in a region including two opposing sides 3c and 3d (or other two opposing sides). By applying the same amount, the stresses generated by the applied adhesives 5 become approximately the same and act so as to cancel each other. Therefore, the stress that affects the base 3 can be suppressed as much as possible depending on the amount of the adhesive 5 applied and the degree of drying. Therefore, the position shift and distortion of the base 3 due to the stress can be suppressed.
Thus, in order to apply the same amount of the adhesive 5, it is preferable to use a dispenser or the like because it can be easily performed with good reproducibility.
Further, if the applied adhesive 5 moves from the applied portion, the adhesive 5 enters the inside or other side from the region including the two opposite sides 3c and 3d of the base 3, and the spread of the adhesive is not allowed. It becomes uniform. In this case, the stress generated in the pedestal 3 in the process of drying the adhesive 5 varies in the optical axis direction or the lateral direction of the pedestal, and the pedestal 3 may be unevenly stressed. Therefore, there is a possibility that the pedestal 3 may be displaced or distorted. Accordingly, the adhesive 5 to be used is preferably one having a certain degree of viscosity so as not to flow out from the applied site. For example, the adhesive 5 having a viscosity of 200 Pa · s to 500 Pa · s is suitable.

本発明の光学素子固定装置１０は、接着剤５が台座３の底面３ｂであって、対向する２辺３ｃ、３ｄに略対称に塗布されている。従って、台座３の２辺で均等に接着剤５が乾燥し、接着剤５により生じる応力が打ち消しあい、台座３に実際に影響を及ぼす応力は最小限に抑えられる。従って、該応力による台座３の位置ずれや歪みが生じ難くなる。ゆえに、所定の位置に簡便かつ高精度に光学素子ホルダ２を保持することが可能となる。   In the optical element fixing device 10 of the present invention, the adhesive 5 is applied to the bottom surface 3b of the base 3 substantially symmetrically on the two opposite sides 3c and 3d. Therefore, the adhesive 5 is evenly dried on the two sides of the pedestal 3, the stresses generated by the adhesive 5 cancel each other, and the stress that actually affects the pedestal 3 is minimized. Accordingly, it is difficult for the base 3 to be displaced or distorted by the stress. Therefore, the optical element holder 2 can be held at a predetermined position easily and with high accuracy.

図２は、本発明の光学素子固定装置２０の第２実施形態を模式的に示した斜視図である。
光学素子２１を保持する光学素子ホルダ２２、光学素子ホルダ２２と接触する傾斜面２３ａを有する台座２３、及び台座２３を載置する筺体２４を少なくとも備え、
台座２３が筺体２４と接する底面２３ｂは方形をなすと共に、台座２３の底面２３ｂにおいて、少なくとも１組の対向する２辺がそれぞれ含まれるような領域に接着剤５が略対称に配され、台座２３の接着剤５が配された少なくとも１辺の近傍には、接着剤５により生じる応力を緩和する手段が設けられている。 FIG. 2 is a perspective view schematically showing a second embodiment of the optical element fixing device 20 of the present invention.
An optical element holder 22 for holding the optical element 21; a pedestal 23 having an inclined surface 23a in contact with the optical element holder 22; and a housing 24 for placing the pedestal 23 thereon.
The bottom surface 23b with which the pedestal 23 is in contact with the housing 24 has a square shape, and the adhesive 5 is disposed substantially symmetrically in the bottom surface 23b of the pedestal 23 so as to include at least one pair of two opposing sides. In the vicinity of at least one side where the adhesive 5 is disposed, a means for relaxing the stress generated by the adhesive 5 is provided.

光学素子２１、光学素子ホルダ２２、筺体２４に関しては、第１実施形態と同様である。   The optical element 21, the optical element holder 22, and the housing 24 are the same as in the first embodiment.

台座２３の一部には、接着剤５が配された少なくとも１辺の近傍に沿って、前記１辺から内側に一部を欠落させてなる凹部２６が設けられている。なお、図示例では台座２３の長手方向において、対向する２辺２３ｃ，２３ｄに凹部２６が設けられているが、凹部２６はこれに限定されるものではなく、凹部２６は接着剤５が配されている辺であれば、１辺〜４辺に設けることが可能である。
台座２３の両辺に設けた凹部２６の深さは、例えば、０．５ｍｍ〜１ｍｍ程度である。この凹部２６に接着剤５を塗布することで、接着剤５が凹部２６から台座２３の外周部に流れ出すこと、及び接着剤５が台座２３と筺体との間に侵入することを抑制することが可能となる。従って、凹部２６に塗布した接着剤５により生じる応力がより均一化し、該応力は打ち消しあうように作用するため、台座２３に実際に影響を及ぼす応力を緩和することが可能となる。また、凹部２６を設けたことで、接着剤５を塗布する場所が明確となり、簡便にかつ再現性良く、両凹部２６に接着剤５を塗布することが可能となる。
凹部２６に接着剤５を塗布する場合、台座２３を適切な位置に配置した後に光学素子ホルダの外側壁面と台座２３間、及び台座２３の外側壁面と筺体間に瞬間接着剤を点状に塗布して仮固定する。その後凹部２６にディスペンサー等を用いて接着剤５を塗布して本固定を行う。従って、簡便に所定の位置に台座３を接着固定することが可能である。
このような凹部２６に塗布する接着剤５としては、凹部２６から接着剤５が流れ出さない程度の粘度を有することが好ましく、例えば、２００Ｐａ・ｓ〜５００Ｐａ・ｓの粘度を有する接着剤がよい。
なお、この凹部２６は、図２に示したように、一連に形成されたものであってもよいし、断続的に複数形成されたものであってもよい。 A part of the pedestal 23 is provided with a recess 26 that is partially removed from the one side inward along the vicinity of at least one side where the adhesive 5 is disposed. In the illustrated example, the recesses 26 are provided on the two opposite sides 23c and 23d in the longitudinal direction of the pedestal 23. However, the recesses 26 are not limited thereto, and the adhesive 5 is disposed in the recesses 26. If it is the side which is, it can be provided in 1 side-4 sides.
The depth of the recess 26 provided on both sides of the base 23 is, for example, about 0.5 mm to 1 mm. By applying the adhesive 5 to the recess 26, it is possible to prevent the adhesive 5 from flowing out from the recess 26 to the outer periphery of the pedestal 23 and to prevent the adhesive 5 from entering between the pedestal 23 and the housing. It becomes possible. Therefore, the stress generated by the adhesive 5 applied to the recess 26 is made more uniform and the stress acts so as to cancel each other, so that the stress that actually affects the pedestal 23 can be relaxed. Further, by providing the recesses 26, the place where the adhesive 5 is applied becomes clear, and the adhesive 5 can be applied to both the recesses 26 easily and with good reproducibility.
When applying the adhesive 5 to the recess 26, after placing the pedestal 23 at an appropriate position, apply the instantaneous adhesive in a dotted manner between the outer wall surface of the optical element holder and the pedestal 23 and between the outer wall surface of the pedestal 23 and the housing. And temporarily fix. Thereafter, the adhesive 5 is applied to the concave portion 26 using a dispenser or the like to perform the main fixing. Therefore, it is possible to simply bond and fix the base 3 at a predetermined position.
The adhesive 5 applied to the concave portion 26 preferably has a viscosity that does not allow the adhesive 5 to flow out of the concave portion 26. For example, an adhesive having a viscosity of 200 Pa · s to 500 Pa · s is preferable. .
In addition, as shown in FIG. 2, this recessed part 26 may be formed in a series, and may be formed in multiple numbers intermittently.

第２実施形態の光学素子固定装置においては、接着剤５が台座２３の凹部２６に塗布されていることから、該凹部２６から流れ出し難い構成となっている。従って、接着剤５を残る２辺に塗布することが可能である。本実施形態に示すような凹部２６が台座２３に形成されていないと、仮に台座２３底面２３ｂの４辺に接着剤５を塗布した場合、該４辺に塗布した接着剤５が流れ出し、台座２３の全周に渡って接着剤が塗布されてしまう可能性が生じる。この場合、接着剤による応力が生じ、台座２３に位置ずれや歪みが生じる可能性がある。
しかしながら、本実施形態のように台座２３に凹部２６を設けることで、接着剤５の流出が抑制される。従って、凹部２６を設ければ台座２３底面の４辺に接着剤を塗布しても、均等に接着剤による応力が生じるので、該応力は打ち消しあうように作用し、台座２３に実際に影響を及ぼす応力は極力低減することが出来る。
なお、図４に示すような凸部を設けた台座を用いた場合も同様である。 In the optical element fixing device according to the second embodiment, since the adhesive 5 is applied to the concave portion 26 of the pedestal 23, it is difficult to flow out of the concave portion 26. Therefore, it is possible to apply the adhesive 5 to the remaining two sides. If the concave portion 26 as shown in the present embodiment is not formed on the pedestal 23, if the adhesive 5 is applied to the four sides of the pedestal 23 bottom surface 23b, the adhesive 5 applied to the four sides flows out, and the pedestal 23 There is a possibility that the adhesive is applied over the entire circumference of the sheet. In this case, stress due to the adhesive is generated, and the pedestal 23 may be displaced or distorted.
However, the outflow of the adhesive 5 is suppressed by providing the recess 26 in the base 23 as in the present embodiment. Accordingly, if the concave portion 26 is provided, even if an adhesive is applied to the four sides of the bottom surface of the pedestal 23, stress due to the adhesive is evenly generated. Therefore, the stress acts so as to cancel out, and the pedestal 23 is actually affected. The applied stress can be reduced as much as possible.
The same applies to the case where a pedestal provided with a convex portion as shown in FIG. 4 is used.

図３は、筺体と接する底面３３ｂに凹部を設けた三角柱状の台座３３の一例を模式的に示した図である。図３（ａ）は斜視図、図３（ｂ）は底面図、図３（ｃ）は、図３（ｂ）の底面図において、凹部３６に接着剤５を塗布した際の図である。
凹部３６は、台座３３の底面３３ｂにおいて、少なくともその１辺に設けてあればよいが、図２（ａ）及び図２（ｂ）に示すように、台座３３の底面３３ｂにおいて、対向する２辺３３ｃ、３３ｄに沿って２辺３３ｃ，３３ｄから内側に一部を欠落させてなる凹部３６を、設けることが好ましい。両辺に設けることで、接着剤５により生じる応力をより均等にさせることが可能である。また、両辺に設けた凹部の長さ、及び深さが同程度となるようにする。この凹部の深さは、例えば、０．５ｍｍ〜１ｍｍ程度である。この凹部３６に接着剤５を塗布することで、接着剤が凹部３６から台座３３の外周部に流れ出すこと、及び接着剤５が台座３３と筺体との間に侵入することを抑制することが可能となる。従って、凹部３６に塗布した接着剤５により生じる応力がより均一化し、該応力は打ち消しあうように作用するため、台座３３に実際に影響を及ぼす応力を緩和することが可能となる。また、凹部３６を設けたことで、接着剤５を塗布する場所が明確となり、簡便にかつ再現性良く、両凹部３６に接着剤５を塗布することが可能となる。
凹部３６に接着剤５を塗布する場合、台座３３を適切な位置に配置した後、光学素子ホルダの外側壁面と台座３３間、及び台座３３の外側壁面と筺体間に瞬間接着剤を点状に塗布して仮固定する。その後凹部３６にディスペンサー等を用いて接着剤５を塗布して本固定を行う。従って、簡便に所定の位置に台座３を接着固定することが可能である。
このような凹部３６に塗布する接着剤５としては、凹部３６から接着剤５が流れ出さない程度の粘度を有することが好ましく、例えば、２００Ｐａ・ｓ〜５００Ｐａ・ｓの粘度を有する接着剤がよい。
また、この凹部３６は、図３に示したように、一連に形成されたものであってもよいし、断続的に複数形成されたものであってもよい。 FIG. 3 is a diagram schematically showing an example of a triangular pillar-shaped pedestal 33 in which a concave portion is provided on the bottom surface 33b in contact with the housing. 3A is a perspective view, FIG. 3B is a bottom view, and FIG. 3C is a view when the adhesive 5 is applied to the recess 36 in the bottom view of FIG. 3B.
The recess 36 may be provided on at least one side of the bottom surface 33b of the pedestal 33. However, as shown in FIGS. 2 (a) and 2 (b), the two opposite sides of the bottom surface 33b of the pedestal 33 are provided. It is preferable to provide the recessed part 36 which a part is missing inside two sides 33c and 33d along 33c and 33d. By providing it on both sides, the stress generated by the adhesive 5 can be made more uniform. Further, the length and depth of the concave portions provided on both sides are set to be approximately the same. The depth of the recess is, for example, about 0.5 mm to 1 mm. By applying the adhesive 5 to the recess 36, it is possible to suppress the adhesive from flowing out from the recess 36 to the outer peripheral portion of the pedestal 33 and the adhesive 5 from entering between the pedestal 33 and the housing. It becomes. Accordingly, the stress generated by the adhesive 5 applied to the concave portion 36 is made more uniform and the stress acts so as to cancel each other, so that the stress that actually affects the pedestal 33 can be relaxed. Further, by providing the recesses 36, the place where the adhesive 5 is applied becomes clear, and the adhesive 5 can be applied to both the recesses 36 easily and with good reproducibility.
When applying the adhesive 5 to the recess 36, after placing the pedestal 33 at an appropriate position, the instantaneous adhesive is dotted between the outer wall surface of the optical element holder and the pedestal 33 and between the outer wall surface of the pedestal 33 and the housing. Apply and temporarily fix. Thereafter, the adhesive 5 is applied to the concave portion 36 by using a dispenser or the like to perform the main fixing. Therefore, it is possible to simply bond and fix the base 3 at a predetermined position.
The adhesive 5 applied to the concave portion 36 preferably has a viscosity that does not allow the adhesive 5 to flow out of the concave portion 36. For example, an adhesive having a viscosity of 200 Pa · s to 500 Pa · s is preferable. .
Further, as shown in FIG. 3, the recess 36 may be formed in a series, or may be formed intermittently.

図４は、凸部４７を複数設けた台座４３の一例を模式的に示した図である。図４（ａ）は斜視図、図４（ｂ）は底面図、図４（ｃ）は図４（ｂ）の底面図において、接着剤５を塗布した際の図である。
台座４３の底面４３ｂを構成する少なくとも一辺に複数個の凸部４７を設けることが好ましい。凸部４７の大きさは、例えば、０．５ｍｍ〜１ｍｍ四方である。このように、複数個の凸部４７を設けた場合、複数の凸部４７の間に設けられた間隙４７ａに接着剤５を塗布することで、該接着剤が凸部４７を超えて台座４３の外周に流れ出し、流れ出た接着剤により不均等に応力が生じるということが抑制される。 FIG. 4 is a diagram schematically showing an example of the base 43 provided with a plurality of convex portions 47. 4A is a perspective view, FIG. 4B is a bottom view, and FIG. 4C is a bottom view of FIG. 4B when the adhesive 5 is applied.
It is preferable to provide a plurality of convex portions 47 on at least one side constituting the bottom surface 43 b of the base 43. The magnitude | size of the convex part 47 is 0.5 mm-1 mm square, for example. As described above, when the plurality of convex portions 47 are provided, the adhesive agent 5 is applied to the gap 47 a provided between the plurality of convex portions 47 so that the adhesive exceeds the convex portions 47 and the base 43. It is suppressed that the stress flows out to the outer periphery of the sheet and the adhesive flows out unevenly.

また、上述した凹部３６及び凸部４７を組み合わせて用いてもよい。接着剤５が他の辺に流出することをより抑制することができるので、台座の位置ずれや歪みが生じがたく、位置精度良く光学素子を所定の位置に保持することが可能となる。   Moreover, you may use combining the recessed part 36 and the convex part 47 which were mentioned above. Since the adhesive 5 can be further prevented from flowing out to other sides, the pedestal is not easily displaced or distorted, and the optical element can be held at a predetermined position with high positional accuracy.

台座は、その傾斜面が平面であることが好ましい。台座の傾斜面を平面にすると、光学素子ホルダとの接着面において、接着剤での固定、あるいはＹＡＧレーザでの固定が容易になる。つまり、台座の傾斜面が曲面であると、台座と光学素子ホルダとの接着面の上方への開口面積が小さくなる。そのため、接着剤による台座と光学素子ホルダとの固定には問題はないが、ＹＡＧレーザで固定する場合には、開口面積が小さいためにＹＡＧレーザを該固定面に照射することが困難である。
台座の傾斜面を平面とした場合、台座の形状は、例えば図１〜図４で示したように三角柱があげられる。台座の形状を三角柱とした場合、三角形の長辺部分を該台座の底面とし、筺体と接着固定することが好ましい。筺体との接着面積を多くとれるので、より安定して台座を筺体に固定することができるとともに、光学素子ホルダ２による応力を広い範囲に分散させることができる。また、三角柱の斜辺が成す角度については、光学素子ホルダの固定位置等を考慮して、適宜調節することが可能である。
また、傾斜面が平面である場合、台座の形状は三角柱状に限られるものではなく、例えば、台形状であってもよい。 The pedestal preferably has a flat inclined surface. If the inclined surface of the pedestal is flat, it is easy to fix with an adhesive or a YAG laser on the adhesive surface with the optical element holder. That is, when the inclined surface of the pedestal is a curved surface, the opening area above the bonding surface between the pedestal and the optical element holder is reduced. For this reason, there is no problem in fixing the pedestal and the optical element holder with an adhesive, but when fixing with a YAG laser, it is difficult to irradiate the fixing surface with the YAG laser because the opening area is small.
When the inclined surface of the pedestal is a flat surface, the shape of the pedestal is, for example, a triangular prism as shown in FIGS. When the shape of the pedestal is a triangular prism, it is preferable that the long side portion of the triangle is the bottom surface of the pedestal and is bonded and fixed to the housing. Since a large bonding area with the housing can be obtained, the pedestal can be more stably fixed to the housing, and the stress caused by the optical element holder 2 can be dispersed over a wide range. Further, the angle formed by the hypotenuse of the triangular prism can be appropriately adjusted in consideration of the fixing position of the optical element holder.
When the inclined surface is a plane, the shape of the pedestal is not limited to the triangular prism shape, and may be a trapezoidal shape, for example.

台座の傾斜面を曲面とした場合、台座の形状は、例えば図５に示すような構造となる。図５（ａ）は斜視図、図５（ｂ）は底面図である。
台座５３が光学素子ホルダと接する面５３ａを曲面とすることで、光学素子ホルダが台座に及ぼす応力を、より積極的に分散させることが可能となる。また、曲面５３ａの曲率に関しては、光学素子ホルダの固定位置等を考慮して、適宜調節することが可能である。 When the inclined surface of the pedestal is a curved surface, the shape of the pedestal has a structure as shown in FIG. 5, for example. FIG. 5A is a perspective view, and FIG. 5B is a bottom view.
By making the surface 53a in contact with the optical element holder the curved surface 53a, the stress exerted on the pedestal by the optical element holder can be more actively dispersed. Further, the curvature of the curved surface 53a can be appropriately adjusted in consideration of the fixing position of the optical element holder.

台座の傾斜面を曲面とした場合、台座が三角柱状の場合と同様に凸部６７を設けることもできる。図６は、凸部６７を有し、かつ傾斜面が曲面である台座５３の一例を模式的に示した図である。図６（ａ）は斜視図、図６（ｂ）は底面図、図６（ｃ）は図６（ｂ）の底面図において、接着剤５を塗布した際の図である。
図６に示すように、凸部６７は、光学素子ホルダと接する傾斜面６３ａとは逆の面に設ける。複数の凸部６７の間に設けられた間隙６７ａに接着剤５を塗布することで、接着剤５が凸部６７を超えて台座６３の外周に流れ出し、流れ出た接着剤により不均等に応力が生じるということが抑制される。また、光学素子ホルダと台座６３とを接着した際、凸部６７は台座６３に生じる応力に対しての抵抗力となり、台座６３の位置ずれや歪みを抑制することができる。従って、長期間に渡り位置精度良く光学素子ホルダを所定の位置に保持することができるので、信頼性の高い光学素子固定装置を提供することが可能となる。
また、凸部６７は、図４の場合と同様に台座の光軸方向の面に設けることも可能である。この場合も同様に、凸部６７間に接着剤を塗布する。 When the inclined surface of the pedestal is a curved surface, the convex portion 67 can be provided similarly to the case where the pedestal has a triangular prism shape. FIG. 6 is a diagram schematically showing an example of the pedestal 53 having the convex portion 67 and the inclined surface being a curved surface. 6A is a perspective view, FIG. 6B is a bottom view, and FIG. 6C is a bottom view of FIG. 6B when the adhesive 5 is applied.
As shown in FIG. 6, the convex portion 67 is provided on a surface opposite to the inclined surface 63a in contact with the optical element holder. By applying the adhesive 5 to the gap 67a provided between the plurality of convex portions 67, the adhesive 5 flows over the convex portion 67 to the outer periphery of the pedestal 63, and uneven stress is applied by the flowed adhesive. It is suppressed that it occurs. Further, when the optical element holder and the pedestal 63 are bonded to each other, the convex portion 67 becomes a resistance force against the stress generated in the pedestal 63, and the displacement and distortion of the pedestal 63 can be suppressed. Therefore, since the optical element holder can be held at a predetermined position with high positional accuracy over a long period of time, a highly reliable optical element fixing device can be provided.
Moreover, the convex part 67 can also be provided in the surface of the optical axis direction of a base like the case of FIG. In this case as well, an adhesive is applied between the convex portions 67.

次に、本発明の光学素子固定装置の組み立て方法について説明する（図１参照）。本発明において、接着剤の塗布は第１段階と第２段階の２つの工程によって行う。第１段階は各部材を仮固定するための接着固定であり、瞬間接着剤あるいは光（紫外線）硬化型接着剤を用いることが好ましい。第２段階は各部材を本固定するための接着固定であり、上述した接着剤５を用いることが好ましい。   Next, a method for assembling the optical element fixing device of the present invention will be described (see FIG. 1). In the present invention, the adhesive is applied by two processes, a first stage and a second stage. The first stage is adhesive fixing for temporarily fixing each member, and it is preferable to use an instantaneous adhesive or a light (ultraviolet) curable adhesive. The second stage is an adhesive fixing for permanently fixing each member, and it is preferable to use the adhesive 5 described above.

まず、光学素子位置決め装置（不図示）に設けられたアームαの先端に光学素子ホルダ２を取り付け、光モジュール用の筺体４の所定の位置に光学素子ホルダ２を配置する。
次に、光学素子ホルダ２に保持された光学素子１を通過して出射する光波を光検出器により検知しながら、光学素子ホルダ２を適正な位置に調整する。 First, the optical element holder 2 is attached to the tip of an arm α provided in an optical element positioning device (not shown), and the optical element holder 2 is disposed at a predetermined position of the optical module housing 4.
Next, the optical element holder 2 is adjusted to an appropriate position while a light wave passing through the optical element 1 held by the optical element holder 2 and detected by a photodetector.

光学素子ホルダ２の位置決めが完了した後、２つの台座３の各傾斜面３ａを光学素子ホルダ２の各辺に当接させ、光モジュール用の筺体４に載置する。   After the positioning of the optical element holder 2 is completed, the inclined surfaces 3a of the two pedestals 3 are brought into contact with the respective sides of the optical element holder 2 and placed on the optical module housing 4.

光学素子ホルダ２及び台座３の配置が完了した後、光学素子ホルダ２の外側壁面と台座３間、及び台座３の外側壁面と筺体４間に瞬間接着剤を点状に塗布する。なお、塗布位置は接着面に対して略対称となるような点とし、硬化時の位置ずれを抑制することが好ましい。   After the arrangement of the optical element holder 2 and the pedestal 3 is completed, an instantaneous adhesive is applied in a spot shape between the outer wall surface of the optical element holder 2 and the pedestal 3 and between the outer wall surface of the pedestal 3 and the housing 4. The application position is preferably a point that is substantially symmetrical with respect to the bonding surface, and it is preferable to suppress positional deviation during curing.

仮固定用の接着剤として、光（紫外線）硬化型接着剤を用いた場合は、該接着剤を塗布した後に各機材の位置決めを行い、硬化光（紫外光）を照射して接着剤の硬化を行うことが好ましい。   When a light (ultraviolet) curable adhesive is used as an adhesive for temporary fixing, positioning the equipment after applying the adhesive, curing the adhesive by irradiating curing light (ultraviolet light) It is preferable to carry out.

その後、光学素子ホルダ２から位置決め装置のアームαを取り外す。   Thereafter, the arm α of the positioning device is removed from the optical element holder 2.

そして、各々の仮固定した箇所を、対向する２辺がそれぞれ含まれるような領域に接着剤５を略対称に塗布することで本固定する。以上で光学素子固定装置１０の組み立てが完了する。
なお図２記載の第２実施形態においても同様である。第２実施形態においては、本固定用の接着剤５は、凹部２６に塗布することが好ましい。 Then, each temporarily fixed portion is permanently fixed by applying the adhesive 5 substantially symmetrically to a region including two opposing sides. Thus, the assembly of the optical element fixing device 10 is completed.
The same applies to the second embodiment shown in FIG. In the second embodiment, the main fixing adhesive 5 is preferably applied to the recess 26.

本発明は、光モジュール等に適用することが可能である。   The present invention can be applied to an optical module or the like.

本発明の第１実施形態に係る光学素子固定装置の一例を模式的に示した図である。It is the figure which showed typically an example of the optical element fixing device which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係る光学素子固定装置の一例を模式的に示した図である。It is the figure which showed typically an example of the optical element fixing device which concerns on 2nd Embodiment of this invention. 応力緩和手段を有した台座の一例を模式的に示した図である。It is the figure which showed typically an example of the base which has a stress relaxation means. 応力緩和手段を有した台座の他の一例を模式的に示した図である。It is the figure which showed typically another example of the base which has a stress relaxation means. 曲面を有した台座の一例を模式的に示した図である。It is the figure which showed typically an example of the base which has a curved surface. 曲面を有した台座の他の一例を模式的に示した図である。It is the figure which showed typically another example of the base with a curved surface. 従来の光学素子固定装置の一例を模式的に示した図である。It is the figure which showed typically an example of the conventional optical element fixing device.

符号の説明Explanation of symbols

１ 光学素子、２ 光学素子ホルダ、３，２３，３３，４３，５３，６３ 台座、３ａ，２３ａ，３３ａ，４３ａ，５３ａ，６３ａ 傾斜面、３ｂ，２３ｂ，３３ｂ，４３ｂ，５３ｂ，６３ｂ 底面、３ｃ，３ｄ，２３ｃ，２３ｄ ２辺、４ 筺体、５ 接着剤、２６，３６ 凹部、４７，６７ 凸部、１０，２０ 光学素子固定装置。   1 optical element, 2 optical element holder, 3, 23, 33, 43, 53, 63 base, 3a, 23a, 33a, 43a, 53a, 63a inclined surface, 3b, 23b, 33b, 43b, 53b, 63b bottom surface, 3c , 3d, 23c, 23d 2 sides, 4 housings, 5 adhesives, 26, 36 concave portions, 47, 67 convex portions, 10, 20 Optical element fixing device.

Claims (4)

光学素子を保持する光学素子ホルダ、前記光学素子ホルダと接触する傾斜面を有する台座、及び前記台座を載置する筺体を少なくとも備え、
前記台座が前記筺体と接する底面は方形をなすと共に、前記台座の底面における少なくとも１組の対向する２辺がそれぞれ含まれる前記台座の外側壁面に、前記台座の外側壁面と前記筐体の面とに当接する接着剤が略対称に配され、前記接着剤は前記台座の底面と前記筐体との間に侵入することを抑制された状態で配されており、前記台座の前記接着剤が配された少なくとも１辺の近傍には、前記接着剤により生じる応力を緩和する手段が設けられており、
前記手段は、前記台座の底面において、前記接着剤が配された辺に沿って前記辺の両端を残して前記台座の外周から内側に一部を一連に欠落させてなる凹部である、または、前記台座の底面において、前記接着剤が配された辺の両端に配され前記台座の外周方向に突出された凸部である
ことを特徴とする光学素子固定装置。 An optical element holder for holding an optical element, a pedestal having an inclined surface in contact with the optical element holder, and a housing for placing the pedestal;
Bottom the pedestal is in contact with the housing, together forming a square, on the outer wall surface of said base at least one pair of opposing two sides Keru us to the bottom of the pedestal is contained respectively, the outer wall surface of the pedestal and the housing An adhesive that contacts the surface is disposed substantially symmetrically, and the adhesive is disposed in a state in which intrusion between the bottom surface of the pedestal and the housing is suppressed, and the adhesive of the pedestal In the vicinity of at least one side where is arranged, there is provided means for relieving stress caused by the adhesive,
The means is a recess formed by removing a series of parts from the outer periphery of the pedestal to the inside, leaving both ends of the side along the side where the adhesive is disposed on the bottom surface of the pedestal , or An optical element fixing device, characterized in that, on the bottom surface of the pedestal, convex portions are provided at both ends of the side where the adhesive is disposed and project in the outer peripheral direction of the pedestal . 前記傾斜面は、平面であることを特徴とする請求項１に記載の光学素子固定装置。   The optical element fixing device according to claim 1, wherein the inclined surface is a flat surface. 前記台座を少なくとも２つ有することを特徴とする請求項１または２に記載の光学素子固定装置。   The optical element fixing device according to claim 1, wherein the optical element fixing device has at least two pedestals. 光学素子を保持する光学素子ホルダ、前記光学素子ホルダと接触する傾斜面を有する台座、及び前記台座を載置する筺体を少なくとも備え、前記台座が前記筺体と接する底面は方形をなすと共に、前記台座の底面における少なくとも１組の対向する２辺がそれぞれ含まれる前記台座の外側壁面に、前記台座の外側壁面と前記筐体の面とに当接する接着剤が略対称に配され、前記接着剤は前記台座の底面と前記筐体との間に侵入することを抑制された状態で配されており、前記台座の前記接着剤が配された少なくとも１辺の近傍には、前記接着剤により生じる応力を緩和する手段が設けられており、前記手段は、前記台座の底面において、前記接着剤が配された辺に沿って前記辺の両端を残して前記台座の外周から内側に一部を一連に欠落させてなる凹部である、または、前記台座の底面において、前記接着剤が配された辺の両端に配され前記台座の外周方向に突出された凸部である光学素子固定装置の製造方法において、
前記光学素子ホルダを位置決め装置により保持し、所定の位置に配置することで前記光学素子の光軸を調整する工程、
光軸調整後の前記光学素子ホルダに前記台座の傾斜面を当接させ、前記台座と前記光学素子ホルダ及び前記台座と前記筺体とを接着剤で仮固定する工程、
前記位置決め装置による前記光学素子ホルダの保持を解除する工程、
及び、前記台座と前記光学素子ホルダ及び前記台座と前記筺体とを、前記台座の外側壁面に接着剤を略対称に塗布して本固定する工程とを備えたことを特徴とする光学素子固定装置の製造方法。 An optical element holder for holding an optical element; a pedestal having an inclined surface that comes into contact with the optical element holder; and a casing on which the pedestal is placed. The bottom surface of the pedestal contacting the casing forms a square, and the pedestal Keru least one set to the bottom surface of the opposing two sides on the outside wall surface of said base respectively contained, adhesive contact to the surface of the outer wall and the housing of the pedestal is arranged substantially symmetrically, the adhesive The agent is disposed in a state in which it is suppressed from entering between the bottom surface of the pedestal and the housing, and in the vicinity of at least one side of the pedestal where the adhesive is disposed, Means for relieving the stress generated is provided, and the means is provided on the bottom surface of the pedestal , partly inward from the outer periphery of the pedestal, leaving both ends of the side along the side where the adhesive is disposed. Let them drop in a series A recess made, or, in the bottom of the pedestal, in the manufacturing method of the optical element fixing device disposed at opposite ends of the side where the adhesive was arranged a convex portion that protrudes in the outer peripheral direction of the pedestal,
A step of adjusting the optical axis of the optical element by holding the optical element holder by a positioning device and arranging the optical element holder at a predetermined position;
A step of bringing the inclined surface of the pedestal into contact with the optical element holder after optical axis adjustment, and temporarily fixing the pedestal, the optical element holder, the pedestal, and the housing with an adhesive;
Releasing the holding of the optical element holder by the positioning device;
And an optical element fixing device comprising: a step of applying the adhesive substantially symmetrically to the outer wall surface of the pedestal, and fixing the pedestal, the optical element holder, and the pedestal, and the housing. Manufacturing method.
JP2007255293A 2007-09-28 2007-09-28 Optical element fixing device and manufacturing method thereof Expired - Fee Related JP5163041B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007255293A JP5163041B2 (en) 2007-09-28 2007-09-28 Optical element fixing device and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007255293A JP5163041B2 (en) 2007-09-28 2007-09-28 Optical element fixing device and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JP2009086246A JP2009086246A (en) 2009-04-23
JP5163041B2 true JP5163041B2 (en) 2013-03-13

Family

ID=40659761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007255293A Expired - Fee Related JP5163041B2 (en) 2007-09-28 2007-09-28 Optical element fixing device and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JP5163041B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7090464B2 (en) * 2018-04-26 2022-06-24 キヤノン株式会社 Holding device and optical device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3664028B2 (en) * 2000-02-23 2005-06-22 三菱電機株式会社 Imaging device
JP4096588B2 (en) * 2002-03-22 2008-06-04 コニカミノルタホールディングス株式会社 Imaging device
JP4327484B2 (en) * 2003-03-20 2009-09-09 住友大阪セメント株式会社 Lens fixing device and manufacturing method thereof
JP2007158751A (en) * 2005-12-06 2007-06-21 Hitachi Maxell Ltd Imaging apparatus and its manufacturing method

Also Published As

Publication number Publication date
JP2009086246A (en) 2009-04-23

Similar Documents

Publication Publication Date Title
JP4679906B2 (en) Lens fixing structure
US20150131949A1 (en) Device comprising weldbonded components
JPH11326641A (en) Optical fiber wavelength filter and its production
JP2006058369A (en) Optical component and splicing method therefor, and optical module
KR102474767B1 (en) Endcaps, Assemblies, and Methods for Improving Accuracy in Fiber-Endcap-Fixture Alignment
JP2015169794A (en) Optical module and optical modulation device
JP5163041B2 (en) Optical element fixing device and manufacturing method thereof
JPH02115808A (en) Waveguide optical module having fiber coupling
JPWO2021187178A5 (en)
US20180259742A1 (en) Non-adhesive mounting assembly for a tall rochon polarizer
JP2002082270A (en) Optical device
JP4012537B2 (en) Optical module and manufacturing method thereof
JP3927363B2 (en) Optical connection device
JP2003322755A (en) Optical fiber collimator
JP4763497B2 (en) Optical module coupling structure and assembly method thereof
JPH08313758A (en) Optical coupling method for optical waveguide and optical coupler of waveguide element
JP2020027165A (en) Optical connection device
JP3758762B2 (en) Optical connection parts
JP4171372B2 (en) Optical fiber array
JP7222426B2 (en) optical connection structure
JP2021192107A (en) Method for connecting integrated type grin lens and optical fiber
JP2006154028A (en) Optical filter module and optical beam incident angle adjusting method
JPH0375608A (en) Packaging method for optical waveguide parts
JP4331250B2 (en) Optical fiber array
JPH04245207A (en) Method for fixing optical fiber to cage and optical device using it

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100129

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110729

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110802

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111003

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120124

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120326

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20120619

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120919

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20120926

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20121120

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121203

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151228

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5163041

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees