JP2588100Y2 - Structure of lens holding member - Google Patents
Structure of lens holding memberInfo
- Publication number
- JP2588100Y2 JP2588100Y2 JP1992034741U JP3474192U JP2588100Y2 JP 2588100 Y2 JP2588100 Y2 JP 2588100Y2 JP 1992034741 U JP1992034741 U JP 1992034741U JP 3474192 U JP3474192 U JP 3474192U JP 2588100 Y2 JP2588100 Y2 JP 2588100Y2
- Authority
- JP
- Japan
- Prior art keywords
- holding member
- lens
- adhesive
- lens holding
- fitting portion
- 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 - Lifetime
Links
Landscapes
- Optical Head (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案は光学式記録再生装置な
どの光ビームを制御するレンズ保持部材の構造に係り、
特に、レンズを接着剤で固定するのに好適なレンズ保持
部材の構造に関する。This invention relates to a structure of a lens holding member for controlling a light beam in an optical recording / reproducing apparatus or the like.
In particular, the present invention relates to a structure of a lens holding member suitable for fixing a lens with an adhesive.
【０００２】[0002]
【従来技術】従来より、レンズ保持部材の構造は図８乃
至図13に示すものが多く提供されていた。図８はレンズ
と２箇所の接着剤塗布部を設けたレンズ保持部材とを示
した分解斜視図、図９はレンズを保持部材に接着した状
態を示した斜視図、図10は他の従来例の角形のレンズ保
持部材を示した斜視図、図11は円形のレンズ保持部材と
レンズとを接着した状態を示した斜視図、図12は図11の
断面図、図13は４箇所の接着剤塗布部を設けたレンズ保
持部材の斜視図である。2. Description of the Related Art Conventionally, many lens holding members shown in FIGS. 8 to 13 have been provided. 8 is an exploded perspective view showing a lens and a lens holding member provided with two adhesive application portions, FIG. 9 is a perspective view showing a state where the lens is bonded to the holding member, and FIG. 10 is another conventional example. FIG. 11 is a perspective view showing a state in which a circular lens holding member and a lens are bonded to each other, FIG. 12 is a cross-sectional view of FIG. 11, and FIG. It is a perspective view of the lens holding member provided with the application part.
【０００３】図８及び図９において、１はレンズ、40は
レンズ１の保持部材であり、この保持部材40はレンズ１
を嵌合させる嵌合部40a と、上記レンズ１の中心部に設
けた光ビームの通過穴40b とを形成している。41は保持
部材40の上部に設けた接着剤の塗布部、42は保持部材40
と一体成形で形成したベース、43は接着剤である。In FIGS. 8 and 9, reference numeral 1 denotes a lens, and reference numeral 40 denotes a holding member for the lens 1.
And a light beam passage hole 40b provided in the center of the lens 1 are formed. Reference numeral 41 denotes an adhesive application portion provided on the upper portion of the holding member 40, and reference numeral 42 denotes a holding member 40
Reference numeral 43 denotes an adhesive formed integrally with the base.
【０００４】この様に構成したレンズ１の保持部材40の
構造は、小型化するため保持部材40の全体を円形状に小
さくし、２箇所の塗布部41を設け、この塗布部41を図の
ように比較的大きな面積にし、この塗布部41に接着剤43
を用いてレンズ１を保持部材40に接着していた。In the structure of the holding member 40 of the lens 1 configured as described above, the entire holding member 40 is made smaller in a circular shape in order to reduce the size, and two coating portions 41 are provided. Make a relatively large area as shown in FIG.
The lens 1 was adhered to the holding member 40 by using.
【０００５】また、他の従来例の図10において、50は角
形に形成した保持部材であり、この保持部材50も前記同
様にレンズ１の嵌合部50a と光ビームの通過穴50b とが
形成され、51は保持部材50の上部の四隅部を接着剤塗布
部に形成していた。52は保持部材50と一体成形で形成し
たベースである。この様に構成した保持部材50は、角形
に形成したので４箇所の角隅部の面積の大きい接着剤塗
布部51を有することができ、しかも、４箇所の接着剤の
塗布処理によって強力な接着ができた。In FIG. 10 of another conventional example, reference numeral 50 denotes a holding member formed in a rectangular shape. The holding member 50 also has a fitting portion 50a of the lens 1 and a light beam passage hole 50b similarly to the above. The reference numeral 51 indicates that the upper four corners of the holding member 50 were formed in the adhesive application portion. 52 is a base formed integrally with the holding member 50. Since the holding member 50 thus configured is formed in a square shape, the holding member 50 can have the adhesive application portion 51 having a large area at four corners, and furthermore, strong adhesion is achieved by applying the adhesive at four locations. Was completed.
【０００６】また、他の従来例の図11及び図12におい
て、60は円形に形成した保持部材であり、前記同様にレ
ンズ１の嵌合部60a と光ビームの通過穴60b とを形成
し、この保持部材60の上部の接着剤62の塗布部61でレン
ズ１を接着固定していた。In FIGS. 11 and 12 of another conventional example, reference numeral 60 denotes a holding member which is formed in a circular shape, and forms a fitting portion 60a of the lens 1 and a light beam passage hole 60b in the same manner as described above. The lens 1 was adhered and fixed by the application part 61 of the adhesive 62 on the upper part of the holding member 60.
【０００７】また、他の従来例の図13において、70は角
形に形成した保持部材であり、この保持部材70も前記同
様にレンズ１の嵌合部70a と光ビームの通過穴70b とが
形成され、71は保持部材70の上部の接着剤塗布部であ
り、この保持部材70の前記図10の保持部材50と同様に４
箇所の角隅部の面積の大きい接着剤塗布部71を有するこ
とができ、しかも、４箇所の接着剤の塗布処理によって
強力な接着ができた。In FIG. 13 of another conventional example, reference numeral 70 denotes a rectangular holding member. The holding member 70 also has a fitting portion 70a of the lens 1 and a light beam passage hole 70b similarly to the above. Reference numeral 71 denotes an adhesive application portion on the upper part of the holding member 70, and the same number of the holding member 70 as the holding member 50 in FIG.
It was possible to have an adhesive application section 71 having a large area at the corners of the locations, and strong adhesion was achieved by applying the adhesive at four locations.
【０００８】[0008]
【考案が解決しようとする課題】しかし、上記した従来
のレンズ保持部材の構造は、接着面積が図８の接着剤塗
布部41や図11の接着剤塗布部61のように平面で小さいた
め、接着剤43,62 の溜り部の面積も小さくなり、接着剤
43,62 の本来の接着力が発揮しにくいことがあった。ま
た、近年、光学式のレンズ保持部材に良く使用される高
剛性、高精度、軽比重の新素材のエンジニアリング・プ
ラスチック材では基本的に各種接着剤との密着性に難点
のあるものが多く、接着強度を上げようとすると、図10
や図13の保持部材50,70 のように接着剤の溜り部を大き
く形成しなければ接着効果が上げられず、大きな接着剤
塗布部51,71 を形成することにより小型化と逆行すると
いう欠点があった。However, in the structure of the above-mentioned conventional lens holding member, since the bonding area is small in a plane like the adhesive application part 41 in FIG. 8 and the adhesive application part 61 in FIG. The area of the pool of the adhesive 43, 62 is also reduced, and the adhesive
In some cases, the original adhesive strength of 43,62 was difficult to exert. In recent years, many engineering plastic materials of high rigidity, high precision, and low specific gravity, which are often used for optical lens holding members, have basically difficulty in adhesion with various adhesives. When trying to increase the adhesive strength, Fig. 10
As shown in FIG. 13 and the holding members 50 and 70 shown in FIG. 13, the adhesive effect cannot be improved unless the pool of adhesive is formed large. was there.
【０００９】特に、小型に形成した図１１の円形のレン
ズ保持部材６０は接着面積が小さいため、図のように２
箇所の接着処理で無く、レンズ１と保持部材６０の全円
周に渡って接着処理することが必婁になり、この全円周
に渡って接着処理するために、保持部材６０の回転台な
どの治具を必要とし、また、接着塗布量のバラツキによ
る外円周部への接着の垂れ流しなどの不具合を発生する
という欠点もあった。In particular, since the small-sized circular lens holding member 60 shown in FIG.
It is indispensable to perform the bonding process over the entire circumference of the lens 1 and the holding member 60 instead of the bonding process of the portions. In addition, there is a drawback that the jig is required, and a problem such as the adhesive flowing down to the outer circumferential portion due to the variation in the amount of adhesive applied occurs.
【００１０】即ち、従来例では、保持部材60の小型化と
レンズ１の接着強度を確保するという、一見矛盾したこ
とに対して、どちらかを犠牲にしてレンズ保持部材の構
造を構築してレンズ１の接着処理による保持を行わざる
を得なかった。That is, in the conventional example, the seemingly contradictory of miniaturizing the holding member 60 and securing the bonding strength of the lens 1 is solved. No. 1 had to be held by the bonding treatment.
【００１１】この考案は上記した点に鑑みてなされたも
のであり、その目的とするところは従来例の欠点を解消
し、小型化したレンズ保持部材に凹形の溝やタテ穴など
を設けて接着強度を確保したレンズ保持部材の構造を提
供するところにある。The present invention has been made in view of the above points, and aims at solving the disadvantages of the prior art and providing a concave groove or a vertical hole in a miniaturized lens holding member. It is an object of the present invention to provide a structure of a lens holding member that secures adhesive strength.
【００１２】[0012]
【課題を解決するための手段】この考案のレンズ保持部
材の構造は光学式記録再生装置の光ビームを制御するレ
ンズをレンズ保持部材に接着剤を用いて固定する構造に
おいて、上記レンズ保持部材は、上面にレンズ嵌合部を
形成し、該上面の外周の複数箇所に前記レンズ嵌合部と
接しないように切欠部を形成し、この切欠部の底面に連
続して凹溝を形成し、前記上面に塗布する接着剤の余剰
分が前記切欠部および凹溝に流れ込むようにしたもので
ある。According to the present invention, there is provided a lens holding member having a structure in which a lens for controlling a light beam of an optical recording / reproducing apparatus is fixed to the lens holding member by using an adhesive. Forming a lens fitting portion on the upper surface, forming a notch at a plurality of locations on the outer periphery of the upper surface so as not to contact the lens fitting portion, forming a concave groove continuously on the bottom surface of the notch, An excess of the adhesive applied to the upper surface flows into the notch and the groove.
【００１３】また、上記レンズ保持部材のレンズ嵌合部
の周囲に複数のタテ穴を形成し、このタテ穴の底面と連
続しかつレンズ保持部材外周に開放する開放溝を形成し
てもよく、レンズ保持部材のレンズ嵌合部の周囲に複数
の突出部を近接形成してもよく、レンズ保持部材の上端
部の直径寸法を小さくした小径上端部を形成し、この小
径上端部の下側外周側面に円周溝を形成してもよい。Further, a plurality of vertical holes may be formed around the lens fitting portion of the lens holding member, and an open groove continuous with the bottom surface of the vertical hole and open to the outer periphery of the lens holding member may be formed. A plurality of protrusions may be formed in the vicinity of the lens fitting portion of the lens holding member, and a small-diameter upper end in which the diameter of the upper end of the lens holding member is reduced is formed. A circumferential groove may be formed on the side surface.
【００１４】[0014]
【作用】この考案によれば、光学式記録再生装置の光ビ
ームを制御するレンズを接着剤を用いて固定するレンズ
保持部材を小型化した円形状に形成し、このレンズ保持
部材の接着剤塗布部に複数の切欠部を設け、更に、この
切欠部の底面に凹形に形成した凹溝を設けることによ
り、この接着剤塗布部でレンズと保持部材とを接着剤で
接着処理し、接着剤塗布部に流し込んだ接着剤の余剰分
が上記切欠部と上記凹溝に流れ込んで接着剤の溜り部と
して作用し、接着剤が外部に垂れ流れることを防止する
ことができる。According to the present invention, a lens holding member for fixing a lens for controlling a light beam of an optical recording / reproducing apparatus using an adhesive is formed in a miniaturized circular shape, and an adhesive is applied to the lens holding member. A plurality of notches are provided in the portion, and a concave groove formed in the bottom of the notch is provided, so that the lens and the holding member are bonded with an adhesive at the adhesive application portion, and the adhesive is applied. An excess of the adhesive that has flowed into the application section flows into the notch and the groove and acts as a pool for the adhesive, thereby preventing the adhesive from dripping to the outside.
【００１５】この様に、レンズ保持部材を円形に小型化
し、しかも、有効な量の接着剤を用いて接着強度を確保
することができ、この接着剤の余剰分を内部の切欠部や
凹溝などに溜めて接着処理することができる。As described above, the lens holding member can be reduced in size to a circular shape, and the adhesive strength can be ensured by using an effective amount of the adhesive. It can be stored in a container and bonded.
【００１６】また、上記レンズ保持部材の接着剤塗布部
に複数のタテ穴を設け、このタテ穴の底面に側面が開放
して凹形に形成した開放溝を設け、前記、同様にタテ穴
と開放溝が接着剤の溜り部として作用して接着処理に対
して同様の効果を出すことができる。Also, a plurality of vertical holes are provided in the adhesive application portion of the lens holding member, and an open groove is formed on the bottom surface of the vertical hole so that the side surface is open and formed in a concave shape. The open groove acts as a reservoir for the adhesive and can provide a similar effect on the bonding process.
【００１７】更に、上記レンズ保持部材の接着剤塗布部
に複数の突出部を設け、この突出部に添って接着処理す
ることにより、レンズは保持部材の突出部との間に塗布
した接着剤によって接着面積を大きく形成することがで
き、接着処理を堅固に確保することができる。しかも、
接着剤の余剰分は上記突出部によって保持部材の外部に
流れることを防止することができる。Further, a plurality of protrusions are provided on the adhesive application portion of the lens holding member, and the lens is adhered along with the protrusions, whereby the lens is formed by the adhesive applied between the lens and the protrusion. A large bonding area can be formed, and the bonding process can be firmly secured. Moreover,
The surplus adhesive can be prevented from flowing to the outside of the holding member by the protrusion.
【００１８】また、他の実施例として、上記レンズ保持
部材の上端部の直径寸法を小さく形成した小径上端部を
設け、この小径上端部の下側側面に凹形に形成した円周
溝を形成することにより、レンズが保持部材の上記小径
上端部の嵌合部に嵌め込まれ、このレンズと保持部材の
小径上端部の、例えば、全周部を接着剤で接着処理する
ことにより、レンズは保持部材に堅固に接着することが
でき、しかも、塗布した接着剤の余剰分は上記凹形に形
成した円周溝の内部に流れ込んで接着剤の溜り部を形成
するので、接着剤は円形の保持部材の外部に垂れ流れる
ことを防止することができる。In another embodiment, a small-diameter upper end is formed by reducing the diameter of the upper end of the lens holding member, and a concave circumferential groove is formed on the lower side surface of the small-diameter upper end. By doing so, the lens is fitted into the fitting portion at the upper end of the small diameter of the holding member, and the entire periphery of the lens and the upper end of the small diameter of the holding member, for example, is bonded with an adhesive to hold the lens. The adhesive can be firmly adhered to the member, and the excess of the applied adhesive flows into the recessed circumferential groove to form an adhesive reservoir, so that the adhesive is held in a circular shape. It is possible to prevent the flowing out of the member.
【００１９】この様に、円形に形成した小型のレンズ保
持部材に切欠部やタテ穴と凹形の溝を設けて余剰接着剤
の溜り部を形成することにより、より小型化したレンズ
保持部材を形成し、しかも、接着強度を十分に確保する
ことができる。As described above, a notch, a vertical hole, and a concave groove are provided in a small lens holding member having a circular shape to form a reservoir for excess adhesive. It can be formed, and the adhesive strength can be sufficiently ensured.
【００２０】[0020]
【実施例】この考案に係るレンズ保持部材の構造の実施
例を図１乃至図７に基づいて説明する。なお、従来例と
同一部分には同一符号を付してその説明を省略する。図
１は保持部材に切欠部と凹溝とを形成したレンズ保持部
材とレンズとを示した「実施例１」の分解斜視図であ
り、図２は図１の断面図である。図３は保持部材にタテ
穴と開放溝とを設けたレンズ保持部材を示した「実施例
２」の斜視図、図４は保持部材に突出部を設けたレンズ
保持部材を示した「実施例３」の斜視図、図５は図４の
断面図、図６は保持部材の上端部を小径上端部に形成
し、この小径上端部の下側に円周溝を形成したレンズ保
持部材を示した「実施例４」の斜視図、図７は図６の断
面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the structure of a lens holding member according to the present invention will be described with reference to FIGS. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is an exploded perspective view of “Example 1” showing a lens holding member in which a notch and a concave groove are formed in a holding member and a lens, and FIG. 2 is a cross-sectional view of FIG. FIG. 3 is a perspective view of “Example 2” showing a lens holding member provided with a vertical hole and an open groove in the holding member. FIG. 4 is a “Example” showing a lens holding member provided with a protruding portion on the holding member. 3 is a perspective view, FIG. 5 is a cross-sectional view of FIG. 4, and FIG. 6 shows a lens holding member in which the upper end of the holding member is formed at a small-diameter upper end and a circumferential groove is formed below the small-diameter upper end. FIG. 7 is a cross-sectional view of FIG. 6.
【００２１】図１及び図２の「実施例１」において、２
は保持部材であり、この保持部材２にはレンズ１を嵌め
込む嵌合部2aが形成され、更に、保持部材２の中心部に
光ビームが通過する通過穴2bが形成されている。３は保
持部材２の接着剤塗布部に設けた切欠部であり、この切
欠部３の底面には凹形に形成した凹溝４が形成されてい
る。In the first embodiment shown in FIG. 1 and FIG.
Is a holding member. The holding member 2 is formed with a fitting portion 2a for fitting the lens 1, and furthermore, a through hole 2b through which a light beam passes is formed in the center of the holding member 2. Reference numeral 3 denotes a notch provided in the adhesive application portion of the holding member 2, and a concave groove 4 formed in a concave shape is formed on the bottom surface of the notch 3.
【００２２】この様に形成することにより、レンズ１を
嵌合部2aに嵌め込んで接着剤を切欠部３より接着処理す
ると、接着剤は保持部材２とレンズ１とを接着固定し、
余剰接着剤は切欠部３を通って底面の凹溝４に流れ込
む。この様に、切欠部３で接着処理することにより、レ
ンズ１の保持強度は接着剤の接着力と接着剤中の樹脂成
分の絡み付きにより大きな接着強度を確保することがで
き、余剰接着剤の凹溝４への流れ込みは毛細現象により
微小部分に留まって接着することができる。With this configuration, when the lens 1 is fitted into the fitting portion 2a and the adhesive is bonded through the cutout portion 3, the adhesive fixes the holding member 2 and the lens 1 together.
Excess adhesive flows through the notch 3 into the concave groove 4 on the bottom surface. As described above, by performing the bonding treatment at the notch portion 3, the holding strength of the lens 1 can secure a large bonding strength due to the bonding strength of the adhesive and the entanglement of the resin component in the bonding agent. The flow into the groove 4 can be adhered while remaining in a minute portion due to a capillary phenomenon.
【００２３】また、図中２個の切欠部３で接着処理した
が、使用接着剤の粘度や接着強度の設定に応じて複数個
の切欠部３を形成することもでき、また、切欠部３や凹
溝４の大きさなども接着剤によって決めることができ
る。Although the bonding process is performed at two notches 3 in the figure, a plurality of notches 3 can be formed according to the setting of the viscosity of the adhesive used and the adhesive strength. The size of the groove 4 or the like can also be determined by the adhesive.
【００２４】更に、上記切欠部３と凹溝４はレンズ１を
嵌合する嵌合部2aと貫通しないよう図２の断面図のよう
に形成されている。もし、切欠部３又は凹溝４が嵌合部
2aと貫通している場合、嵌合部2aに嵌め込んだレンズ１
の側面部と嵌合部2aの接触面より接着剤が浸透し、接着
剤が固まった時、接着剤が膨らんでレンズ１を浮き上が
らせてレンズ１の光軸が狂ってしまう可能性がある。Further, the notch 3 and the concave groove 4 are formed as shown in the sectional view of FIG. 2 so as not to penetrate the fitting portion 2a for fitting the lens 1. If the notch 3 or the concave groove 4 is
When penetrating through 2a, the lens 1 fitted into the fitting portion 2a
When the adhesive penetrates from the contact surface between the side surface portion and the fitting portion 2a, and the adhesive hardens, the adhesive expands and the lens 1 floats up, and the optical axis of the lens 1 may be deviated.
【００２５】この様に、接着剤塗布部に切欠部３と凹溝
４とを設けることにより、レンズ１の接着処理作業が簡
単になり、接着剤の外部への流れ出ることを気にせず、
適量の接着剤の塗布作業を行うことができる。As described above, by providing the cutout 3 and the concave groove 4 in the adhesive application portion, the bonding process of the lens 1 is simplified, and the flow of the adhesive to the outside is not considered.
An appropriate amount of adhesive can be applied.
【００２６】図３の「実施例２」において、10は保持部
材であり、この保持部材10にはレンズ１を嵌め込む嵌合
部10a が形成され、更に、保持部材10の中心部に光ビー
ムが通過する通過穴10b が形成されている。11は保持部
材10の接着剤塗布部に設けたタテ穴であり、このタテ穴
11の底面には保持部材10の側面部が開放して凹形に形成
した開放溝12が形成されている。In the second embodiment shown in FIG. 3, reference numeral 10 denotes a holding member. The holding member 10 has a fitting portion 10a into which the lens 1 is fitted. There is formed a passage hole 10b through which the holes pass. Reference numeral 11 denotes a vertical hole provided in the adhesive application portion of the holding member 10, and the vertical hole
An open groove 12 is formed in the bottom surface of the holding member 10 so that the side surface of the holding member 10 is open and formed in a concave shape.
【００２７】この様に形成することにより、前記「実施
例１」同様に、レンズ１を嵌合部10a に嵌め込んで接着
剤をタテ穴11部分より接着処理することによりレンズ１
は保持部材10に接着固定され、余剰接着剤はタテ穴11を
通って底面の開放溝12に流れ込んで接着剤の溜り部とし
て作用し、接着剤を保持部材10の外部に垂れ流すことを
防止し、レンズ１の接着強度は前記同様に強く確保する
ことができる。By forming the lens 1 in this manner, the lens 1 is fitted into the fitting portion 10a and an adhesive is bonded through the vertical hole 11 as in the first embodiment.
Is fixed to the holding member 10, and the excess adhesive flows into the open groove 12 on the bottom surface through the vertical hole 11 and acts as a reservoir for the adhesive, thereby preventing the adhesive from flowing out of the holding member 10. However, the bonding strength of the lens 1 can be ensured similarly to the above.
【００２８】また、図４及び図５の「実施例３」におい
て、20は保持部材であり、この保持部材20には前記同様
にレンズ１を嵌め込む嵌合部20a と光ビームが通過する
通過穴20b が形成されている。21は保持部材20の接着剤
塗布部に設けた突出部であり、22は上記突出部21の塗布
部に塗布した接着剤である。In the third embodiment shown in FIGS. 4 and 5, reference numeral 20 denotes a holding member. The holding member 20 has a fitting portion 20a for fitting the lens 1 and a light beam passing therethrough. A hole 20b is formed. Reference numeral 21 denotes a protrusion provided on the adhesive application portion of the holding member 20, and reference numeral 22 denotes an adhesive applied to the application portion of the protrusion 21.
【００２９】この様に接着剤塗布部に突出部21を形成す
ることにより、レンズ１と突出部21との接着剤22の塗布
面積が大きくなり、図５のように、より堅固に多くの接
着剤22によって接着強度を確保することができ、特に、
接着剤22の樹脂成分の絡み付きを利用することにより接
着剤22のレンズ１と突出部21との間の毛細管現象によっ
て、より強い接着強度と接着剤22の流れ出る余剰接着剤
22を限定することができ、保持部材20の側面外部への接
着剤22の垂れ流しを防止することができる。By forming the protruding portion 21 on the adhesive application portion in this manner, the application area of the adhesive 22 between the lens 1 and the protruding portion 21 becomes large, and as shown in FIG. The adhesive strength can be secured by the agent 22, especially,
By utilizing the entanglement of the resin component of the adhesive 22, the capillary action between the lens 1 and the protrusion 21 of the adhesive 22 increases the adhesive strength and the excess adhesive flowing out of the adhesive 22.
22 can be limited, and the adhesive 22 can be prevented from flowing down to the outside of the side surface of the holding member 20.
【００３０】図６及び図７の「実施例４」において、30
は保持部材であり、この保持部材30は前記同様にレンズ
１を嵌め込む嵌合部30a と光ビームが通過する通過穴40
b が形成されている。31は保持部材30の接着剤塗布部の
上端部の直径寸法を小さく形成した小径上端部であり、
この小径上端部31の下側側面に図のように全周に渡って
円周溝32が形成されている。In the "Example 4" of FIGS. 6 and 7, 30
Is a holding member. The holding member 30 has a fitting portion 30a for fitting the lens 1 and a through hole 40 through which a light beam passes, as described above.
b is formed. 31 is a small-diameter upper end formed by reducing the diameter of the upper end of the adhesive application portion of the holding member 30,
A circumferential groove 32 is formed on the lower side surface of the small-diameter upper end portion 31 over the entire circumference as shown in the figure.
【００３１】この様に上端部に小径上端部31と円周溝32
とを形成することにより、前記「実施例１又は２又は
３」同様に、嵌合部30a に嵌め込んだレンズ１を小径上
端部31の接着剤塗布部で接着処理することにより、レン
ズ１は保持部材30に接着固定される。上記、接着処理は
小径上端部31の全周に渡って接着剤塗布することがで
き、全周に渡って塗布した接着剤の余剰接着剤は円周溝
32に流れ込んで溜る。As described above, the small-diameter upper end portion 31 and the circumferential groove 32 are provided at the upper end portion.
As described in the first, second, or third embodiment, the lens 1 fitted in the fitting portion 30a is subjected to an adhesive treatment at the adhesive application portion of the small-diameter upper end portion 31, whereby the lens 1 is formed. It is adhesively fixed to the holding member 30. In the above-mentioned bonding process, the adhesive can be applied over the entire circumference of the small-diameter upper end portion 31, and the excess adhesive of the adhesive applied over the entire circumference is formed in a circumferential groove.
It flows into 32 and accumulates.
【００３２】この様に、レンズ１をより強く接着するた
め、レンズ１と小径上端部３１とを全周に渡って接着処
理することが可能であり、しかも、接着剤が円周溝３２
に溜って前記同様に接着剤の毛細管現象によって保持部
材３０の外部に垂れ流すことを防止することができる。As described above, since the lens 1 is more strongly bonded, the lens 1 and the small-diameter upper end portion 31 can be bonded over the entire circumference.
In the same manner as described above, it is possible to prevent the adhesive from flowing out of the holding member 30 due to the capillary action.
【００３３】以上、「実施例１〜４」について説明した
が、「実施例１及び２及び３」の切欠部３、タテ穴11、
突出部21は必要に応じて複数個を形成することができ、
接着剤の接着粘度や接着力及び接着剤に含有した樹脂成
分の絡み付きなどによって接着強度を設定することがで
きる。Although the first to fourth embodiments have been described above, the notch 3, the vertical hole 11, and the notch 3 of the first, second, and third embodiments have been described.
A plurality of protrusions 21 can be formed as necessary,
The adhesive strength can be set by the adhesive viscosity and adhesive strength of the adhesive and the entanglement of the resin component contained in the adhesive.
【００３４】また、レンズ１は丸型形状で説明したが、
レンズ１の形状は平角形の形成や他の多角形の形成のも
のでも応用することができ、更に、レンズ１の厚みにも
関係なく適応することができる。更に、レンズ１だけに
限らず他の小型部品、例えば、小型プリズムや小型樹脂
成型品などを接着処理して保持する保持部材として応用
することができる。Although the lens 1 has been described as having a round shape,
The shape of the lens 1 may be a rectangular shape or another polygonal shape, and may be adapted irrespective of the thickness of the lens 1. Further, the present invention can be applied as a holding member for holding not only the lens 1 but also other small parts, for example, small prisms and small resin molded products by bonding.
【００３５】[0035]
【考案の効果】この考案に係るレンズ保持部材の構造は
前述のように、保持部材を円形状の小型化を行って接着
面積の小さい接着剤塗布部でも、保持部材に設けた切欠
部や凹溝などによってレンズの接着強度を確保するよう
接着処理することができ、しかも、余剰接着剤の溜り部
を設け、余剰接着剤が保持部材の外部に流れ出ることを
未然に防止することができるという効果がある。As described above, the structure of the lens holding member according to the present invention is as described above. Adhesion treatment can be performed to secure the adhesive strength of the lens by grooves and the like, and a surplus adhesive reservoir is provided to prevent the excess adhesive from flowing out of the holding member beforehand. There is.
【００３６】また、保持部材の形状も従来と同様に製作
することができ、保持部材の接着剤塗布部の切欠部や凹
溝などの加工も金型製作時に簡単に盛り込むことが可能
であり、特別な設備を必要とせず製作コストを上げるこ
と無く処理することができるという効果もある。しか
も、構造が簡単であって、実施も容易であるなどの優れ
た特長を有している。Also, the shape of the holding member can be manufactured in the same manner as in the prior art, and the processing of the notch or the concave groove of the adhesive applied portion of the holding member can be easily included in the production of the mold. There is also an effect that the processing can be performed without requiring special equipment and without increasing the production cost. Moreover, it has excellent features such as simple structure and easy implementation.
【図１】この考案に係るレンズ保持部材の構造の「実施
例１」を示した分解斜視図である。FIG. 1 is an exploded perspective view showing “Example 1” of a structure of a lens holding member according to the present invention.
【図２】図１の「実施例１」の断面図である。FIG. 2 is a sectional view of “Example 1” in FIG. 1;
【図３】この考案の「実施例２」を示した斜視図であ
る。FIG. 3 is a perspective view showing a “second embodiment” of the present invention.
【図４】この考案の「実施例３」を示した斜視図であ
る。FIG. 4 is a perspective view showing a “third embodiment” of the present invention.
【図５】図４の断面図である。FIG. 5 is a sectional view of FIG. 4;
【図６】この考案の「実施例４」を示した斜視図であ
る。FIG. 6 is a perspective view showing “Example 4” of the present invention.
【図７】図６の断面図である。FIG. 7 is a sectional view of FIG. 6;
【図８】従来例を示した分解斜視図である。FIG. 8 is an exploded perspective view showing a conventional example.
【図９】図８の従来例のレンズを接着固定したレンズ保
持部材の斜視図である。9 is a perspective view of a lens holding member to which the lens of the conventional example of FIG. 8 is adhered and fixed.
【図１０】他の従来例を示した斜視図である。FIG. 10 is a perspective view showing another conventional example.
【図１１】更に他の従来例を示した斜視図である。FIG. 11 is a perspective view showing still another conventional example.
【図１２】図11の断面図である。FIG. 12 is a sectional view of FIG. 11;
【図１３】更に他の従来例を示した斜視図である。FIG. 13 is a perspective view showing still another conventional example.
１ レンズ ２ 保持部材 2a 保持部材に設けたレンズの嵌合部 2b 保持部材に設けた光ビームの通過穴 ３ 接着剤塗布部に設けた切欠部 ４ 切欠部底面に設けた凹溝 11 接着剤塗布部に設けたタテ穴 12 タテ穴底面に設けた開放溝 21 レンズ保持部材に設けた突出部 22 接着剤 31 保持部材上端部に設けた小径上端部 32 小径上端部下側に設けた円周溝 REFERENCE SIGNS LIST 1 lens 2 holding member 2a lens fitting portion provided on holding member 2b light beam passing hole provided on holding member 3 cutout portion provided in adhesive application portion 4 concave groove provided in cutout bottom surface 11 adhesive application Vertical hole provided on the bottom part 12 Open groove provided on the bottom surface of the vertical hole 21 Projection provided on the lens holding member 22 Adhesive 31 Small upper end provided on the upper end of the holding member 32 Circumferential groove provided below the small upper end
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G02B 7/00 G02B 7/18 G11B 7/12──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) G02B 7/00 G02B 7/18 G11B 7/12
Claims (4)
るレンズをレンズ保持部材に接着剤を用いて固定する構
造において、上記レンズ保持部材は、上面にレンズ嵌合
部を形成し、該上面の外周の複数箇所に前記レンズ嵌合
部と接しないように切欠部を形成し、この切欠部の底面
に連続して凹溝を形成し、前記上面に塗布する接着剤の
余剰分が前記切欠部および凹溝に流れ込むようにしたこ
とを特徴とするレンズ保持部材の構造。In a structure in which a lens for controlling a light beam of an optical recording / reproducing apparatus is fixed to a lens holding member using an adhesive, the lens holding member has a lens fitting portion formed on an upper surface thereof, and A notch is formed at a plurality of locations on the outer periphery of the notch so as not to contact the lens fitting portion, a concave groove is continuously formed on a bottom surface of the notch, and an excess of an adhesive applied to the top surface is the notch. The structure of the lens holding member, wherein the lens holding member flows into the portion and the concave groove.
るレンズをレンズ保持部材に接着剤を用いて固定する構
造において、上記レンズ保持部材は、上面にレンズ嵌合
部を形成し、該レンズ嵌合部の周囲に複数のタテ穴を形
成し、このタテ穴の底面と連続しかつレンズ保持部材外
周に開放する開放溝を形成し、前記上面に塗布する接着
剤の余剰分が前記タテ穴および開放溝に流れ込むように
したことを特徴とするレンズ保持部材の構造。2. A structure for fixing a lens for controlling a light beam of an optical recording / reproducing apparatus to a lens holding member using an adhesive, wherein the lens holding member has a lens fitting portion formed on an upper surface thereof, and A plurality of vertical holes are formed around the fitting portion, and an open groove is formed which is continuous with the bottom surface of the vertical hole and is open to the outer periphery of the lens holding member. And a lens holding member that flows into the open groove.
るレンズをレンズ保持部材に接着剤を用いて固定する構
造において、上記レンズ保持部材は、上面にレンズ嵌合
部を形成し、該上面の該レンズ嵌合部の周囲に複数の突
出部を近接形成し、前記上面に塗布する接着剤の塗布面
積を大きくすると共に、レンズ外周と前記突出部との間
の毛細管現象により、余剰接着剤がレンズ保持部材の側
面へ流れないようにしたことを特徴とするレンズ保持部
材の構造。3. A structure in which a lens for controlling a light beam of an optical recording / reproducing apparatus is fixed to a lens holding member using an adhesive, wherein the lens holding member has a lens fitting portion formed on an upper surface thereof. A plurality of protruding portions are formed in proximity to the lens fitting portion to increase an application area of an adhesive applied to the upper surface, and a surplus adhesive is formed by a capillary phenomenon between a lens outer periphery and the protruding portion. Is prevented from flowing to the side surface of the lens holding member.
るレンズをレンズ保持部材に接着剤を用いて固定する構
造において、上記レンズ保持部材は、上面にレンズ嵌合
部を形成し、上端部の直径寸法を小さくした小径上端部
を形成し、この小径上端部の下側外周側面に円周溝を形
成し、前記上面に塗布する接着剤の余剰分が前記円周溝
に流れ込むようにしたことを特徴とするレンズ保持部材
の構造。4. In a structure in which a lens for controlling a light beam of an optical recording / reproducing apparatus is fixed to a lens holding member using an adhesive, the lens holding member has a lens fitting portion formed on an upper surface, and an upper end portion. A small-diameter upper end portion having a reduced diameter dimension is formed, a circumferential groove is formed on the lower outer peripheral side surface of the small-diameter upper end portion, and an excess amount of the adhesive applied to the upper surface flows into the circumferential groove. A structure of a lens holding member characterized by the above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992034741U JP2588100Y2 (en) | 1992-05-25 | 1992-05-25 | Structure of lens holding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992034741U JP2588100Y2 (en) | 1992-05-25 | 1992-05-25 | Structure of lens holding member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0590415U JPH0590415U (en) | 1993-12-10 |
| JP2588100Y2 true JP2588100Y2 (en) | 1999-01-06 |
Family
ID=12422751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992034741U Expired - Lifetime JP2588100Y2 (en) | 1992-05-25 | 1992-05-25 | Structure of lens holding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2588100Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3442507B2 (en) * | 1994-10-20 | 2003-09-02 | 富士写真光機株式会社 | Lens mount structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157316U (en) * | 1984-09-20 | 1986-04-17 | ||
| JPS61121518U (en) * | 1985-01-18 | 1986-07-31 | ||
| JPS6365129U (en) * | 1986-10-17 | 1988-04-28 | ||
| JPS63223723A (en) * | 1987-03-13 | 1988-09-19 | Fujitsu Ltd | Structure for fixing photosemiconductor collimator |
| JPH03126003A (en) * | 1989-10-12 | 1991-05-29 | Toshiba Corp | Structure of fixing part for optical parts |
-
1992
- 1992-05-25 JP JP1992034741U patent/JP2588100Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0590415U (en) | 1993-12-10 |
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