【発明の詳細な説明】〔発明の利用分野〕本発明は、トーリックレンズならびに非球面レンズを形
成するのに好適なトーリック形状および非球面形状物体
の加工装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an apparatus for processing toric and aspherical objects suitable for forming toric lenses and aspherical lenses.
従来、トーリックレンズの加工は、特開昭６２−２０３
７４４に記載されているように、研磨皿を予め加工すべ
きレンズ形状と相反関係をなす形状に加工しておき、こ
の研磨皿をガラス素材に押しあて、砥粒を研磨皿とガラ
ス素材のすき間に供給し、こすり合わせる光学研磨法か
とられていた上記従来技術は、第３図の破線で示される
ようなトーリック形状のみしか加工てきないが、例えば
レーザビームプリンタなどの用途においては、トーリッ
ク形状から同図の実線で示されるようなわずかに偏差を
もたせた面を有する変形トーリックレンズを用いること
により、光学的な結像性能を向上できることがわかって
いる。第２図は、そのトーリック面および非球面加工装
置の構成を示している。Traditionally, toric lenses were processed using Japanese Patent Application Laid-Open No. 62-203.
As described in 744, a polishing plate is processed in advance into a shape that has a reciprocal relationship with the shape of the lens to be processed, and this polishing plate is pressed against a glass material, and the abrasive grains are spread between the gap between the polishing plate and the glass material. The above-mentioned conventional technique, which uses an optical polishing method in which the material is supplied and rubbed, can only process toric shapes as shown by the broken line in Figure 3. However, in applications such as laser beam printers, for example, it is possible to process It has been found that optical imaging performance can be improved by using a modified toric lens having a slightly deviated surface as shown by the solid line in the figure. FIG. 2 shows the configuration of the toric surface and aspheric surface processing apparatus.
ワーク（被加工物）１は、モータ１２により回転する回
転テーブル２に設けられ、該回転テーブル２は、前後に
移動可能な直進テーブル３上に設けられいる。この直進
テーブル３を駆動するために、ピエゾアクチュエータ４
が用いられる。一方、ワーク１を加工するために、砥石
５が用いられるが、この砥石５は、エアスピンドル６に
取り付けられて、１０．ＯＯＯｒｐｍはどの回転数で、
高精度に回転する。また、エアスピンドル６は、その回
転軸と平行に設置されたエアスピンドル保持軸９を中心
としてウオーム７、ウオームホイール８により、円弧状
に揺動できるように構成されている。エアスピンドル保
持軸９は、アンギュラコンタクト形ころがり軸受２１を
介して、支持部材２０ａ、２０ｂにより、その両端が固
定されている。A workpiece (workpiece) 1 is provided on a rotary table 2 that is rotated by a motor 12, and the rotary table 2 is provided on a linear table 3 that is movable back and forth. In order to drive this linear table 3, a piezo actuator 4 is used.
is used. On the other hand, in order to process the workpiece 1, a grindstone 5 is used, and this grindstone 5 is attached to an air spindle 6. What rotation speed is OOOrpm?
Rotates with high precision. Further, the air spindle 6 is configured to be able to swing in an arc shape by a worm 7 and a worm wheel 8 around an air spindle holding shaft 9 installed parallel to its rotation axis. The air spindle holding shaft 9 is fixed at both ends by support members 20a and 20b via angular contact type rolling bearings 21.
上記、加工装置において、トーリック形状および非球面
形状物体を加工するのに、荒加工と仕上加工の２工程を
行なう。この２工程間で、荒加工用砥石と仕上加工用砥
石を交換する時に起因する砥石とワークとの位置変動が
、仕上加工時の切込量ばらつきとなり、ワークの表面形
状の形状精度に影響をおよぼす。In the processing apparatus described above, two steps, rough processing and finishing processing, are performed to process toric-shaped and aspherical objects. Between these two processes, the positional fluctuation between the grinding wheel and the workpiece caused when the roughing grinding wheel and the finishing grinding wheel are exchanged causes variations in the depth of cut during finishing processing, which affects the shape accuracy of the surface shape of the workpiece. I will give you.
本発明は、荒加工から仕上加工への移行時に起因する砥
石とワークとの位置変動をなくし、砥石とワークとの相
対関係を常に一定に保たせることにより、形状精度の高
いトーリック面および非球面を加工するのに、好適なト
ーリック形状および非球面形状レンズの加工装置を提供
することにある。The present invention eliminates positional fluctuations between the grinding wheel and workpiece that occur during the transition from rough machining to finishing machining, and by keeping the relative relationship between the grinding wheel and workpiece constant, the toric surface and aspheric surface with high shape accuracy can be produced. It is an object of the present invention to provide a processing apparatus for toric and aspheric lenses suitable for processing lenses.
上記目的を達成するために、本発明は、前述の装置にお
いて、荒加工用と仕上加工用の２枚実装回転砥石を用い
る手段と、上記砥石スピンドルを砥石スピンドル軸方向
に移動させ、荒加工から仕上加工までを自動運動させる
手段を設けたものである。In order to achieve the above object, the present invention provides a means for using two rotary grindstones for rough machining and finish machining in the above-mentioned apparatus, and for moving the abrasive spindle in the axial direction of the grindstone spindle, from rough machining to rough machining. It is equipped with a means for automatic movement up to finishing machining.
前述の装置において、上記２枚実装回転砥石を用い、こ
の２枚実装回転砥石を同時ドレッシングすることにより
、同一外径とする。まず、荒加工用砥石にて荒加工終了
後、上記砥石スピンドルを砥石スピンドル軸方向に移動
させ、仕上加工を開始させる。すると荒加工用砥石を仕
上加工用砥石に段取替することなく、砥石とワークとの
相対関係を変動することなく一定となるので、高い形状
精度を有するトーリック形状および非球面形状物体が加
工できる。In the above-mentioned apparatus, the two-piece rotary grindstone is used and the two-piece rotary grindstone is simultaneously dressed to have the same outer diameter. First, after rough machining is completed using a rough machining whetstone, the above-mentioned whetstone spindle is moved in the axial direction of the whetstone spindle, and finishing machining is started. This allows the relative relationship between the grindstone and the workpiece to remain constant without changing without changing the roughing wheel to the finishing wheel, making it possible to process toric and aspherical objects with high shape accuracy. .
以下、本発明の一実施例を第１図により説明する。An embodiment of the present invention will be described below with reference to FIG.
第１図は、本発明に係る非球面レンズの加工装置の構成
を示している。図中の番号は第２図のものと一致する。FIG. 1 shows the configuration of an aspheric lens processing apparatus according to the present invention. The numbers in the figure correspond to those in FIG.
ワーク１を加工するために、荒加工用砥石５ａと仕上加
工用砥石５ｂの２枚実装回転砥石５が用いられるが、こ
の砥石５はエアスピンドル６に取り付けられて、１０．
ＯＯＯｒｐｍはどの回転数で、高精度に回転する。この
２枚実装回転砥石５は、２枚同時ドレッシングされるこ
とにより同一外径となる。また、エアスピンドル６は、
その回転軸と平行に設置されたエアスピンドル保持軸９
を中心として、ウオーム７、ウオームホイール８により
、円弧状に揺動できるように構成されている。エアスピ
ンドル保持軸９はアンギュラコンタクト形ころがり軸受
２１を介して、支持部材２０ａ、２０ｂにより、その両
端が固定されている。これらは、スピンドルベース３０
上に構成され、このスピンドルベース３０は、■溝すベ
リ案内３１を介し、スピンドルベース送りモータ３２に
て、砥石スピンドル軸方向に移動する。この時、位置の
検出はフォトマイクロセンサ３３にて行なう。In order to process the workpiece 1, a two-piece rotary grindstone 5 is used, which is a rough processing grindstone 5a and a finishing grindstone 5b.This grindstone 5 is attached to an air spindle 6, and 10.
OOOrpm rotates with high precision at which rotation speed. These two mounted rotary grindstones 5 have the same outer diameter by dressing the two at the same time. In addition, the air spindle 6 is
Air spindle holding shaft 9 installed parallel to its rotation axis
It is configured to be able to swing in an arc shape with a worm 7 and a worm wheel 8 as the center. The air spindle holding shaft 9 is fixed at both ends by support members 20a and 20b via angular contact type rolling bearings 21. These are spindle base 30
This spindle base 30 is moved in the axial direction of the grindstone spindle by a spindle base feed motor 32 via a groove guide 31. At this time, the position is detected by the photomicrosensor 33.
さて、トーリック形状および非球面形状物体の加工にお
いて、荒加工終了後、スピンドルベース送りモータ３２
にて砥石スピンドルを砥石スピンドル軸方向に移動させ
、仕上加工を開始することができる。このことにより荒
加工用砥石を仕上加工用砥石に交換することなく、砥石
とワークとの相対関係を変動させることなく一定となる
ので、高い形状精度を有するトーリック形状および非球
面形状物体が加工できる。Now, in machining toric and aspherical objects, after rough machining, the spindle base feed motor 32
The grindstone spindle can be moved in the axial direction of the grindstone spindle at , and finishing processing can be started. This allows the relative relationship between the grindstone and the workpiece to remain constant without changing the rough machining whetstone for a finishing whetstone, making it possible to machine toric and aspherical objects with high shape accuracy. .
ここでは、砥石５を荒加工用砥石５ａと仕上加工用砥石
５ｂの２枚実装回転砥石に本発明を適用したが、数枚実
装回転砥石および１枚の回転砥石での数カ所使用等にお
いても、本発明を適用できる。Here, the present invention is applied to a two-piece rotary whetstone 5, which is a rough machining whetstone 5a and a finishing whetstone 5b, but the present invention can also be applied to a multiple-width rotary whetstone or a single rotary whetstone used at several locations. The present invention can be applied.
本発明によれば、形状精度の高いトーリック形状および
非球面形状物体の荒加工から仕上加工までの自動加工が
可能となり、このようなレンズ加工の実用化を可能とす
ることができる。According to the present invention, automatic machining from rough machining to finishing machining of toric and aspherical objects with high shape accuracy is possible, and it is possible to put such lens machining into practical use.
第１図は、本発明の非球面レンズ加工装置を示す斜視図
、第２図は、非球面レンズ加工装置を示す斜視図、第３
図は、非球面レンズの形状を示す斜視図である。図において、１はワーク、２は回転テーブル。３は直進テーブル、４はピエゾアクチュエータ、５ａは
荒加工用砥石、５ｂは仕上加工用砥石、６はエアスピン
ドル、７はウオーム、８はウオームホイール、９はスピ
ンドル保持軸、１１は加工データ、１２はモータ、１３
はロータリエンコータ１４はパルスモータ、１５は非接
触変位計、１６はレンズ、２０ａ、２０ｂは支持部材、
２１はアンギュラコンタクト形ころがり軸受、３０はス
ピンドルベース、３１はＶ溝ずヘリ案内、３２はスピン
ドルベース送りモータ、３３はフォトマイクロセンサで
ある。揉ｆ”−’！ＩＩ Ａ ＃ ＄ ｆ ４゛Ｊ’ｌ ｍ
＊Ｎ芋図／ｌすFIG. 1 is a perspective view showing an aspherical lens processing apparatus of the present invention, FIG. 2 is a perspective view showing an aspherical lens processing apparatus, and FIG.
The figure is a perspective view showing the shape of an aspherical lens. In the figure, 1 is a workpiece, and 2 is a rotary table. 3 is a linear table, 4 is a piezo actuator, 5a is a roughing grindstone, 5b is a finishing grindstone, 6 is an air spindle, 7 is a worm, 8 is a worm wheel, 9 is a spindle holding shaft, 11 is processing data, 12 is the motor, 13
The rotary encoder 14 is a pulse motor, 15 is a non-contact displacement meter, 16 is a lens, 20a and 20b are support members,
21 is an angular contact type rolling bearing, 30 is a spindle base, 31 is a V-groove helical guide, 32 is a spindle base feed motor, and 33 is a photomicrosensor.揉f"-'! II A # $ f 4゛J'l m
*N potato map/l
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13384090AJP2875344B2 (en) | 1990-05-25 | 1990-05-25 | Processing apparatus and processing method for toric and aspheric lenses |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13384090AJP2875344B2 (en) | 1990-05-25 | 1990-05-25 | Processing apparatus and processing method for toric and aspheric lenses |
| Publication Number | Publication Date |
|---|---|
| JPH0430961Atrue JPH0430961A (en) | 1992-02-03 |
| JP2875344B2 JP2875344B2 (en) | 1999-03-31 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13384090AExpired - LifetimeJP2875344B2 (en) | 1990-05-25 | 1990-05-25 | Processing apparatus and processing method for toric and aspheric lenses |
| Country | Link |
|---|---|
| JP (1) | JP2875344B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62129226A (en)* | 1985-11-29 | 1987-06-11 | バイオマトリツクス、インコ−ポレ−テツド | Drug release system depending on hyaluronane, derivatives ortheir salts and manufacture |
| US6334729B1 (en) | 1999-03-31 | 2002-01-01 | Suzuno Kasei Kabushiki Kaisha | Cosmetic container and cartridge for cosmetic container |
| US6543952B1 (en) | 1998-11-02 | 2003-04-08 | Suzuno Kasei Kabushiki Kaisha | Cosmetic material vessel and cosmetic material vessel cartridge |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62129226A (en)* | 1985-11-29 | 1987-06-11 | バイオマトリツクス、インコ−ポレ−テツド | Drug release system depending on hyaluronane, derivatives ortheir salts and manufacture |
| US6543952B1 (en) | 1998-11-02 | 2003-04-08 | Suzuno Kasei Kabushiki Kaisha | Cosmetic material vessel and cosmetic material vessel cartridge |
| US6334729B1 (en) | 1999-03-31 | 2002-01-01 | Suzuno Kasei Kabushiki Kaisha | Cosmetic container and cartridge for cosmetic container |
| Publication number | Publication date |
|---|---|
| JP2875344B2 (en) | 1999-03-31 |
| Publication | Publication Date | Title |
|---|---|---|
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