JP2596057B2 - Lens polishing equipment - Google Patents
Lens polishing equipmentInfo
- Publication number
- JP2596057B2 JP2596057B2 JP9102888A JP9102888A JP2596057B2 JP 2596057 B2 JP2596057 B2 JP 2596057B2 JP 9102888 A JP9102888 A JP 9102888A JP 9102888 A JP9102888 A JP 9102888A JP 2596057 B2 JP2596057 B2 JP 2596057B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- polishing
- polished
- circumferential
- groove
- 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
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はレンズ研磨装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a lens polishing apparatus.
従来の技術 従来のレンズ研磨装置は、第３図に示すように、軸心
が傾斜し且つこの軸心回りに回転駆動される椀状の研磨
皿31と、研磨皿31の研磨球面31a上に置かれた被研磨レ
ンズ32を回転自在且つ揺動自在に保持してこれを研磨球
面31aに圧接するレンズ保持手段33とを備えている。レ
ンズ保持手段33は被研磨レンズ32を保持するレンズホル
ダ34と、このレンズホルダ34を軸心回りに回転自在に支
持すると共に自身が枢軸36回りに揺動自在に支持されて
いる加圧ピン35とを備えている。2. Description of the Related Art As shown in FIG. 3, a conventional lens polishing apparatus has a bowl-shaped polishing plate 31 whose axis is inclined and is driven to rotate around this axis, and a polishing spherical surface 31a of the polishing plate 31. There is provided lens holding means 33 for holding the lens 32 to be polished rotatably and swingably and pressing the lens 32 against the polished spherical surface 31a. The lens holding means 33 includes a lens holder 34 for holding the lens 32 to be polished, and a pressure pin 35 which supports the lens holder 34 so as to be rotatable around an axis and is swingable about a pivot 36. And
発明が解決しようとする課題 ところで上記従来のレンズ研磨装置によれば、１個づ
つしかレンズ研磨を行うことができず生産性に問題があ
る。Problems to be Solved by the Invention According to the above-mentioned conventional lens polishing apparatus, only one lens can be polished at a time, and there is a problem in productivity.
また研磨皿31の研磨球面31aは半球面状に形成されて
いるので、その曲面精度を維持するために行う再生研磨
が複雑になり高コストとなる。Further, since the polishing spherical surface 31a of the polishing plate 31 is formed in a hemispherical shape, the regeneration polishing performed to maintain the curved surface accuracy becomes complicated, and the cost becomes high.
課題を解決するための手段 本発明は上記課題を解決するために、回転研磨ディス
クの表面にその回転軸心を中心とする円周に沿って、横
断面形状が被研磨レンズの形成曲面と合致する円弧とな
る円周研磨溝を設けると共に、円周研磨溝の上方にその
円周方向に沿って、被研磨レンズを回転自在且つ揺動自
在に保持して前記円周研磨溝に圧接するレンズ保持手段
を複数個配設したことを特徴とする。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a rotating abrasive disc having a cross-sectional shape conforming to a curved surface of a lens to be polished along a circumference around a rotation axis of the disk. A lens which is provided with a circumferential polishing groove which forms an arc to be formed, and which holds the lens to be polished rotatably and swingably along the circumferential direction above the circumferential polishing groove and presses against the circumferential polishing groove. A plurality of holding means are provided.
作 用 本発明によると、回転研磨ディスク１の円周研磨溝２
上に複数の被研磨レンズ３を配して、これらのレンズ研
磨を同時に行うことができる。各種研磨レンズ３は、レ
ンズ保持手段４によって回転自在に保持されると共に前
記円周研磨溝２に圧接されており、第１図及び第２図に
示すように、回転研磨ディスク１が回転すると、被研磨
レンズ３の内周側Ｉの周速度Viと外周側Ｏの周速度Voと
に差が生じ、（Vo−Vi）の回転速度で被研磨レンズ３が
自転しつつ、すり合わせ研磨が行われる。このため円周
研磨溝２はその横断面形状が円弧である二次曲面である
にもかかわらず、被研磨レンズ３の全曲面を均一に研磨
することが可能となる。また各被研磨レンズ３は、レン
ズ保持手段４によって揺動自在に保持され、前記円周研
磨溝２の研磨面2a上を揺動するので、研磨面2aの広い範
囲を利用してのレンズ研磨が可能となる。According to the present invention, the circumferential polishing groove 2 of the rotary polishing disc 1
A plurality of lenses to be polished 3 are arranged on the upper side, and these lenses can be polished simultaneously. The various polishing lenses 3 are rotatably held by lens holding means 4 and pressed against the circumferential polishing grooves 2, and as shown in FIGS. 1 and 2, when the rotary polishing disc 1 rotates, difference between the peripheral velocity V o of the peripheral velocity V i and the outer periphery side O of the inner circumferential side I of the polished lens 3 occurs while rotating the polished lens 3 at a rotational speed of (V o -V i), ground glass Polishing is performed. For this reason, it is possible to uniformly polish the entire curved surface of the lens 3 to be polished, although the circumferential polishing groove 2 is a quadratic curved surface whose cross-sectional shape is an arc. Each lens 3 to be polished is swingably held by lens holding means 4 and swings on the polishing surface 2a of the circumferential polishing groove 2, so that lens polishing using a wide range of the polishing surface 2a is performed. Becomes possible.
又円周研磨溝２は二次曲面であるので、従来の研磨皿
３が三次曲面（球面）であることに比較して、その曲面
精度を維持するために行う再生研磨が容易となる。そし
て複数個のレンズ保持手段４の内の１つを利用し、これ
に再生用工具を保持させて、円周研磨溝２の再生を行え
ば、レンズ研磨加工と同時に研磨面再生を行うことが可
能となる。In addition, since the circumferential polishing groove 2 has a secondary curved surface, the regeneration polishing performed to maintain the accuracy of the curved surface becomes easier as compared with the conventional polishing plate 3 having a cubic curved surface (spherical surface). Then, if one of the plurality of lens holding means 4 is used, and a tool for regeneration is held on this, and the circumferential polishing groove 2 is regenerated, the polishing surface can be regenerated simultaneously with the lens polishing. It becomes possible.
実施例 第１図及び第２図に示す本発明の実施例は、回転研磨
ディスク１の円周研磨溝２上に、90゜間隔で４個のレン
ズ保持手段４を配設したものである。Embodiment The embodiment of the present invention shown in FIGS. 1 and 2 is such that four lens holding means 4 are arranged at 90 ° intervals on a circumferential polishing groove 2 of a rotary polishing disk 1.
回転研磨ディスク１は鉛直回転軸部５上にこれを中心
とする円盤部６を一体形成してなり、この円盤部６の上
面に前記鉛直回転軸部５を中心とする円周に沿って、円
周研磨溝２を形成したものである。円周研磨溝２の横断
面形状は第２図に示すように被研磨レンズ３の形成曲面
と合致する円弧となっている。この横断面円弧状の研磨
面2aは、円周方向のすべての位置において同一形状横断
面を有する二次曲面であって、ポリウレタンシート面と
なっている。回転研磨ディスク１は図示しないモータに
よって駆動され、矢印で示す方向に回転する。The rotary polishing disk 1 is formed integrally with a disk portion 6 centered on a vertical rotation shaft portion 5, and on the upper surface of the disk portion 6 along a circumference centered on the vertical rotation shaft portion 5, The circumferential polishing groove 2 is formed. The cross-sectional shape of the circumferential polishing groove 2 is an arc that matches the curved surface of the lens 3 to be polished as shown in FIG. The arc-shaped polishing surface 2a having a circular cross section is a quadratic curved surface having the same shape cross section at all positions in the circumferential direction, and is a polyurethane sheet surface. The rotating polishing disk 1 is driven by a motor (not shown) and rotates in a direction indicated by an arrow.
前記円周研磨溝２の上方には、90゜間隔で４個のレン
ズ保持手段４が配設されている。各レンズ保持手段４
は、被研磨レンズ３を保持するレンズホルダ７と、この
レンズホルダ７を軸心回りに回転自在に支持すると共に
自身が枢軸８回りに揺動自在に支持されている加圧ピン
９とを備えている。前記レンズホルダ７はその下面に凹
設されたレンズ保持空間10で被研磨レンズ３を保持し、
又その上面中央に形成された凹部11に加圧ピン９の下端
ピン部12がピボット接触する。Above the circumferential polishing groove 2, four lens holding means 4 are arranged at 90 ° intervals. Each lens holding means 4
Comprises a lens holder 7 for holding the lens 3 to be polished, and a pressure pin 9 for supporting the lens holder 7 so as to be rotatable around the axis and swinging about a pivot 8. ing. The lens holder 7 holds the lens 3 to be polished in a lens holding space 10 recessed in the lower surface thereof.
The lower end pin portion 12 of the pressure pin 9 pivotally contacts the concave portion 11 formed at the center of the upper surface.
前記回転研磨ディスク１が回転すると、各レンズ保持
手段４によって前記研磨面2a上に圧接されている被研磨
レンズ３は、自転しつつすり合わせ研磨がなされ、所定
の曲面に形成される。このとき同時に前記枢軸８を中心
として回転研磨ディスク１の半径方向に、被研磨レンズ
３は揺動する。なお、レンズ研磨作業中には研磨液が研
磨液供給管13から供給される。When the rotary polishing disk 1 rotates, the lens 3 to be polished pressed against the polishing surface 2a by the lens holding means 4 is polished and polished while rotating to form a predetermined curved surface. At this time, the lens 3 to be polished swings at the same time in the radial direction of the rotary polishing disk 1 about the pivot 8. The polishing liquid is supplied from the polishing liquid supply pipe 13 during the lens polishing operation.
本装置を用いて同時に４個の被研磨レンズ３の研磨を
行うことができるが、より好ましくは、第１図に示すよ
うに４個のレンズ保持手段４の内の３つに被研磨レンズ
３を保持し、残りの１つに再生用工具14を保持すること
により、レンズ研磨加工と同時に、研磨面2aを修正し曲
面精度を維持する研磨面再生を行うようにすればよい。The present apparatus can simultaneously polish the four lenses 3 to be polished. More preferably, three of the four lens holding means 4 are used to polish the lenses 3 as shown in FIG. By holding the reproduction tool 14 on the remaining one, the polishing surface 2a may be corrected and the polished surface regeneration for maintaining the curved surface accuracy may be performed simultaneously with the lens polishing process.
発明の効果 本発明によれば、同時に複数個のレンズ研磨を行うこ
とができて生産性の向上を図ることができると共に、研
磨面の再生が容易なレンズ研磨装置を提供することがで
きる。Effect of the Invention According to the present invention, it is possible to provide a lens polishing apparatus that can simultaneously perform polishing of a plurality of lenses, improve productivity, and easily regenerate a polished surface.
第１図は本発明の実施例の斜視図、第２図はその断面
図、第３図は従来例の断面図である。 １……回転研磨ディスク ２……円周研磨溝 ３……被研磨レンズ ４……レンズ保持手段。FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view thereof, and FIG. 3 is a sectional view of a conventional example. 1 ... Rotary polishing disc 2 ... Circumferential polishing groove 3 ... Lens to be polished 4 ... Lens holding means
Claims (1)
中心とする円周に沿って、横断面形状が被研磨レンズの
形成曲面と合致する円弧となる円周研磨溝を設けると共
に、円周研磨溝の上方にその円周方向に沿って、被研磨
レンズを回転自在且つ揺動自在に保持して前記円周研磨
溝に圧接するレンズ保持手段を複数個配設したことを特
徴とするレンズ研磨装置。1. A rotary polishing disk is provided with a circumferential polishing groove having a circular cross-section along a circumference centered on a rotation axis of the rotary polishing disk, the cross-sectional shape conforming to a curved surface of a lens to be polished. A plurality of lens holding means for holding the lens to be polished rotatably and swingably and pressing against the circumferential polishing groove are provided above the circumferential polishing groove along the circumferential direction thereof. Lens polishing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9102888A JP2596057B2 (en) | 1988-04-13 | 1988-04-13 | Lens polishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9102888A JP2596057B2 (en) | 1988-04-13 | 1988-04-13 | Lens polishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01264756A JPH01264756A (en) | 1989-10-23 |
| JP2596057B2 true JP2596057B2 (en) | 1997-04-02 |
Family
ID=14015068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9102888A Expired - Lifetime JP2596057B2 (en) | 1988-04-13 | 1988-04-13 | Lens polishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596057B2 (en) |
-
1988
- 1988-04-13 JP JP9102888A patent/JP2596057B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01264756A (en) | 1989-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3659671B2 (en) | Optical fiber end face polishing machine and polishing method | |
| US5800253A (en) | Disc streak pattern forming method and apparatus | |
| JP2596057B2 (en) | Lens polishing equipment | |
| JPS6234762A (en) | Polishing machine for convex endface of optical connector core | |
| JP3389014B2 (en) | Mirror chamfering method for disk-shaped semiconductor wafer chamfer | |
| JPS61192460A (en) | Grinding method for end face of optical connector core into convex spherical surface | |
| KR940009089B1 (en) | Circumferential pattern finishing machine and method | |
| JPH085002B2 (en) | Spherical honing method | |
| JP3631281B2 (en) | Lens groove processing equipment | |
| SU709326A1 (en) | Dividing device | |
| US3835596A (en) | Apparatus for and method of removing material from a flexible contact lens | |
| JPH04240071A (en) | Method and device for polishing ring-shaped grinder element | |
| JPH03221362A (en) | Toric face polishing device | |
| JP2907856B2 (en) | Dressing method of grinding wheel | |
| CA1242076A (en) | Means for sharpening a studded rock drill crown | |
| JP3738571B2 (en) | Machining method and machining apparatus for cam surface of loading cam device | |
| JP2662557B2 (en) | Lens grinding method | |
| JP3050774U (en) | Supporting device for material to be ground in circumferential grinding machine | |
| JPS6320535Y2 (en) | ||
| JPS6362337B2 (en) | ||
| JPH07195275A (en) | End edge part grinding-polishing method of grinding wheel and glass plate and device thereof | |
| JPS60242948A (en) | Bevelling method | |
| JP2000052230A5 (en) | ||
| JPH0665460B2 (en) | Polishing Holder Mechanism in Lens Polishing Device | |
| JPH08243903A (en) | Polishing device for axially eccentric lens |