JPH0229525Y2 - - Google Patents
Info
- Publication number
- JPH0229525Y2 JPH0229525Y2 JP1982069216U JP6921682U JPH0229525Y2 JP H0229525 Y2 JPH0229525 Y2 JP H0229525Y2 JP 1982069216 U JP1982069216 U JP 1982069216U JP 6921682 U JP6921682 U JP 6921682U JP H0229525 Y2 JPH0229525 Y2 JP H0229525Y2
- Authority
- JP
- Japan
- Prior art keywords
- holder
- screw
- screws
- pivot
- sides
- 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
Links
- 230000037431 insertion Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
【考案の詳細な説明】
本考案は、レーザービームで信号を記録するカ
ツテイングマシンにおけるレンズ駆動素子の取付
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting device for a lens drive element in a cutting machine that records signals with a laser beam.
ホトレジストを表面に塗布したガラス原盤を回
転させ、レーザービームで信号を記録するビデオ
デイスクその他の高密度記録デイスクのカツテイ
ングマシンにおいては、ガラス原盤表面にレーザ
ービームを絞つて照射させるために記録レンズが
用いられる。そしてガラス原盤の面ぶれに対して
常に記録レンズの焦点位置をガラス原盤表面に追
従させるために、記録レンズはある種のアクチユ
エータでサーボ駆動されている。それは、例えば
ボイスコイルタイプのリニアモータ駆動素子の様
なもので、その可動部分に前記記録レンズが固定
されている。この様なレンズ駆動素子を装置に取
付ける場合、記録レンズの光軸をガラス原盤面に
垂直にセツトする必要があり、そのためにはレン
ズ駆動素子をＸ、Ｙ、Ｚ軸の３軸の囲りに回転位
置調整可能にしなければならない。これは、記録
レンズの光軸とレンズ駆動素子の取付面の垂直又
は平行度、およびレンズ駆動素子の取付面とガラ
ス原盤を載置するターンテーブルの面の垂直又は
平行度を精度良く出すのは一般にむづかしいから
である。 In cutting machines for video disks and other high-density recording disks that rotate a glass master disk whose surface is coated with photoresist and record signals with a laser beam, a recording lens is used to focus and irradiate the laser beam onto the surface of the glass master disk. used. The recording lens is servo-driven by a certain type of actuator in order to make the focal position of the recording lens always follow the surface of the glass master disk in response to surface fluctuations of the glass master disk. This is, for example, a voice coil type linear motor driving element, and the recording lens is fixed to its movable part. When installing such a lens drive element in a device, it is necessary to set the optical axis of the recording lens perpendicular to the surface of the glass master disk. It shall be possible to adjust the rotational position. This is to accurately determine the perpendicularity or parallelism between the optical axis of the recording lens and the mounting surface of the lens drive element, and the perpendicularity or parallelism between the mounting surface of the lens drive element and the surface of the turntable on which the glass master is placed. This is because it is generally difficult.
従来のレンズ駆動素子の取付装置としては、レ
ンズ駆動素子のホルダーにピボツト軸受を設けた
ものはあつたが、３軸の囲りに回転できるだけで
なく安定した固定が可能なものはなかつた。レン
ズ駆動素子を固定支持する部分が不安定であつた
り、歪を持つたりすると、その部分で共振を起
し、レンズ駆動素子の特性に悪影響を与え、好ま
しくないのである。 Although there have been conventional lens drive element mounting devices in which the holder of the lens drive element is provided with a pivot bearing, there has been none that can not only rotate around three axes but also stably fix the lens drive element. If the part that fixedly supports the lens drive element is unstable or has distortion, resonance will occur in that part, which will adversely affect the characteristics of the lens drive element, which is undesirable.
本考案はかかる問題点に鑑み、レンズ駆動素子
を３軸の囲りに回転できしかも安定的に固定でき
る取付装置の提供を目的とする。 In view of these problems, the present invention aims to provide a mounting device that can rotate the lens drive element around three axes and stably fix the lens drive element.
本考案は、この目的達成のため、球面ピボツト
を有するレンズ駆動素子のホルダーと前記球面ピ
ボツトが嵌合するピボツト軸受を有する固定部と
により、固定部に対してホルダーを３軸まわりに
回転できる様にし、また前記球面ピボツトの囲り
に配置されて前記固定部の雌ねじに螺合されたね
じにてホルダーを固定する様にし、さらにこのね
じの頭部に球面を有し他側面はホルダーに当接す
る平面であるホルダー押圧片を介装することによ
り３軸まわりの任意の回転位置でホルダーを安定
的に固定できる様にしたレンズ駆動素子の取付装
置を提供する。 In order to achieve this objective, the present invention uses a holder for a lens driving element having a spherical pivot and a fixed part having a pivot bearing into which the spherical pivot fits, so that the holder can be rotated around three axes relative to the fixed part. Further, the holder is fixed by a screw arranged around the spherical pivot and screwed into the female thread of the fixing part, and furthermore, the head of this screw has a spherical surface and the other side is in contact with the holder. To provide a lens drive element mounting device that can stably fix a holder at any rotational position around three axes by interposing a holder pressing piece that is a contacting plane.
以下、本考案の一実施例を図面に基づいて説明
すると、１はホトレジストを表面に塗布したガラ
ス原盤、２は記録レンズ、３は記録レンズ２を保
持して上下方向（図の座標でＹ軸方向）に駆動さ
れるレンズ駆動素子であり、４ａはレンズ駆動素
子３をホルダー５に固定する固定ねじである。ホ
ルダー５は、第３図に示す様なＬ型の形状をして
おり、水平部分にレンズ駆動素子３が入る切欠が
設けられている。４ｂは固定ねじ４ａが螺合する
雌ねじである。ホルダー５の垂直部分の中央部に
は、先端に鋼球を固定したピボツトねじ６が背面
側に向かつて螺通してあり、こののピボツトねじ
６の鋼球をホルダー５の背面側に重ね合わせ状態
で配設した板状固定部７の中央部に設けているピ
ボツト軸受１６に嵌合させてある。さらに、前記
ピボツトねじ６を中央にしてホルダー５の外周部
の少なくとも三方にねじ挿通孔１８を設けてあ
り、これらのねじ挿通孔１８に夫々ねじ８ａ，８
ｂ，８ｃ，８ｄを挿通してその先端部を各ねじに
対応して前記固定部７に設けている雌ねじ１７に
螺合させてある。なお、各ねじ８ａ〜８ｃの軸部
は、挿通孔１８よりも小径に形成されてある。 Hereinafter, one embodiment of the present invention will be explained based on the drawings. 1 is a glass master disk whose surface is coated with photoresist, 2 is a recording lens, and 3 is a recording lens 2 which is held in the vertical direction (Y-axis in coordinates in the figure). 4a is a fixing screw that fixes the lens drive element 3 to the holder 5. The holder 5 has an L-shape as shown in FIG. 3, and has a notch in the horizontal portion into which the lens drive element 3 is inserted. 4b is a female thread into which the fixing screw 4a is screwed. In the center of the vertical part of the holder 5, a pivot screw 6 with a steel ball fixed at the tip is threaded toward the back side, and the steel balls of the pivot screw 6 are superimposed on the back side of the holder 5. It is fitted into a pivot bearing 16 provided at the center of a plate-shaped fixing part 7 arranged at. Furthermore, screw insertion holes 18 are provided on at least three sides of the outer periphery of the holder 5 with the pivot screw 6 in the center, and screws 8a and 8 are inserted into these screw insertion holes 18, respectively.
b, 8c, and 8d, and their tips are screwed into female threads 17 provided on the fixing part 7 in correspondence with each screw. Note that the shaft portion of each screw 8a to 8c is formed to have a smaller diameter than the insertion hole 18.
９は固定部７の上端両側部に固定している左右
一対の角度調節部材で、この角度調節部材９に、
先端がホルダー５の上端両側面に当接する調節ね
じ１０ａ，１０ｂを螺通させてあり、これら調節
ねじ１０ａ，１０ｂを動かすことによつて、ホル
ダー５をＺ軸のまわりに回転させることができ
る。また、前記ねじ８ａ〜８ｄは、第４図に示す
様に、頭部のホルダー５との対向面側に球面１４
を有しており、かつこの頭部とホルダー５との間
に、一側面にこの球面１４とはまり合う凹球面を
有し他側面はホルダー５に当接する平面である押
圧片１５が介装されている。そのために、ホルダ
ー５が３軸まわりに任意に傾いた状態でも、ホル
ダー５を固定部７に無理なく押し付けて安定して
固定できる。 Reference numeral 9 denotes a pair of left and right angle adjusting members fixed to both sides of the upper end of the fixed part 7.
Adjustment screws 10a and 10b whose tips abut against both sides of the upper end of the holder 5 are threaded through, and by moving these adjustment screws 10a and 10b, the holder 5 can be rotated around the Z axis. Further, each of the screws 8a to 8d has a spherical surface 14 on the side of the head facing the holder 5, as shown in FIG.
A pressing piece 15 is interposed between the head and the holder 5 and has a concave spherical surface that fits into the spherical surface 14 on one side and a flat surface that contacts the holder 5 on the other side. ing. Therefore, even if the holder 5 is tilted arbitrarily around three axes, the holder 5 can be pressed against the fixing part 7 without any force and can be stably fixed.
ホルダー５の傾きを調整する場合は、ねじ８ｂ
と８ｄを動かすことによつてピボツト６，１６を
中心にＸ軸のまわりにホルダー５を回転させるこ
とができ、またねじ８ａと８ｃを動かすことによ
つてホルダー５をＹ軸のまわりに回転させること
ができ、上述の通り調節ねじ１０ａ，１０ｂを動
かすことによりホルダー５をＺ軸のまわりに回転
させることができる。 When adjusting the inclination of the holder 5, use the screw 8b.
By moving the screws 8a and 8d, the holder 5 can be rotated around the X axis around the pivots 6 and 16, and by moving the screws 8a and 8c, the holder 5 can be rotated around the Y axis. As described above, the holder 5 can be rotated around the Z axis by moving the adjusting screws 10a and 10b.
なお、図示の実施例では前記固定部７は、上下
移動台１２の可動ステージ１３に固定されてお
り、前記上下移動台１２のＹ軸方向の動きによつ
て記録レンズ２の焦点位置の調整が行なわれる。
またピボツトねじ６の進退によつて記録レンズ２
のＺ軸方向の位置調整が行なわれる。１１は装置
の基板である。 In the illustrated embodiment, the fixed part 7 is fixed to a movable stage 13 of a vertically movable table 12, and the focal position of the recording lens 2 can be adjusted by movement of the vertically movable table 12 in the Y-axis direction. It is done.
Also, by moving the pivot screw 6 back and forth, the recording lens 2
The position in the Z-axis direction is adjusted. 11 is a substrate of the device.
本考案のレンズ駆動素子取付装置によれば、以
上の説明から明らかな様に、レンズ駆動素子のホ
ルダーの中央部に、固定部の中央部に設けたピボ
ツト軸受に嵌合する球面ピボツトを設けると共
に、この球面ピボツトを中央にしてホルダーの外
周部の少なくとも三方にねじ挿通孔を設け、これ
らのねじ挿通孔に夫々ねじを挿通してその先端部
を各ねじに対応して前記固定部に設けている雌ね
じに螺合させているので、これらのねじを回動調
節することにより、球面ピボツトを中心としてホ
ルダーのＸ、Ｙ軸回りの角度を確実且つ簡単に調
整することができ、さらに、固定部の端部両側に
先端を前記ホルダーの端部両側面に当接させた調
節ねじを螺装しているので、この調節ねじの回動
によつてホルダーのＺ軸回りの角度を正確且つ容
易に調整することができるものであり、その上こ
のホルダーを任意の角度位置で固定すべくピボツ
トの囲りに配置したねじの頭部を球面とし、この
頭部とホルダーとの間に球面とはまり合う球面を
有するホルダー押圧片を介装しているので、ホル
ダーを位置ずれを生じさせることなく正確な位置
に安定的に歪みなく固定することができる。その
ため、レンズ駆動素子が共振したりすることな
く、記録レンズの光軸をガラス原盤表面に垂直に
設定できる。 According to the lens drive element mounting device of the present invention, as is clear from the above description, a spherical pivot is provided in the center of the holder of the lens drive element to fit into a pivot bearing provided in the center of the fixing part. Screw insertion holes are provided on at least three sides of the outer periphery of the holder with this spherical pivot in the center, screws are inserted into these screw insertion holes, and the tip portions are provided in the fixing portion corresponding to each screw. By adjusting the rotation of these screws, you can reliably and easily adjust the angle of the holder around the X and Y axes around the spherical pivot. Adjustment screws whose tips abut against both sides of the end of the holder are threaded on both sides of the holder, so that the angle of the holder around the Z axis can be adjusted accurately and easily by rotating the adjustment screw. It can be adjusted, and in addition, in order to fix the holder at any desired angle, the head of the screw placed around the pivot is a spherical surface, and the spherical surface fits between the head and the holder. Since the holder pressing piece having a spherical surface is interposed, the holder can be stably fixed at an accurate position without causing any displacement and without distortion. Therefore, the optical axis of the recording lens can be set perpendicular to the surface of the glass master without causing resonance in the lens drive element.
図面は本考案の一実施例を示し、第１図は正面
図、第２図は部分断側面図、第３図はホルダーの
斜視図、第４図はねじの作用状態を示す拡大断面
図である。
１はガラス原盤、２は記録レンズ、３はレンズ
駆動素子、５はホルダー、６はピボツトねじ（球
面ピボツト）、７は固定部、８ａ，８ｂ，８ｃ，
８ｄは頭部に球面１４を有するねじ、９は角度調
節部材、１０ａ，１０ｂは調節ねじ、１５は押圧
片、１６はピボツト軸受、１７はねじ８ａ〜８ｄ
が螺合する雌ねじ。
The drawings show one embodiment of the present invention, with Fig. 1 being a front view, Fig. 2 being a partially sectional side view, Fig. 3 being a perspective view of the holder, and Fig. 4 being an enlarged sectional view showing the operating state of the screw. be. 1 is a glass master disk, 2 is a recording lens, 3 is a lens drive element, 5 is a holder, 6 is a pivot screw (spherical pivot), 7 is a fixed part, 8a, 8b, 8c,
8d is a screw having a spherical surface 14 on the head, 9 is an angle adjustment member, 10a, 10b are adjustment screws, 15 is a pressing piece, 16 is a pivot bearing, 17 is a screw 8a to 8d
A female thread that is screwed together.
Claims (1)
るホルダーの垂直部分の中央部に球面ピボツトを
取付けると共にこの球面ピボツトを中央にしてホ
ルダーの少なくとも外周三方部にねじ挿通孔を設
け、各ねじ挿通孔にこの孔よりも軸部が小径のね
じを挿通してこれらのねじを固定部に設けた対応
する雌ねじに螺合させると共に前記球面ピボツト
を固定部に設けたピボツト軸受に嵌合させ、さら
に、前記固定部の端部両側に先端を前記ホルダー
の端部両側面に当接させた調節ねじを螺装すると
共に前記各孔に挿通している各ねじの頭部とホル
ダーとの間に一側面にねじ頭の内面に形成した球
面に嵌合する凹球面を有し他側面をホルダーに当
接させたホルダー押圧片を介装させてなるレンズ
駆動素子のホルダー。 A spherical pivot is installed in the center of the vertical part of the holder, which has a mounting part for the lens drive element in the lower horizontal part, and screw insertion holes are provided on at least three sides of the holder with this spherical pivot in the center, and screw insertion holes are provided in each screw insertion hole. Screws whose shaft portions have a smaller diameter than the holes are inserted, and these screws are screwed into corresponding female threads provided on the fixing portion, and the spherical pivot is fitted into a pivot bearing provided on the fixing portion, and further, Adjustment screws with tips abutting both sides of the end of the holder are screwed onto both sides of the end of the fixing part, and adjustment screws are screwed onto both sides of the end of the fixing part, and screws are screwed onto one side between the head of each screw inserted into each hole and the holder. A holder for a lens driving element, which is provided with a holder pressing piece having a concave spherical surface that fits into a spherical surface formed on the inner surface of a screw head, and the other side of which is in contact with the holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6921682U JPS58173033U (en) | 1982-05-11 | 1982-05-11 | Lens drive element mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6921682U JPS58173033U (en) | 1982-05-11 | 1982-05-11 | Lens drive element mounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58173033U JPS58173033U (en) | 1983-11-18 |
| JPH0229525Y2 true JPH0229525Y2 (en) | 1990-08-08 |
Family
ID=30078951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6921682U Granted JPS58173033U (en) | 1982-05-11 | 1982-05-11 | Lens drive element mounting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58173033U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60175323U (en) * | 1984-04-30 | 1985-11-20 | 日本電気ホームエレクトロニクス株式会社 | Optical pickup tilt adjustment device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733445A (en) * | 1980-08-06 | 1982-02-23 | Mitsubishi Electric Corp | Semiconductor laser beam source device of optical information recorder and reproducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55178844U (en) * | 1979-06-09 | 1980-12-22 |
-
1982
- 1982-05-11 JP JP6921682U patent/JPS58173033U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733445A (en) * | 1980-08-06 | 1982-02-23 | Mitsubishi Electric Corp | Semiconductor laser beam source device of optical information recorder and reproducer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58173033U (en) | 1983-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0341936B1 (en) | Tilt adjustment mechanism for object lens driving | |
| JP2724335B2 (en) | Guide rail mounting structure | |
| JP2000149279A (en) | Objective lens holding device | |
| JPH0581693A (en) | Optical head | |
| US20020181386A1 (en) | Disk reproducing device | |
| JPH0229525Y2 (en) | ||
| US4153256A (en) | Tangential tracking tonearm | |
| US6369963B1 (en) | Optical pickup apparatus | |
| JPH10208372A (en) | Tilt adjusting device of disk device | |
| JPS634267Y2 (en) | ||
| JPS61150162A (en) | Support mechanism of optical disc driver | |
| JP2768608B2 (en) | Optical axis adjustment mechanism of optical pickup | |
| KR100189914B1 (en) | Pickup tilt adjusting device for disc player | |
| JPH0650570B2 (en) | Light head | |
| JPH0739050Y2 (en) | Optical pickup device | |
| JP3186147B2 (en) | Magneto-optical disk recording / reproducing apparatus and magnetic field modulation head mechanism | |
| JP4143424B2 (en) | Optical disk device | |
| JP2001067699A (en) | Tilt regulating device for optical disk device | |
| JPH0424525Y2 (en) | ||
| JP3186148B2 (en) | Magneto-optical disk recording / reproducing apparatus and magnetic field modulation head mechanism | |
| JP2549055Y2 (en) | Support mechanism for optical pickup device | |
| JPH0454566Y2 (en) | ||
| JP3749596B2 (en) | Optical pickup device | |
| JPH0697509B2 (en) | Optical recording / reproducing method and apparatus thereof | |
| JP2000306320A (en) | Drive apparatus |