JPS6355212U - - Google Patents
Info
- Publication number
- JPS6355212U JPS6355212U JP14852186U JP14852186U JPS6355212U JP S6355212 U JPS6355212 U JP S6355212U JP 14852186 U JP14852186 U JP 14852186U JP 14852186 U JP14852186 U JP 14852186U JP S6355212 U JPS6355212 U JP S6355212U
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- magnet
- coil
- lens holder
- facing
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案による光学式ピツクアツプの補
正駆動装置の実施例を示す平面図、第２図はその
側面図、第３図はコイルとマグネツトとヨークを
拡大して示す平面図、第４図は第３図における磁
束密度の分布を示す線図、第５図は第３図の左側
面図、第６図は従来の問題点と本考案の効果を比
較するためのものであり、レンズホルダの変位と
駆動力との関係を示す線図、第７図は従来のコイ
ルとマグネツトとヨークを示す平面図、第８図は
第７図における磁束密度の分布を示す線図、第９
図は従来の光学式ピツクアツプの補正駆動装置を
示す平面図、第１０図はその側面図、第１１図は
従来のコイルを示す正面図である。
１……対物レンズ、２……レンズホルダ、３…
…板ばね、４……回動フレーム、５……支持軸、
７……フオーカシングコイル、１１……トラツキ
ングコイル、１１ａ……トラツキングコイルの駆
動部、２１……マグネツト、２２……ヨーク、２
２ａ……支持部、２２ｂ……対向部、２２ｃ……
連結部。
Fig. 1 is a plan view showing an embodiment of the optical pickup correction drive device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view showing an enlarged view of the coil, magnet, and yoke, and Fig. 4 is a diagram showing the distribution of magnetic flux density in Fig. 3, Fig. 5 is a left side view of Fig. 3, and Fig. 6 is a diagram for comparing the conventional problems and the effects of the present invention. Figure 7 is a plan view showing the conventional coil, magnet, and yoke; Figure 8 is a diagram showing the distribution of magnetic flux density in Figure 7; Figure 9 is a diagram showing the relationship between displacement and driving force;
1 is a plan view showing a conventional correction drive device for an optical pickup, FIG. 10 is a side view thereof, and FIG. 11 is a front view showing a conventional coil. 1... Objective lens, 2... Lens holder, 3...
...Plate spring, 4...Rotating frame, 5...Support shaft,
7... Focusing coil, 11... Tracking coil, 11a... Tracking coil drive section, 21... Magnet, 22... Yoke, 2
2a... Supporting part, 22b... Opposing part, 22c...
Connecting part.
Claims (1)
るレンズホルダが動作自在に支持されており且つ
、このレンズホルダに固定されたコイルとこのコ
イルに対向するマグネツトとによりレンズホルダ
の光デイスクに対する対向位置が補正される光学
式ピツクアツプの補正駆動装置において、前記マ
グネツトはヨークに支持されており、このヨーク
は、マグネツトを支持している支持部と、コイル
を挾んでマグネツトに対向する対向部と、支持部
と対向部とをつなぐ連結部とから構成されており
且つ、ヨークの支持部と対向部の間隔が、連結部
から離れる方向へ徐々に広げられていることを特
徴とする光学式ピツクアツプの補正駆動装置。 A lens holder holding an objective lens facing the optical disk is movably supported, and a coil fixed to the lens holder and a magnet facing the coil allow the position of the lens holder to face the optical disk to be adjusted. In a correction drive device for an optical pickup, the magnet is supported by a yoke, and the yoke has a support part supporting the magnet, an opposing part facing the magnet with the coil in between, and a support part. and a connecting portion connecting the yoke and the opposing portion, and the distance between the supporting portion of the yoke and the opposing portion gradually widens in the direction away from the connecting portion. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14852186U JPS6355212U (en) | 1986-09-26 | 1986-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14852186U JPS6355212U (en) | 1986-09-26 | 1986-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6355212U true JPS6355212U (en) | 1988-04-13 |
Family
ID=31062870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14852186U Pending JPS6355212U (en) | 1986-09-26 | 1986-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6355212U (en) |
-
1986
- 1986-09-26 JP JP14852186U patent/JPS6355212U/ja active Pending
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