JPS58118541U - optical head - Google Patents
optical headInfo
- Publication number
- JPS58118541U JPS58118541U JP1337282U JP1337282U JPS58118541U JP S58118541 U JPS58118541 U JP S58118541U JP 1337282 U JP1337282 U JP 1337282U JP 1337282 U JP1337282 U JP 1337282U JP S58118541 U JPS58118541 U JP S58118541U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- lens holder
- optical head
- fixed
- attached
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来装置の一例を示す斜視図、第2図及び第3
図はこの考案の一実施例を示す上面図及び縦断面図、第
4図及び第5図はこの考案の他の実施例を示す上面図及
び縦断面図、第6図は第4図及び第5図におけるコイル
の取り付は位置を示す構成図である。
10は対物レンズ、11.21はボビン、12゜22は
フォーカス用コイル、13.23はトラッキング用コイ
ル、14.24はヨーク、15゜25はマグネット、1
6.26はスプリング、17はピボット、18はピボッ
ト受、27は回転軸、28は軸受である。Figure 1 is a perspective view showing an example of a conventional device, Figures 2 and 3 are
The figure shows a top view and a longitudinal sectional view of one embodiment of this invention, FIGS. 4 and 5 show a top view and a longitudinal sectional view of another embodiment of this invention, and FIG. FIG. 5 is a configuration diagram showing the mounting position of the coil. 10 is an objective lens, 11.21 is a bobbin, 12°22 is a focusing coil, 13.23 is a tracking coil, 14.24 is a yoke, 15°25 is a magnet, 1
6.26 is a spring, 17 is a pivot, 18 is a pivot receiver, 27 is a rotating shaft, and 28 is a bearing.
Claims (1)
体にボイスコイル状に取り付けられた第1のコイルと、
上記レンズ保持体に取り付けられ略リング状に形成され
た複数のコイルから成る第2のコイルとを備え、上記第
1のコイルと第2のコイルの有効線輪を共通の磁気回路
に配すると共に、上記レンズ保持体を一対のスプリング
の一端に固着すると共に他端を固定部に対して回動自在
に取り付けたことを特徴とする光学ヘッド。a lens holder to which an objective lens is fixed; a first coil attached to the lens holder in the form of a voice coil;
a second coil consisting of a plurality of coils attached to the lens holder and formed in a substantially ring shape, the effective coils of the first coil and the second coil being arranged in a common magnetic circuit; . An optical head, wherein the lens holder is fixed to one end of a pair of springs, and the other end is rotatably attached to a fixed part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1337282U JPS58118541U (en) | 1982-02-02 | 1982-02-02 | optical head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1337282U JPS58118541U (en) | 1982-02-02 | 1982-02-02 | optical head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58118541U true JPS58118541U (en) | 1983-08-12 |
Family
ID=30025890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1337282U Pending JPS58118541U (en) | 1982-02-02 | 1982-02-02 | optical head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58118541U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6198227U (en) * | 1984-11-30 | 1986-06-24 | ||
JPS6242120U (en) * | 1985-08-30 | 1987-03-13 |
-
1982
- 1982-02-02 JP JP1337282U patent/JPS58118541U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6198227U (en) * | 1984-11-30 | 1986-06-24 | ||
JPS6242120U (en) * | 1985-08-30 | 1987-03-13 |
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