JPS6248021U - - Google Patents
Info
- Publication number
- JPS6248021U JPS6248021U JP14042585U JP14042585U JPS6248021U JP S6248021 U JPS6248021 U JP S6248021U JP 14042585 U JP14042585 U JP 14042585U JP 14042585 U JP14042585 U JP 14042585U JP S6248021 U JPS6248021 U JP S6248021U
- Authority
- JP
- Japan
- Prior art keywords
- focus coil
- yokes
- bobbin
- yoke
- coil
- 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 2
- 230000004907 flux Effects 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図ａ，ｂは、この考案の一実施例を示す断
面図と平面図、第２図は、この考案の一実施例を
示す、アクチエータプレートの平面図、第３図ａ
，ｂは、従来例を示す断面図と平面図である。
１…アクチエータプレート、６…内ヨーク、８
…マグネツト、９…マグネツトプレート、１０…
外ヨーク、１１…端部。なお、図中、同一符号は
同一、又は相当部分を示す。
Figures 1a and b are a sectional view and a plan view showing an embodiment of this invention, Figure 2 is a plan view of an actuator plate showing an embodiment of this invention, and Figure 3a is a
, b are a sectional view and a plan view showing a conventional example. 1...actuator plate, 6...inner yoke, 8
...Magnet, 9...Magnetic plate, 10...
Outer yoke, 11... end. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
かつ光学手段を有するボビンと、このボビンの外
周にリング状に巻回されたフオーカスコイルと、
このフオーカスコイルの内、外に位置しかつこの
フオーカスコイルを挾むように互に対向してこの
フオーカスコイルを横切る磁束を与える内ヨーク
及び外ヨークと、上記フオーカスコイル上面の、
上記両ヨークの端部に対向する位置に設けられた
トラツキングコイルとを備えた光ピツクアツプ装
置において、上記内ヨークと外ヨークの端部側間
隔を中央部分より狭くしたことを特徴とする光ピ
ツクアツプ装置。 a bobbin supported movably in the longitudinal direction and circumferential direction of a shaft and having an optical means; a focus coil wound in a ring shape around the outer circumference of the bobbin;
an inner yoke and an outer yoke that are located inside and outside of the focus coil and face each other so as to sandwich the focus coil, and provide a magnetic flux that crosses the focus coil;
An optical pickup device comprising a tracking coil provided at a position facing the ends of both the yokes, characterized in that the distance between the inner yokes and the outer yokes at the end portions is narrower than the center portion. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14042585U JPS6248021U (en) | 1985-09-13 | 1985-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14042585U JPS6248021U (en) | 1985-09-13 | 1985-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6248021U true JPS6248021U (en) | 1987-03-25 |
Family
ID=31047265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14042585U Pending JPS6248021U (en) | 1985-09-13 | 1985-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6248021U (en) |
-
1985
- 1985-09-13 JP JP14042585U patent/JPS6248021U/ja active Pending