JPS6372714U - - Google Patents
Info
- Publication number
- JPS6372714U JPS6372714U JP16406486U JP16406486U JPS6372714U JP S6372714 U JPS6372714 U JP S6372714U JP 16406486 U JP16406486 U JP 16406486U JP 16406486 U JP16406486 U JP 16406486U JP S6372714 U JPS6372714 U JP S6372714U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- coil
- tracking
- lens actuator
- optical head
- 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
- 238000004804 winding Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示す対物レンズア
クチユエータの平面図、第２図は同一部を断面で
示した正面図、第３図は同左側面図、第４図は他
の実施例を示す対物レンズアクチユエータの平面
図、第５図は第４図における―線断面図、第
６図は従来の対物レンズアクチユエータを示す平
面図、第７図は同一部を断面で示した正面図、第
８図は同左側面図である。
１……対物レンズ、２……対物レンズホルダ、
５，２０……フオーカスコイル、１０，２１……
トラツキングコイル、１０ａ，２１ａ……内側巻
線部、１０ｂ，２１ｂ……外方巻線部、１２，２
５……マグネツト、１１，２２……ヨーク。
Fig. 1 is a plan view of an objective lens actuator showing one embodiment of the present invention, Fig. 2 is a front view showing the same part in section, Fig. 3 is a left side view of the same, and Fig. 4 is another embodiment. FIG. 5 is a plan view of an example objective lens actuator, FIG. 5 is a sectional view taken along the line - in FIG. 4, FIG. 6 is a plan view showing a conventional objective lens actuator, and FIG. 7 is a sectional view of the same part. The front view shown and FIG. 8 are the same left side views. 1...Objective lens, 2...Objective lens holder,
5, 20... Focus coil, 10, 21...
Tracking coil, 10a, 21a...Inner winding part, 10b, 21b...Outer winding part, 12, 2
5... Magnet, 11, 22... York.
Claims (1)
筒状のフオーカスコイルを設けるとともに、この
フオーカスコイルの外周にトラツキングコイルを
設けた光ヘツドの対物レンズアクチユエータにお
いて、前記筒状のフオーカスコイルの内部にマグ
ネツトを設け、トラツキング制御方向から見て環
状をなすように巻線されたトラツキングコイルを
、前記フオーカスコイルの外周面に取り付け、前
記トラツキングコイルの巻線中心部にヨークを挿
通させたことを特徴とする光ヘツドの対物レンズ
アクチユエータ。 In an objective lens actuator for an optical head, a cylindrical focus coil is provided integrally with an objective lens holder equipped with an objective lens, and a tracking coil is provided on the outer periphery of the focus coil. A tracking coil having a magnet provided inside the coil and wound in a ring shape when viewed from the tracking control direction is attached to the outer peripheral surface of the focus coil, and a yoke is provided at the center of the winding of the tracking coil. An objective lens actuator for an optical head, characterized in that it is inserted through the objective lens actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16406486U JPS6372714U (en) | 1986-10-25 | 1986-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16406486U JPS6372714U (en) | 1986-10-25 | 1986-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6372714U true JPS6372714U (en) | 1988-05-16 |
Family
ID=31092837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16406486U Pending JPS6372714U (en) | 1986-10-25 | 1986-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6372714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02226522A (en) * | 1989-02-28 | 1990-09-10 | Olympus Optical Co Ltd | Optical system driver |
-
1986
- 1986-10-25 JP JP16406486U patent/JPS6372714U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02226522A (en) * | 1989-02-28 | 1990-09-10 | Olympus Optical Co Ltd | Optical system driver |