JPH0420618U - - Google Patents
Info
- Publication number
- JPH0420618U JPH0420618U JP6198690U JP6198690U JPH0420618U JP H0420618 U JPH0420618 U JP H0420618U JP 6198690 U JP6198690 U JP 6198690U JP 6198690 U JP6198690 U JP 6198690U JP H0420618 U JPH0420618 U JP H0420618U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- yoke
- optical disk
- pickup device
- objective lens
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は第２図に示すヨークの外観斜視図、第
２図は一実施例としての光ピツクアツプ装置の要
部を示す部分拡大斜視図、第３図ａ，ｂは第２図
に示す光ピツクアツプ装置の作用を示す説明図、
第４図ａは正面図、同図ｂは同図ａに示すＣＣ断
面図、第５図ａ，ｂはヨーク及び突出部のさらに
他の実施例を示すもので、同図ａは正面図、同図
ｂは右側面図、第６図、第７図はそれぞれヨーク
のさらに他の実施例を示す正面図、第８図は従来
の光ピツクアツプ装置の上面図である。
１０……対物レンズ、１２……マグネツト、１
３ａ……ばね部材、１３……支持機構部、１４，
１８乃至２０……ヨーク、１５，１６……巻線、
１４ｂ，１７ａ，１８ａ，１９ａ，２０ａ……突
出部、Ｄ……光デイスク。
1 is an external perspective view of the yoke shown in FIG. 2, FIG. 2 is a partially enlarged perspective view showing the main parts of an optical pickup device as an embodiment, and FIGS. An explanatory diagram showing the operation of the pick-up device,
FIG. 4a is a front view, FIG. 4b is a CC sectional view shown in FIG. FIG. 6B is a right side view, FIGS. 6 and 7 are front views showing further embodiments of the yoke, and FIG. 8 is a top view of a conventional optical pickup device. 10...Objective lens, 12...Magnet, 1
3a... Spring member, 13... Support mechanism section, 14,
18 to 20... Yoke, 15, 16... Winding wire,
14b, 17a, 18a, 19a, 20a... protrusion, D... optical disk.
Claims (1)
を保持するレンズホルダに取り付けられたマグネ
ツトと、このレンズホルダを変位自在に支持する
ばね部材を備えた支持機構部と、前記マグネツト
と対向して配置され、この対向面で巻線を巻回さ
れた磁性体からなるヨークとを備え、巻線への通
電により発生する磁気力により対物レンズを変位
させる光デイスクプレーヤに用いられる光ピツク
アツプ装置において、前記ヨークのマグネツトと
の対向面又は前記マグネツトのヨークとの対向面
の何れか一方の中央部に、突出部を形成したこと
を特徴とする光デイスクプレーヤに用いられる光
ピツクアツプ装置。 a magnet attached to a lens holder that holds an objective lens that transmits and receives light to and from the optical disk, a support mechanism section that includes a spring member that displaceably supports the lens holder, and is disposed opposite to the magnet; In an optical pickup device used in an optical disk player, the yoke is provided with a yoke made of a magnetic material with a winding wound around the opposite surface, and the objective lens is displaced by a magnetic force generated by energizing the winding. 1. An optical pickup device for use in an optical disk player, characterized in that a protrusion is formed in the center of either a surface facing a magnet or a surface of the magnet facing a yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990061986U JP2512846Y2 (en) | 1990-06-11 | 1990-06-11 | Optical pickup device used for optical disc player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990061986U JP2512846Y2 (en) | 1990-06-11 | 1990-06-11 | Optical pickup device used for optical disc player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0420618U true JPH0420618U (en) | 1992-02-20 |
| JP2512846Y2 JP2512846Y2 (en) | 1996-10-02 |
Family
ID=31590729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990061986U Expired - Lifetime JP2512846Y2 (en) | 1990-06-11 | 1990-06-11 | Optical pickup device used for optical disc player |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2512846Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772363B1 (en) * | 2001-09-27 | 2007-11-01 | 삼성전자주식회사 | Magnet for optical pickup actuator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61220140A (en) * | 1985-03-26 | 1986-09-30 | Toshiba Corp | Optical head device |
| JPH03273533A (en) * | 1990-03-23 | 1991-12-04 | Matsushita Electric Ind Co Ltd | Objective lens driving device |
-
1990
- 1990-06-11 JP JP1990061986U patent/JP2512846Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61220140A (en) * | 1985-03-26 | 1986-09-30 | Toshiba Corp | Optical head device |
| JPH03273533A (en) * | 1990-03-23 | 1991-12-04 | Matsushita Electric Ind Co Ltd | Objective lens driving device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772363B1 (en) * | 2001-09-27 | 2007-11-01 | 삼성전자주식회사 | Magnet for optical pickup actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2512846Y2 (en) | 1996-10-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |