JPS6381319U - - Google Patents
Info
- Publication number
- JPS6381319U JPS6381319U JP17650486U JP17650486U JPS6381319U JP S6381319 U JPS6381319 U JP S6381319U JP 17650486 U JP17650486 U JP 17650486U JP 17650486 U JP17650486 U JP 17650486U JP S6381319 U JPS6381319 U JP S6381319U
- Authority
- JP
- Japan
- Prior art keywords
- circuit assembly
- magnetic circuit
- housing
- objective lens
- drive 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 description 5
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図は本考案による光学式ピツクアツプ装置
の拡散分解図、第２図ａ，ｂ及びｃは本考案によ
る光学式ピツクアツプ装置の平面図、正面図及び
側面図、第３図は可撓性部材を示した図、第４図
は対物レンズの光軸方向の調整動作を示した図。
主要部分の符号の説明、１……対物レンズ、２
……レンズホルダ、５……フオーカスコイル、６
……トラツキングコイル、７……中心コア、８…
…ネジ部材、１０……筐体、１１……平板部材、
１３……外側ヨーク、１４……マグネツト、１６
……内側ヨーク、１８……可撓性部材、２０……
制振部材、２１……付勢手段、２２，２３……ビ
ス、２４……雄ネジ部材、２５……雌ネジ部材、
２６……弾性部材。
Fig. 1 is a diffusion exploded view of an optical pick-up device according to the present invention, Fig. 2 a, b, and c are a plan view, front view, and side view of an optical pick-up device according to the present invention, and Fig. 3 is a flexible member. FIG. 4 is a diagram showing the adjustment operation of the objective lens in the optical axis direction. Explanation of symbols of main parts, 1...Objective lens, 2
... Lens holder, 5 ... Focus coil, 6
...Trucking coil, 7...Center core, 8...
... screw member, 10 ... housing, 11 ... flat plate member,
13...Outer yoke, 14...Magnet, 16
... Inner yoke, 18 ... Flexible member, 20 ...
Vibration damping member, 21... urging means, 22, 23... screw, 24... male screw member, 25... female screw member,
26...Elastic member.
Claims (1)
情報記録媒体の情報記録面に照射しこの反射光を
受けて受光素子へ中継する光学系及び前記対物レ
ンズを位置決めするレンズ駆動系を収納する筐体
を含む光学式ピツクアツプ装置であつて、前記レ
ンズ駆動系は前記筐体内に固定されて磁気ギヤツ
プを形成する磁気回路アセンブリと、前記磁気ギ
ヤツプに配設された駆動コイルと、前記駆動コイ
ルに結合しかつ前記磁気回路アセンブリに対して
可動に支持されて前記対物レンズを保持するレン
ズ保持部材とからなり、前記磁気回路アセンブリ
は前記筐体に対して枢動自在に担持されており、
前記磁気回路アセンブリはその１ケ所を前記筐体
に向けて付勢する付勢手段と、前記磁気回路アセ
ンブリの他の２ケ所を前記筐体に対して位置決め
する位置決め手段とによつて前記筐体に固定され
ていることを特徴とするピツクアツプ装置。 A casing that houses an optical system that irradiates a light beam obtained from a light source onto an information recording surface of an information recording medium through an objective lens, receives the reflected light, and relays it to a light receiving element, and a lens drive system that positions the objective lens. An optical pickup device comprising: a magnetic circuit assembly fixed within the housing to form a magnetic gap; a drive coil disposed in the magnetic gap; and a drive coil coupled to the drive coil. a lens holding member movably supported relative to the magnetic circuit assembly and holding the objective lens, the magnetic circuit assembly being pivotally supported relative to the housing;
The magnetic circuit assembly is attached to the housing by means of urging means for urging one portion of the magnetic circuit assembly toward the housing, and positioning means for positioning the other two portions of the magnetic circuit assembly relative to the housing. A pick-up device characterized by being fixed to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17650486U JPS6381319U (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17650486U JPS6381319U (en) | 1986-11-17 | 1986-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6381319U true JPS6381319U (en) | 1988-05-28 |
Family
ID=31116810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17650486U Pending JPS6381319U (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6381319U (en) |
-
1986
- 1986-11-17 JP JP17650486U patent/JPS6381319U/ja active Pending
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