JPS6387623U - - Google Patents
Info
- Publication number
- JPS6387623U JPS6387623U JP18310586U JP18310586U JPS6387623U JP S6387623 U JPS6387623 U JP S6387623U JP 18310586 U JP18310586 U JP 18310586U JP 18310586 U JP18310586 U JP 18310586U JP S6387623 U JPS6387623 U JP S6387623U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- holder
- turntable
- coil
- 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 6
- 230000004907 flux Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案に係る光学式デイスクプレーヤ
の要部であるピツクアツプ装置とターンテーブル
の平面図、第２図は該ピツクアツプ装置の拡散分
解図、第３図は各光学素子とデイスクの一部を示
す斜視図、第４図ないし第７図はレンズ駆動系を
説明するための一部詳細図、第８図ａ，ｂはグレ
イテイングを担持したホルダの側面図及び正面図
、第９図及び第１０図はミラーの取付構造を説明
するための一部詳細図、第１１図ないし第１６図
は受光素子の位置調整機構を示す一部詳細図（但
し、第１２図及び第１３図は第１１図に関する各
々―矢視図及び―断面図、第１
４図は第１１図に関する―断面図、第１
５図は第１４図に関する―矢視図）、第
１７図ａないし第１８図ｂはフレキシブルプリン
ト基板を示す図、第１９図は可撓線の正面図、第
２０図は防振部材としての粘弾性部材のフオーカ
ス方向における圧縮量―荷重特性を示す図、第２
１図及び第２２図は受光素子の位置調整機構の変
型例を示す図、第２３図ないし第２５図は従来例
を説明するための図である。
主要部分の符号の説明、１……筐体、１ａ，１
ｂ……規制突部、１ｃ，１４ｅ……マーク、１ｅ
……挿入孔、１ｇ，１ｈ……スリツト、１ｉ……
治具挿入孔、１ｊ……凹部、１ｋ……摺接部、１
ｌ……リブ、１ｍ……位置決め面、１ｎ……突起
、１ｏ……斜面、１ｐ……切欠部、２……蓋体、
２ａ……開口部、３……レーザダイオード、４…
…グレイテイング、５……ハーフミラー、６……
ミラー、６ａ……反射面、６ｂ……非反射面、８
……ターンテーブル、９……ガイドシヤフト、１
０……デイスク、１２……受光素子、１３……対
物レンズ、１４……レンズホルダ、１４ａ……貫
通孔、１４ｂ……ボビン部、１４ｃ……開口部、
１５，２８，３１……ねじ、１７……ベース部材
、１７ａ……ねじ孔、１７ｂ……ヨーク部、１７
ｃ……ポールヨーク部、１８……支持シヤフト、
１８ａ……クリーナ、１９……フオーカシングコ
イル、２０……トラツキングコイル、２２……カ
ウンタウエイト、２３……マグネツト、２４……
磁束中心、２６……粘弾性部材、２６ａ……環状
部、２６ｂ，２６ｃ……取り付け部、２９……固
定プレート、３０……サブプレート、３３……樹
脂製筒状ホルダ、３３ａ……長手突起、３５，３
７，４４，４６……板ばね、３５ａ，３７ａ……
押圧部、３５ｂ……遮蔽部、３７ｂ……受面、３
７ｃ……受部、４０……ベース部材、４０ａ……
凹部、４０ｂ……斜面、４０ｃ……下端部、４０
ｄ……貫通孔、４０ｆ……開口部、４１……支持
部材、４１ａ……治具挿入孔、４１ｃ……突起、
４８，５６……位置調整治具、５０，５２……フ
レキシブルプリント基板、５０ａ……導線、５０
ｂ……凹部、５０ｃ……突出部、５０ｄ……スリ
ツト、５３……可撓線、５３ａ，５３ｂ……素線
、５４……小プリント基板。
Fig. 1 is a plan view of a pickup device and a turntable, which are the main parts of an optical disc player according to the present invention, Fig. 2 is a diffusion exploded view of the pick-up device, and Fig. 3 is a part of each optical element and a disc. FIGS. 4 to 7 are partially detailed views for explaining the lens drive system, FIGS. 8a and 8b are side and front views of the holder carrying the grating, and FIGS. Fig. 10 is a partially detailed view for explaining the mirror mounting structure, and Figs. 11 to 16 are partially detailed views showing the position adjustment mechanism of the light receiving element (however, Figs. 12 and 13 are 11 - Arrow view and - sectional view, 1st
Figure 4 is related to Figure 11 - sectional view, 1st
5 is a view in the direction of arrows related to FIG. 14), FIGS. 17a to 18b are views showing a flexible printed circuit board, FIG. 19 is a front view of a flexible wire, and FIG. A diagram showing the compression amount-load characteristics of a viscoelastic member in the focus direction, 2nd
1 and 22 are diagrams showing modified examples of the position adjustment mechanism for the light receiving element, and FIGS. 23 to 25 are diagrams for explaining the conventional example. Explanation of symbols of main parts, 1...Case, 1a, 1
b...Regulation protrusion, 1c, 14e...Mark, 1e
...Insertion hole, 1g, 1h...Slit, 1i...
Jig insertion hole, 1j... recess, 1k... sliding contact part, 1
l...Rib, 1m...Positioning surface, 1n...Protrusion, 1o...Slope, 1p...Notch, 2...Lid,
2a...Aperture, 3...Laser diode, 4...
... Grating, 5... Half mirror, 6...
Mirror, 6a... Reflective surface, 6b... Non-reflective surface, 8
... Turntable, 9 ... Guide shaft, 1
0... Disk, 12... Light receiving element, 13... Objective lens, 14... Lens holder, 14a... Through hole, 14b... Bobbin part, 14c... Opening part,
15, 28, 31... Screw, 17... Base member, 17a... Screw hole, 17b... Yoke part, 17
c...Pole yoke part, 18...Support shaft,
18a...Cleaner, 19...Focusing coil, 20...Tracking coil, 22...Counterweight, 23...Magnet, 24...
Center of magnetic flux, 26... Viscoelastic member, 26a... Annular part, 26b, 26c... Attachment part, 29... Fixed plate, 30... Sub plate, 33... Resin cylindrical holder, 33a... Longitudinal protrusion ,35,3
7, 44, 46...plate spring, 35a, 37a...
Pressing part, 35b... Shielding part, 37b... Receiving surface, 3
7c... Receiving part, 40... Base member, 40a...
Recessed portion, 40b...Slope, 40c...Lower end, 40
d...Through hole, 40f...Opening, 41...Support member, 41a...Jig insertion hole, 41c...Protrusion,
48, 56... Position adjustment jig, 50, 52... Flexible printed circuit board, 50a... Conductive wire, 50
b...Recessed portion, 50c...Protrusion, 50d...Slit, 53...Flexible wire, 53a, 53b...Element wire, 54...Small printed circuit board.
Claims (1)
を対物レンズを経て情報記録媒体の記録面に照射
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
を収容して前記ターンテーブルのデイスク担持面
と平行な面に沿つて移動する筐体とを含み、前記
レンズ駆動系は前記対物レンズを担持したホルダ
を含み前記対物レンズを前記対物レンズの光軸方
向及びこれに略直角な方向において移動自在に支
持した支持機構と、コイル中心軸が前記光軸方向
と略平行であるように前記ホルダに設けられた第
１コイルと、コイル中心軸が前記光軸方向に対し
て略直角となるように前記ホルダに取り付けられ
た第２コイルと、前記第１及び第２コイルの各々
に鎖交する２群の磁束を発生する一対の磁気回路
とを有し、前記磁気回路の磁束中心が前記デイス
ク担持面と平行な面内において前記筐体の移動方
向に対して傾斜せしめられていることを特徴とす
る光学式デイスクプレーヤ。 It houses a turntable, an optical system that irradiates the recording surface of the information recording medium with a light beam obtained from a light source 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. and a casing that moves along a plane parallel to the disk supporting surface of the turntable, and the lens drive system includes a holder that supports the objective lens, and moves the objective lens in the optical axis direction of the objective lens. a support mechanism supported movably in a direction substantially perpendicular to the direction; a first coil provided in the holder so that the coil center axis is substantially parallel to the optical axis direction; a second coil attached to the holder so as to be substantially perpendicular to the holder; and a pair of magnetic circuits that generate two groups of magnetic flux interlinked with each of the first and second coils, An optical disk player characterized in that the magnetic flux center of the circuit is inclined with respect to the moving direction of the housing in a plane parallel to the disk carrying surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18310586U JPH0521703Y2 (en) | 1986-11-28 | 1986-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18310586U JPH0521703Y2 (en) | 1986-11-28 | 1986-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6387623U true JPS6387623U (en) | 1988-06-08 |
| JPH0521703Y2 JPH0521703Y2 (en) | 1993-06-03 |
Family
ID=31129530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18310586U Expired - Lifetime JPH0521703Y2 (en) | 1986-11-28 | 1986-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521703Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6664618B2 (en) | 2001-05-16 | 2003-12-16 | Oki Electric Industry Co., Ltd. | Tape carrier package having stacked semiconductor elements, and short and long leads |
-
1986
- 1986-11-28 JP JP18310586U patent/JPH0521703Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0521703Y2 (en) | 1993-06-03 |
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