JPS61167027U - - Google Patents
Info
- Publication number
- JPS61167027U JPS61167027U JP5089685U JP5089685U JPS61167027U JP S61167027 U JPS61167027 U JP S61167027U JP 5089685 U JP5089685 U JP 5089685U JP 5089685 U JP5089685 U JP 5089685U JP S61167027 U JPS61167027 U JP S61167027U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- impregnated
- optical head
- resin
- yoke
- 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
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 2
- 230000001012 protector Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Description
第1図は本考案の一実施例を示す断面図、第2
図は同実施例の斜視図、第3図aは第2図におけ
る要部の横断面図、第3図bは第3図aのA―A
線における断面端面図、第4図は従来装置及び本
考案の一実施例の周波数特性を示す図、第5図a
は本考案に係る他の実施例の要部の横断面図、第
5図bは第5図aのB―B線における断面端面図
である。
2a,2b……内ヨーク、3a,3b……外ヨ
ーク、4……間隙、5a,5b……マグネツト、
9……集束レンズ、10……保持体、14……フ
オーカス制御用コイル、15……トラツキング制
御用コイル、16……含浸用樹脂、17……被覆
用樹脂、20……弾性薄板。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a perspective view of the same embodiment, Figure 3a is a cross-sectional view of the main part in Figure 2, and Figure 3b is A-A in Figure 3a.
4 is a diagram showing the frequency characteristics of a conventional device and an embodiment of the present invention; FIG. 5a is a cross-sectional end view taken along the line;
5 is a cross-sectional view of a main part of another embodiment of the present invention, and FIG. 5b is a cross-sectional end view taken along line BB in FIG. 5a. 2a, 2b...Inner yoke, 3a, 3b...Outer yoke, 4...Gap, 5a, 5b...Magnet,
9...Focusing lens, 10...Holding body, 14...Focus control coil, 15...Tracking control coil, 16...Resin for impregnation, 17...Resin for coating, 20...Elastic thin plate.
Claims (1)
して支持体に可動に支持し、ヨークとマグネツト
により形成される間隙に、この保持体に設けたコ
イルを配してなる光学ヘツドにおいて、前記コイ
ルに粘弾性を有する含浸用樹脂を含浸すると共に
、この含浸したコイルを硬質の被覆用樹脂にて覆
つたことを特徴とする光学ヘツド。 In an optical head, a protector for protecting a focusing lens is movably supported on a support via a thin elastic plate, and a coil provided on the holder is disposed in a gap formed by a yoke and a magnet. An optical head characterized in that a coil is impregnated with an impregnating resin having viscoelasticity, and the impregnated coil is covered with a hard coating resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5089685U JPS61167027U (en) | 1985-04-05 | 1985-04-05 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5089685U JPS61167027U (en) | 1985-04-05 | 1985-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61167027U true JPS61167027U (en) | 1986-10-16 |
Family
ID=30569458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5089685U Pending JPS61167027U (en) | 1985-04-05 | 1985-04-05 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61167027U (en) |
-
1985
- 1985-04-05 JP JP5089685U patent/JPS61167027U/ja active Pending