JPH0226124U - - Google Patents
Info
- Publication number
- JPH0226124U JPH0226124U JP10101088U JP10101088U JPH0226124U JP H0226124 U JPH0226124 U JP H0226124U JP 10101088 U JP10101088 U JP 10101088U JP 10101088 U JP10101088 U JP 10101088U JP H0226124 U JPH0226124 U JP H0226124U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- movable part
- gravity
- center
- balancer
- 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
- 230000005484 gravity Effects 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Description
第１図は本考案の一実施例を示す側面図、第２
図は第１図における左側面図、第３図は第１図に
おける上面図、第４図は第１図における作動の原
理を説明する図、第５図は従来例を示す側面図、
第６図は第５図における左側面図、第７図は第５
図における上面図である。
これらの図において、１，２１……レンズホル
ダ、２，２２……対物レンズ、３，２７……フオ
ーカシングコイル、４，２３……基板、５，２４
……軸、１３，２８……トラツキングコイル、２
６……バランサ。
Figure 1 is a side view showing one embodiment of the present invention;
The figure is a left side view in FIG. 1, FIG. 3 is a top view in FIG. 1, FIG. 4 is a diagram explaining the principle of operation in FIG. 1, and FIG. 5 is a side view showing a conventional example.
Figure 6 is the left side view of Figure 5, Figure 7 is the left side view of Figure 5.
It is a top view in a figure. In these figures, 1, 21... Lens holder, 2, 22... Objective lens, 3, 27... Focusing coil, 4, 23... Substrate, 5, 24
...Axis, 13, 28...Tracking coil, 2
6... Balancer.
Claims (1)
嵌合し、対物レンズを有した可動部と、該可動部
を移動可能に支持する支持部とからなる光ピツク
アツプに用いられる対物レンズアクチユエータに
おいて、 前記可動部の反対物レンズ側に前記対物レンズ
に相当するバランサを設け、且つ、前記可動部の
対物レンズ側の重心と、バランサ側の重心とが前
記軸に対して線対象になるようにしたことを特徴
とする対物レンズアクチユエータ。[Claims for Utility Model Registration] A fixed part with a protruding shaft, a movable part that is slidably fitted onto the shaft and has an objective lens, and a support part that movably supports the movable part. In an objective lens actuator used for optical pickup, a balancer corresponding to the objective lens is provided on the opposite object lens side of the movable part, and a center of gravity of the movable part on the objective lens side and a center of gravity on the balancer side are provided. An objective lens actuator characterized in that and are line-symmetric with respect to the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101088U JPH0226124U (en) | 1988-07-28 | 1988-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101088U JPH0226124U (en) | 1988-07-28 | 1988-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0226124U true JPH0226124U (en) | 1990-02-21 |
Family
ID=31329613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10101088U Pending JPH0226124U (en) | 1988-07-28 | 1988-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226124U (en) |
-
1988
- 1988-07-28 JP JP10101088U patent/JPH0226124U/ja active Pending