JPH0211520U - - Google Patents
Info
- Publication number
- JPH0211520U JPH0211520U JP8639888U JP8639888U JPH0211520U JP H0211520 U JPH0211520 U JP H0211520U JP 8639888 U JP8639888 U JP 8639888U JP 8639888 U JP8639888 U JP 8639888U JP H0211520 U JPH0211520 U JP H0211520U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical axis
- focusing coil
- base
- base body
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図ａは本考案に係る対物レンズ駆動装置の
実施例を示す平面図、第１図ｂは同装置の正断面
図、第２図ａは従来の対物レンズ駆動装置の平面
図、第２図ｂは同装置の正断面図である。
１０……基体、１２……支持体、１３……対物
レンズ、１４，１４′……フオーカシングコイル
、１４ａ，１４ａ′……上辺、１４ｂ，１４ｂ′
……下辺、１６，１６′……マグネツト、１９，
１９′……切欠。
FIG. 1a is a plan view showing an embodiment of the objective lens driving device according to the present invention, FIG. 1b is a front sectional view of the same device, FIG. 2a is a plan view of a conventional objective lens driving device, and FIG. Figure b is a front sectional view of the device. 10... Base body, 12... Support body, 13... Objective lens, 14, 14'... Focusing coil, 14a, 14a'... Upper side, 14b, 14b'
...Lower side, 16, 16'...Magnet, 19,
19'... Notch.
Claims (1)
の光軸方向に変位可能な様に上記基体に対して可
動的に設けられた支持体と、 該支持体に、その磁束中心線が対物レンズ光軸
に直角な面内に配される様に固定されたフオーカ
シングコイルと、 上記基体に固定され、上記フオーカシングコイ
ルの対物レンズ光軸に直角な面と平行な辺のうち
、基体より遠い側の辺に作用するマグネツトとか
ら成り、 上記基体には、上記フオーカシングコイルのう
ち、上記マグネツトの作用を受ける辺に対向する
部分の進入を許容する切欠が設けられていること
を特徴とする対物レンズ駆動装置。[Claims for Utility Model Registration] A base, a support that supports an objective lens and is movably provided with respect to the base so that it can be displaced along with the objective lens in the direction of its optical axis; , a focusing coil fixed so that its magnetic flux center line is arranged in a plane perpendicular to the optical axis of the objective lens, and a plane fixed to the base body and perpendicular to the optical axis of the objective lens of the focusing coil. and a magnet that acts on the side parallel to the body that is farther from the base body, and allows entry of the part of the focusing coil that faces the side that is affected by the magnet into the base body. An objective lens driving device characterized by being provided with a notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8639888U JPH0211520U (en) | 1988-06-28 | 1988-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8639888U JPH0211520U (en) | 1988-06-28 | 1988-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0211520U true JPH0211520U (en) | 1990-01-24 |
Family
ID=31311036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8639888U Pending JPH0211520U (en) | 1988-06-28 | 1988-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0211520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06192114A (en) * | 1991-01-25 | 1994-07-12 | Suntory Ltd | Medicine comprising extract of hydrangeae dulcis folium as active ingredient and food and cosmetic containing the same blended therein |
-
1988
- 1988-06-28 JP JP8639888U patent/JPH0211520U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06192114A (en) * | 1991-01-25 | 1994-07-12 | Suntory Ltd | Medicine comprising extract of hydrangeae dulcis folium as active ingredient and food and cosmetic containing the same blended therein |