JPH032428U - - Google Patents
Info
- Publication number
- JPH032428U JPH032428U JP5963989U JP5963989U JPH032428U JP H032428 U JPH032428 U JP H032428U JP 5963989 U JP5963989 U JP 5963989U JP 5963989 U JP5963989 U JP 5963989U JP H032428 U JPH032428 U JP H032428U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- main body
- closed
- system main
- optical system
- 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 16
Landscapes
- Optical Head (AREA)
Description
第１図Ａ，Ｂは、本考案の第１実施例の側面図
、光学部品のみの平面図、第２図Ａ，Ｂは、本考
案の第２実施例の側面図、光学部品のみの平面図
、第３図Ａ，Ｂは、本考案の第３実施例の側面図
、光学部品のみの平面図、第４図Ａ，Ｂは、従来
例を示したものである。
１……ピツクアツプ本体、６……1/4波長板、
７……対物レンズ、１１……筺体、１２……可動
部材、１２ａ……開口部。
Figures 1A and B are a side view of the first embodiment of the present invention, a plan view of only the optical components, and Figures 2A and B are side views of the second embodiment of the present invention, a plane view of only the optical components. Figures 3A and 3B are a side view and a plan view of only the optical components of the third embodiment of the present invention, and Figures 4A and 4B show a conventional example. 1...Pick-up body, 6...1/4 wavelength plate,
7... Objective lens, 11... Housing, 12... Movable member, 12a... Opening.
補正 平１．８．１０
図面の簡単な説明を次のように補正する。
明細書第１０頁第２０行の「１１……筺体」を
「１１……アクチユエータ」に訂正する。Amendment 1.8.10 Hei 1. The brief description of the drawing is amended as follows. In the specification, page 10, line 20, "11...housing" is corrected to "11...actuator".
Claims (1)
クアツプにおいて、 対物レンズを具備したレンズ枠とこれを光軸方
向に移動可能に保持した筒を設けた対物レンズ駆
動部が光学部品を配設したピツクアツプ本体に連
続する個所における前記筒の開口部を、透明部材
で閉塞したことを特徴とする光学式ピツクアツプ
。 ２ 光学的情報記録再生装置に用い可動光学系本
体、固定光学系本体を有する光学式ピツクアツプ
において、 対物レンズ駆動部の筒の開口部を透明部材で閉
塞するとともに前記可動光学系本体と固定光学系
本体との光路上で対向する開口部を透明部材で閉
塞したことを特徴とする光学式ピツクアツプ。[Scope of Claim for Utility Model Registration] 1. In an optical pickup used for an optical information recording and reproducing device, an objective lens drive section is provided with a lens frame equipped with an objective lens and a cylinder that holds the lens frame movably in the optical axis direction. 1. An optical pickup characterized in that an opening of the cylinder at a location continuous with a pickup main body in which optical components are arranged is closed with a transparent member. 2. In an optical pickup used in an optical information recording/reproducing device and having a movable optical system main body and a fixed optical system main body, the opening of the cylinder of the objective lens driving section is closed with a transparent member, and the movable optical system main body and the fixed optical system main body are closed. An optical pick-up characterized in that an opening facing the main body on an optical path is closed with a transparent member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5963989U JPH032428U (en) | 1989-05-25 | 1989-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5963989U JPH032428U (en) | 1989-05-25 | 1989-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032428U true JPH032428U (en) | 1991-01-11 |
Family
ID=31586313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5963989U Pending JPH032428U (en) | 1989-05-25 | 1989-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032428U (en) |
-
1989
- 1989-05-25 JP JP5963989U patent/JPH032428U/ja active Pending
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