JPH0476612U - - Google Patents
Info
- Publication number
- JPH0476612U JPH0476612U JP11832590U JP11832590U JPH0476612U JP H0476612 U JPH0476612 U JP H0476612U JP 11832590 U JP11832590 U JP 11832590U JP 11832590 U JP11832590 U JP 11832590U JP H0476612 U JPH0476612 U JP H0476612U
- Authority
- JP
- Japan
- Prior art keywords
- dustproof cover
- light beam
- optical pickup
- signal surface
- disk signal
- 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 9
- 239000012780 transparent material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 1
Description
第１図および第２図は本考案の一実施例を示す
ものである。第１図は対物レンズで集束されたレ
ーザビームが光路部を透過してデイスク信号面に
照射されている状態を示す概略の縦断面図である
。第２図は光ピツクアツプの光学系部品の配置を
示す模式図である。第３図および第４図は従来例
を示すものである。第３図は光ピツクアツプの光
学系部品の配置を示す模式図である。第４図は対
物レンズで集束されたレーザビームがデイスク信
号面に照射されている状態を示す概略の縦断面図
である。
１は半導体レーザ（光源）、４は対物レンズ（
集束部材）、８は防塵カバー、８ａは光路部、９
はデイスク、１１はアクチユエータである。
1 and 2 show an embodiment of the present invention. FIG. 1 is a schematic longitudinal sectional view showing a state in which a laser beam focused by an objective lens passes through an optical path section and is irradiated onto a disk signal surface. FIG. 2 is a schematic diagram showing the arrangement of optical system components of the optical pickup. 3 and 4 show conventional examples. FIG. 3 is a schematic diagram showing the arrangement of optical system components of the optical pickup. FIG. 4 is a schematic longitudinal sectional view showing a state in which a laser beam focused by an objective lens is irradiated onto a disk signal surface. 1 is a semiconductor laser (light source), 4 is an objective lens (
(focusing member), 8 is a dustproof cover, 8a is an optical path section, 9
is a disk, and 11 is an actuator.
Claims (1)
部材を通してデイスク信号面に光ビームを照射す
る光ピツクアツプの防塵カバーにおいて、 上記の防塵カバーにおける集束部材とデイスク
信号面との間には、上記の光ビームが透過可能で
ある透明な材質から成る光路部が形成されている
ことを特徴とする光ピツクアツプの防塵カバー。[Scope of Claim for Utility Model Registration] In a dustproof cover for an optical pickup that irradiates a light beam onto a disk signal surface through a focusing member that focuses a light beam emitted from a light source, the combination between the focusing member and the disk signal surface in the dustproof cover described above A dustproof cover for an optical pickup, characterized in that an optical path section made of a transparent material through which the above-mentioned light beam can pass is formed between the covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11832590U JPH0476612U (en) | 1990-11-09 | 1990-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11832590U JPH0476612U (en) | 1990-11-09 | 1990-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476612U true JPH0476612U (en) | 1992-07-03 |
Family
ID=31866243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11832590U Pending JPH0476612U (en) | 1990-11-09 | 1990-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476612U (en) |
-
1990
- 1990-11-09 JP JP11832590U patent/JPH0476612U/ja active Pending
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