JPH03124330U - - Google Patents
Info
- Publication number
- JPH03124330U JPH03124330U JP3460390U JP3460390U JPH03124330U JP H03124330 U JPH03124330 U JP H03124330U JP 3460390 U JP3460390 U JP 3460390U JP 3460390 U JP3460390 U JP 3460390U JP H03124330 U JPH03124330 U JP H03124330U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- central portion
- optical pick
- view
- excluding
- 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 10
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Optical Head (AREA)
Description
第１図は本考案に係る一実施例の光ピツクアツ
プレンズの外観を示す斜視図、第２図は第１図の
光ピツクアツプレンズを光デイスクドライブの光
ピツクアツプに搭載した状態を示す斜視図、第３
図は第１図の光ピツクアツプレンズを用いた場合
に得られるクリーニング効果を説明するための断
面図、第４図は従来の光ピツクアツプレンズの外
観を示す斜視図、第５図は第４図の断面図、第６
図はクリーニングデイスクを示す斜視図、第７図
は従来の光ピツクアツプレンズの問題点を説明す
るため断面図である。
１０……光ピツクアツプレンズ、１１……突起
部、１２……光ピツクアツプ、１３……クリーニ
ングデイスク、１４……刷毛。
1 is a perspective view showing the appearance of an optical pickup lens according to an embodiment of the present invention; FIG. 2 is a perspective view showing the optical pickup lens of FIG. 1 mounted on an optical pickup of an optical disk drive; 3
The figure is a cross-sectional view for explaining the cleaning effect obtained when using the optical pick-up lens shown in Fig. 1, Fig. 4 is a perspective view showing the appearance of a conventional optical pick-up lens, and Fig. Sectional view, No. 6
The figure is a perspective view showing a cleaning disk, and FIG. 7 is a cross-sectional view for explaining the problems of a conventional optical pickup lens. 10... Optical pick-up lens, 11... Projection, 12... Optical pick-up, 13... Cleaning disk, 14... Brush.
Claims (1)
んでほぼ対向する位置関係にある円弧部分を除い
て、先端が前記レンズ中心部の表面より突出する
突起を設けたことを特徴とする光ピツクアツプレ
ンズ。 An optical pick-up lens characterized in that a protrusion whose tip protrudes from the surface of the central portion of the lens is provided on the outer circumferential portion of the lens, excluding at least the circular arc portions that are substantially opposed to each other across the central portion of the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3460390U JPH03124330U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3460390U JPH03124330U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03124330U true JPH03124330U (en) | 1991-12-17 |
Family
ID=31539223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3460390U Pending JPH03124330U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03124330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004029947A1 (en) * | 2002-09-30 | 2004-04-08 | Pioneer Corporation | Optical disk reproducing device, object lens, protection member and optical disk reproducing method |
| JP5057298B2 (en) * | 2009-09-30 | 2012-10-24 | コニカミノルタアドバンストレイヤー株式会社 | Objective lens and optical pickup device |
-
1990
- 1990-03-29 JP JP3460390U patent/JPH03124330U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004029947A1 (en) * | 2002-09-30 | 2004-04-08 | Pioneer Corporation | Optical disk reproducing device, object lens, protection member and optical disk reproducing method |
| JP5057298B2 (en) * | 2009-09-30 | 2012-10-24 | コニカミノルタアドバンストレイヤー株式会社 | Objective lens and optical pickup device |
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