JPH0171314U - - Google Patents
Info
- Publication number
- JPH0171314U JPH0171314U JP1987167791U JP16779187U JPH0171314U JP H0171314 U JPH0171314 U JP H0171314U JP 1987167791 U JP1987167791 U JP 1987167791U JP 16779187 U JP16779187 U JP 16779187U JP H0171314 U JPH0171314 U JP H0171314U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- pick
- mounting plane
- optical axis
- optical
- 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 4
- 238000010137 moulding (plastic) Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Optical Head (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は説明図として溝形状を示す要部断面図、第３
図は同じく説明図としてケーシングと溝部との関
係を示す要部断面図。第４図は従来のピツクアツ
プレンズを示す断面図である。
１……ピツクアツプレンズ、１ａ……取付け平
面部、１ｂ……取付け周面部、２……溝部、３，
４……はみ出し防止部、５……ケーシング、６…
…接着剤、Ｄ……有効径。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view of the main part showing the groove shape as an explanatory diagram.
The figure is also a sectional view of a main part showing the relationship between the casing and the groove part as an explanatory diagram. FIG. 4 is a sectional view showing a conventional pick-up lens. DESCRIPTION OF SYMBOLS 1...Pickup lens, 1a...Mounting plane part, 1b...Mounting peripheral surface part, 2...Groove part, 3,
4...Protrusion prevention part, 5...Casing, 6...
...Adhesive, D...Effective diameter.
Claims (1)
面部側のレンズの有効径部分との間に、光軸を中
心とするリング状の溝部を設けたことを特徴とす
る光デイスク用ピツクアツプレンズ。 (2) 上記レンズは、プラスチツク成型によつて
成形された集光レンズであることを特徴とする実
用新案登録請求の範囲第１項記載の光デイスク用
ピツクアツプレンズ。[Claims for Utility Model Registration] (1) A ring-shaped groove centered on the optical axis is provided between the mounting plane perpendicular to the optical axis and the effective diameter portion of the lens on the side of the mounting plane. A pick-up lens for optical disks is characterized by: (2) The pick-up lens for an optical disk according to claim 1, wherein the lens is a condensing lens molded by plastic molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987167791U JPH0171314U (en) | 1987-10-30 | 1987-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987167791U JPH0171314U (en) | 1987-10-30 | 1987-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0171314U true JPH0171314U (en) | 1989-05-12 |
Family
ID=31456402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987167791U Pending JPH0171314U (en) | 1987-10-30 | 1987-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0171314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351928C (en) * | 2003-05-15 | 2007-11-28 | 夏普株式会社 | Optical pickup apparatus |
| WO2009119192A1 (en) * | 2008-03-26 | 2009-10-01 | コニカミノルタオプト株式会社 | Cemented lens array, cemented lens and method for producing cemented lens array |
-
1987
- 1987-10-30 JP JP1987167791U patent/JPH0171314U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351928C (en) * | 2003-05-15 | 2007-11-28 | 夏普株式会社 | Optical pickup apparatus |
| WO2009119192A1 (en) * | 2008-03-26 | 2009-10-01 | コニカミノルタオプト株式会社 | Cemented lens array, cemented lens and method for producing cemented lens array |
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