JPS62142726U - - Google Patents
Info
- Publication number
- JPS62142726U JPS62142726U JP2863486U JP2863486U JPS62142726U JP S62142726 U JPS62142726 U JP S62142726U JP 2863486 U JP2863486 U JP 2863486U JP 2863486 U JP2863486 U JP 2863486U JP S62142726 U JPS62142726 U JP S62142726U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- recording medium
- light source
- base
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 1
Description
第１図は本考案の光学式ピツクアツプ装置の側
面図、第２図はその基台の平面図、第３図はその
基台の側面図、第４図はその基台の正面図、第５
図はその光学素子の平面図、第６図はその光学素
子の正面図、第７図はその光学素子のＡ―Ａ側断
面図、第８図はその光学素子の斜視図、第９図乃
至第１１図はその受光素子の平面図、第１２図及
び第１３図はその非点収差の説明図、第１４図及
び第１５図はその受光素子上の光の形状を表す説
明図、第１６図及び第１７図はそのフオーカスエ
ラー信号の特性図、第１８図乃至第２１図はその
他の実施例の側面図である。
１……基台、２……光源、３，４……受光素子
、５……光学素子、６……対物レンズ、７……デ
イスク。
Fig. 1 is a side view of the optical pickup device of the present invention, Fig. 2 is a plan view of its base, Fig. 3 is a side view of its base, Fig. 4 is a front view of its base, and Fig. 5 is a side view of the optical pickup device of the present invention.
The figure is a plan view of the optical element, Figure 6 is a front view of the optical element, Figure 7 is a sectional view taken along the line AA of the optical element, Figure 8 is a perspective view of the optical element, and Figures 9 to 9. FIG. 11 is a plan view of the light receiving element, FIGS. 12 and 13 are explanatory diagrams of its astigmatism, FIGS. 14 and 15 are explanatory diagrams showing the shape of light on the light receiving element, and FIG. 17 and 17 are characteristic diagrams of the focus error signal, and FIGS. 18 to 21 are side views of other embodiments. 1... Base, 2... Light source, 3, 4... Light receiving element, 5... Optical element, 6... Objective lens, 7... Disk.
Claims (1)
と、該記録媒体を経た該光を受光する受光素子と
、該光源から該受光素子までの光路中に配置され
、該光源より発せられた該光を該記録媒体の方向
に反射させるとともに、該記録媒体を経た該光を
該受光素子の方向に２つに分割して反射させる光
学素子と、該光源と該受光素子を取り付けた基台
とを備え、２つに分割された該光を受光する２つ
の該受光素子は、該基台上の同一の平面上に配置
されていることを特徴とする光学式ピツクアツプ
装置。 A light source that emits light for recording and reproducing information on a recording medium, a light receiving element that receives the light that has passed through the recording medium, and a light receiving element disposed in an optical path from the light source to the light receiving element, and the light emitted from the light source. an optical element that reflects the light in the direction of the recording medium and divides the light that has passed through the recording medium into two parts in the direction of the light receiving element; and a base on which the light source and the light receiving element are attached. An optical pickup device comprising: two light-receiving elements for receiving the light divided into two parts, and the two light-receiving elements are arranged on the same plane on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986028634U JPH0731373Y2 (en) | 1986-02-28 | 1986-02-28 | Optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986028634U JPH0731373Y2 (en) | 1986-02-28 | 1986-02-28 | Optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62142726U true JPS62142726U (en) | 1987-09-09 |
| JPH0731373Y2 JPH0731373Y2 (en) | 1995-07-19 |
Family
ID=30831782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986028634U Expired - Lifetime JPH0731373Y2 (en) | 1986-02-28 | 1986-02-28 | Optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731373Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06314437A (en) * | 1993-04-30 | 1994-11-08 | Sharp Corp | Optical information reader |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141150A (en) * | 1982-02-16 | 1983-08-22 | 松下電工株式会社 | Vibration type massager |
-
1986
- 1986-02-28 JP JP1986028634U patent/JPH0731373Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141150A (en) * | 1982-02-16 | 1983-08-22 | 松下電工株式会社 | Vibration type massager |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06314437A (en) * | 1993-04-30 | 1994-11-08 | Sharp Corp | Optical information reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731373Y2 (en) | 1995-07-19 |
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