JPS62142724U - - Google Patents
Info
- Publication number
- JPS62142724U JPS62142724U JP2863286U JP2863286U JPS62142724U JP S62142724 U JPS62142724 U JP S62142724U JP 2863286 U JP2863286 U JP 2863286U JP 2863286 U JP2863286 U JP 2863286U JP S62142724 U JPS62142724 U JP S62142724U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- light receiving
- recording medium
- 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
- 230000004075 alteration Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Description
第１図、第１０図及び第１１図は本考案の光学
式ピツクアツプ装置の受光素子の平面図、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図はその光学式ピ
ツクアツプ装置の側面図、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１
６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。
1, 10, and 11 are plan views of the light receiving element 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, and FIG. The figure is a front view of the base, Figure 5 is a plan view of the optical element, Figure 6 is a front view of the optical element,
FIG. 7 is a sectional view taken along the line AA of the optical element, FIG. 8 is a perspective view of the optical element, FIG. 9 is a side view of the optical pickup device, and FIGS. 12 and 13 are the astigmatism points. Figures 14 and 15 are explanatory diagrams of aberrations, and Figures 14 and 15 are explanatory diagrams showing the shape of light on the light receiving element.
6 and 17 are characteristic diagrams of the focus error signal, and FIGS. 18 to 21 are side views of other embodiments. DESCRIPTION OF SYMBOLS 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
に指向させるとともに、該記録媒体を経た該光を
該受光素子の方向に指向させる光学素子と、該受
光素子を取り付けた基台とを備え、該受光素子は
該基台上の所定の点に対して傾斜していることを
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 directs the light in the direction of the recording medium and directs the light that has passed through the recording medium in the direction of the light receiving element, and a base on which the light receiving element is attached, and the light receiving element is attached to the base. An optical pick-up device characterized by being inclined with respect to a predetermined point above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986028632U JPH082814Y2 (en) | 1986-02-28 | 1986-02-28 | Optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986028632U JPH082814Y2 (en) | 1986-02-28 | 1986-02-28 | Optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62142724U true JPS62142724U (en) | 1987-09-09 |
| JPH082814Y2 JPH082814Y2 (en) | 1996-01-29 |
Family
ID=30831778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986028632U Expired - Lifetime JPH082814Y2 (en) | 1986-02-28 | 1986-02-28 | Optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082814Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040538A (en) * | 1983-08-15 | 1985-03-02 | Toshiba Corp | Optical information reader |
-
1986
- 1986-02-28 JP JP1986028632U patent/JPH082814Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040538A (en) * | 1983-08-15 | 1985-03-02 | Toshiba Corp | Optical information reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082814Y2 (en) | 1996-01-29 |