JPS6222726U - - Google Patents
Info
- Publication number
- JPS6222726U JPS6222726U JP11334285U JP11334285U JPS6222726U JP S6222726 U JPS6222726 U JP S6222726U JP 11334285 U JP11334285 U JP 11334285U JP 11334285 U JP11334285 U JP 11334285U JP S6222726 U JPS6222726 U JP S6222726U
- Authority
- JP
- Japan
- Prior art keywords
- light
- disk
- receiving element
- light source
- light receiving
- 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 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の一実施例を示す模式的構成図
、第２図は本考案によるピツクアツプ装置の内部
構造を示す斜視図、第３図は第２図における各受
光素子をウエーハより作つた状態を示す斜視図、
第４図Ａ〜Ｃはデイスクの傾きに対応した第３の
受光素子の受光面上の光束形状を示す図、第５図
は従来装置を示す構成図である。
主要部分の符号の説明、３……デイスク、１１
……光源、１２……第１の受光素子、１３……回
折格子、１４……対物レンズ、１５……第２の受
光素子、１６……第３の受光素子。
Fig. 1 is a schematic block diagram showing an embodiment of the present invention, Fig. 2 is a perspective view showing the internal structure of a pick-up device according to the invention, and Fig. 3 is a diagram showing each light receiving element in Fig. 2 made from a wafer. A perspective view showing the state;
4A to 4C are diagrams showing the shape of a light beam on the light receiving surface of the third light receiving element corresponding to the inclination of the disk, and FIG. 5 is a configuration diagram showing a conventional device. Explanation of symbols of main parts, 3... Disk, 11
...Light source, 12...First light receiving element, 13...Diffraction grating, 14...Objective lens, 15...Second light receiving element, 16...Third light receiving element.
Claims (1)
るための第１の受光素子と、前記光源から発せら
れかつ情報記録デイスクに照射される照射光を前
記デイスク上に収束せしめる対物レンズと、前記
デイスクにて反射された反射光の一部を受光して
記録情報信号及びサーボ信号の少なくとも一方を
出力する第２の受光素子と、前記反射光の他の一
部を受光して前記照射光の光軸に対する前記デイ
スクの傾斜角信号を出力する第３の受光素子とを
備え、前記光源、第１、第２及び第３の受光素子
が同一の筐体内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。 (2) 前記第１、第２及び第３の受光素子のうち
少なくとも２つが同一ウエーハより作られている
ことを特徴とする実用新案登録請求の範囲第１項
記載の光学式ピツクアツプ装置。[Claims for Utility Model Registration] (1) A single light source, a first light-receiving element for monitoring the light intensity of the light source, and an irradiation light emitted from the light source and irradiated onto the information recording disk. an objective lens that focuses the light onto the disk; a second light receiving element that receives a portion of the reflected light reflected by the disk and outputs at least one of a recording information signal and a servo signal; a third light receiving element that receives a portion of the light and outputs an inclination angle signal of the disk with respect to the optical axis of the irradiated light, and the light source, the first, second and third light receiving elements are housed in the same housing. An optical pickup device characterized by being placed inside the body. (2) The optical pickup device according to claim 1, wherein at least two of the first, second and third light receiving elements are made from the same wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985113342U JPH0519856Y2 (en) | 1985-07-23 | 1985-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985113342U JPH0519856Y2 (en) | 1985-07-23 | 1985-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6222726U true JPS6222726U (en) | 1987-02-12 |
| JPH0519856Y2 JPH0519856Y2 (en) | 1993-05-25 |
Family
ID=30995057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985113342U Expired - Lifetime JPH0519856Y2 (en) | 1985-07-23 | 1985-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0519856Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0244530A (en) * | 1988-08-04 | 1990-02-14 | Mitsubishi Electric Corp | Optical head device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58108037A (en) * | 1981-12-18 | 1983-06-28 | Mitsubishi Electric Corp | Optical pickup |
-
1985
- 1985-07-23 JP JP1985113342U patent/JPH0519856Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58108037A (en) * | 1981-12-18 | 1983-06-28 | Mitsubishi Electric Corp | Optical pickup |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0244530A (en) * | 1988-08-04 | 1990-02-14 | Mitsubishi Electric Corp | Optical head device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0519856Y2 (en) | 1993-05-25 |
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