JPS62101119U - - Google Patents
Info
- Publication number
- JPS62101119U JPS62101119U JP19348485U JP19348485U JPS62101119U JP S62101119 U JPS62101119 U JP S62101119U JP 19348485 U JP19348485 U JP 19348485U JP 19348485 U JP19348485 U JP 19348485U JP S62101119 U JPS62101119 U JP S62101119U
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- light
- positioning mechanism
- semiconductor position
- detecting element
- 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
- 239000004065 semiconductor Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示した斜視図、第
２図は同平面図、第３図は半導体位置検出素子に
よる位置検出の原理を説明するための概略構成図
、第４図は中心からの距離と位置信号の関係を示
したグラフ図、第５図は各部の寸法を設定するこ
とを説明するための概略構成図、第６図ａは発光
ダイオードの発光特性を説明するための概略図、
同図ｂは同グラフ図、第７図は光ピツクアツプの
一般的構成を示した概略構成図である。
１７……アパーチヤ、１８……遮光板、１９…
…発光ダイオード、２０……半導体位置検出素子
。
FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a schematic configuration diagram for explaining the principle of position detection using a semiconductor position detection element, and FIG. A graph showing the relationship between the distance from the center and the position signal, Figure 5 is a schematic configuration diagram to explain setting the dimensions of each part, and Figure 6a is a diagram to explain the light emitting characteristics of the light emitting diode. Schematic,
FIG. 7b is a graph diagram of the same, and FIG. 7 is a schematic diagram showing the general configuration of an optical pickup. 17...Aperture, 18...Shading plate, 19...
...Light emitting diode, 20...Semiconductor position detection element.
Claims (1)
に光ビームを位置決めする位置決め機構を備えた
光ピツクアツプにおいて、上記位置決め機構に取
り付けられて所定寸法のアパーチヤが形成された
アパーチヤ板と、このアパーチヤを通過する光を
発光する発光素子と、上記アパーチヤを通過した
光を受光してその受光位置に対応した位置信号を
発生する半導体位置検出素子を備え、上記位置決
め機構が移動しうる最大距離を移動したときの上
記半導体位置検出素子における受光位置が、この
半導体位置検出素子の受光面の所定の範囲に入る
ように、上記アパーチヤ板と上記発光素子と上記
半導体位置検出素子のおのおのの間隔を設定する
とともに、上記半導体位置検出素子から出力され
る上記位置信号を上記位置決め機構にフイードバ
ツクすることを特徴とする光ピツクアツプ。 (2) 実用新案登録請求の範囲第１項記載におい
て、前記アパーチヤの径は、前記発光素子の中心
からそのアパーチヤの縁までの角度が所定値にな
るように設定することを特徴とする光ピツクアツ
プ。[Claims for Utility Model Registration] (1) In an optical pickup equipped with a positioning mechanism for positioning a light beam on a recording track formed on an optical storage medium, an aperture of a predetermined size is formed by being attached to the positioning mechanism. The positioning mechanism comprises: an aperture plate having an aperture, a light emitting element that emits light passing through the aperture, and a semiconductor position detection element that receives the light that has passed through the aperture and generates a position signal corresponding to the light receiving position; The aperture plate, the light-emitting element, and the semiconductor position-detecting element are arranged so that the light-receiving position of the semiconductor position-detecting element when the semiconductor position-detecting element moves the maximum distance it can be moved falls within a predetermined range of the light-receiving surface of the semiconductor position-detecting element. An optical pickup characterized in that the distance between the two positions is set, and the position signal output from the semiconductor position detection element is fed back to the positioning mechanism. (2) Utility model registration Claim 1, wherein the diameter of the aperture is set such that the angle from the center of the light emitting element to the edge of the aperture is a predetermined value. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19348485U JPS62101119U (en) | 1985-12-18 | 1985-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19348485U JPS62101119U (en) | 1985-12-18 | 1985-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62101119U true JPS62101119U (en) | 1987-06-27 |
Family
ID=31149547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19348485U Pending JPS62101119U (en) | 1985-12-18 | 1985-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62101119U (en) |
-
1985
- 1985-12-18 JP JP19348485U patent/JPS62101119U/ja active Pending
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