JPS6365124U - - Google Patents
Info
- Publication number
- JPS6365124U JPS6365124U JP15946286U JP15946286U JPS6365124U JP S6365124 U JPS6365124 U JP S6365124U JP 15946286 U JP15946286 U JP 15946286U JP 15946286 U JP15946286 U JP 15946286U JP S6365124 U JPS6365124 U JP S6365124U
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding plate
- objective lens
- blocked
- emitting 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図および第２図は本考案にかかる光ピツク
アツプの対物レンズ駆動機構を示した概略平面図
および断面図、第３図は発光素子と受光素子と遮
光板の位置関係を例示した概略断面図、第４図は
対物レンズのトラツキング方向への移動位置検出
を説明するための概略図、第５図は光ピツクアツ
プの概略構成図である。
１８…対物レンズ、１９…レンズホルダ、２５
…遮光板、２６…発光素子、２７…受光素子。
1 and 2 are a schematic plan view and a sectional view showing an objective lens drive mechanism of an optical pickup according to the present invention, and FIG. 3 is a schematic sectional view illustrating the positional relationship between a light emitting element, a light receiving element, and a light shielding plate. , FIG. 4 is a schematic diagram for explaining the detection of the movement position of the objective lens in the tracking direction, and FIG. 5 is a schematic diagram of the configuration of the optical pickup. 18...Objective lens, 19...Lens holder, 25
... light shielding plate, 26 ... light emitting element, 27 ... light receiving element.
Claims (1)
物レンズで絞つた光ビームを位置決めする位置決
め機構とその焦点を合せる焦点合せ機構を備えた
光ピツクアツプにおいて、上記対物レンズを保持
しているレンズホルダに取り付けられた遮光板と
、この遮光板によつて遮光される光を出力する発
光素子と、上記遮光板をはさんで上記発光素子と
対向配設され上記遮光板で遮光されなかつた部分
の上記光を受光する受光素子を備え、上記受光素
子の出力信号を上記対物レンズの位置信号として
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。 In an optical pickup equipped with a positioning mechanism for positioning a light beam focused by an objective lens on a recording track formed on an optical storage medium and a focusing mechanism for focusing the light beam, the objective lens is attached to a lens holder holding the objective lens. a light-shielding plate, a light-emitting element that outputs the light that is blocked by the light-shielding plate, and a light-emitting element that outputs the light that is blocked by the light-shielding plate, and a portion of the light that is not blocked by the light-shielding plate and is arranged opposite to the light-emitting element across the light-shielding plate. What is claimed is: 1. An optical pickup comprising: a light-receiving element for receiving light; an output signal of the light-receiving element is fed back to the positioning mechanism as a position signal for the objective lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15946286U JPS6365124U (en) | 1986-10-20 | 1986-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15946286U JPS6365124U (en) | 1986-10-20 | 1986-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6365124U true JPS6365124U (en) | 1988-04-28 |
Family
ID=31083919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15946286U Pending JPS6365124U (en) | 1986-10-20 | 1986-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6365124U (en) |
-
1986
- 1986-10-20 JP JP15946286U patent/JPS6365124U/ja active Pending
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