JPH0268317U - - Google Patents
Info
- Publication number
- JPH0268317U JPH0268317U JP14642788U JP14642788U JPH0268317U JP H0268317 U JPH0268317 U JP H0268317U JP 14642788 U JP14642788 U JP 14642788U JP 14642788 U JP14642788 U JP 14642788U JP H0268317 U JPH0268317 U JP H0268317U
- Authority
- JP
- Japan
- Prior art keywords
- optical pickup
- sensor
- pick
- guide shaft
- movement
- 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 9
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図は本考案の一実施例に係るピツクアツプ
検知装置を説明するための斜視図、第２図は第１
図の側面図、第３図は第１図の正面図、第４図は
被検知パターンがセンサによつて検知される様子
を説明するための図、第５Ａ図〜第５Ｅ図はセン
サによる被検知パターンの検知によつて出力され
る信号の波形図、第６図は本考案の他の実施例を
示すピツクアツプ検知装置の側面図、第７図は従
来の光ピツクアツプの斜視図、第８図はリニアエ
ンコーダの拡大斜視図である。
１０…光ピツクアツプ、１１…ターンテーブル
、１２…対物レンズ、１３…ガイド軸、１８…制
御部、１９…センサ、２１…支持板、２１ａ…被
検知パターン、Ｓ…単位検知部。
FIG. 1 is a perspective view for explaining a pick-up detection device according to an embodiment of the present invention, and FIG.
3 is a front view of FIG. 1, FIG. 4 is a diagram for explaining how a detected pattern is detected by a sensor, and FIGS. 5A to 5E are a side view of FIG. FIG. 6 is a side view of a pickup detection device showing another embodiment of the present invention; FIG. 7 is a perspective view of a conventional optical pickup; FIG. is an enlarged perspective view of a linear encoder. DESCRIPTION OF SYMBOLS 10... Optical pickup, 11... Turntable, 12... Objective lens, 13... Guide shaft, 18... Control section, 19... Sensor, 21... Support plate, 21a... Detected pattern, S... Unit detection section.
Claims (1)
に対向する光ピツクアツプと、この光ピツクアツ
プをデイスクの半径方向へ移動できるように支持
するガイド軸と、前記ガイド軸を傾斜方向へ動作
させる補正駆動装置とが設けられている光デイス
クプレーヤにおいて、前記光ピツクアツプにはセ
ンサが搭載されているとともに、このセンサによ
つて検知される被検知体が光ピツクアツプの移動
方向に沿つて設けられており、この被検知体は光
ピツクアツプの移動方向に沿つて等間隔にて設け
られた複数の単位検知部から成り、このそれぞれ
の単位検知部の光ピツクアツプ移動方向への幅寸
法は、前記ガイド軸が傾斜して光ピツクアツプの
センサが移動する方向に沿つて徐々に変化してい
ることを特徴とするピツクアツプ検知装置。 An optical pickup facing a recording surface of a disk installed on a turntable, a guide shaft that supports the optical pickup so as to be movable in a radial direction of the disk, and a correction drive device that moves the guide shaft in an inclined direction. In the optical disc player provided with the optical pickup, a sensor is mounted on the optical pickup, and a detected object to be detected by the sensor is provided along the moving direction of the optical pickup. The body consists of a plurality of unit detection sections provided at equal intervals along the direction of movement of the optical pickup. A pick-up detection device characterized in that a pick-up sensor gradually changes along the direction of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14642788U JPH0268317U (en) | 1988-11-08 | 1988-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14642788U JPH0268317U (en) | 1988-11-08 | 1988-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0268317U true JPH0268317U (en) | 1990-05-23 |
Family
ID=31415908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14642788U Pending JPH0268317U (en) | 1988-11-08 | 1988-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0268317U (en) |
-
1988
- 1988-11-08 JP JP14642788U patent/JPH0268317U/ja active Pending