JPH01107063U

JPH01107063U -

Info

Publication number: JPH01107063U
Application number: JP65188U
Authority: JP
Priority date: 1988-01-07
Filing date: 1988-01-07
Publication date: 1989-07-19

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例を示す
ものであつて、第１図は光ピツクアツプの送り機
構および位置検出装置を示す概略の機構構成図、
第２図はセンサープレートの説明図、第３図は目
的情報を読み取るためのフローチヤート、第４図
ａは光デイスク上の情報エリアの振り分け例を示
す説明図、同図ｂはそのＸ―Ｘ矢視断面図、同図
ｃはそのＤ矢示部の説明図、第５図および第６図
は従来例を示すものであつて、第５図は光ピツク
アツプの送り機構を示す概略の機構構成図、第６
図は目的情報を読み取るためのフローチヤートで
ある。１７は光ピツクアツプ、２０はプーリー（回転
部材）、２３はモーター、２４はスイツチ、２５
はセンサープレート、２６はフオトインタラプタ
、２７はロータリーエンコーダ、２８は演算手段
、３０は光ピツクアツプ送り機構である。 1 to 3 show an embodiment of the present invention, in which FIG. 1 is a schematic mechanical configuration diagram showing a feeding mechanism and a position detection device of an optical pickup;
Figure 2 is an explanatory diagram of the sensor plate, Figure 3 is a flowchart for reading target information, Figure 4a is an explanatory diagram showing an example of how the information areas on the optical disk are distributed, and Figure b is the X-X diagram. A cross-sectional view taken in the direction of arrow D, FIG. Figure, 6th
The figure is a flowchart for reading target information. 17 is an optical pickup, 20 is a pulley (rotating member), 23 is a motor, 24 is a switch, 25
26 is a sensor plate, 26 is a photointerrupter, 27 is a rotary encoder, 28 is a calculation means, and 30 is an optical pickup feeding mechanism.

Claims

[Scope of utility model registration request]

A sensor plate is provided as one of the rotating members forming the optical pick-up feeding mechanism of the optical disc player, and a photodetecting element is provided near the sensor plate to form a rotary encoder. 1. A position detection device for an optical pickup, comprising a calculation means for calculating whether the position has moved based on the output of the rotary encoder.