JPH0340662U - - Google Patents
Info
- Publication number
- JPH0340662U JPH0340662U JP10013689U JP10013689U JPH0340662U JP H0340662 U JPH0340662 U JP H0340662U JP 10013689 U JP10013689 U JP 10013689U JP 10013689 U JP10013689 U JP 10013689U JP H0340662 U JPH0340662 U JP H0340662U
- Authority
- JP
- Japan
- Prior art keywords
- light shielding
- carriage
- shielding member
- head
- optical disk
- 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 10
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000003708 edge detection Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図は本考案の一実施例の光デイスク装置の
側面図、第２図は第１図における実施例の光デイ
スク装置の制御回路を示すブロツク図、第３図は
従来の光デイスク装置の側面図、第４図は従来の
光デイスク装置の制御回路を示すブロツク図であ
る。
１，２……エツジセンサ、３，２０……エツジ
センサ遮断板、４……ヘツド、５……フレーム、
６……レール、７……キヤリツジ、８……スピン
ドルモータ、２０，２１，３０……エツジセンサ
制御回路、２２……表示回路、３１，３２……移
動方向判定回路。
FIG. 1 is a side view of an optical disk device according to an embodiment of the present invention, FIG. 2 is a block diagram showing a control circuit of the optical disk device according to the embodiment shown in FIG. 1, and FIG. 3 is a side view of a conventional optical disk device. The side view of FIG. 4 is a block diagram showing a control circuit of a conventional optical disk device. 1, 2... Edge sensor, 3, 20... Edge sensor blocking plate, 4... Head, 5... Frame,
6... Rail, 7... Carriage, 8... Spindle motor, 20, 21, 30... Edge sensor control circuit, 22... Display circuit, 31, 32... Movement direction determination circuit.
Claims (1)
と、該キヤリツジに固定され光デイスク上のトラ
ツクからデータを読み取るヘツドと、前記レール
の延設方向に略平行に設けられたフレームと、前
記キヤリツジからフレーム側に突設され光を遮断
する光遮蔽部材と、前記フレームから前記キヤリ
ツジ側に突設され前記光遮蔽部材により前記光が
遮断されているか否かを検出してエツジ検出信号
を出力する光センサと、該エツジ検出信号に基づ
いて前記ヘツドが前記所定のトラツク範囲に位置
しているか否かを判定する判定回路とを備える光
デイスク装置において、 基板部に２つの光遮蔽突出部を前記トラツク範
囲に相当する間隔で突出させて前記光遮蔽部材を
形成し、前記基板部が前記キヤリツジに沿つた状
態で該光遮蔽部材を取り付けると共に、 前記光センサを１個で構成し、前記ヘツドが前
記トラツク範囲内にあるときに、前記光遮蔽突出
部間に突出する位置に前記光センサを取り付けて
あることを特徴とする光デイスク装置。[Claims for Utility Model Registration] A carriage slidably attached to a rail, a head fixed to the carriage and reading data from a track on an optical disk, and a head provided substantially parallel to the extending direction of the rail. a frame, a light shielding member protruding from the carriage toward the frame and blocking light; and a light shielding member protruding from the frame toward the carriage and detecting whether or not the light is blocked by the light shielding member. An optical disk device comprising an optical sensor that outputs a detection signal, and a determination circuit that determines whether or not the head is located within the predetermined track range based on the edge detection signal. The light shielding member is formed by protruding shielding protrusions at intervals corresponding to the track range, and the light shielding member is attached with the substrate portion along the carriage, and the optical sensor is composed of one piece. An optical disk device characterized in that the optical sensor is mounted at a position that projects between the light shielding protrusions when the head is within the track range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10013689U JPH0340662U (en) | 1989-08-28 | 1989-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10013689U JPH0340662U (en) | 1989-08-28 | 1989-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0340662U true JPH0340662U (en) | 1991-04-18 |
Family
ID=31649156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10013689U Pending JPH0340662U (en) | 1989-08-28 | 1989-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0340662U (en) |
-
1989
- 1989-08-28 JP JP10013689U patent/JPH0340662U/ja active Pending
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