JPH01116918U - - Google Patents
Info
- Publication number
- JPH01116918U JPH01116918U JP1340888U JP1340888U JPH01116918U JP H01116918 U JPH01116918 U JP H01116918U JP 1340888 U JP1340888 U JP 1340888U JP 1340888 U JP1340888 U JP 1340888U JP H01116918 U JPH01116918 U JP H01116918U
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- disk
- recording surface
- calculating
- tilt
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案によるデイスク傾き検出装置を
備えたチルトサーボ装置の一例を示す構成図、第
２図は第１図における距離センサの一例を示す側
面図Ａ及び平面図Ｂ、第３図は距離センサの配設
位置を示す平面図である。
主要部分の符号の説明、１……デイスク、４…
…ピツクアツプ、５……ガイドバー、６……チル
トモータ、８……距離センサ、１１……発光素子
、１２ａ，１２ｂ……受光素子、１４……演算回
路。
Fig. 1 is a configuration diagram showing an example of a tilt servo device equipped with a disk tilt detection device according to the present invention, Fig. 2 is a side view A and a plan view B showing an example of the distance sensor in Fig. 1, and Fig. 3 is a distance FIG. 3 is a plan view showing the arrangement positions of sensors. Explanation of symbols of main parts, 1...disk, 4...
... Pickup, 5 ... Guide bar, 6 ... Tilt motor, 8 ... Distance sensor, 11 ... Light emitting element, 12a, 12b ... Light receiving element, 14 ... Arithmetic circuit.
Claims (1)
の情報記録面に対して直角になるように制御する
チルトサーボ装置におけるデイスク傾き検出装置
であつて、前記情報記録デイスクの半径方向にお
けるデイスク中心から所定距離の位置に配置され
てその位置における前記情報記録面の基準面から
の離間距離を検出する検出手段と、前記所定距離
及び前記離間距離に基づいて前記情報記録面の前
記基準面に対する傾き角を算出する演算手段とを
備え、前記演算手段の演算出力を前記チルトサー
ボ装置の制御入力とすることを特徴とするデイス
ク傾き検出装置。 A disk inclination detection device in a tilt servo device that controls the optical axis of an information detection light beam to be perpendicular to the information recording surface of the information recording disk, the device comprising: a predetermined distance from the disk center in the radial direction of the information recording disk; a detection means arranged at a position to detect a separation distance of the information recording surface from a reference plane at that position, and calculating an inclination angle of the information recording surface with respect to the reference plane based on the predetermined distance and the separation distance. 1. A disk tilt detection device, comprising: arithmetic means for calculating, and using a calculation output of the arithmetic means as a control input for the tilt servo device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1340888U JPH01116918U (en) | 1988-02-02 | 1988-02-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1340888U JPH01116918U (en) | 1988-02-02 | 1988-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01116918U true JPH01116918U (en) | 1989-08-07 |
Family
ID=31223690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1340888U Pending JPH01116918U (en) | 1988-02-02 | 1988-02-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01116918U (en) |
-
1988
- 1988-02-02 JP JP1340888U patent/JPH01116918U/ja active Pending
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