JPS5982335U - Optical disk inspection equipment - Google Patents
Optical disk inspection equipmentInfo
- Publication number
- JPS5982335U JPS5982335U JP17759282U JP17759282U JPS5982335U JP S5982335 U JPS5982335 U JP S5982335U JP 17759282 U JP17759282 U JP 17759282U JP 17759282 U JP17759282 U JP 17759282U JP S5982335 U JPS5982335 U JP S5982335U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- drive section
- section
- disk inspection
- inspection apparatus
- 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.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図°〜第７図はいずれも本考案の一実施例を示す図
で、第１図は本検査装置の概略構成図、第２図は光学・
＼ラドの概略構成図、第３図及び第４図はフォーカス及
びトラッキング駆動部の周波数特性の一例を示す線図、
第５図は上記駆動部の変位量−人力信号値特性の一例を
示す線図、第６図及び第７図は補償部の回路例を示す回
路図である。
１・・・光学ヘッド、２・・・制御部、３・・・補償部
、４・・・移動テープ／Ｉ、ｚ、５・・・光ディスク、
１７・・・フォーカス駆動部、１８・・・トラッキング
駆動部。 。Figures 1 to 7 all show one embodiment of the present invention, with Figure 1 being a schematic diagram of the inspection device, and Figure 2 being an optical/
＼A schematic configuration diagram of RAD, FIGS. 3 and 4 are diagrams showing an example of the frequency characteristics of the focus and tracking drive unit,
FIG. 5 is a diagram showing an example of the displacement amount-human power signal value characteristic of the drive section, and FIGS. 6 and 7 are circuit diagrams showing circuit examples of the compensation section. DESCRIPTION OF SYMBOLS 1... Optical head, 2... Control part, 3... Compensation part, 4... Moving tape/I, z, 5... Optical disk,
17... Focus drive section, 18... Tracking drive section. .
Claims (3)
構を有する光学ヘッドと、このオートフォーカスおよび
オートトラッキング機構の駆動部の特性と逆の特性を有
する補償部とを具備し１、前記駆動部より得られる電気
信号を前記補償部を通じて検出し、この補償部からの信
号に基づいて光ディスクのうねり量とディスク面のビッ
ト列等の真円度を測定することを特徴とする光デイスク
検査装置。(1) An optical head having an autofocus and auto-tracking mechanism, and a compensation section having characteristics opposite to those of the drive section of the autofocus and autotracking mechanism, 1, an electrical signal obtained from the drive section; An optical disk inspection apparatus characterized in that the amount of waviness of the optical disk and the roundness of a bit string on the disk surface are measured based on the signal from the compensation section.
気信号値との特性である三とを特徴とする実用新案登録
請求の範囲第（１）項記載の光デイスク検査装置。(2) The optical disk inspection apparatus according to claim 1, wherein the characteristics of the driving section are frequency characteristics, displacement amount, and electric signal value characteristics.
動部であることを特徴とする実用新案登録請求の範囲第
（１）項記載の光デイスク検査装置。(3) The optical disk inspection apparatus according to claim (1), wherein the drive section is a focus drive section and a tracking drive section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17759282U JPS5982335U (en) | 1982-11-24 | 1982-11-24 | Optical disk inspection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17759282U JPS5982335U (en) | 1982-11-24 | 1982-11-24 | Optical disk inspection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5982335U true JPS5982335U (en) | 1984-06-04 |
| JPH0318883Y2 JPH0318883Y2 (en) | 1991-04-22 |
Family
ID=30385788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17759282U Granted JPS5982335U (en) | 1982-11-24 | 1982-11-24 | Optical disk inspection equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5982335U (en) |
-
1982
- 1982-11-24 JP JP17759282U patent/JPS5982335U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0318883Y2 (en) | 1991-04-22 |
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