JPH0749414Y2 - 光ディスク検査装置 - Google Patents

光ディスク検査装置

Info

Publication number
JPH0749414Y2
JPH0749414Y2 JP19806687U JP19806687U JPH0749414Y2 JP H0749414 Y2 JPH0749414 Y2 JP H0749414Y2 JP 19806687 U JP19806687 U JP 19806687U JP 19806687 U JP19806687 U JP 19806687U JP H0749414 Y2 JPH0749414 Y2 JP H0749414Y2
Authority
JP
Japan
Prior art keywords
guide groove
optical
signal
optical disc
circuit
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.)
Expired - Lifetime
Application number
JP19806687U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01121838U (en:Method
Inventor
秀治 江口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP19806687U priority Critical patent/JPH0749414Y2/ja
Publication of JPH01121838U publication Critical patent/JPH01121838U/ja
Application granted granted Critical
Publication of JPH0749414Y2 publication Critical patent/JPH0749414Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP19806687U 1987-12-26 1987-12-26 光ディスク検査装置 Expired - Lifetime JPH0749414Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19806687U JPH0749414Y2 (ja) 1987-12-26 1987-12-26 光ディスク検査装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19806687U JPH0749414Y2 (ja) 1987-12-26 1987-12-26 光ディスク検査装置

Publications (2)

Publication Number Publication Date
JPH01121838U JPH01121838U (en:Method) 1989-08-18
JPH0749414Y2 true JPH0749414Y2 (ja) 1995-11-13

Family

ID=31488591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19806687U Expired - Lifetime JPH0749414Y2 (ja) 1987-12-26 1987-12-26 光ディスク検査装置

Country Status (1)

Country Link
JP (1) JPH0749414Y2 (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011237255A (ja) * 2010-05-10 2011-11-24 Hitachi High-Technologies Corp パターン形状検査装置及び検査方法並びにパターンドメディアディスク製造ライン

Also Published As

Publication number Publication date
JPH01121838U (en:Method) 1989-08-18

Similar Documents

Publication Publication Date Title
JPS6367549A (ja) 光ディスク用レジスト原盤の欠陥検査及び膜厚測定装置
US4832487A (en) Test system for optical disks
US6751171B2 (en) Method and apparatus for controlling servo loop amplification according to wobble signals formed in a guide groove of an optical disc
JPH0749414Y2 (ja) 光ディスク検査装置
KR101155937B1 (ko) 레이저 이미지 형성 장치를 교정하기 위한 장치 및 방법
JP4466544B2 (ja) 光情報媒体の検査方法および光情報媒体検査装置
JPH0240541A (ja) 表面検査装置
CN1200415C (zh) 在光盘播放器中自动控制聚焦补偿的装置及方法
JPH0725682Y2 (ja) ディスク検査装置
KR101534670B1 (ko) 광 픽업의 온 트랙 판별 장치 및 방법
JP3870130B2 (ja) 光ディスク装置および光ディスクの回転制御方法
JP2601035B2 (ja) 光ピックアップの受光素子位置調整装置
JPS61931A (ja) 光学式記録再生装置
JPH048327Y2 (en:Method)
US20040179456A1 (en) Optical pickup for cutting off optical noise and optical recording and/or reproducing apparatus using the same
JPH01256045A (ja) 光ディスク検査装置
JPH0543370Y2 (en:Method)
JP2000298850A (ja) 光ディスクのフォーカス制御方法および光ディスクのフォーカス制御装置
JPH0318883Y2 (en:Method)
JPH09282658A (ja) ディスク面欠陥検出装置
JP2000315332A (ja) 光学ピックアップの特性測定装置及び光学ピックアップの特性測定方法
JPH02147845A (ja) 光学式情報記録媒体成形用スタンパの検査方法
JPS60261044A (ja) 光デイスク検査装置
JPH01217201A (ja) 情報記録媒体の形状検査装置
JPH0935287A (ja) デフォーカス特性判定方法及びデフォーカス特性判定装置