JP4201196B2 - 光ヘッド装置および光ディスク装置 - Google Patents

光ヘッド装置および光ディスク装置 Download PDF

Info

Publication number
JP4201196B2
JP4201196B2 JP2004164262A JP2004164262A JP4201196B2 JP 4201196 B2 JP4201196 B2 JP 4201196B2 JP 2004164262 A JP2004164262 A JP 2004164262A JP 2004164262 A JP2004164262 A JP 2004164262A JP 4201196 B2 JP4201196 B2 JP 4201196B2
Authority
JP
Japan
Prior art keywords
light
substrate
information medium
thickness
information
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
JP2004164262A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004281050A (ja
JP2004281050A5 (enrdf_load_stackoverflow
Inventor
慶明 金馬
定夫 水野
賢一郎 浦入
秀樹 林
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.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co 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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2004164262A priority Critical patent/JP4201196B2/ja
Publication of JP2004281050A publication Critical patent/JP2004281050A/ja
Publication of JP2004281050A5 publication Critical patent/JP2004281050A5/ja
Application granted granted Critical
Publication of JP4201196B2 publication Critical patent/JP4201196B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP2004164262A 1995-05-30 2004-06-02 光ヘッド装置および光ディスク装置 Expired - Lifetime JP4201196B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004164262A JP4201196B2 (ja) 1995-05-30 2004-06-02 光ヘッド装置および光ディスク装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13136095 1995-05-30
JP2004164262A JP4201196B2 (ja) 1995-05-30 2004-06-02 光ヘッド装置および光ディスク装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2003293771A Division JP2004039248A (ja) 1995-05-30 2003-08-15 対物レンズ、光ヘッド装置および光ディスク装置

Publications (3)

Publication Number Publication Date
JP2004281050A JP2004281050A (ja) 2004-10-07
JP2004281050A5 JP2004281050A5 (enrdf_load_stackoverflow) 2007-04-19
JP4201196B2 true JP4201196B2 (ja) 2008-12-24

Family

ID=33301327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004164262A Expired - Lifetime JP4201196B2 (ja) 1995-05-30 2004-06-02 光ヘッド装置および光ディスク装置

Country Status (1)

Country Link
JP (1) JP4201196B2 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006043687A1 (en) * 2004-10-22 2006-04-27 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device

Also Published As

Publication number Publication date
JP2004281050A (ja) 2004-10-07

Similar Documents

Publication Publication Date Title
KR100283502B1 (ko) 광 헤드장치
JP3677319B2 (ja) フォーカス制御方法および光ディスク装置
CN101252006B (zh) 光头及光学信息记录再现装置
JPH1010308A (ja) ホログラム、ホログラムを用いた集光光学系及びその集光光学系を有する光ヘッド装置及び光ディスク装置
US7206275B2 (en) Optical pickup device
JPH04318333A (ja) 光ヘッド装置
JP3677342B2 (ja) 光ヘッド装置および光ディスク装置
JP4201196B2 (ja) 光ヘッド装置および光ディスク装置
JP3550914B2 (ja) 光学ピックアップ装置
JP3661680B2 (ja) 光学レンズ、光ヘッド装置および光ディスク装置
JPH0950648A (ja) 光ヘッド装置
JPH0460931A (ja) 光ピックアップ
JP3514708B2 (ja) 光ピックアップ装置
JP2004039248A (ja) 対物レンズ、光ヘッド装置および光ディスク装置
JP3823912B2 (ja) 光ディスク
JP3982547B2 (ja) 光学レンズ及び光ヘッド装置、情報装置
JP3982546B2 (ja) 光学レンズ及び光ヘッド装置、情報装置
JP4155297B2 (ja) 光ディスク及び光ディスクの記録/再生方法
JP4148287B2 (ja) 光学レンズ及び回折レンズ、光ヘッド装置、光情報装置
JP2006313647A (ja) 光学レンズ及び光ヘッド装置、光ディスク装置
JP4068651B2 (ja) 光学レンズおよびこれを用いた光ヘッド装置と光ディスク装置
JPH0453031A (ja) 光ヘッド装置
JPH01220133A (ja) 光ヘッド装置
JP2532818C (enrdf_load_stackoverflow)
JP2006079822A (ja) 光ヘッド装置及び液晶セル、光ディスク装置

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070307

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070612

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070808

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080318

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080519

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20080528

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080902

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20081002

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111017

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121017

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131017

Year of fee payment: 5

EXPY Cancellation because of completion of term