JP3868119B2 - 収差補正装置、非点収差測定方法及び光ピックアップ - Google Patents
収差補正装置、非点収差測定方法及び光ピックアップ Download PDFInfo
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- JP3868119B2 JP3868119B2 JP20395298A JP20395298A JP3868119B2 JP 3868119 B2 JP3868119 B2 JP 3868119B2 JP 20395298 A JP20395298 A JP 20395298A JP 20395298 A JP20395298 A JP 20395298A JP 3868119 B2 JP3868119 B2 JP 3868119B2
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- Prior art keywords
- astigmatism
- voltage
- aberration correction
- correction apparatus
- pattern
- 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 - Fee Related
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- 201000009310 astigmatism Diseases 0.000 title claims description 180
- 230000004075 alteration Effects 0.000 title claims description 133
- 230000003287 optical effect Effects 0.000 title claims description 125
- 238000012937 correction Methods 0.000 title claims description 99
- 238000000691 measurement method Methods 0.000 title 1
- 239000004973 liquid crystal related substance Substances 0.000 claims description 80
- 238000009826 distribution Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 70
- 238000005259 measurement Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 20
- 210000001747 pupil Anatomy 0.000 description 14
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000010287 polarization Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 206010010071 Coma Diseases 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 206010073261 Ovarian theca cell tumour Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 208000001644 thecoma Diseases 0.000 description 1
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20395298A JP3868119B2 (ja) | 1998-07-17 | 1998-07-17 | 収差補正装置、非点収差測定方法及び光ピックアップ |
| US09/265,892 US6151154A (en) | 1998-03-12 | 1999-03-11 | Optical pickup, aberration correction unit and astigmatism measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20395298A JP3868119B2 (ja) | 1998-07-17 | 1998-07-17 | 収差補正装置、非点収差測定方法及び光ピックアップ |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000040249A JP2000040249A (ja) | 2000-02-08 |
| JP2000040249A5 JP2000040249A5 (enExample) | 2005-04-07 |
| JP3868119B2 true JP3868119B2 (ja) | 2007-01-17 |
Family
ID=16482397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20395298A Expired - Fee Related JP3868119B2 (ja) | 1998-03-12 | 1998-07-17 | 収差補正装置、非点収差測定方法及び光ピックアップ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3868119B2 (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4492035B2 (ja) | 2003-04-21 | 2010-06-30 | 日本電気株式会社 | データ処理装置 |
| EP1742210A4 (en) | 2004-04-28 | 2008-07-02 | Pioneer Corp | ABERRATION CORRECTOR, ABERRATION CORRECTION PROCESS, OPTICAL DEVICE |
| JP2006031829A (ja) | 2004-07-16 | 2006-02-02 | Nidec Sankyo Corp | 収差補正装置及び光ヘッド装置 |
| US8111594B2 (en) | 2004-11-25 | 2012-02-07 | Citizen Holdings Co., Ltd. | Optical disk drive and optical pickup having aberration correction means |
| WO2006104193A1 (ja) * | 2005-03-29 | 2006-10-05 | Pioneer Corporation | 非点収差の調整方法 |
| JP4583444B2 (ja) * | 2005-03-31 | 2010-11-17 | パイオニア株式会社 | 収差補正装置、光ピックアップおよび球面収差補正方法 |
| WO2007029645A1 (ja) * | 2005-09-06 | 2007-03-15 | Pioneer Corporation | 収差補正装置及び収差補正用プログラム |
| JP4521352B2 (ja) | 2005-10-28 | 2010-08-11 | 株式会社日立メディアエレクトロニクス | 光ピックアップおよび光ディスク装置 |
| WO2007055196A1 (ja) * | 2005-11-08 | 2007-05-18 | Nec Corporation | 光学式情報記録/再生装置と、光学式情報記録/再生方法 |
-
1998
- 1998-07-17 JP JP20395298A patent/JP3868119B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000040249A (ja) | 2000-02-08 |
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