JP4059190B2 - 光ヘッド装置 - Google Patents
光ヘッド装置 Download PDFInfo
- Publication number
- JP4059190B2 JP4059190B2 JP2003386370A JP2003386370A JP4059190B2 JP 4059190 B2 JP4059190 B2 JP 4059190B2 JP 2003386370 A JP2003386370 A JP 2003386370A JP 2003386370 A JP2003386370 A JP 2003386370A JP 4059190 B2 JP4059190 B2 JP 4059190B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical element
- order diffracted
- hologram optical
- receiving unit
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims description 304
- 238000000034 method Methods 0.000 claims description 78
- 238000000926 separation method Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 description 22
- 230000010287 polarization Effects 0.000 description 21
- 239000000758 substrate Substances 0.000 description 15
- 230000002159 abnormal effect Effects 0.000 description 8
- 239000011295 pitch Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 2
- 101000630070 Zea mays Probable S-adenosylmethionine synthase Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Landscapes
- Optical Head (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003386370A JP4059190B2 (ja) | 2003-11-17 | 2003-11-17 | 光ヘッド装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003386370A JP4059190B2 (ja) | 2003-11-17 | 2003-11-17 | 光ヘッド装置 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32865698A Division JP3662751B2 (ja) | 1998-11-18 | 1998-11-18 | 光ヘッド装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004139728A JP2004139728A (ja) | 2004-05-13 |
| JP2004139728A5 JP2004139728A5 (enrdf_load_stackoverflow) | 2005-07-07 |
| JP4059190B2 true JP4059190B2 (ja) | 2008-03-12 |
Family
ID=32463874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003386370A Expired - Fee Related JP4059190B2 (ja) | 2003-11-17 | 2003-11-17 | 光ヘッド装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4059190B2 (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4613651B2 (ja) * | 2005-03-16 | 2011-01-19 | 旭硝子株式会社 | 階段状回折素子および光ヘッド装置 |
| US7778138B2 (en) * | 2005-04-22 | 2010-08-17 | Konica Minolta Opto, Inc. | Objective optical element for optical pickup device, optical element for optical pickup device, objective optical element unit for optical pickup device and optical pickup device |
| WO2007020787A1 (ja) * | 2005-08-18 | 2007-02-22 | Nec Corporation | 光ヘッド装置及び光学式情報記録再生装置 |
| JP5378120B2 (ja) * | 2009-09-02 | 2013-12-25 | 株式会社日立メディアエレクトロニクス | 光ピックアップ装置及びそれを用いた光ディスク装置 |
-
2003
- 2003-11-17 JP JP2003386370A patent/JP4059190B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004139728A (ja) | 2004-05-13 |
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