FR2798200B1 - Organe de fractionnement optique de rayons pour la separation par polarisation de lumiere monochromatique - Google Patents
Organe de fractionnement optique de rayons pour la separation par polarisation de lumiere monochromatiqueInfo
- Publication number
- FR2798200B1 FR2798200B1 FR0011295A FR0011295A FR2798200B1 FR 2798200 B1 FR2798200 B1 FR 2798200B1 FR 0011295 A FR0011295 A FR 0011295A FR 0011295 A FR0011295 A FR 0011295A FR 2798200 B1 FR2798200 B1 FR 2798200B1
- Authority
- FR
- France
- Prior art keywords
- monochromatic light
- polarization separation
- splitting member
- optical ray
- ray
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
- G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1395—Beam splitters or combiners
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Polarising Elements (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19942420A DE19942420A1 (de) | 1999-09-06 | 1999-09-06 | Optischer Strahlenteiler zur Polarisationstrennung von monochromatischem Licht |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2798200A1 FR2798200A1 (fr) | 2001-03-09 |
FR2798200B1 true FR2798200B1 (fr) | 2005-11-18 |
Family
ID=7920934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0011295A Expired - Fee Related FR2798200B1 (fr) | 1999-09-06 | 2000-09-05 | Organe de fractionnement optique de rayons pour la separation par polarisation de lumiere monochromatique |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2001116915A (fr) |
DE (1) | DE19942420A1 (fr) |
FR (1) | FR2798200B1 (fr) |
NL (1) | NL1016064C2 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115629485B (zh) * | 2022-12-07 | 2023-05-12 | 合肥的卢深视科技有限公司 | 散斑投射器和结构光相机 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2644829B2 (ja) * | 1988-06-24 | 1997-08-25 | 株式会社リコー | 光情報記録再生装置 |
JP2749107B2 (ja) * | 1989-03-20 | 1998-05-13 | 株式会社日立製作所 | 光ヘッド |
JP3131994B2 (ja) * | 1990-11-07 | 2001-02-05 | パイオニア株式会社 | 記録情報読取装置 |
-
1999
- 1999-09-06 DE DE19942420A patent/DE19942420A1/de not_active Withdrawn
-
2000
- 2000-08-28 JP JP2000256761A patent/JP2001116915A/ja not_active Withdrawn
- 2000-08-31 NL NL1016064A patent/NL1016064C2/nl not_active IP Right Cessation
- 2000-09-05 FR FR0011295A patent/FR2798200B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NL1016064C2 (nl) | 2005-04-20 |
FR2798200A1 (fr) | 2001-03-09 |
NL1016064A1 (nl) | 2001-03-08 |
JP2001116915A (ja) | 2001-04-27 |
DE19942420A1 (de) | 2001-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20100531 |