WO2003025633A1 - Dispositif de diffraction - Google Patents

Dispositif de diffraction Download PDF

Info

Publication number
WO2003025633A1
WO2003025633A1 PCT/JP2002/009370 JP0209370W WO03025633A1 WO 2003025633 A1 WO2003025633 A1 WO 2003025633A1 JP 0209370 W JP0209370 W JP 0209370W WO 03025633 A1 WO03025633 A1 WO 03025633A1
Authority
WO
WIPO (PCT)
Prior art keywords
diffraction
grating
uneven
transparent substrate
light
Prior art date
Application number
PCT/JP2002/009370
Other languages
English (en)
French (fr)
Inventor
Hiromasa Sato
Yoshiharu Ooi
Original Assignee
Asahi Glass Company, Limited
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
Priority claimed from JP2001278063A external-priority patent/JP2003084114A/ja
Priority claimed from JP2002112162A external-priority patent/JP2003307606A/ja
Application filed by Asahi Glass Company, Limited filed Critical Asahi Glass Company, Limited
Priority to EP02765516A priority Critical patent/EP1437608A4/en
Publication of WO2003025633A1 publication Critical patent/WO2003025633A1/ja
Priority to US10/798,556 priority patent/US7430076B2/en
Priority to US12/195,889 priority patent/US20080310024A1/en

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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4244—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in wavelength selecting devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G02B5/1871—Transmissive phase 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
    • G11B7/135—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
    • 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)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
PCT/JP2002/009370 2001-09-13 2002-09-12 Dispositif de diffraction WO2003025633A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02765516A EP1437608A4 (en) 2001-09-13 2002-09-12 DIFFRACTION DEVICE
US10/798,556 US7430076B2 (en) 2001-09-13 2004-03-12 Diffraction element
US12/195,889 US20080310024A1 (en) 2001-09-13 2008-08-21 Diffraction element

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001-278063 2001-09-13
JP2001278063A JP2003084114A (ja) 2001-09-13 2001-09-13 反射型回折素子
JP2002112162A JP2003307606A (ja) 2002-04-15 2002-04-15 回折素子
JP2002-112162 2002-04-15

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/798,556 Continuation US7430076B2 (en) 2001-09-13 2004-03-12 Diffraction element

Publications (1)

Publication Number Publication Date
WO2003025633A1 true WO2003025633A1 (fr) 2003-03-27

Family

ID=26622149

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/009370 WO2003025633A1 (fr) 2001-09-13 2002-09-12 Dispositif de diffraction

Country Status (3)

Country Link
US (2) US7430076B2 (ja)
EP (1) EP1437608A4 (ja)
WO (1) WO2003025633A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105445835A (zh) * 2006-10-31 2016-03-30 莫迪里斯控股有限责任公司 照明装置及照明系统
JP2018097464A (ja) * 2016-12-09 2018-06-21 大日本印刷株式会社 導光フィルム、偽造防止用構造体および偽造防止物品
JP7446404B2 (ja) 2019-07-11 2024-03-08 レイア、インコーポレイテッド 導光体内にマルチビーム要素を有するマルチビューバックライト、ディスプレイ、及び方法

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1437608A4 (en) 2001-09-13 2006-07-26 Asahi Glass Co Ltd DIFFRACTION DEVICE
US7418016B2 (en) * 2003-02-13 2008-08-26 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Method and apparatus for modifying the spread of a laser beam
KR20060002808A (ko) * 2003-04-25 2006-01-09 아사히 가라스 가부시키가이샤 회절 소자 및 광헤드 장치
CN100430754C (zh) * 2003-07-10 2008-11-05 柯尼卡美能达精密光学株式会社 光学组件和光学拾取装置
EP1780582A4 (en) * 2004-07-29 2009-07-08 Asahi Glass Co Ltd POLARIZED BENDING FILTER AND HISTORIZED POLARIZED BENDING FILTER
EP1691224A1 (en) * 2005-02-10 2006-08-16 Konica Minolta Opto, Inc. Diffractive grating member and optical communication module
JP2006268979A (ja) * 2005-03-24 2006-10-05 Nidec Sankyo Corp 回折素子および光ディスク装置
KR100860667B1 (ko) * 2006-11-07 2008-09-26 삼성전자주식회사 가시광 통신을 위한 휴대용 무선 단말기
US7715103B2 (en) * 2007-09-10 2010-05-11 Microvision, Inc. Buried numerical aperture expander having transparent properties
US7821900B2 (en) * 2008-05-15 2010-10-26 Northrop Grumman Systems Corporation Diffractive optical element and method of designing the same
US10642039B2 (en) * 2009-04-20 2020-05-05 Bae Systems Plc Surface relief grating in an optical waveguide having a reflecting surface and dielectric layer conforming to the surface
US8251563B2 (en) * 2009-05-29 2012-08-28 Sharp Kabushiki Kaisha Polarized diffractive backlight
US9366752B2 (en) 2011-09-23 2016-06-14 Apple Inc. Proximity sensor with asymmetric optical element
JP5494771B2 (ja) * 2011-09-30 2014-05-21 ダイキン工業株式会社 集光フィルム、太陽電池モジュール、及び、転写モールド
GB201117029D0 (en) * 2011-10-04 2011-11-16 Bae Systems Plc Optical waveguide and display device
US9263618B2 (en) * 2013-03-05 2016-02-16 Apple Inc. Proximity sensor module with light reflector
JP6188743B2 (ja) * 2014-06-19 2017-08-30 キヤノン株式会社 複数の光学機能面を有する光学素子、分光装置およびその製造方法
JP6413421B2 (ja) * 2014-07-17 2018-10-31 船井電機株式会社 光学系及び光学系を有する光学機器
US10670862B2 (en) 2015-07-02 2020-06-02 Microsoft Technology Licensing, Llc Diffractive optical elements with asymmetric profiles
WO2018194987A1 (en) 2017-04-18 2018-10-25 Magic Leap, Inc. Waveguides having reflective layers formed by reflective flowable materials
CN109521578B (zh) * 2017-09-19 2021-02-26 奥比中光科技集团股份有限公司 深度相机
FI129359B (en) * 2018-03-28 2021-12-31 Dispelix Oy Diffractive grating
TWI668502B (zh) * 2018-04-24 2019-08-11 微采視像科技股份有限公司 光偏折膜及應用其之顯示裝置
CN109298537B (zh) * 2018-11-20 2024-03-19 成都工业学院 基于背光源的3d显示装置
CA3136670C (en) * 2019-04-28 2024-04-09 Leia Inc. Method of fabricating diffractive backlight
JP7319106B2 (ja) * 2019-06-28 2023-08-01 株式会社ミツトヨ 格子部品およびその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05232321A (ja) * 1992-02-21 1993-09-10 Matsushita Electric Ind Co Ltd ホログラム及びこれを用いた光学装置
JPH05346502A (ja) * 1992-04-16 1993-12-27 Canon Inc 樹脂製光学部品の高反射ミラー
JPH06317705A (ja) * 1993-03-10 1994-11-15 Matsushita Electric Ind Co Ltd 回折素子及びそれを用いた光合分波装置
JPH07239407A (ja) * 1994-02-28 1995-09-12 Shimadzu Corp レプリカ回折格子
JP2001059905A (ja) * 1999-06-16 2001-03-06 Matsushita Electronics Industry Corp 回折型光学素子および当該回折型光学素子を用いた光ピックアップ

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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JPH07182687A (ja) * 1993-12-24 1995-07-21 Sharp Corp 光ピックアップ
JP3660415B2 (ja) * 1995-02-07 2005-06-15 富士通株式会社 光学記憶装置用光学デバイス
KR100209608B1 (ko) * 1995-09-15 1999-07-15 구자홍 광 출력검지 장치
US5907436A (en) * 1995-09-29 1999-05-25 The Regents Of The University Of California Multilayer dielectric diffraction gratings
JP3541575B2 (ja) * 1996-08-28 2004-07-14 旭硝子株式会社 光ヘッド装置及びそれに用いる複合異方性回折素子
US5914811A (en) * 1996-08-30 1999-06-22 University Of Houston Birefringent grating polarizing beam splitter
AU5913698A (en) * 1997-01-17 1998-08-07 Cymer, Inc. Reflective overcoat for replicated diffraction gratings
US6728034B1 (en) * 1999-06-16 2004-04-27 Matsushita Electric Industrial Co., Ltd. Diffractive optical element that polarizes light and an optical pickup using the same
DE19960056A1 (de) * 1999-12-13 2001-06-21 Thomson Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
EP1437608A4 (en) 2001-09-13 2006-07-26 Asahi Glass Co Ltd DIFFRACTION DEVICE
US7548359B2 (en) * 2002-11-13 2009-06-16 Asahi Glass Company, Limited Double-wavelength light source unit and optical head device having four diffraction gratings
JPWO2004081620A1 (ja) * 2003-03-13 2006-06-15 旭硝子株式会社 回折素子および光学装置
KR20060002808A (ko) * 2003-04-25 2006-01-09 아사히 가라스 가부시키가이샤 회절 소자 및 광헤드 장치
WO2005052674A1 (ja) * 2003-11-27 2005-06-09 Asahi Glass Company, Limited 光学的等方性を有する液晶を用いた光学素子
JP5055694B2 (ja) * 2003-12-26 2012-10-24 旭硝子株式会社 偏光性回折素子および光ヘッド装置
EP1780582A4 (en) * 2004-07-29 2009-07-08 Asahi Glass Co Ltd POLARIZED BENDING FILTER AND HISTORIZED POLARIZED BENDING FILTER

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05232321A (ja) * 1992-02-21 1993-09-10 Matsushita Electric Ind Co Ltd ホログラム及びこれを用いた光学装置
JPH05346502A (ja) * 1992-04-16 1993-12-27 Canon Inc 樹脂製光学部品の高反射ミラー
JPH06317705A (ja) * 1993-03-10 1994-11-15 Matsushita Electric Ind Co Ltd 回折素子及びそれを用いた光合分波装置
JPH07239407A (ja) * 1994-02-28 1995-09-12 Shimadzu Corp レプリカ回折格子
JP2001059905A (ja) * 1999-06-16 2001-03-06 Matsushita Electronics Industry Corp 回折型光学素子および当該回折型光学素子を用いた光ピックアップ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1437608A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105445835A (zh) * 2006-10-31 2016-03-30 莫迪里斯控股有限责任公司 照明装置及照明系统
JP2018097464A (ja) * 2016-12-09 2018-06-21 大日本印刷株式会社 導光フィルム、偽造防止用構造体および偽造防止物品
JP7446404B2 (ja) 2019-07-11 2024-03-08 レイア、インコーポレイテッド 導光体内にマルチビーム要素を有するマルチビューバックライト、ディスプレイ、及び方法

Also Published As

Publication number Publication date
EP1437608A4 (en) 2006-07-26
US20040169929A1 (en) 2004-09-02
US7430076B2 (en) 2008-09-30
US20080310024A1 (en) 2008-12-18
EP1437608A1 (en) 2004-07-14

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