WO2003025633A1 - Diffraction device - Google Patents

Diffraction device 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
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.)
Ceased
Application number
PCT/JP2002/009370
Other languages
English (en)
French (fr)
Inventor
Hiromasa Sato
Yoshiharu Ooi
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.)
AGC Inc
Original Assignee
Asahi Glass 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
Priority claimed from JP2001278063A external-priority patent/JP2003084114A/ja
Priority claimed from JP2002112162A external-priority patent/JP2003307606A/ja
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
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
Anticipated expiration legal-status Critical
Priority to US12/195,889 priority patent/US20080310024A1/en
Ceased legal-status Critical Current

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 Diffraction device Ceased WO2003025633A1 (en)

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 (en) 2003-03-27

Family

ID=26622149

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/009370 Ceased WO2003025633A1 (en) 2001-09-13 2002-09-12 Diffraction device

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
JP2022540131A (ja) * 2019-07-11 2022-09-14 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 (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003025633A1 (en) 2001-09-13 2003-03-27 Asahi Glass Company, Limited 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
WO2004097816A1 (ja) * 2003-04-25 2004-11-11 Asahi Glass Company, Limited 回折素子および光ヘッド装置
US20050018297A1 (en) * 2003-07-10 2005-01-27 Konica Minolta Opto, Inc. Optical component and optical pickup apparatus
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
CA2759296C (en) * 2009-04-20 2018-07-24 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
KR102821244B1 (ko) * 2017-03-21 2025-06-13 매직 립, 인코포레이티드 광 스캐닝 프로젝터와 함께 눈 움직임을 추적하기 위한 방법 및 시스템
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
JP7227403B2 (ja) * 2019-04-28 2023-02-21 レイア、インコーポレイテッド 回折バックライト製造方法
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
US20240219524A1 (en) * 2022-12-30 2024-07-04 Advanced Semiconductor Engineering, Inc. Optical module
WO2025101441A1 (en) * 2023-11-06 2025-05-15 Applied Materials Israel Ltd. Metrology using joint angle and wavelength scattering

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

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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
EP0953161B1 (en) * 1997-01-17 2004-11-17 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
WO2003025633A1 (en) 2001-09-13 2003-03-27 Asahi Glass Company, Limited 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
KR101162135B1 (ko) * 2003-03-13 2012-07-03 아사히 가라스 가부시키가이샤 회절 소자 및 광학 장치
WO2004097816A1 (ja) * 2003-04-25 2004-11-11 Asahi Glass Company, Limited 回折素子および光ヘッド装置
DE602004023641D1 (de) * 2003-11-27 2009-11-26 Asahi Glass Co Ltd Optisches element mit einem flüssigkristall mit optischer isotropie
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 (4)

* 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
JP2022540131A (ja) * 2019-07-11 2022-09-14 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
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
US20080310024A1 (en) 2008-12-18
US20040169929A1 (en) 2004-09-02
US7430076B2 (en) 2008-09-30
EP1437608A1 (en) 2004-07-14

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