JP7271563B2 - 導波路素子 - Google Patents

導波路素子 Download PDF

Info

Publication number
JP7271563B2
JP7271563B2 JP2020544668A JP2020544668A JP7271563B2 JP 7271563 B2 JP7271563 B2 JP 7271563B2 JP 2020544668 A JP2020544668 A JP 2020544668A JP 2020544668 A JP2020544668 A JP 2020544668A JP 7271563 B2 JP7271563 B2 JP 7271563B2
Authority
JP
Japan
Prior art keywords
doe
waveguide
rays
path length
optical path
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.)
Active
Application number
JP2020544668A
Other languages
English (en)
Japanese (ja)
Other versions
JP2021516773A5 (https=
JPWO2019185976A5 (https=
JP2021516773A (ja
Inventor
ブロムステット、カシミール
バルティアイネン、イスモ
Original Assignee
ディスペリックス オサケ ユキチュア
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
Application filed by ディスペリックス オサケ ユキチュア filed Critical ディスペリックス オサケ ユキチュア
Publication of JP2021516773A publication Critical patent/JP2021516773A/ja
Publication of JP2021516773A5 publication Critical patent/JP2021516773A5/ja
Publication of JPWO2019185976A5 publication Critical patent/JPWO2019185976A5/ja
Application granted granted Critical
Publication of JP7271563B2 publication Critical patent/JP7271563B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B27/0103—Head-up displays characterised by optical features comprising holographic elements
    • 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
    • G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • 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
    • 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
    • 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
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/011—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
    • G02B2027/0125—Field-of-view increase by wavefront division
    • 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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G02B2027/0174—Head mounted characterised by optical features holographic
    • 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
    • G02B27/4272—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Integrated Circuits (AREA)
JP2020544668A 2018-03-28 2019-03-04 導波路素子 Active JP7271563B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20185296 2018-03-28
FI20185296A FI129387B (en) 2018-03-28 2018-03-28 Waveguide elements
PCT/FI2019/050172 WO2019185976A1 (en) 2018-03-28 2019-03-04 Waveguide element

Publications (4)

Publication Number Publication Date
JP2021516773A JP2021516773A (ja) 2021-07-08
JP2021516773A5 JP2021516773A5 (https=) 2022-02-25
JPWO2019185976A5 JPWO2019185976A5 (https=) 2022-02-25
JP7271563B2 true JP7271563B2 (ja) 2023-05-11

Family

ID=68062296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020544668A Active JP7271563B2 (ja) 2018-03-28 2019-03-04 導波路素子

Country Status (9)

Country Link
US (1) US20210109365A1 (https=)
EP (1) EP3724714B1 (https=)
JP (1) JP7271563B2 (https=)
KR (1) KR102736983B1 (https=)
CN (1) CN111742252B (https=)
CA (1) CA3095246A1 (https=)
FI (1) FI129387B (https=)
SG (1) SG11202008108SA (https=)
WO (1) WO2019185976A1 (https=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0718706D0 (en) 2007-09-25 2007-11-07 Creative Physics Ltd Method and apparatus for reducing laser speckle
US11726332B2 (en) 2009-04-27 2023-08-15 Digilens Inc. Diffractive projection apparatus
WO2012136970A1 (en) 2011-04-07 2012-10-11 Milan Momcilo Popovich Laser despeckler based on angular diversity
WO2016020630A2 (en) 2014-08-08 2016-02-11 Milan Momcilo Popovich Waveguide laser illuminator incorporating a despeckler
CN103562802B (zh) 2012-04-25 2016-08-17 罗克韦尔柯林斯公司 全息广角显示器
US9933684B2 (en) 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
US10241330B2 (en) 2014-09-19 2019-03-26 Digilens, Inc. Method and apparatus for generating input images for holographic waveguide displays
WO2016113534A1 (en) 2015-01-12 2016-07-21 Milan Momcilo Popovich Environmentally isolated waveguide display
US9632226B2 (en) 2015-02-12 2017-04-25 Digilens Inc. Waveguide grating device
CN113759555B (zh) 2015-10-05 2024-09-20 迪吉伦斯公司 波导显示器
CN108780224B (zh) 2016-03-24 2021-08-03 迪吉伦斯公司 用于提供偏振选择性全息波导装置的方法和设备
US11513350B2 (en) 2016-12-02 2022-11-29 Digilens Inc. Waveguide device with uniform output illumination
WO2018129398A1 (en) 2017-01-05 2018-07-12 Digilens, Inc. Wearable heads up displays
CN114721242B (zh) 2018-01-08 2025-08-15 迪吉伦斯公司 用于制造光学波导的方法
WO2019135837A1 (en) 2018-01-08 2019-07-11 Digilens, Inc. Systems and methods for manufacturing waveguide cells
CN111566571B (zh) 2018-01-08 2022-05-13 迪吉伦斯公司 波导单元格中全息光栅高吞吐量记录的系统和方法
WO2020149956A1 (en) 2019-01-14 2020-07-23 Digilens Inc. Holographic waveguide display with light control layer
US20200247017A1 (en) 2019-02-05 2020-08-06 Digilens Inc. Methods for Compensating for Optical Surface Nonuniformity
US20220283377A1 (en) 2019-02-15 2022-09-08 Digilens Inc. Wide Angle Waveguide Display
KR102866596B1 (ko) 2019-02-15 2025-09-29 디지렌즈 인코포레이티드. 일체형 격자를 이용하여 홀로그래픽 도파관 디스플레이를 제공하기 위한 방법 및 장치
WO2020186113A1 (en) 2019-03-12 2020-09-17 Digilens Inc. Holographic waveguide backlight and related methods of manufacturing
KR20220016990A (ko) 2019-06-07 2022-02-10 디지렌즈 인코포레이티드. 투과 및 반사 격자를 통합하는 도파관 및 관련 제조 방법
WO2021041949A1 (en) 2019-08-29 2021-03-04 Digilens Inc. Evacuating bragg gratings and methods of manufacturing
US12399326B2 (en) 2021-01-07 2025-08-26 Digilens Inc. Grating structures for color waveguides
KR20230153459A (ko) 2021-03-05 2023-11-06 디지렌즈 인코포레이티드. 진공 주기적 구조체 및 제조 방법
US12474585B1 (en) * 2022-09-21 2025-11-18 Apple Inc. Display devices having grating substrates with sub-wavelength patterns

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170102543A1 (en) 2015-10-07 2017-04-13 Tuomas Vallius Diffractive optical element with integrated in-coupling, exit pupil expansion, and out-coupling
US20170131546A1 (en) 2015-11-10 2017-05-11 Scott Woltman Waveguide gratings to improve intensity distributions
WO2017162999A1 (en) 2016-03-24 2017-09-28 Popovich Milan Momcilo Method and apparatus for providing a polarization selective holographic waveguide device
JP2017528739A (ja) 2014-08-03 2017-09-28 ウェーブ オプティックス リミテッド 射出瞳を拡大する回折光導波路装置
US20180052501A1 (en) 2016-08-22 2018-02-22 Magic Leap, Inc. Thermal dissipation for wearable device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841583A (en) * 1996-02-09 1998-11-24 Corning Incorporated Multi-path interference filter
JP3332365B2 (ja) * 1998-02-23 2002-10-07 ザイゴ コーポレイション 複数経路干渉測定を使用して空気の屈折率および光路長効果を測定するための装置および方法
US20100259804A1 (en) * 2007-12-03 2010-10-14 Seereal Technologies S.A. Illumination Unit Comprising an Optical Wave Guide and an Imaging Means
US7858921B2 (en) * 2008-05-05 2010-12-28 Aptina Imaging Corporation Guided-mode-resonance transmission color filters for color generation in CMOS image sensors
DE102009055737A1 (de) * 2009-11-25 2011-05-26 Friedrich-Schiller-Universität Jena Optische Vorrichtung zur Erzeugung einer störfähigen internen Totalreflexion und deren Verwendung
CN103562802B (zh) * 2012-04-25 2016-08-17 罗克韦尔柯林斯公司 全息广角显示器
DE102013219625B3 (de) * 2013-09-27 2015-01-22 Carl Zeiss Ag Brillenglas für eine auf den Kopf eines Benutzers aufsetzbare und ein Bild erzeugende Anzeigevorrichtung sowie Anzeigevorrichtung mit einem solchen Brillenglas
US9535253B2 (en) * 2015-02-09 2017-01-03 Microsoft Technology Licensing, Llc Display system
US10038840B2 (en) * 2015-07-30 2018-07-31 Microsoft Technology Licensing, Llc Diffractive optical element using crossed grating for pupil expansion
US10073278B2 (en) * 2015-08-27 2018-09-11 Microsoft Technology Licensing, Llc Diffractive optical element using polarization rotation grating for in-coupling
US9946072B2 (en) * 2015-10-29 2018-04-17 Microsoft Technology Licensing, Llc Diffractive optical element with uncoupled grating structures
US10234686B2 (en) * 2015-11-16 2019-03-19 Microsoft Technology Licensing, Llc Rainbow removal in near-eye display using polarization-sensitive grating
EP3205512B1 (en) * 2016-02-09 2018-06-13 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Optical security device
US10067347B2 (en) * 2016-04-13 2018-09-04 Microsoft Technology Licensing, Llc Waveguides with improved intensity distributions
US10095045B2 (en) * 2016-09-12 2018-10-09 Microsoft Technology Licensing, Llc Waveguide comprising a bragg polarization grating
FI129113B (en) 2017-12-22 2021-07-15 Dispelix Oy Waveguide display and display element with new lattice configuration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017528739A (ja) 2014-08-03 2017-09-28 ウェーブ オプティックス リミテッド 射出瞳を拡大する回折光導波路装置
US20170102543A1 (en) 2015-10-07 2017-04-13 Tuomas Vallius Diffractive optical element with integrated in-coupling, exit pupil expansion, and out-coupling
US20170131546A1 (en) 2015-11-10 2017-05-11 Scott Woltman Waveguide gratings to improve intensity distributions
WO2017162999A1 (en) 2016-03-24 2017-09-28 Popovich Milan Momcilo Method and apparatus for providing a polarization selective holographic waveguide device
US20180052501A1 (en) 2016-08-22 2018-02-22 Magic Leap, Inc. Thermal dissipation for wearable device

Also Published As

Publication number Publication date
CA3095246A1 (en) 2019-10-03
EP3724714C0 (en) 2025-05-07
WO2019185976A1 (en) 2019-10-03
KR102736983B1 (ko) 2024-12-02
FI20185296A1 (en) 2019-09-29
EP3724714A4 (en) 2021-09-08
CN111742252B (zh) 2022-09-02
SG11202008108SA (en) 2020-09-29
KR20200136372A (ko) 2020-12-07
FI129387B (en) 2022-01-31
CN111742252A (zh) 2020-10-02
JP2021516773A (ja) 2021-07-08
EP3724714B1 (en) 2025-05-07
EP3724714A1 (en) 2020-10-21
US20210109365A1 (en) 2021-04-15

Similar Documents

Publication Publication Date Title
JP7271563B2 (ja) 導波路素子
KR102857528B1 (ko) 신규 격자 배열체
KR102815999B1 (ko) 격자 미러를 갖춘 회절 디스플레이 소자
KR102651487B1 (ko) 다층 도파관 디스플레이 소자
US6678429B2 (en) Amplitude and phase control in distributed optical structures
JP2021517265A (ja) 射出瞳拡大器
US20200241301A1 (en) Resonant waveguide grating and applications thereof
CN112817148B (zh) 扩大出瞳区域的器件以及包括其的显示器
CN116068768B (zh) 衍射光波导以及具有其的显示设备
CN116601544B (zh) 光学装置、模块和设备
JP7750533B2 (ja) 射出瞳拡大器
JP7191107B2 (ja) 光導波路及び回折導波路ディスプレイ
KR20210059594A (ko) 사출동 확장기 및 이를 포함하는 디스플레이
US7418162B2 (en) Method and apparatus for inducing an index of refraction change on a substrate sensitive to electromagnetic radiation
JPH11509002A (ja) グレーズ光用回折マニピュレーション干渉計
KR20200136370A (ko) 반사기 표면을 구비한 도파관 디스플레이 소자
JP3484868B2 (ja) 光導波路型回折格子の作成方法および作成装置
Ivanov Near-field effects in fabrication of fiber Bragg gratings using phase masks
CN119882124A (zh) 衍射光波导以及具有其的ar显示设备
JP2007263711A (ja) プレナー回折格子を含む合波干渉型光学装置および光エンコーダ
Iazikov et al. Ultra-small footprint silica-on-silicon WDM based on Holographic Bragg Reflectors

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220216

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220216

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20221228

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230120

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230411

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230425

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230426

R150 Certificate of patent or registration of utility model

Ref document number: 7271563

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250