NZ724321A - Handling glare in eye tracking - Google Patents

Handling glare in eye tracking

Info

Publication number
NZ724321A
NZ724321A NZ724321A NZ72432115A NZ724321A NZ 724321 A NZ724321 A NZ 724321A NZ 724321 A NZ724321 A NZ 724321A NZ 72432115 A NZ72432115 A NZ 72432115A NZ 724321 A NZ724321 A NZ 724321A
Authority
NZ
New Zealand
Prior art keywords
eye tracking
eye
light sources
light
image
Prior art date
Application number
NZ724321A
Other languages
English (en)
Inventor
Mudit Agrawal
Vaibhav Thukral
Ibrahim Eden
David Nister
Shivkumar Swaminathan
Original Assignee
Microsoft Technology Licensing Llc
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 Microsoft Technology Licensing Llc filed Critical Microsoft Technology Licensing Llc
Publication of NZ724321A publication Critical patent/NZ724321A/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/113Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/22Matching criteria, e.g. proximity measures
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/002Specific input/output arrangements not covered by G06F3/01 - G06F3/16
    • G06F3/005Input arrangements through a video camera
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013Eye tracking input arrangements
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/40Extraction of image or video features
    • G06V10/42Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/40Extraction of image or video features
    • G06V10/60Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18Eye characteristics, e.g. of the iris
    • G06V40/19Sensors therefor
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18Eye characteristics, e.g. of the iris
    • G06V40/193Preprocessing; Feature extraction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/11Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/20Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/30Transforming light or analogous information into electric information
    • H04N5/33Transforming infrared radiation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Data Mining & Analysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Software Systems (AREA)
  • Evolutionary Biology (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Evolutionary Computation (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Artificial Intelligence (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Image Analysis (AREA)
  • Eye Examination Apparatus (AREA)
  • User Interface Of Digital Computer (AREA)
  • Studio Devices (AREA)
  • Image Input (AREA)
  • Position Input By Displaying (AREA)
NZ724321A 2014-04-29 2015-04-23 Handling glare in eye tracking NZ724321A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/264,952 US9454699B2 (en) 2014-04-29 2014-04-29 Handling glare in eye tracking
PCT/US2015/027185 WO2015167906A1 (en) 2014-04-29 2015-04-23 Handling glare in eye tracking

Publications (1)

Publication Number Publication Date
NZ724321A true NZ724321A (en) 2020-03-27

Family

ID=53059471

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ724321A NZ724321A (en) 2014-04-29 2015-04-23 Handling glare in eye tracking

Country Status (18)

Country Link
US (2) US9454699B2 (enExample)
EP (1) EP3137973B1 (enExample)
JP (2) JP6592000B2 (enExample)
KR (1) KR102358936B1 (enExample)
CN (2) CN106462236B (enExample)
AU (1) AU2015253554B2 (enExample)
BR (1) BR112016024889B1 (enExample)
CA (1) CA2943426C (enExample)
CL (1) CL2016002668A1 (enExample)
IL (1) IL247738B (enExample)
MX (1) MX366780B (enExample)
MY (1) MY184112A (enExample)
NZ (1) NZ724321A (enExample)
PH (1) PH12016501886B1 (enExample)
RU (1) RU2678478C2 (enExample)
SG (1) SG11201608289YA (enExample)
TW (1) TW201541284A (enExample)
WO (1) WO2015167906A1 (enExample)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9454699B2 (en) * 2014-04-29 2016-09-27 Microsoft Technology Licensing, Llc Handling glare in eye tracking
US9946339B2 (en) * 2014-10-08 2018-04-17 Microsoft Technology Licensing, Llc Gaze tracking through eyewear
US10444972B2 (en) 2015-11-28 2019-10-15 International Business Machines Corporation Assisting a user with efficient navigation between a selection of entries with elements of interest to the user within a stream of entries
US10878237B2 (en) * 2016-06-29 2020-12-29 Seeing Machines Limited Systems and methods for performing eye gaze tracking
CN110023946A (zh) * 2016-07-05 2019-07-16 吴业成 在现场图像捕捉期间的欺骗攻击检测
US20180081434A1 (en) * 2016-09-22 2018-03-22 Apple Inc. Eye and Head Tracking
US10120442B2 (en) * 2016-12-21 2018-11-06 Oculus Vr, Llc Eye tracking using a light field camera on a head-mounted display
CN106874895B (zh) 2017-03-31 2019-02-05 北京七鑫易维信息技术有限公司 一种视线追踪装置及头戴式显示设备
US10657401B2 (en) * 2017-06-06 2020-05-19 Microsoft Technology Licensing, Llc Biometric object spoof detection based on image intensity variations
WO2019014861A1 (en) * 2017-07-18 2019-01-24 Hangzhou Taruo Information Technology Co., Ltd. INTELLIGENT FOLLOWING OF OBJECTS
US10474231B2 (en) * 2017-08-16 2019-11-12 Industrial Technology Research Institute Eye tracking apparatus and method thereof
US11567318B1 (en) * 2017-09-25 2023-01-31 Meta Platforms Technologies, Llc Determining features of a user's eye from depth mapping of the user's eye via indirect time of flight
KR102410834B1 (ko) 2017-10-27 2022-06-20 삼성전자주식회사 반사 영역을 제거하는 방법, 사용자의 눈을 추적하는 방법 및 그 장치
WO2019084595A1 (en) * 2017-10-31 2019-05-09 Seeing Machines Limited System and method for improving signal to noise ratio in object tracking under poor light conditions
US20190129174A1 (en) * 2017-10-31 2019-05-02 Google Llc Multi-perspective eye-tracking for vr/ar systems
KR102476757B1 (ko) 2017-12-21 2022-12-09 삼성전자주식회사 반사를 검출하는 장치 및 방법
TWI647472B (zh) * 2018-01-22 2019-01-11 國立臺灣大學 雙模式視線追蹤方法與系統
CN108510542B (zh) * 2018-02-12 2020-09-11 北京七鑫易维信息技术有限公司 匹配光源与光斑的方法和装置
US10863812B2 (en) * 2018-07-18 2020-12-15 L'oreal Makeup compact with eye tracking for guidance of makeup application
EP3829826B1 (en) 2018-08-01 2024-02-21 Intuitive Surgical Operations, Inc. Systems and methods for controlling a robotic manipulator or associated tool
EP3844558B1 (en) 2018-08-29 2026-02-11 Intuitive Surgical Operations, Inc. Dynamic illumination for eye-tracking
JP7453966B2 (ja) * 2018-09-19 2024-03-21 アヴェドロ・インコーポレーテッド 眼の治療中の眼球追跡のためのシステム及び方法
US11455716B2 (en) * 2018-11-13 2022-09-27 Rivian Ip Holdings, Llc Image analysis of applied adhesive with fluorescence enhancement
DE102018010099B4 (de) * 2018-12-21 2021-12-02 Diehl Aerospace Gmbh Vermeiden der Blendung von Personen durch eine Lichtquelle
SE543240C2 (en) * 2018-12-21 2020-10-27 Tobii Ab Classification of glints using an eye tracking system
US10877268B2 (en) * 2019-04-16 2020-12-29 Facebook Technologies, Llc Active control of in-field light sources of a head mounted display
US10948729B2 (en) 2019-04-16 2021-03-16 Facebook Technologies, Llc Keep-out zone for in-field light sources of a head mounted display
US11516374B2 (en) 2019-06-05 2022-11-29 Synaptics Incorporated Under-display image sensor
IT201900011403A1 (it) * 2019-07-10 2021-01-10 Ambarella Int Lp Detecting illegal use of phone to prevent the driver from getting a fine
US11327318B2 (en) * 2019-08-13 2022-05-10 Htc Corporation Head-mounted display
US11153513B2 (en) 2019-08-19 2021-10-19 Synaptics Incorporated Light source for camera
CN112578556B (zh) * 2019-09-27 2023-02-21 托比股份公司 用于减少来自光学装置的不合需的反射的眼睛跟踪系统
US11076080B2 (en) 2019-12-05 2021-07-27 Synaptics Incorporated Under-display image sensor for eye tracking
WO2021125992A1 (ru) * 2019-12-16 2021-06-24 федеральное государственное автономное образовательное учреждение высшего образования "Московский физико-технический институт (национальный исследовательский университет)" Устройство определения направления взгляда
WO2021125993A1 (ru) * 2019-12-16 2021-06-24 Федеральное Государственное Автономное Образовательное Учреждение Высшего Образования "Московский Физико-Технический Инстиут (Национальный Исследовательский Университет)" Способ определения направления взгляда
US11340701B2 (en) * 2019-12-16 2022-05-24 Nvidia Corporation Gaze determination using glare as input
CN113515975B (zh) * 2020-04-10 2022-11-08 北京眼神科技有限公司 人脸和虹膜图像采集方法、装置、可读存储介质及设备
CN111772575A (zh) * 2020-06-02 2020-10-16 岭南师范学院 基于led光学无损特殊儿童检测仪及检测方法
CN116569221A (zh) * 2020-09-25 2023-08-08 苹果公司 用于成像系统的灵活照明
CN112198965B (zh) * 2020-12-04 2021-03-09 宁波圻亿科技有限公司 一种ar眼镜护目自动控制方法及装置
JP6956985B1 (ja) * 2020-12-22 2021-11-02 株式会社スワローインキュベート 目検出方法、目検出装置及び目検出プログラム
US11972042B2 (en) * 2021-06-15 2024-04-30 Microsoft Technology Licensing, Llc Variable intensity distributions for gaze detection assembly
JP2023041097A (ja) * 2021-09-13 2023-03-24 矢崎総業株式会社 検出システム
CN116301301A (zh) * 2021-12-20 2023-06-23 华为技术有限公司 眼动追踪装置和眼动追踪方法
GB2618078A (en) * 2022-04-25 2023-11-01 Continental Automotive Tech Gmbh An image processing method for removal of glare spots and system for the same

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6714665B1 (en) 1994-09-02 2004-03-30 Sarnoff Corporation Fully automated iris recognition system utilizing wide and narrow fields of view
US6152563A (en) * 1998-02-20 2000-11-28 Hutchinson; Thomas E. Eye gaze direction tracker
JP4250506B2 (ja) * 2003-10-31 2009-04-08 キヤノン株式会社 画像処理方法、画像処理装置、画像処理プログラムおよび撮像システム
US7777778B2 (en) 2004-10-27 2010-08-17 Delphi Technologies, Inc. Illumination and imaging system and method
JP2006318374A (ja) * 2005-05-16 2006-11-24 Matsushita Electric Ind Co Ltd 眼鏡判別装置および認証装置ならびに眼鏡判別方法
WO2007062478A1 (en) * 2005-11-30 2007-06-07 Seeing Machines Pty Ltd Visual tracking of eye glasses in visual head and eye tracking systems
US7630002B2 (en) 2007-01-05 2009-12-08 Microsoft Corporation Specular reflection reduction using multiple cameras
EP1983884B1 (en) * 2006-01-26 2016-10-26 Nokia Technologies Oy Eye tracker device
CN101008982A (zh) * 2006-01-27 2007-08-01 侯雨石 消除眼镜干扰的虹膜采集方法和装置
EP1987475A4 (en) 2006-02-14 2009-04-22 Fotonation Vision Ltd AUTOMATIC DETECTION AND CORRECTION OF RED EYE FLASH DEFECTS
CN101499127B (zh) * 2008-02-03 2012-07-18 上海银晨智能识别科技有限公司 防止眼镜镜片反光干扰而导致无法识别人脸的方法
US20100079508A1 (en) 2008-09-30 2010-04-01 Andrew Hodge Electronic devices with gaze detection capabilities
US20120105486A1 (en) 2009-04-09 2012-05-03 Dynavox Systems Llc Calibration free, motion tolerent eye-gaze direction detector with contextually aware computer interaction and communication methods
US8324602B2 (en) 2009-04-14 2012-12-04 Intersil Americas Inc. Optical sensors that reduce specular reflections
CN101545588A (zh) * 2009-04-30 2009-09-30 清华大学 一种防止眼镜反光的机器视觉照明系统
US8333475B2 (en) * 2009-11-12 2012-12-18 Panasonic Corporation Electro-oculography measuring device, ophthalmological diagnosis device, eye-gaze tracking device, wearable camera, head-mounted display, electronic eyeglasses, electro-oculography measuring method, and recording medium
EP2339534A1 (en) 2009-11-18 2011-06-29 Panasonic Corporation Specular reflection compensation
RU93553U1 (ru) * 2009-11-19 2010-04-27 Общество с ограниченной ответственностью "Системы позиционирования - оптические технологии" Компьютерный манипулятор, использующий углы поворота глаз и направление взгляда человека для позиционирования курсора на экране компьютера
US20110170060A1 (en) 2010-01-08 2011-07-14 Gordon Gary B Gaze Tracking Using Polarized Light
WO2011153112A2 (en) 2010-05-29 2011-12-08 Wenyu Jiang Systems, methods and apparatus for making and using eyeglasses with adaptive lens driven by gaze distance and low power gaze tracking
WO2012047221A1 (en) 2010-10-07 2012-04-12 Sony Computer Entertainment Inc. 3-d glasses with camera based head tracking
US8730356B2 (en) 2011-03-07 2014-05-20 Sony Corporation System and method for automatic flash removal from images
WO2012177542A1 (en) 2011-06-18 2012-12-27 Identix Incorporated Systems and methods for detecting a specular reflection pattern for biometric analysis
US8929589B2 (en) 2011-11-07 2015-01-06 Eyefluence, Inc. Systems and methods for high-resolution gaze tracking
US8942419B1 (en) * 2012-01-06 2015-01-27 Google Inc. Position estimation using predetermined patterns of light sources
KR20130121303A (ko) * 2012-04-27 2013-11-06 한국전자통신연구원 원거리 시선 추적 시스템 및 방법
US9192305B2 (en) * 2012-09-28 2015-11-24 Align Technology, Inc. Estimating a surface texture of a tooth
US9829971B2 (en) * 2013-01-21 2017-11-28 Facebook, Inc. Systems and methods of eye tracking control
US20140375541A1 (en) * 2013-06-25 2014-12-25 David Nister Eye tracking via depth camera
EP3065623B1 (en) * 2013-11-09 2020-04-22 Shenzhen Goodix Technology Co., Ltd. Optical eye tracking
US9454699B2 (en) * 2014-04-29 2016-09-27 Microsoft Technology Licensing, Llc Handling glare in eye tracking

Also Published As

Publication number Publication date
CN110266916A (zh) 2019-09-20
TW201541284A (zh) 2015-11-01
RU2016142286A (ru) 2018-04-27
BR112016024889A2 (pt) 2017-08-15
CA2943426A1 (en) 2015-11-05
MX366780B (es) 2019-07-24
US20150310253A1 (en) 2015-10-29
US20160358009A1 (en) 2016-12-08
JP6592000B2 (ja) 2019-10-16
MY184112A (en) 2021-03-18
CN106462236A (zh) 2017-02-22
SG11201608289YA (en) 2016-11-29
RU2678478C2 (ru) 2019-01-29
PH12016501886A1 (en) 2016-12-19
US9454699B2 (en) 2016-09-27
KR20160146858A (ko) 2016-12-21
CN110266916B (zh) 2021-09-21
MX2016014094A (es) 2017-02-09
BR112016024889B1 (pt) 2022-09-27
IL247738A0 (en) 2016-11-30
WO2015167906A1 (en) 2015-11-05
JP2017521738A (ja) 2017-08-03
PH12016501886B1 (en) 2016-12-19
IL247738B (en) 2019-06-30
CA2943426C (en) 2021-11-09
AU2015253554B2 (en) 2019-12-19
KR102358936B1 (ko) 2022-02-04
US9916502B2 (en) 2018-03-13
JP6845295B2 (ja) 2021-03-17
CL2016002668A1 (es) 2017-04-21
AU2015253554A1 (en) 2016-10-20
CN106462236B (zh) 2019-06-04
EP3137973A1 (en) 2017-03-08
JP2020013601A (ja) 2020-01-23
EP3137973B1 (en) 2020-03-25
RU2016142286A3 (enExample) 2018-11-19
BR112016024889A8 (pt) 2021-06-08

Similar Documents

Publication Publication Date Title
NZ724321A (en) Handling glare in eye tracking
PH12019501819A1 (en) Viewing optic with an integrated display system
IL284269A (en) Identifying defects in optical detector systems based on extent of stray light
EP4371484A3 (en) Eye imaging with an off-axis imager
IL260969B (en) An eye follows a retinal image through a light-guided optical element
EP3479296A4 (en) SYSTEM, DEVICE AND METHOD FOR VIRTUAL DRESSING USING IMAGE PROCESSING, MACHINE LEARNING AND COMPUTER VISION
MX2016006156A (es) Base de soldadura para un sistema de soldadura.
FR3016973B1 (fr) Dispositif de traitement d'un rayonnement lumineux/optique, procede et systeme de conception d'un tel dispositif
CL2016001896A1 (es) Ensamblaje de imagen optica y sistema con corrección de distorsión optica
IN2014CN00418A (enExample)
EP3335067A4 (en) Short focus lens optical system and imaging device including the same
EP3001236A3 (en) Apparatus and method for suppressing double images on a combiner head-up display
FR3021393B1 (fr) Lampe pour vehicule
EP4542512A3 (en) Method of determining one or more optical parameters of a lens
EP4372682A3 (en) Head mounted eye tracking device and method for providing drift free eye tracking through a lens system
EP2995982A4 (en) OBJECTIVE TUBE, CAMERA SYSTEM AND IMAGING DEVICE
HK1212475A1 (en) Projection system with safety detection
EP3433655A4 (en) OPTICAL ARRANGEMENTS WITH FRESNELLINE ELEMENTS
MX370882B (es) Sistemas y métodos para determinar un ángulo de reposo de un lente asimétrico.
EP3674793A4 (en) LENS DRIVE DEVICE, CAMERA MODULE THEREFORE, AND OPTICAL DEVICE
JP2015130614A5 (enExample)
EP3490242A4 (en) LENS DRIVE DEVICE AND CAMERA MODULE AND OPTICAL DEVICE THEREFOR
MX2017014704A (es) Vision del vehiculo.
EP3636989A4 (en) OPTICAL SYSTEM OF A STAGE LIGHT WITH LIGHT BEAM AND PATTERN EFFECTS AND LIGHT PROJECTION DEVICE
EP3391103A4 (en) DYNAMIC DRAWING FRESNEL LENS FOR REDUCED OPTICAL ARTIFACTS

Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 23 APR 2022 BY CPA GLOBAL

Effective date: 20210312

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 23 APR 2023 BY CPA GLOBAL

Effective date: 20220310

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 23 APR 2024 BY CPA GLOBAL

Effective date: 20230309

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 23 APR 2025 BY ANAQUA SERVICES

Effective date: 20240320

LAPS Patent lapsed