WO2013162471A3 - Portable optics adapter to digital camera for fundus imaging - Google Patents

Portable optics adapter to digital camera for fundus imaging Download PDF

Info

Publication number
WO2013162471A3
WO2013162471A3 PCT/SG2013/000162 SG2013000162W WO2013162471A3 WO 2013162471 A3 WO2013162471 A3 WO 2013162471A3 SG 2013000162 W SG2013000162 W SG 2013000162W WO 2013162471 A3 WO2013162471 A3 WO 2013162471A3
Authority
WO
WIPO (PCT)
Prior art keywords
camera
optical path
adapter
infrared
light source
Prior art date
Application number
PCT/SG2013/000162
Other languages
French (fr)
Other versions
WO2013162471A2 (en
Inventor
Swee Chuan Tjin
Rupesh AGRAWAL
Vu Long BUI
Charn Beng Stephen TEOH
Tock Han Lim
Kin Kee CHOW
Original Assignee
Nanyang Technological University
Tan Tock Seng Hospital Pte 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
Application filed by Nanyang Technological University, Tan Tock Seng Hospital Pte Ltd. filed Critical Nanyang Technological University
Priority to SG11201406239YA priority Critical patent/SG11201406239YA/en
Publication of WO2013162471A2 publication Critical patent/WO2013162471A2/en
Publication of WO2013162471A3 publication Critical patent/WO2013162471A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/1208—Multiple lens hand-held instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

An adapter for interfacing an independent off-the-shelf commercial camera that allows the camera to take a retinal fundus image of an eye. The adapter defines an optical path between the camera and an aperture directed at the fundus. The adapter contains at least one each of both an infrared as well as a visible light source. The infrared source(s) enable the camera to auto-focus without affecting the eye, and the visible light source(s) provide illumination when capturing an image. The light sources are arranged off the optical path but direct light towards the aperture along a line which converges to the optical path. The optical path includes an aspheric and an achromatic lens that reduce the two major aberrations: spherical and chromatic. A sharp image is obtained without using a third lens. The infrared light source(s) generate at least a portion with a wavelength range below 950nm.
PCT/SG2013/000162 2012-04-23 2013-04-23 Portable optics adapter to digital camera for fundus imaging WO2013162471A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SG11201406239YA SG11201406239YA (en) 2012-04-23 2013-04-23 Portable optics adapter to digital camera for fundus imaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261637001P 2012-04-23 2012-04-23
US61/637,001 2012-04-23

Publications (2)

Publication Number Publication Date
WO2013162471A2 WO2013162471A2 (en) 2013-10-31
WO2013162471A3 true WO2013162471A3 (en) 2014-11-27

Family

ID=49484004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2013/000162 WO2013162471A2 (en) 2012-04-23 2013-04-23 Portable optics adapter to digital camera for fundus imaging

Country Status (2)

Country Link
SG (1) SG11201406239YA (en)
WO (1) WO2013162471A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7433801B2 (en) 2019-08-01 2024-02-20 キヤノン株式会社 Imaging device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9655517B2 (en) * 2012-02-02 2017-05-23 Visunex Medical Systems Co. Ltd. Portable eye imaging apparatus
US20150021228A1 (en) 2012-02-02 2015-01-22 Visunex Medical Systems Co., Ltd. Eye imaging apparatus and systems
US9179840B2 (en) 2012-03-17 2015-11-10 Visunex Medical Systems Co. Ltd. Imaging and lighting optics of a contact eye camera
US9351639B2 (en) 2012-03-17 2016-05-31 Visunex Medical Systems Co. Ltd. Eye imaging apparatus with a wide field of view and related methods
US9430040B2 (en) * 2014-01-14 2016-08-30 Microsoft Technology Licensing, Llc Eye gaze detection with multiple light sources and sensors
US9986908B2 (en) 2014-06-23 2018-06-05 Visunex Medical Systems Co. Ltd. Mechanical features of an eye imaging apparatus
WO2016013023A2 (en) * 2014-07-19 2016-01-28 Biosense Technologies Private Ltd Method and system for haemoglobin measurement
GB2544946B (en) 2014-08-31 2021-03-10 Berestka John Systems and methods for analyzing the eye
US9848773B2 (en) 2015-01-26 2017-12-26 Visunex Medical Systems Co. Ltd. Disposable cap for an eye imaging apparatus and related methods
CN111820866B (en) * 2020-07-31 2023-07-18 嘉兴中润光学科技股份有限公司 Fundus illumination system
CN113347370A (en) * 2021-06-17 2021-09-03 维沃移动通信有限公司 Electronic device, photographing method of electronic device, and readable storage medium
US20230233078A1 (en) * 2022-01-21 2023-07-27 Welch Allyn, Inc. Vision Screening Device Including Color Imaging

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943116A (en) * 1997-04-01 1999-08-24 Johns Hopkins University System for imaging an ocular fundus semi-automatically at high resolution and wide field
US20040085514A1 (en) * 2002-11-01 2004-05-06 Fransen Stephen R. Automated generation of fundus images based on processing of acquired images
WO2011022803A1 (en) * 2009-08-31 2011-03-03 Masidah Corp. Handheld portable fundus imaging system and method
WO2011029064A1 (en) * 2009-09-04 2011-03-10 University Of Virginia Patent Foundation Hand-held portable fundus camera for screening photography

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943116A (en) * 1997-04-01 1999-08-24 Johns Hopkins University System for imaging an ocular fundus semi-automatically at high resolution and wide field
US20040085514A1 (en) * 2002-11-01 2004-05-06 Fransen Stephen R. Automated generation of fundus images based on processing of acquired images
WO2011022803A1 (en) * 2009-08-31 2011-03-03 Masidah Corp. Handheld portable fundus imaging system and method
WO2011029064A1 (en) * 2009-09-04 2011-03-10 University Of Virginia Patent Foundation Hand-held portable fundus camera for screening photography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7433801B2 (en) 2019-08-01 2024-02-20 キヤノン株式会社 Imaging device

Also Published As

Publication number Publication date
SG11201406239YA (en) 2014-11-27
WO2013162471A2 (en) 2013-10-31

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