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1. WO2013008129 - SYSTEM AND METHOD FOR REMOTE MEASUREMENT OF OPTICAL FOCUS

Publication Number WO/2013/008129
Publication Date 17.01.2013
International Application No. PCT/IB2012/053369
International Filing Date 03.07.2012
Chapter 2 Demand Filed 29.01.2013
IPC
A61B 3/09 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
09for testing accommodation
A61B 3/103 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
103for determining refraction, e.g. refractometers, skiascopes
G02B 27/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
A61B 3/113 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
113for determining or recording eye movement
G06F 3/01 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
CPC
A61B 3/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
A61B 3/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
14Arrangements specially adapted for eye photography
G06F 3/013
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
011Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
013Eye tracking input arrangements
H04N 7/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
18Closed circuit television systems, i.e. systems in which the signal is not broadcast
Applicants
  • KONINKLIJKE PHILIPS N.V. [NL]/[NL] (AllExceptUS)
  • DE BRUIJN, Frederik Jan [NL]/[NL] (UsOnly)
  • VLUTTERS, Ruud [NL]/[NL] (UsOnly)
  • SCHMEITZ, Harold Agnes Wilhelmus [NL]/[NL] (UsOnly)
  • GRITTI, Tommaso [IT]/[NL] (UsOnly)
Inventors
  • DE BRUIJN, Frederik Jan
  • VLUTTERS, Ruud
  • SCHMEITZ, Harold Agnes Wilhelmus
  • GRITTI, Tommaso
Agents
  • COOPS, Peter
  • STEENBEEK, Leonardus, Johannes
Priority Data
61/507,67614.07.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR REMOTE MEASUREMENT OF OPTICAL FOCUS
(FR) SYSTÈME ET PROCÉDÉ DE MESURE À DISTANCE DE LA FOCALISATION OPTIQUE
Abstract
(EN)
A system and method that measures an optical focus of a distant optical imaging system (EYE), in particular the ocular accommodation of a distant human subject. A luminous pattern of light (P1, A1) is projected by a projector (P) in focus (A2) at a known focal plane (FPL1) in front of the distant optical imaging system (EYE), and an image of the reflection of the pattern (A3) on a sensor surface of the distant optical imaging system (EYE), for instance the retina of an eye, is recorded by a camera (CAM) having an optical axis (AXCAM) coinciding at least partly with or situated close to the optical axis (AXP) of the projection device (P). The sharpness of the luminous pattern (A3) reflected from the sensor surface (retina) is determined.
(FR)
La présente invention concerne un système et un procédé qui mesurent la focalisation optique d'un système d'imagerie optique distant (ŒIL), en particulier l'accommodation oculaire d'un sujet humain distant. Un motif lumineux de lumière (P1, A1) est projeté par un projecteur (P) dans le foyer (A2) à un plan focal connu (FPL1) devant le système d'imagerie optique distant (ŒIL), et une image du reflet du motif (A3) sur une surface de capteur du système d'imagerie optique distant (ŒIL), par exemple la rétine d'un œil, est enregistrée par l'appareil photo (CAM) ayant un axe optique (AXCAM) qui coïncide au moins partiellement avec l'axe optique (AXP) du dispositif de projection (P) ou se trouve à proximité dudit axe optique (AXP) du dispositif de projection (P). La netteté du motif lumineux (A3) réfléchi de la surface de capteur (rétine) est déterminée.
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