WO2007084943A3 - Methods and apparatus for locating the eye in three dimensions - Google Patents
Methods and apparatus for locating the eye in three dimensions Download PDFInfo
- Publication number
- WO2007084943A3 WO2007084943A3 PCT/US2007/060689 US2007060689W WO2007084943A3 WO 2007084943 A3 WO2007084943 A3 WO 2007084943A3 US 2007060689 W US2007060689 W US 2007060689W WO 2007084943 A3 WO2007084943 A3 WO 2007084943A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- eye
- dimensions
- light
- lens
- locating
- Prior art date
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
- A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement
-
- 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
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
- A61B3/152—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for aligning
Abstract
In a method and apparatus for locating the position of an eye in three dimensions, an emitter projects light so that it illuminates the eye whose location is to be determined. A bright pupil reflection from the eye travels back and is focused by a lens so that it impinges upon a sensor. Using a beam splitter or other arrangement, the light is cast in such a way that the field of view of the lens is coincident with the light projected by the emitter. In light of a known relationship between the lens and sensor, a unique line is established along which the reflecting eye must lie. If two distinct lines are established, by the same or another camera, a unique location in three dimensions for the eye can be defined. Also, a single line and other known feature of the position of the eye can be combined.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76057906P | 2006-01-19 | 2006-01-19 | |
US60/760,579 | 2006-01-19 | ||
US81216306P | 2006-06-09 | 2006-06-09 | |
US60/812,163 | 2006-06-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007084943A2 WO2007084943A2 (en) | 2007-07-26 |
WO2007084943A3 true WO2007084943A3 (en) | 2007-12-13 |
Family
ID=38288386
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/060689 WO2007084943A2 (en) | 2006-01-19 | 2007-01-18 | Methods and apparatus for locating the eye in three dimensions |
PCT/US2007/070555 WO2007146714A2 (en) | 2006-01-19 | 2007-06-06 | Methods and apparatus for locating the eye in three demensions |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/070555 WO2007146714A2 (en) | 2006-01-19 | 2007-06-06 | Methods and apparatus for locating the eye in three demensions |
Country Status (1)
Country | Link |
---|---|
WO (2) | WO2007084943A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2451441B (en) * | 2007-07-30 | 2012-07-11 | Lein Applied Diagnostics Ltd | Optical alignment apparatus and method thereof |
FI124966B (en) * | 2011-09-06 | 2015-04-15 | Icare Finland Oy | Ophthalmic Apparatus and Eye Measurement Procedure |
US11252399B2 (en) | 2015-05-28 | 2022-02-15 | Microsoft Technology Licensing, Llc | Determining inter-pupillary distance |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3495897A (en) * | 1966-08-04 | 1970-02-17 | Temkine & Cie Lunetiers | Device for measuring the pupillary distance |
US5596377A (en) * | 1993-08-31 | 1997-01-21 | Nidek Co., Ltd. | Ophthalmic apparatus having three dimensional calculating means |
US6027216A (en) * | 1997-10-21 | 2000-02-22 | The Johns University School Of Medicine | Eye fixation monitor and tracker |
US20050024586A1 (en) * | 2001-02-09 | 2005-02-03 | Sensomotoric Instruments Gmbh | Multidimensional eye tracking and position measurement system for diagnosis and treatment of the eye |
-
2007
- 2007-01-18 WO PCT/US2007/060689 patent/WO2007084943A2/en active Application Filing
- 2007-06-06 WO PCT/US2007/070555 patent/WO2007146714A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3495897A (en) * | 1966-08-04 | 1970-02-17 | Temkine & Cie Lunetiers | Device for measuring the pupillary distance |
US5596377A (en) * | 1993-08-31 | 1997-01-21 | Nidek Co., Ltd. | Ophthalmic apparatus having three dimensional calculating means |
US6027216A (en) * | 1997-10-21 | 2000-02-22 | The Johns University School Of Medicine | Eye fixation monitor and tracker |
US20050024586A1 (en) * | 2001-02-09 | 2005-02-03 | Sensomotoric Instruments Gmbh | Multidimensional eye tracking and position measurement system for diagnosis and treatment of the eye |
Also Published As
Publication number | Publication date |
---|---|
WO2007146714A2 (en) | 2007-12-21 |
WO2007084943A2 (en) | 2007-07-26 |
WO2007146714A3 (en) | 2008-12-24 |
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