Method and device for determining the eye's rotation center
US7794085B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 10, 2006 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Apr 21, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/113
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a device for determining the center of rotation of an eye of a person relative to a frame of reference associated with the person or with said person's eyeglasses, making it possible to determine the visual axis of the person along at least two non-parallel directions by viewing a target, and to define an optimum point of intersection of said axes as the center of rotation of the eye, at least two relative positions of said target and of the person's head being measured. In the invention, said target is constituted by a light source and is disposed at one end of a tubular support, with the other end being for disposing facing the person's eye, the support carrying a first position sensor, a second position sensor being for placing on the person's head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.