Ophthalmoscopes
US9039183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 19, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This disclosure is directed to systems and methods for determining a correction for distortion in eye representations of an ophthalmoscope. A digital model of an optical system including the ophthalmoscope and a model eye may be constructed. The digital model may be transmitted to a ray tracing system. A ray may be passed through the optical system onto a surface of the model eye. A measurement of the ray at the surface of the model eye, with distortion, may be calculated and an angular position of a horizontal scanning element and an angular position of a vertical scanning element can be determined. Using the horizontal scanning angle and vertical scanning angle, a measurement of the ray at the surface of the model eye, without distortion, may be calculated and compared to the measurement with distortion to determine a correction for distortion in eye representations of the ophthalmoscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.