Method and apparatus for calibrating and certifying accuracy of a wavefront sensing device
US6739721B2 · kind B2 · utility
34Cited by
7References
46Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Apr 24, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/1015
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration component for use in calibrating and certifying the accuracy of an ophthalmic wavefront sensor comprises a monolithic, plano-convex refractive optic having known amounts of one or more selected aberrations induced by the spherical, axisymmetric aspherical, or non-axisyrmmetric aspherical convex surface. An alignment tool is described, along with a procedure for calibrating an aberrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.