Optical instrument alignment system
US9713420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Dec 21, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/154
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic apparatus for precisely positioning an optical instrument, such as a wavefront aberrometer, in three dimensions with respect to a patient's eye. The ophthalmic apparatus may include an optical instrument directed in a first direction toward a target area to receive light therefrom and a camera directed in a second direction toward the target area to receive light therefrom, the first and second directions being non-parallel. The camera may include imaging optics to form an optical image on a photodetector array using light reflected from the target area. The ophthalmic apparatus may also include a processor configured to correlate a position of the optical image on the photodetector array with the distance between the optical instrument and the target area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.