Corrective eyeglasses and method for subjective refraction by a wearer of said eyeglasses
US10278573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2015 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Apr 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/003
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to vision compensating spectacles comprising means of support (130, 140, 152) on a wearer's face and at least one optical subassembly (110, 120) mounted on the support means (130, 140, 152) opposite at least one of the wearer's eyes.The optical subassembly (110, 120) comprises three optical elements mounted on the support means in series along an optical axis: a first optical element of cylindrical power for a direction of gaze of the wearer along the optical axis, a second optical element of cylindrical power for the said direction of gaze and a third optical element of variable spherical power for the said direction of gaze.The first optical element and the second optical element are adjustable in rotation about the optical axis independently of one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.