Method and device for determining at least one customized adjustment parameter of a lens carried by a spectacles frame facing the eye of a wearer
US9529212B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2012 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Aug 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for evaluating at least one individualized fitting parameter for a lens mounted in a spectacle frame. The method includes the following steps: (a) evaluating a postural parameter of the wearer of the spectacle frame in a vision posture, the postural parameter being selected from a plurality of preset postural parameters; (b) evaluating a second pantoscopic angle formed between, on the one hand, the projection of the temple of the frame onto the sagittal plane of the wearer, and on the other hand, the trace, on the same plane, of the front side of the frame; and (c) evaluating the first pantoscopic angle as a function of, on the one hand, the second pantoscopic angle evaluated in step (b), and on the other hand, the postural parameter of the wearer evaluated in step (a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.