Progressive spectacle lens
US12001087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2023 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A progressive spectacle lens, a method for its production, and a related computer program are disclosed. The progressive spectacle lens has a progressive surface including a central viewing zone, a lower viewing zone, two peripheral vision zones extending bilaterally from a vertical meridian of the progressive surface, and an upper viewing zone. The central viewing zone has a surface power providing a first refracting power for distance vision and the lower viewing zone has a greater surface power than the central viewing zone providing a second refracting power corresponding to near vision and being connected to the central viewing zone by a first progressing power region. The progressive spectacle lens generates a retarding or arresting effect on myopia progression, especially in myopic juveniles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.