Patent · US Expired

Ophthalmic lens

US6305800A · kind A · utility

12Cited by

3References

22Claims

0Family size

Assignee

Sola International Holdings Ltd. · AU

Inventors

Anthony Miller · Adelaide, AU
Saulius Raymond Varnas · Brighton, AU

Key dates

Filing date	Jun 16, 2000
Grant date	Oct 23, 2001
Priority date	—
Expiry date	Jun 16, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/22
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An ophthalmic lens element having a first surface and an atoroidal or generally aspheric second surface. The second surface is described by a symmetric polynomial whose coefficients have been chosen to minimize a merit function constructed of the sum of a particular optical aberration over substantially the entire surface thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.