Ophthalmic lens package
US5467868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1993 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Dec 28, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic lens package for inspection, sterilization, and delivery of the lens having a substantial planar first surface with a concave bowl, the bowl having a radius of curvature larger than the radius of the lens placed inside the bowl allowing the lens to center and settle in the middle of the bowl. About the bowl is an annular sealing area, preferably a planar annulus raised above the first planar surface away from the bowl, circumferentially about the circular boundary of the first planar surface and the concave bowl. The package is hermetically sealed along the sealing area with a sealing sheet substantially parallel with the first planar surface and covering the concave bowl. The package is constructed of a non-nucleated polymer so that when water is placed in the bowl, the polymer surface is sufficiently wettable to substantially flatten the water meniscus in the center and thereby eliminate associated optical aberrations, permitting undistorted in-package inspection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.