Optic devices formed from melt processable thermoplastic materials having a high refractive index
Abstract
This invention relates generally to optic devices such as ophthalmic lenses, lens blanks, and lens preforms, made from a thermoplastic material of a specific formula and a process for forming the same.
Assignee
Innotech, Inc., Johnson & Johnson Vision Care
Virginia Tech Intellectual Properties, Inc.
Patent Number
6008299
Application Number
8912117
Primary/U.S. Class
351/159.74
Other/U.S. Class
525/255
525/191
525/196
525/200
525/212
CPC Class
C08G75/23
C08G65/4006
C08G65/4068
C08L71/00
G02B1/041
Patent Type
utility
Collections
- Virginia Tech Patents [545]