Title:
高屈折率の溶融処理可能な熱可塑性物質から製造する光学器具
Document Type and Number:
Japanese Patent JP4084925
Kind Code:
B2
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.
Inventors:
McGrath James Yi
Secaripurum vencateshwaran N
Secaripurum vencateshwaran N
Application Number:
JP2000509749A
Publication Date:
April 30, 2008
Filing Date:
July 21, 1998
Export Citation:
Assignee:
Essilor Lanternacional (Company General Doptic)
Virginia Tech Intellectual Properties, Inc.
Virginia Tech Intellectual Properties, Inc.
International Classes:
C08G79/04; C08F4/00; G02C7/02; C08G65/40; C08G75/23; C08J5/00; G02B1/04
Domestic Patent References:
| JP1254736A | ||||
| JP61287924A | ||||
| JP58134121A | ||||
| JP2001518202A |
Attorney, Agent or Firm:
Masayuki Masabayashi