Title:
累進焦点レンズ
Document Type and Number:
Japanese Patent JP4223290
Kind Code:
B2
Abstract:
The present provides progressive addition lens designs and lenses in which unwanted lens astigmatism is reduced as compared to conventional progressive addition lenses. The lenses of the invention containing at least one surface that is a composite of a progressive surface design and a regressive surface design.
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Inventors:
Menezes Edgar Buoy
Application Number:
JP2002582071A
Publication Date:
February 12, 2009
Filing Date:
March 14, 2002
Export Citation:
Assignee:
Essilor Lanternacional (Company General Doptic)
International Classes:
G02C7/06; G02C1/00; G02C7/02; G06F17/50
Domestic Patent References:
| JP2000249992A |
Attorney, Agent or Firm:
Masayuki Masabayashi