Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Moriyasu Shirayanagi0
Date of Patent
March 11, 2008
0Patent Application Number
111653710
Date Filed
June 24, 2005
0Patent Primary Examiner
Patent abstract
A progressive power lens having a positive vertex power in a distance portion is provided. At least a back surface of the progressive power lens is configured as a progressive surface. The progressive power lens satisfies a condition:
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