US Patent 8425034 Lens element with improved prismatic power
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Patent abstract
A lens element for progressive spectacles. The lens element has at least one near viewing zone and a distance viewing zone which have different focusing powers. Further, the lens element has a predetermined prismatic power. Furthermore, a vertical component of the predetermined prismatic power is realized at a first point of the lens element, and a horizontal component of the predetermined prismatic power is realized at a second point of the lens element. The present invention also relates to a method for producing a lens element.
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Patent Inventor Names
Helmut Wietschorke0
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US Patent 08425034 Lens element with improved prismatic power US Patent 8425034 Lens element with improved prismatic power
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Patent Number
084250340
Patent Number
84250340
Edits on 26 Apr, 2023
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Is a
Patent Jurisdiction
Patent Number
084250340
Date of Patent
April 23, 2013
0Patent Application Number
130222450
Date Filed
February 7, 2011
0Patent Primary Examiner
Edits on 16 Dec, 2021
Golden AI
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US Patent 08425034 Lens element with improved prismatic power
Infobox
Is a
Patent jurisdiction
Patent number
08425034
Date of patent
April 23, 2013
Patent application number
13022245
Date Filed
February 7, 2011
Patent primary examiner
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