US Patent 7319558 Wide-band wave plate and a controlling method thereof
Patent 7319558 was granted and assigned to Konica Minolta Holdings on January, 2008 by the United States Patent and Trademark Office.
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Patent abstract
A wide-band wave plate having at least two wave plates, each of which has a microstructure to generate a phase difference, the microstructure having a cycle not shorter than 1/nmin of a shortest wavelength of light in use, wherein the two wave plates are arranged to face opposite with their main axes in non-parallel with each other, wherein nmin is a refractive index of a wave plate material with respect to the shortest wavelength.
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Current Assignee
Patent Jurisdiction
Patent Number
73195580
Date of Patent
January 15, 2008
0Patent Application Number
113609470
Date Filed
February 23, 2006
0Patent Primary Examiner
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US Patent 07319558 Wide-band wave plate and a controlling method thereof US Patent 7319558 Wide-band wave plate and a controlling method thereof
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Patent Number
0731955800
Patent Number
731955800
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
073195580
Date of Patent
January 15, 2008
0Patent Application Number
113609470
Date Filed
February 23, 2006
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
073195580
Date of Patent
January 15, 2008
0Patent Application Number
113609470
Date Filed
February 23, 2006
0Official Website
Patent Primary Examiner
Edits on 17 Jun, 2022
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US Patent 07319558 Wide-band wave plate and a controlling method thereof
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07319558
Date of patent
January 15, 2008
Patent application number
11360947
Date Filed
February 23, 2006
Patent primary examiner
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