US Patent 7929220 Adjustable apodized lens aperture
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Patent abstract
An adjustable apodized lens aperture is described which is constructed using photochromic material. As the excitation energy increases, the aperture constricts so as reduce the amount of light through the aperture. As the excitation energy decreases, the aperture dilates so as increase the amount of light through the aperture.
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Patent Inventor Names
Michel Sayag0
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US Patent 07929220 Adjustable apodized lens aperture US Patent 7929220 Adjustable apodized lens aperture
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Patent Number
07929220
Patent Number
7929220
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US Patent 07929220 Adjustable apodized lens aperture
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Is a
Patent jurisdiction
Patent number
07929220
Date of patent
April 19, 2011
Patent application number
12582586
Date Filed
October 20, 2009
Patent primary examiner
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