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NEAR INFRARED LIGHT ABSORPTION GLASS, NEAR INFRARED LIGHT ABSORPTION ELEMENT AND NEAR INFRARED LIGHT ABSORPTION OPTICAL FILTER
NEAR INFRARED LIGHT ABSORPTION GLASS, NEAR INFRARED LIGHT ABSORPTION ELEMENT AND NEAR INFRARED LIGHT ABSORPTION OPTICAL FILTER
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机译：近红外光吸收玻璃，近红外光吸收元件和近红外光吸收滤光片
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摘要
PROBLEM TO BE SOLVED: To provide a near infrared light absorption glass, a near infrared light absorption element and a near infrared light absorption optical filter small in load to the environment and excellent in uniformity and permeation property in the visible region.;SOLUTION: The near infrared light absorption glass has permeability of light with wave length of 400 nm of 80% or more and permeability of light with 500 nm of 85% or more at thickness of 1 mm. The near infrared light absorption glass contains P5+, Al3+, Li+, R2+ and Cu2+ expressing a cation and R2+ represents Mg2+, Ca2+, Sr2+ and Ba2+. At the same time, it contains F- and O2- expressing an anion. The near infrared light absorption glass has water resistance DW reaching 1st class. The acid resistance DA reaches 4th class. The near infrared light absorption glass can obtain excellent chemical stability by effectively reducing melting temperature of the glass with a special designed composition having excellent weather resistance and a fluorophosphoric acid salt glass as a base material.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT
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