OPTICAL FILTER
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United States of America
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Issued Date -
Feb 13, 2025
app pub date -
Oct 22, 2024
filing date -
Oct 22, 2024
priority date (Note) -
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Abstract
An optical filter includes: an absorber including an inorganic material including ytterbium; an absorption layer including a dye and a resin, the dye having a maximum absorption wavelength between 350 nm and 1,200 nm; and a dielectric multilayer film. The absorber may have a flat plate shape, and the absorber may have a thickness of 3 mm or less.
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