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US 2024/0405046 A1Published application
Infrared light pass filter, coloring composition, filter for solid-state image sensors, and solid-state image sensor
AssigneeToppan Holdings Inc.
InventorsTetsuya HIROTA, Chiharu TAKUBO
Life of this patent
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Abstract
An infrared light pass filter includes a colorant, an indium tin oxide, and a polymer. The infrared light pass filter has an average transmittance of 30% or less in a first wavelength range of 400 nm or greater and 800 nm or less, an average transmittance of 75% or more in a second wavelength range of 900 nm or greater and 1100 nm or less, and an average transmittance of 55% or less in a third wavelength range of 1300 nm or greater and 2500 nm or less.
Claims10
An infrared light pass filter, comprising:
- an infrared light pass filter structure comprising a colorant, an indium tin oxide, and a polymer such that the infrared light pass filter structure has an average transmittance of 30% or less in a first wavelength range of 400 nm or more and 800 nm or less, an average transmittance of 75% or more in a second wavelength range of 900 nm or more and 1100 nm or less, and an average transmittance of 55% or less in a third wavelength range of 1300 nm or more and 2500 nm or less.
A coloring composition, comprising:
- a colorant that absorbs visible light;
- an indium tin oxide;
- and
- a polymerizable compound,
- wherein in a total solid content of the coloring composition, a content rate of the indium tin oxide is in a range of 10% by weight to 30% by weight.
2 more elements
Dependencies are inferred from the claim text.