NEAR-INFRARED RAY CUT FILTER

• Main Authors: ARISHIMA HIROYUKI, SHIONO KAZUHIKO, TAKAHASHI MANA, HODAKA HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2015
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PROBLEM TO BE SOLVED: To provide a near-infrared cut filter that transmits light in a visible wavelength region, blocks light in a near-infrared ray wavelength region (710 to 1100nm), and further is excellent in heat-resistance.SOLUTION: A near-infrared ray cut filter comprises a near-infrared ray absorptive film that is made up of transparent resin (B) containing one or more near-infrared ray absorptive pigments (A) selected from a near-infrared ray absorptive pigment (A1) excellent in heat-resistance and illustrated in the formula (A1). 【課題】可視波長領域の光を透過し、近赤外線波長領域（７１０〜１１００ｎｍ）の光を遮蔽し、さらに、耐熱性に優れた近赤外線カットフィルタの提供を目的とする。【解決手段】耐熱性の高く、式（Ａ１）で示される近赤外線吸収色素（Ａ１）から選択される１種以上の近赤外線吸収色素（Ａ）を含有する透明樹脂（Ｂ）からなる近赤外線吸収層を有することを特徴とする近赤外線カットフィルタ。【選択図】なし