OPTICAL FILTER AND APPLICATION OF THE SAME

• Main Authors: OHASHI YUKIE, UCHIDA YOSUKE, KAWABE YASUNORI, NAGAYA KATSUYA, KISHIDA HIROYUKI, SHIGEOKA DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 19.08.2021
• Subjects: ACCESSORIES THEREFOR; ADHESIVES; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; BASIC ELECTRIC ELEMENTS; CHEMISTRY; CINEMATOGRAPHY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; 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; PAINTS; PHOTOGRAPHY; PHYSICS; POLISHES; SEMICONDUCTOR DEVICES

To provide an optical filter excellent in near infrared ray shielding property irrespective of being thin in thickness.SOLUTION: The optical filter satisfies the following requirements (a) to (d): (a) in a region of wavelength 700 nm to 900 nm, minimal value (ODa-0) of optical density (OD value) of...