The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Jul. 26, 2022
Agc Inc., Tokyo, JP;
Optical Coatings Japan, Tokyo, JP;
Hideaki Takahoshi, Tokyo, JP;
Kazuya Takemoto, Tokyo, JP;
Keisuke Kawai, Tokyo, JP;
Masaaki Miyake, Tokyo, JP;
AGC Inc., Tokyo, JP;
Optical Coatings Japan, Tokyo, JP;
Abstract
An optical filter, including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, the dielectric multilayer film including at least two different layers, where: the dielectric multilayer film includes four or more films having a spin density of 5.0×10/nm·cmor larger, each of the four or more films has a minimum thickness of 1.5 nm to 5 nm, a maximum transmittance at an incident angle of 0° in a wavelength range of 400 nm to 680 nm is 6% or lower, a maximum reflectance at an incident angle of 5° in the wavelength range is 20% or lower, and an average transmittance at an incident angle of 0° in at least one wavelength range having a width of 40 nm included in a wavelength range of 800 nm to 1570 nm is 90% or higher.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile