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:
Sep. 10, 2019
Filed:
Mar. 16, 2016
Agc Inc., Chiyoda-ku, JP;
Asana Yoshioka, Koriyama, JP;
Kazuhiko Shiono, Koriyama, JP;
Hiroyuki Arishima, Koriyama, JP;
Hiroki Hotaka, Koriyama, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
Provided is an optical filter, which includes a light-absorbing layer and a light-reflecting layer and satisfies the following requirements: (i) in a spectral transmittance curve at an incident angle of 0°, an average transmittance over the 430-620 nm wavelength range is ≥80%, an average transmittance over the 430-450 nm wavelength range is ≥76%, an average transmittance over the 735-1100 nm wavelength range is ≤5%, and an average transmittance over the 350-395 nm wavelength is ≤5%; and (ii) there is a wavelength λ(UV) with transmittance of 50% in the 400-425 nm wavelength range in the spectral transmittance curve at the incident angle of 0°, there is a wavelength λ(UV) with transmittance of 50% in the 400-425 nm wavelength range in a spectral transmittance curve at an incident angle of 30°, and an absolute value of a difference between the wavelengths, |λ(UV)−λ(UV),| is ≤5 nm.