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:
Oct. 30, 2018
Filed:
Oct. 31, 2014
Woo Joo Lah, Gyeonggi-do, KR;
Woo Joo Lah, Gyeonggi-do, KR;
Other;
Abstract
An optical filter and an imaging device comprising the optical filter are provided. The optical filet comprises: a binder resin; a light absorption containing at least two kinds of light absorbents dispersed in the binder resin; and a near-infrared reflection layer. Further, the light absorbents comprise a first light absorbent having maximum absorption in a wavelength range of 680 to 700 nm and a second light absorbent having maximum absorption in a wavelength range of 700 to 750 nm, a wavelength at which the near-infrared reflection layer has a transmittance of 50% with regard to light incident in a direction perpendicular to the optical filter is in a range of 680 to 730 nm, and the optical filter satisfies [Equation 1] ΔE*≤1.5, wherein ΔE* represents a color difference between light, which has been incident in a direction perpendicular to the optical filter and has passed through the optical filter, and light, which has been incident at an angle of 30° with regard to the direction perpendicular to the optical filter and has passed through the optical filter.