Patent ID: 11860390
Assignee: FUJIFILM CORPORATION
Field: Optics (Instruments)
Classification: CPC G  C  H | IPC G  H

Claim 0:
1. A wavelength selective absorption filter comprising
a resin; and
the following dye A and dye D, each of which has a main absorption wavelength band in a different wavelength range,
wherein an absorbance Ab (λ) at a wavelength λ nm of the wavelength selective absorption filter satisfies a relationship of the following Expression (I),
the dye A: a dye having a main absorption wavelength band in the wavelength selective absorption filter at a wavelength of 400 to 430 nm,
the dye D: a dye having a main absorption wavelength band in the wavelength selective absorption filter at a wavelength of 640 to 730 nm, and

0.05≤Ab(450)/Ab(430)<1.00.  Relational Expression (I)