Abstract: An optical filter includes a glass substrate having a first main surface and a second main surface opposite each other and including phosphoric acid glass, a first antireflective layer disposed directly or indirectly on the first main surface of the glass substrate, and a resin layer, containing dye, disposed as one or more layers directly or indirectly on the second main surface of the glass substrate, wherein the glass substrate includes a predetermined range of amount of oxides, wherein the dye has a maximum absorption wavelength in the resin layer at a wavelength range of 690 to 800 nm, wherein thickness of the resin layer is 10 ?m or less, wherein the optical filter has all spectral characteristics specified in (a-1) to (a-6), and wherein a Haze value of the optical filter is 2% or less.

Abstract: An optical filter includes: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, in which the substrate includes a resin layer, the resin layer includes a transparent resin, a UV dye, and an IR dye that has a maximum absorption wavelength at a wavelength of 650 nm to 800 nm, and the UV dye satisfies all of characteristics (i-1) to (i-4).

Abstract: An optical filter includes: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, in which the substrate includes a resin film including a resin, a UV pigment 1 having a maximum absorption wavelength in 360 nm to 390 nm in the resin, and an IR pigment having a maximum absorption wavelength in 680 nm to 800 nm in the resin, and the optical filter satisfies all of spectral characteristics (i-1) to (i-8).

Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (NIR1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-7).

Abstract: An optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate as an outermost layer, in which the substrate includes a resin film including a dye (I) having a maximum absorption wavelength in a wavelength of 690 to 900 nm in dichloromethane, and a resin, the optical filter transmits visible light and light in at least part of a wavelength of 900 to 1,000 nm, and the optical filter satisfies specific spectroscopic characteristics.

Abstract: An optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate as an outermost layer, in which the substrate includes a resin film including a dye (IR) and a resin, the dye (IR) has a maximum absorption wavelength in a wavelength of 680 to 800 nm in the resin, and the optical filter satisfies specific spectroscopic characteristics.

Abstract: The present invention relates to an optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, as an outermost layer, in which: the substrate includes a resin film containing a dye (U) having a maximum absorption wavelength in a range of 360 to 395 nm in dichloromethane, a dye (A) having a maximum absorption wavelength in a range of 600 to 800 nm in dichloromethane, and a resin; and the optical filter satisfies spectral characteristics (i-1) to (i-5).

Abstract: An optical filter includes: a transparent substrate; and an absorption layer on the transparent substrate, the absorption layer containing at least one dye (X) having a maximum absorption wavelength in 600 to 1000 nm. A laminate of the transparent substrate and the absorption layer satisfies all of the following characteristics (i-2) to (i-4): (i-2) a maximum internal transmittance in 700 to 850 nm is 35% or lower; (i-3) a difference between the maximum internal transmittance and a minimum internal transmittance in 700 to 850 nm is 20% or smaller; and (i-4) OD(A) and OD(B) satisfy the following relationship: OD(A)/OD(B)<0.07 where OD(A) is an average optical density of an internal transmittance in 500 to 600 nm and OD(B) is an average optical density of an internal transmittance in 700 to 850 nm.