Provided is a laminated glass set of a plurality of laminated glasses having excellent appearance designability. A laminated glass set according to the present invention is a set of a plurality of laminated glasses, each laminated glass includes an interlayer film part having a colored part, the colored part has a specific gradation part, the gradation part forms a tip of the colored part on the other end side of the interlayer film part, and when distance X from one end of the interlayer film part to a tip of the colored part on the other end side of the interlayer film part is measured in each of the plurality of laminated glasses, the laminated glass set satisfies (|X.sub.max−X.sub.min|)/X.sub.ave≤0.1, or when distance Y of the colored part in the direction connecting one end and the other end of the interlayer film part is measured in each of the plurality of laminated glasses, the laminated glass set satisfies (|Y.sub.max−Y.sub.min|)/Y.sub.ave≤0.1.

An interlayer film for laminated glass of the present invention comprises at least an absorption region in which a skin absorption energy rate (X1) of a laminated glass is 25% or less, provided that the laminated glass is produced using two clear glass plates having a solar transmittance of 87.3% based on JIS R 3106.

A polymer film comprising polyvinyl acetal and a laminated glass manufactured using the same are provided. At least one surface of the polymer film has a void volume (Vv) value at a material ratio of 10% ranging from 2 μm.sup.3/μm.sup.2 to 18 μm.sup.3/μm.sup.2, wherein the void volume (Vv) and material ratio are defined in accordance with ISO 25178-2:2012.

An optical filter comprising a variable transmittance layer having a first spectrum in a dark state, and a second spectrum in a faded state; and a color balancing layer having a third spectrum; each of the first, second and third spectra comprising a visible portion; the first and third spectra combining to provide a dark state spectrum approximating a dark state target color, and the second and third spectra combining to provide a faded state spectrum approximating a faded state target color. The optical filter may further comprise a light attenuating layer. The optical filter may further comprise part of a laminated glass.

There is provided an interlayer film for laminated glass which is high in heat shielding properties. The interlayer film for laminated glass according to the present invention includes an infrared ray reflection layer which reflects infrared rays, a first resin layer which is arranged on a first surface side of the infrared ray reflection layer and contains a thermoplastic resin and a second resin layer which is arranged on a second surface side of the infrared ray reflection layer and contains a thermoplastic resin, and the infrared ray transmittance in the wavelength of 780 to 2100 nm of the first resin layer is higher by 10% or more than the infrared ray transmittance in the wavelength of 780 to 2100 nm of the second resin layer.

A polymer film comprising polyvinyl acetal and a laminated glass manufactured using the same are provided. At least one surface of the polymer film has a void volume (Vv) value at a material ratio of 10% ranging from 2 μm.sup.3/μm.sup.2 to 18 μm.sup.3/μm.sup.2, wherein the void volume (Vv) and material ratio are defined in accordance with ISO 25178-2:2012.

A laminated glazing comprising first and second sheets of glass joined together by an interlayer structure comprising at least first and second layers of adhesive interlayer material with a support sheet therebetween is disclosed. The laminated glazing is arranged such that the first layer of adhesive interlayer material is between the first sheet of glass and the support sheet, the second layer of adhesive interlayer material is between the second sheet of glass and the support sheet support material and at least a portion of the second major surface of the first sheet of glazing material faces the first major surface of the second sheet of glazing material. In the event of breakage of the first sheet of glass, the second layer of adhesive interlayer material remains attached to the support sheet thereby keeping the second glass sheet from becoming detached from the laminated glazing.

There is provided an interlayer film for laminated glass with which the sound insulating properties in a high frequency area of 2000 Hz or more can be effectively enhanced. The interlayer film for laminated glass according to the present invention has a two or more-layer structure and is provided with a first layer containing a thermoplastic resin and a second layer containing a thermoplastic resin, the second layer is arranged on a first surface side of the first layer, and the interlayer film is provided with Constitution A: “the glass transition temperature of the second layer being 32° C. or more, the glass transition temperature of the first layer being lower than the glass transition temperature of the second layer, and the thickness of the interlayer film being more than 787 μm and 950 μm or less” or Constitution B: “the glass transition temperature of the second layer being 25° C. or more, the glass transition temperature of the first layer being lower than the glass transition temperature of the second layer, and the thickness of the interlayer film being more than 950 μm”.

Provided are a novel naphthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high resistance such as light resistance and heat resistance, and exhibits excellent solubility in an organic solvent or a resin, a heat ray shielding material, and uses of the naphthalocyanine compound such as a heat ray shielding material and the like.

The naphthalocyanine compound is represented by General Formula (1).

##STR00001##

wherein, in Formula (1), M represents two hydrogen atoms, a divalent metal, or a derivative of a trivalent or tetravalent metal, R.sub.1 to R.sub.3 each independently represent a hydrogen atom, a halogen atom, or a linear, branched, or cyclic alkyl group, A represents Formula (2), and B represents Formula (3),

##STR00002##

wherein, in Formula (2), R.sub.4 to R.sub.8 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryloxy group, or an arylthio group, and

##STR00003##

wherein, in Formula (3), X represents an oxygen atom, a sulfur atom, and or an imino group, R.sub.9 to R.sub.13 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an ester group, an amide group, or a sulfonamide group.

There is provided a laminated glass excellent in sound insulating property. A laminated glass includes: a pair of glass plates facing each other; and an intermediate film sandwiched between the pair of glass plates, including alternately laminated at least one skin layer and two or more core layers, wherein the skin layer has a glass transition point of 15° C. or higher, and each of the core layers has a glass transition point of less than 15° C., and a ratio of a mass of the intermediate film with respect to a total mass of the intermediate film and the pair of glass plates is 14 mass % or more.