Abstract: A light-emitting module includes: a board; and a plurality of light sources arranged in a two-dimensional array on the board and including a plurality of color temperatures. In a first direction of the two-dimensional array, light sources having a uniform color temperature are successively arranged. The number of light sources having a uniform color temperature and successively arranged in each array line in the first direction is less than or equal to half of the total number of light sources in the array line in the first direction.

Abstract: A light emitting module is provided in which color unevenness of illumination light is difficult to occur. An optical member formed from a translucent material having a refractive index higher than air is interposed between a first light emitting part and a second light emitting part. A side surface of the optical member has a region facing a first sealing member, and the region is at least partially in contact with a surface of the first sealing member. The side surface of the optical member has a region facing a second sealing member, and the region is at least partially in contact with a surface of the second sealing member. In plan view, an upper surface of the optical member does not substantially overlap either of an upper surface of a first light emitting element or an upper surface of a second light emitting element.

Abstract: A light-emitting module includes: a board; and a plurality of light sources arranged in a two-dimensional array on the board and including a plurality of color temperatures. In a first direction of the two-dimensional array, light sources having a uniform color temperature are successively arranged. The number of light sources having a uniform color temperature and successively arranged in each array line in the first direction is less than or equal to half of the total number of light sources in the array line in the first direction.

Abstract: A light emitting module is provided in which color unevenness of illumination light is difficult to occur. An optical member formed from a translucent material having a refractive index higher than air is interposed between a first light emitting part and a second light emitting part. A side surface of the optical member has a region facing a first sealing member, and the region is at least partially in contact with a surface of the first sealing member. The side surface of the optical member has a region facing a second sealing member, and the region is at least partially in contact with a surface of the second sealing member. In plan view, an upper surface of the optical member does not substantially overlap either of an upper surface of a first light emitting element or an upper surface of a second light emitting element.

Abstract: A variable color light emitting device includes first, second and third light sources differing in chromaticity of emission light; and a driver for changing light outputs. The chromaticities of the second and third light sources are selected such that, on straight lines passing through reference chromaticities of the second and third light sources and a chromaticity of an arbitrary color temperature on the blackbody locus, a ratio of a distance between the chromaticity of the second light source and the chromaticity on the blackbody locus to a distance between the chromaticity of the third light source and the chromaticity on the blackbody locus becomes equal to a ratio of a distance between the reference chromaticity of the second light source and the chromaticity on the blackbody locus to a distance between the reference chromaticity of third light source and the chromaticity on the blackbody locus.

Abstract: According to the present invention, provided is a birefringent transfer foil, comprising a temporary support, an orientation layer, a birefringent layer (preferably a patterned optically anisotropic layer) formed from a composition comprising a liquid-crystal compound having at least one reactive group, said orientation layer being in contact with the temporary support or a releasing layer, wherein the releasing layer being in contact with the temporary support, and said orientation layer being a layer comprising a cellulose alkyl ether or a hydroxyalkyl derivative of cellulose alkyl ether. In the birefringent transfer foil of the present invention, the above orientation layer also functions as a protective layer and a detachment layer, enabling to reduce the manufacturing cost.

Abstract: According to the present invention, a birefringence pattern transfer foil, comprising at least one patterned optically anisotropic layer having two or more regions of differing birefringence and at least one adhesive layer on a temporary support, characterized in that a blocking prevention means is provided to the adhesive layer and/or characterized in that the retardation of the adhesive layer is 40 nm or less is provided. The birefringence pattern transfer foil of the present invention has excellent applicability and handling, and can be used on a variety of subjects.

Abstract: A variable color light emitting device includes first, second and third light sources differing in chromaticity of emission light; and a driver for changing light outputs. The chromaticities of the second and third light sources are selected such that, on straight lines passing through reference chromaticities of the second and third light sources and a chromaticity of an arbitrary color temperature on the blackbody locus, a ratio of a distance between the chromaticity of the second light source and the chromaticity on the blackbody locus to a distance between the chromaticity of the third light source and the chromaticity on the blackbody locus becomes equal to a ratio of a distance between the reference chromaticity of the second light source and the chromaticity on the blackbody locus to a distance between the reference chromaticity of third light source and the chromaticity on the blackbody locus.