Abstract: A light source module includes first LED elements that emit blue light, second LED elements that emit amber light, and a wavelength conversion member disposed in optical paths of the first LED elements and the second LED elements. The wavelength conversion member converts a portion of the blue light emitted by the first LED elements to yellow light, transmits a portion of the blue light emitted by the first LED elements, and substantially transmits the amber light emitted by the second LED elements.

Abstract: A sintered compact includes a wavelength conversion region containing a phosphor material that performs wavelength conversion of primary light and emits secondary light, and a holding region provided to be in contact with the wavelength conversion region. The wavelength conversion region and the holding region are integrated.

Abstract: A sintered compact includes a wavelength conversion region containing a phosphor material that performs wavelength conversion of primary light and emits secondary light, and a holding region provided to be in contact with the wavelength conversion region. The wavelength conversion region and the holding region are integrated.

Abstract: A sintered compact includes a wavelength conversion region containing a phosphor material that performs wavelength conversion of primary light and emits secondary light, and a holding region provided to be in contact with the wavelength conversion region. The wavelength conversion region and the holding region are integrated.

Abstract: A light source module includes first LED elements that emit blue light, second LED elements that emit amber light, and a wavelength conversion member disposed in optical paths of the first LED elements and the second LED elements. The wavelength conversion member converts a portion of the blue light emitted by the first LED elements to yellow light, transmits a portion of the blue light emitted by the first LED elements, and substantially transmits the amber light emitted by the second LED elements.

Abstract: A sintered compact includes a wavelength conversion region containing a phosphor material that performs wavelength conversion of primary light and emits secondary light, and a holding region provided to be in contact with the wavelength conversion region. The wavelength conversion region and the holding region are integrated.

Abstract: Provided is a light emitting device. A semiconductor light emitting element with a peak wavelength ranging from 395 nm to 410 nm is used as a light source, light scattering particles made of a material with a band gap of 3.4 eV or more are dispersed in a dispersion medium of a reflection member, and a refractive index of the light scattering particles is larger than a refractive index of the dispersion medium by 0.3 or more. The semiconductor light emitting element has a 1 percentile value ranging from 365 nm to 383 nm in emission integrated intensity.

Abstract: In a light emitting module, a red phosphor is contained in a second phosphor layer so that the wavelength of a second phosphor layer after the wavelength conversion is longer than that of a first phosphor layer. And a blue phosphor and a yellow-green phosphor are contained in the first phosphor layer. The first phosphor layer is formed in an illumination area of light emitted from an LED chip, and the first phosphor layer converts the wavelength of the light from the LED chip and emits the wavelength-converted light from an emission surface. A part of the second phosphor layer is formed in a non-direct area where no light is illuminated from the LED chip and where light is illuminated from the first phosphor layer. The part of the second phosphor layer formed in the non-direct illumination area converts the wavelength of the light emitted from the first phosphor layer.

Abstract: In a light emitting module, a red phosphor is contained in a second phosphor layer so that the wavelength of a second phosphor layer after the wavelength conversion is longer than that of a first phosphor layer. And a blue phosphor and a yellow-green phosphor are contained in the first phosphor layer. The first phosphor layer is formed in an illumination area of light emitted from an LED chip, and the first phosphor layer converts the wavelength of the light from the LED chip and emits the wavelength-converted light from an emission surface. A part of the second phosphor layer is formed in a non-direct area where no light is illuminated from the LED chip and where light is illuminated from the first phosphor layer. The part of the second phosphor layer formed in the non-direct illumination area converts the wavelength of the light emitted from the first phosphor layer.