Abstract: A light emitting device includes a semiconductor light emitting element which emits excitation light having a peak wavelength in a range of 440 to 450 nm and a fluorescent body layer which is provided on the semiconductor light emitting element, is excited by the excitation light from the semiconductor light emitting element, and contains a first fluorescent body and a second fluorescent body which emit first fluorescent light and second fluorescent light. The first fluorescent light has a peak wavelength in a range of 540 to 575 nm, and the second fluorescent light has a peak wavelength in a range of 590 to 605 nm. In mixed color light of the radiation light, the intensity of the radiation light of the semiconductor light emitting element is 1/10 to 1/60 of the intensity of the combined light of the radiation light from the first fluorescent body and the second fluorescent body.

Abstract: A holding member has a hole with a front tapered shape in a sliding direction of a sliding portion, and the hole and the sliding portion engage with each other.

Abstract: A molding die for molding a resin-made roller shaft therein includes: a cavity for molding the roller shaft therein; and a holding member which is provided on an end of the cavity and holds both ends in an axial direction of the roller shaft, wherein the holding member can rotate the roller shaft around a axis of the roller shaft.

Abstract: A holding member has a hole with a front tapered shape in a sliding direction of a sliding portion, and the hole and the sliding portion engage with each other.

Abstract: A molding die for molding a resin-made roller shaft therein includes: a cavity for molding the roller shaft therein; and a holding member which is provided on an end of the cavity and holds both ends in an axial direction of the roller shaft, wherein the holding member can rotate the roller shaft around a axis of the roller shaft

Abstract: The invention provides a heating apparatus which has a high heating efficiency, can locally heat a part to be heated, can achieve a rated temperature for an extremely short time after starting the heating, reduces a large rush current and flicker at a time of lighting, has a long service life, and can correspond to a plurality of modes having different heating widths, an infrared ray lamp suitable for the heating apparatus, and a high reliable electronic apparatus having the above-mentioned heating apparatus. The infrared ray lamp in accordance with the invention seals one or a plurality of heat generating elements in a glass tube, the heat generating elements having a shape extending in a longitudinal direction at a fixed width and an opening part extending substantially in a longitudinal direction provided only in a part in the longitudinal direction.

Abstract: A material including a carbon-based substance and resins are mixed, and the mixture is extruded and dried, and the extrusion is sintered in an inert atmosphere, thereby obtaining a heating element material. The heating element material is reheated in a vacuum so that its resistance-temperature characteristic is adjusted to a necessary value, thereby obtaining a heating element for an infrared lamp. The heating element is a wire-shaped or plate-shaped heating element including the carbon-based substance, and an internal lead wire is wound around each of both ends of the heating element directly or via a graphite block so that a tight fit can be obtained. A coil spring is formed in the middle of the internal lead wire. The heating element is accommodated in a quartz glass tube filled with an inert gas.

Abstract: The invention provides a heating apparatus which has a high heating efficiency, can locally heat a part to be heated, can achieve a rated temperature for an extremely short time after starting the heating, reduces a large rush current and flicker at a time of lighting, has a long service life, and can correspond to a plurality of modes having different heating widths, an infrared ray lamp suitable for the heating apparatus, and a high reliable electronic apparatus having the above-mentioned heating apparatus. The infrared ray lamp in accordance with the invention seals one or a plurality of heat generating elements in a glass tube, the heat generating elements having a shape extending in a longitudinal direction at a fixed width and an opening part extending substantially in a longitudinal direction provided only in a part in the longitudinal direction.

Abstract: A material including a carbon-based substance and resins are mixed, and the mixture is extruded and dried, and the extrusion is sintered in an inert atmosphere, thereby obtaining a heating element material. The heating element material is reheated in a vacuum so that its resistance-temperature characteristic is adjusted to a necessary value, thereby obtaining a heating element for an infrared lamp. The heating element is a wire-shaped or plate-shaped heating element including the carbon-based substance, and an internal lead wire is wound around each of both ends of the heating element directly or via a graphite block so that a tight fit can be obtained. A coil spring is formed in the middle of the internal lead wire. The heating element is accommodated in a quartz glass tube filled with an inert gas.

Abstract: A material including a carbon-based substance and resins are mixed, and the mixture is extruded and dried, and the extrusion is sintered in an inert atmosphere, thereby obtaining a heating element material. The heating element material is reheated in a vacuum so that its resistance-temperature characteristic is adjusted to a necessary value, thereby obtaining a heating element for an infrared lamp. The heating element is a wire shaped or plate-shaped heating element including the carbon-based substance, and an internal lead wire is wound around each of both ends of the heating element directly or via a graphite block so that a tight fit can be obtained. A coil spring is formed in the middle of the internal lead wire. The heating element is accommodated in a quartz glass tube filled with an inert gas.

Abstract: A material including a carbon-based substance and resins are mixed, and the mixture is extruded and dried, and the extrusion is sintered in an inert atmosphere, thereby obtaining a heating element material. The heating element material is reheated in a vacuum so that its resistance-temperature characteristic is adjusted to a necessary value, thereby obtaining a heating element for an infrared lamp. The heating element is a wire-shaped or plate-shaped heating element including the carbon-based substance, and an internal lead wire is wound around each of both ends of the heating element directly or via a graphite block so that a tight fit can be obtained. A coil spring is formed in the middle of the internal lead wire. The heating element is accommodated in a quartz glass tube filled with an inert gas.