Abstract: A heater according to an embodiment includes: a tubular portion; a sealing portion; a conductive portion; a heating element; a lead having one end portion side electrically connected to the conductive portion with the other end portion side exposed from the sealing portion; a connecting portion electrically connected to the exposed lead; an introduction wire having one end portion side electrically connected to the connecting portion; a base storing the sealing portion, the exposed lead, the connecting portion, and an end portion of the introduction wire; and a seal portion covering the exposed lead, the connecting portion, and the end portion of the introduction wire. The base has a first hole at a position facing the connecting portion. A length of the first hole in a pipe axial direction is longer than that of the first hole in a direction orthogonal to the pipe axial direction.

Abstract: A lamp includes a bulb, a filament, a gas, and a reflective film. The filament is disposed in the interior of the bulb along the tube axis. The gas is filled in the interior of the bulb. The reflective film is formed on the outer circumferential surface of the bulb and reflects a light from the filament toward the interior of the bulb. Further, the reflective film may be formed by depositing a reflective film material containing TiO2, SiO2, and BaSO4 on the outer circumferential surface of the bulb.

Abstract: A lamp according to an embodiment includes a bulb, a filament, a gas, and a reflective film. The filament is disposed in the interior of the bulb along the tube axis. The gas is filled in the interior of the bulb. The reflective film is formed on the outer circumferential surface of the bulb and reflects a light from the filament toward the interior of the bulb. Further, the reflective film is formed by depositing a reflective film material containing TiO2, SiO2, and BaSO4 on the outer circumferential surface of the bulb.

Abstract: According to embodiments, a heater lamp that includes a bulb and an anchor ring is provided. The bulb has a linear portion and at least one bent portion. The bulb has a filament therein that includes a plurality of first coils which are connected in series, and a second coil which is connected to the first coils in series and has a number of turns less than that of the first coils. The bulb is sealed at both ends and light transmissive. The anchor ring holds the filament inside the bulb.