Filament lamp and light-irradiation-type heat treatment device

A filament lamp having multiple filament assemblies, each filament assembly comprising a coiled filament and connected leads to supply power to that filament, within a straight-line light emitting bulb with a sealed portion at at least one end, the filament assemblies being sequentially arranged in the axial direction of the light emitting bulb axis, the leads of each filament assembly being electrically connected to respective multiple conductive parts set in the sealed portions, and having a power supply mechanism that supplies power to each filament independently,

• wherein the power supply mechanism is a direct current power supply that is connected to the conductive parts so that the adjacent terminals of neighboring filament assemblies will have the same polarity.

A filament lamp having multiple filament assemblies, each filament assembly comprising a coiled filament and connected leads to supply power to that filament, within a straight-line light emitting bulb with a sealed portion at at least one end, the filament assemblies being sequentially arranged in the axial direction of the light emitting bulb axis, the leads of each filament assembly being electrically connected to respective multiple conductive parts set in the sealed portions, and having a power supply mechanism that supplies power to each filament independently,

• wherein the lead of each filament assembly has a hook-shaped part of which a tip has a radially directed part that is engaged by being sandwiched within a coil pitch of the filament and that extends outward in the radial direction of the filament coil,
• wherein each of the leads connected to adjacent ends of neighboring filaments is supported by a common support piece formed of positioning mechanisms with which the hook-shaped parts are engaged, by which the position of the filaments in the light emitting bulb is fixed, and
• wherein globular parts are formed on tips of the hook-shaped parts that sandwich the support pieces and extend toward each other.

Light-irradiation-type heat treatment device having a lamp unit with multiple filament lamps arranged in parallel, in which an article to be treated is heated by irradiating the article to be treated with light emitted by the light unit,

• wherein each lamp has multiple filament assemblies, each filament assembly comprising a coiled filament and connected leads to supply power to that filament, within a straight-line light emitting bulb with a sealed portion at at least one end, the filament assemblies being sequentially arranged in the axial direction of the light emitting bulb axis, the leads of each filament assembly being electrically connected to respective multiple conductive parts set in the sealed portions, and having a power supply mechanism that supplies power to each filament independently, and
• wherein the power supply mechanism is an alternating current power supply that is connected to the conductive parts and supplies in-phase current.

Light-irradiation-type heat treatment device having a lamp unit with multiple filament lamps arranged in parallel, in which an article to be treated is heated by irradiating the article to be treated with light emitted by the light unit,

• wherein each lamp has multiple filament assemblies, each filament assembly comprising a coiled filament and connected leads to supply power to that filament, within a straight-line light emitting bulb with a sealed portion at at least one end, the filament assemblies being sequentially arranged in the axial direction of the light emitting bulb axis, the leads of each filament assembly being electrically connected to respective multiple conductive parts set in the sealed portions, and having a power supply mechanism that supplies power to each filament independently, and
• wherein the power supply mechanism is a direct current power supply that is connected to the conductive parts so that the adjacent terminals of neighboring filament assemblies will have the same polarity.