An infrared light radiation device includes a radiation unit and a condenser. The radiation unit includes a heater and a metamaterial structure. The metamaterial structure is able to radiate, when heat energy is input from the heater, infrared light having a peak wavelength of a non-Planck distribution. The condenser includes at least one condensing lens that concentrates and transmits toward outside the infrared light radiated from the radiation unit.

Examples disclosed herein relate to a to a pitch gradient in a lamp filament, and a method of making. In one implementation, a lamp has a bulb filled with a gas. A filament is disposed within the bulb. The filament has a plurality of coils that include a first coil having a first point. The plurality of coils includes a second coil having a second point, and a third coil having a third point. The pitch gradient is defined by a first pitch between the second point and the first point, and a second pitch between the third point and the second point. The second pitch is greater than the first pitch. The second point is 360 degrees away from the first point. The third point is 360 degrees from the second point. A terminal coil is electrically coupled to at least the first coil, the second coil, and the third coil.

Examples disclosed herein relate to a to a pitch gradient in a lamp filament, and a method of making. In one implementation, a lamp has a bulb filled with a gas. A filament is disposed within the bulb. The filament has a plurality of coils that include a first coil having a first point. The plurality of coils includes a second coil having a second point, and a third coil having a third point. The pitch gradient is defined by a first pitch between the second point and the first point, and a second pitch between the third point and the second point. The second pitch is greater than the first pitch. The second point is 360 degrees away from the first point. The third point is 360 degrees from the second point. A terminal coil is electrically coupled to at least the first coil, the second coil, and the third coil.

A conductive structure comprising: a plurality of conductive devices; a first conductive spring sheet, comprising a first connecting point; and a second conductive spring sheet, comprising a second connecting point. Each of the conductive devices comprises a first conductive end and a second conductive end. The second conductive end is connected to the second connecting point, and the first conductive end is connected to the first connecting point corresponding to the second connecting point to which the second conductive end is connected.

A conductive structure comprising: a plurality of conductive devices; a first conductive spring sheet, comprising a first connecting point; and a second conductive spring sheet, comprising a second connecting point. Each of the conductive devices comprises a first conductive end and a second conductive end. The second conductive end is connected to the second connecting point, and the first conductive end is connected to the first connecting point corresponding to the second connecting point to which the second conductive end is connected.

An LED bulb structure includes a glass envelope, support, LED light emitting body, tungsten filament light emitting body and electronic element units, where the glass envelope is vacuum-sealed, the support formed by a conducting wire is fixed inside it, both LED and tungsten filament light emitting bodies are configured on the support, the necessary electronic element units are configured on the support between the LED light emitting body and tungsten filament light emitting body, and one side of the support is set to a positive pole and another side thereof a negative pole. As arranged, air will enter the glass envelope of a broken LED bulb to cause the tungsten filament to be burned to break to extinguish, and thus to cause the LED light emitting body to extinguish in such a way to remind users that the broken LED bulb must be replaced with a new one.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Disclosed is a filament support and a lamp with the filament support. The filament support may include a main rod, a plurality of branch rods and a plurality of support members. The plurality of branch rods are all installed on the main rod; the support members are arranged at ends of at least some of the branch rods, both ends of the support member are curved or bent towards a same side, resulting in that the support member surrounds to form a penetrating zone, and an opening for communicating the penetrating zone is formed between both ends of the support member. Both ends of the support member are curved or bent towards a same side, resulting in that the support member surrounds to form a penetrating zone, and an opening for communicating the penetrating zone is formed between both ends of the support member.

Disclosed is a filament support and a lamp with the filament support. The filament support may include a main rod, a plurality of branch rods and a plurality of support members. The plurality of branch rods are all installed on the main rod; the support members are arranged at ends of at least some of the branch rods, both ends of the support member are curved or bent towards a same side, resulting in that the support member surrounds to form a penetrating zone, and an opening for communicating the penetrating zone is formed between both ends of the support member. Both ends of the support member are curved or bent towards a same side, resulting in that the support member surrounds to form a penetrating zone, and an opening for communicating the penetrating zone is formed between both ends of the support member.