摘要:
A emitter is formed of a thin-film membrane disposed within a cavity so as to provide a output beam. The emitter may be configured to obtain broadband light. The emitter may enhance the emissivity of light over a broad spectral band.
摘要:
A filament for a light bulb includes a tube and a filament material within the tube, wherein the filament material is configured to be in a liquid state while the light bulb is in use.
摘要:
The present disclosure relates to a method for heating an object. A sheet-shaped heat and light source is provided. The sheet-shaped heat and light source includes a carbon nanotube film curved to form a hollow cylinder, and at least two electrodes spaced from each other, located on a surface of the hollow cylinder and electrically connected to the carbon nanotube film. An object is located in the hollow cylinder. A voltage is supplied between the at least two electrodes.
摘要:
A halogen incandescent lamp for vehicle headlamps includes a coiled incandescent filament arranged within a transparent lamp vessel, wherein the incandescent filament is dimensioned in such a way that, during operation on an operating voltage of 13.2 V, the halogen incandescent lamp has an electrical power consumption in the region of greater than 22 watts and less than or equal to 27 watts and generates a luminous flux in the range of from 400 to 600 lumens.
摘要:
Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.
摘要:
A filament coil for an incandescent lamp assembly is provided. The filament coil includes a helical winding extending generally along a longitudinal axis between a first end and a second end. The filament coil further includes a winding having a first pitch ratio at the first and second ends, and a different, second pitch ratio along an intermediate portion located between the first and second ends.
摘要:
The present disclosure relates to a method for making the sheet-shaped heat and light source. An array of carbon nanotubes on a substrate is provided. A carbon nanotube film is formed by pressing the array of carbon nanotubes. A first electrode and a second electrode are electrically connected with the carbon nanotube film. Furthermore, a method for heating an object is related.
摘要:
An emitter is disclosed. The emitter includes a base layer comprising an array of nanocavities on an emission surface of the base layer, wherein facets of the nanocavities are substantially along equivalent crystallographic planes of one or more families of planes having substantially equal surface energies, wherein the equivalent crystallographic planes have surface energies equal to or lower than a surface energy of the crystallographic plane of the emission surface. Methods of making such emitters and radiation sources including such emitters are also disclosed.
摘要:
A light source includes a base, a light-transmissive envelope coupled to the base, a composition disposed within the light-transmissive envelope, and a gas phase contained by the envelope for suppressing vaporization of the composition at operating temperatures greater than about 2000 Kelvin. The composition includes a first region and a second region and operable to suppress or reflect photons having a wavelength greater than about 700 nm and to emit or transmit photons having a wavelength between about 400 nm and about 700 nm.
摘要:
There is provided an infrared light source that has a simple structure and radiates infrared rays polarized in a specific direction and having a specific wavelength. The infrared light source (100) comprises a heat generator (107) and a latticework (101) in which a dielectric part (105) and a metal part (103) are alternately formed at a constant pitch in a constant direction. The infrared rays are radiated in a direction perpendicular to the surface of the latticework and are polarized in the direction indicated by an arrow A. If the constant pitch is denoted by P, the width of the dielectric part in the constant direction by T, and the specific wavelength by λ, for arbitrary P and T that meet the inequalities 0