摘要:
Heavily phosphor loaded LED packages having higher stability and a method for increasing the stability of heavily phosphor loaded LED packages. The silicone content of the packages is increased by decreasing the amount of one phosphor of the blend or by increasing the thickness of the silicone phosphor blend layer.
摘要:
Materials and optical components formed thereof that are suitable for use in lighting units to obtain or approximate white light illumination, including lighting units that utilize one or more light-emitting diodes (LEDs) as a light source.
摘要:
LED based lamps are disclosed. In an embodiment, an LED based lamp includes a concave optical diffuser, a concave neodymium-doped glass bulb, a reflector, a printed circuit board that includes a plurality of light-emitting diodes (LEDs) configured to emit light, and a heat sink body. The concave optical diffuser has a first interior volume, and the concave neodymium-doped glass bulb is positioned within the first interior volume. The neodymium-doped glass bulb defines a second interior volume, and both the reflector and the printed circuit board are positioned within the second interior volume. The reflector includes a sloped annular wall with an inner reflective surface and an outer reflective surface, and a bottom portion of the reflector is connected to the printed circuit board. The heat sink is thermally connected to the printed circuit board and to the reflector.
摘要:
Processes for recovering inorganic powder materials from polymer-based coating compositions used to deposit a polymer-based coating. The process includes combining a polymer precursor, first solvent, and inorganic powder material to form a suspension, and applying the suspension to a substrate to form a layer. At least a portion of the suspension that did not adhere to the substrate is then collected. Residual portions of the first solvent and polymer precursor are at least partially removed from this portion of the suspension to yield a crude inorganic powder material comprising a residual portion of the inorganic powder and optionally a partially-cured polymer precursor, the latter of which can be removed by treating the crude inorganic powder material with a second solvent.
摘要:
The specification and drawings present a new apparatus such as a lighting apparatus, the apparatus comprising at least one LED (or OLED) module, configured to generate a visible light such as white light, and at least one component such as optical component comprising a compound consisting essentially of the elements neodymium (Nd) and fluorine (F), and optionally including one or more other elements. The lighting apparatus is configured to provide a desired light spectrum by filtering the generated visible light using the compound. The at least one component can comprise a NdFxOy compound with values of x and y determining a content ratio F/O, which may be adjusted during manufacturing of the NdFxOy compound to provide desired output light parameters of the apparatus including at least a desired output light spectrum realized by filtering the generated visible light using the NdFxOy compound.
摘要:
In some embodiments, a method of manufacturing a lighting system comprises: coupling a light source to a reflector, the reflector including a substrate having a first side configured to face toward the light source; and disposing an organic phosphor layer on the first side of the substrate. In some embodiments, a method comprises: determining target color characteristics for light produced by a lighting system of a first type; for each one of a plurality of lighting systems of the first type: (a) measuring color characteristics of light produced by the one of the plurality of lighting systems; (b) determining characteristics of a phosphor layer to be disposed on a reflector of the one of the plurality of lighting systems; and (c) disposing a phosphor layer having the determined characteristics on the reflector of the one of the plurality of lighting systems.
摘要:
Heavily phosphor loaded LED packages having higher stability and a method for increasing the stability of heavily phosphor loaded LED packages. The silicone content of the packages is increased by decreasing the amount of one phosphor of the blend or by increasing the thickness of the silicone phosphor blend layer.
摘要:
Methods and materials capable of controlling the type and relative amounts of reflectance (e.g., specular vs. diffusive reflection) in reflective coatings, especially for inclusion in a lighting fixture or other lighting source. A method of forming a reflective coating on a substrate includes applying to the substrate a precursor material that comprises a cross-linkable binder resin, a cross-linking agent, and scattering pigment particles. The pigment particles are predominantly at or near an outer surface of the applied precursor material. Thereafter, the applied precursor material undergoes a single or multistep cure to form the reflective coating by cross-linking the binder resin. The cure energy level and duration inhibit migration of the pigment particles and/or the binder resin in the applied precursor material so that the pigment particles remain predominantly at or near an outer surface of the reflective coating.
摘要:
A composite material (11,21) for light filtering, comprising: a polymeric matrix material and particles of neodymium compound doped in the polymeric matrix material. A lighting apparatus (10,20) comprises the composite material. A method for determining a doping concentration of particles of neodymium compound in the composite material, and a method for determining a thickness of the composite material are also described.
摘要:
Materials and optical components formed thereof that are suitable for use in lighting units to obtain or approximate white light illumination, including lighting units that utilize one or more light-emitting diodes (LEDs) as a light source.