摘要:
In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.
摘要:
In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially tills an interior volume defined by the light-transmissive cover and the printed circuit board.
摘要:
An illuminated sign (88) includes a flexible electrical power cord (100) including first and second parallel conductors (112, 114) surroundingly contained within an insulating sheath defining a constant separation distance between the parallel conductors (112, 114). A plurality of light emitting diode (LED) devices (102) are affixed to the cord (100). Each LED device (102) includes an LED (104) having a positive lead (130P) electrically communicating with the first parallel conductor (112) and a negative lead (130P) electrically communicating with the second parallel conductor (114). A stencil (92) defines a selected shape, and the electrical cord (100) is arranged on the stencil (92). Power conditioning electronics (210, 220) disposed away from the stencil (92) electrically communicate with the first and second parallel conductors (112, 114) of the electrical power cord (100). The power conditioning electronics (210, 220) power the LED devices (102) via the parallel conductors (112, 114).
摘要:
An illustrative lighting device comprises: a light emitting chip; a silicone encapsulant disposed over the light emitting chip; and a light transmissive vinyl or acrylic layer sealing an assembly including at least the silicone encapsulant and the light emitting chip. An illustrative method of fabricating a lighting device comprises: encapsulating a light emitting chip with a silicone encapsulant; and sealing an assembly including at least the silicone encapsulant and the light emitting chip using a light transmissive vinyl or acrylic layer. An illustrative method of fabricating a lighting device comprises: encapsulating a light emitting chip with a silicone encapsulant; and sealing an assembly including at least the silicone encapsulant and the light emitting chip by disposing a light transmissive plastic layer as a unit over the assembly.
摘要:
In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.
摘要:
In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.
摘要:
In a lighting package, a printed circuit board supports at least one light emitting die. A light transmissive cover is disposed over the at least one light emitting die. A phosphor is disposed on or inside of the light transmissive dome-shaped cover. The phosphor outputs converted light responsive to irradiation by the at least one light emitting die. An encapsulant substantially fills an interior volume defined by the light-transmissive cover and the printed circuit board.
摘要:
A light emitting package includes a support (12, 112, 212) defining a support surface (14). A first light emitting diode chip (20, 120, 220) is secured to the supporting surface and is configured to emit light having a first spectral distribution. A second light emitting diode chip (22, 122, 123, 222) is secured to the first light emitting diode chip. The second light emitting diode chip is configured to emit light having a second spectral distribution different from the first spectral distribution. Optionally, a third light emitting diode chip (223) is disposed on the second light emitting diode chip (222).
摘要:
An LED light engine includes an electrical conductor, a flexible, electrically insulating covering surrounding the electrical conductor, and an LED. The electrical conductor includes a plurality of conductive elements. A connector is mechanically secured to the flexible insulating covering and electrically contacts the electrical conductor. In one embodiment, the LED electrically contacts the electrical conductor and is mechanically secured to the insulating covering. Alternatively, the LED electrically contacts the electrical conductor and is mechanically secured to the insulating covering via the connector.
摘要:
A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.