摘要:
A lamp (10) has a reflector (12) arrayed about an axis (14). The reflector has a circumferential rim (16) and an LED light source (18) that is mounted upon a support (20). The support can be arrayed along the circumferential rim (16) or mounted directly to the concave reflector (12).
摘要:
A lamp, and a method of assembling the lamp, includes a heat sink, a heat conductive post extended longitudinally from the heat sink where the post has longitudinal faces that each has a longitudinally extending slot therein, a metal clad circuit board slid into each slot so that each circuit board is in thermal communication with the post where each circuit board has an exterior surface with an LED thereon, and a cap on top of the post where the cap abuts lateral end surfaces of the circuit boards. The cap may hold the circuit boards in their respective slots.
摘要:
An LED light source (10) has a substantially planar housing (12) transversely arrayed about a longitudinal axis (14) and including a through-hole (16) in a first surface (17) thereof. A planar, heat conductive support (18) is positioned with the housing, the planar heat conductive support (18) having a front side (20), a back side (22) and a center point (24) coaxial with said longitudinal axis (14). LEDs (26) are mounted on the front side (20) and are arrayed about the center point (24). A base (28) supports the planar, heat conductive support (18) and is fixed to the housing (12). A heat sink (30) is in thermal contact with the base (28) and extends outwardly of the housing (12). A connector (32) is formed with the housing (12) for receiving electrical input to the LEDs.
摘要:
A virtual point light source (10) has a support (12) having an axis (14), a plurality of individual light emitting diodes (16) positioned on the support (12); and an individual optic (18) associated with each of the light emitting diodes (16), each of the individual optics (18) focusing the light from its associated light emitting diode (16) to a virtual point (20) on the axis (14) at a distance (D) from said support.
摘要:
A lamp assembly (10) that comprises a reflector (12) for directing light in a given direction. An aperture (14) is formed in the reflector (12), substantially in the base thereof, and a thermally conductive post (16) is fitted in the aperture (14) and has a first surface (18) within the reflector and a second surface (20) outside of the reflector. The post (16) is preferably a metal such as copper. A single, side emitting, LED light source (22) is fixed to the first surface (18), preferably via an electrically insulating but thermally conductive member (23). A heat sink (24) is fixed to the second surface (20) and preferably is an inherent part thereof to insure good heat conductivity between the post (16) and the heat sink (24). Circuitry (26), which can be mounted on a printed circuit board, is associated with the LED source (22) for supplying power thereto. Suitable electrical connections, not shown, can be supplied from the circuitry (26) to the LED light source (22) via insulated wires running up the side of the post (16) or threaded through longitudinal apertures formed in the post (16). Alternatively, an electrically insulating material supplied with conductive traces can cover the post (16). The LED light source can include a cap having a secondary reflector thereon or the light source (22) can be covered by a dome-shaped, transparent element having sidewalls and a closed top having at least one metallized surface and including an optic.
摘要:
A solid-state light source (10) that is compatible with the existing sockets normally reserved for filamented lamps (100). The solid-state light source (10) comprises a hollow base (12) formed to mechanically and electrically adapt to an existing socket normally reserved for lamps (100). A sub-assembly (14) is adapted to cooperate with and fit into the hollow base (12). The sub-assembly (14) comprises a circuit board (16) with a plurality of solid-state light sources (18) mechanically and electrically connected to one side (20) of the circuit board. Two electrical contacts (22, 24) are positioned on the other side (26) of the circuit board for connection to an electrical circuit. A light pipe (28) covers the plurality of light sources (18) and extends away therefrom to a terminal end (30). A light radiator (34) is affixed to the terminal end (30) and a light-opaque shroud (33) surrounds the light pipe (32) to keep all of the light generated by the solid-state light source within the light pipe (32) to exit out of the light radiator (34).
摘要:
A vehicle headlamp (10) has a first light source (12) for illuminating an area forward of the light source (12). The first light source (12) is preferably a filamented tungsten halogen capsule or an arc discharge source. The first light source (12) is arrayed along a longitudinal axis (14) and emits substantially white light. A second light source (16) in the form of a plurality of light emitting diodes is arrayed about the first light source (12), and the second light source (16) emits light via an optic 42 for providing a daylight running light. Via the optic 42 light is emitted in a forward direction as well as toward the reflector to increase the lighting area.
摘要:
An LED light source has a housing having a base. A core projects from the base; is substantially cylindrical and is surrounded by tubes. The core and the base are arrayed about a longitudinal axis. A circuit board in the base supports LEDs. Each of the LEDs is positioned with one of the tubes in a one-to-one relationship at one end of the core. A heat sink is positioned in a heat-transferring relationship with the circuit board and a first reflector is attached to another end of the core. To direct the light emitted by the LEDs from the source to the reflector, the interior of the tubes can be plated with a highly reflective material. In one embodiment, each of the tubes is fitted with a light guide, each light guide extending from a position immediately above one of the LEDs to a position adjacent the reflector.
摘要:
A high-density LED array (10) capable of presenting a density of X LEDs/unit area has a first printed circuit board (12) having X/2 LEDs/area and X/2 apertures arrayed therewith. A second printed circuit board (22) is spaced from the first printed circuit board (12) and has X/2 LEDs 28/unit area. The LEDs (28) on the second printed circuit board are aligned with the apertures (20) in the first printed circuit board. Each of the LEDs (28) on the second printed circuit board (22) has an optical fiber (30) associated therewith and each of the light guides (30) extends through one of the apterures (20). Each of the mounted LEDs on the first printed circuit board can have an optical fiber associated therewith and the light guides can be bundled to direct light to a remote source.
摘要翻译:能够呈现X LED /单位面积的密度的高密度LED阵列(10)具有第一印刷电路板(12),其具有X / 2 LED /面积和与其排列的X / 2孔径。 第二印刷电路板(22)与第一印刷电路板(12)间隔开并且具有X / 2 LED 28 /单位面积。 第二印刷电路板上的LED(28)与第一印刷电路板中的孔(20)对齐。 第二印刷电路板(22)上的每个LED(28)具有与其相关联的光纤(30),并且每个光导(30)延伸穿过其中一个(20)。 第一印刷电路板上的每个安装的LED可以具有与之相关联的光纤,并且光束可以被捆扎以将光引导到远程源。
摘要:
A lamp component has a support with a base surrounded by an interior wall defining a cavity with a central axis. A plurality of LEDs are supported on the interior wall and generally aimed to direct light towards the central axis. A center piece has a first reflective surface shaped and positioned to intercept light received from the LEDs and reflect such received light generally in a direction parallel to the axis.