Methods and systems for thermal management of one or more LEDs are disclosed. One or more LEDs may be coupled with an external layer of a thermal ground plane according to some embodiments described herein. For example, the one or more LEDs may be electrically coupled with a circuit carrier with one or more electrically conductive traces etched therein prior to coupling with the thermal ground plane. The thermal ground plane may be charged with a working fluid and/or hermetically sealed after being coupled with the LED.

A headlight, especially a motor vehicle headlight, comprises a bushing (1) with a translucent cover (2) forming an inner chamber (3) including a light source (4), an optical system (5) for guiding the light beam from the light source, a cooling body having the light source mounted thereon and fitted with cooling elements (61) to extract heat from the heat source, and a cooling channel (7) for passage of the cooling media for heat extraction from the cooling elements. The cooling channel is closed with respect to the chamber to prevent the cooling media from passing through the chamber outside the cooling channel The body forms the wall of a part of the cooling channel, and the cooling elements face the inner space of the cooling channel. The part of the cooling channel whose wall comprises the cooling body is arranged in a controlled movable way in the inner chamber.

A solar spectrum-like LED structure, comprising a negative electrode for a three-dimensional integrated package, and a plurality of LED chips and resistors. The negative electrode for a three-dimensional integrated package is a three-dimensional structure comprising a plurality of planes. The plurality of LED chips is installed on the plurality of planes of the negative electrode for the three-dimensional integrated package. Light of different colors emitted by the plurality of LED chips forms a plane light source or a cone light source after being well mixed at an intersection point, thus simulating a solar spectrum. The invention enables manufacturing of a solar spectrum-like LED fluorescent lamp suitable for generating different bands of spectrums for the survival and metabolism of various organisms. In addition, the solar spectrum-like LED fluorescent lamp has a good color-rendering property and visual effect, and can be widely applied in the fields of general lighting, agriculture, animal husbandry and new biological energy sources.

An LED array is mounted on a base that is thermally coupled to a heat spreader. At least one aperture is provided between the support area and an edge of the heat spreader. The heat spreader may be coupled to a thermal pad which has sufficient thermal conductivity and is sufficiently thin to allow the thermal resistivity between the heat spreader and a corresponding heat sink to be below a predetermined value.

Various embodiments may relate to a lens for an illumination device. The lens includes a bottom wall, a top wall, and a circumferential wall. The circumferential wall connects the bottom wall and the top wall. A plurality of regions of the bottom wall respectively arch towards the top wall to define at least one first accommodation cavity having an inner wall as a first incident surface, and at least one second accommodation cavity having an inner wall as a second incident surface. The first and second incident surfaces are designed as different curved surfaces for receiving first incident light and second incident light, respectively. Various embodiments further relate to an illumination device including the lens.

A lamp, which has a light source having several light-emitting elements, in particular in the form of LEDs. The lamp has first passage openings on a first side next to the light source and second passage openings on a second side next to the light source. The passage openings are designed for an air flow for cooling the light source. The lamp also has a first air-conducting surface on the first side next to the first passage openings and below the light source and a second air-conducting surface on the second side next to the second passage openings and below the light source, wherein the two air-conducting surfaces are designed in such a way that the two air-conducting surfaces form an air incidence region that expands away from the light source.

A doubly-sealed waterproof floodlight includes a heat dissipating portion, a lighting portion coupled to the bottom end of the heat dissipating portion, and a cover filled and coated with a sealing material, doubly-sealed, and integrally coupled to the heat dissipating portion. The heat dissipating portion includes a sealing portion formed on a side end of the heat dissipation portion, coated with the sealing material, and coupled to the cover. The cover includes a coupling portion formed on the top end of a side surface thereof. The coupling portion includes a sealing groove into which sealing material is filled for adhering and coupling the heat dissipating portion, a protruding support potion extending from the sealing groove, and a bottom surface portion which is flatly formed at a position lower than the protruding support portion, and in which the sealing material coated on the sealing portion is filled.

An article of illuminated headwear having a top portion, a left side, and a right side, the article of headwear including a controllable power source, a lamp disposed on the top portion of the article of headwear, the lamp in electrical communication with the power source, a first lens configured to cast white light in a 360 degree pattern around the lamp, a second lens disposed on the right side of the headwear, the second lens configured to cast light of a first color to the right side of the headwear, and a third lens disposed on the left side of the headwear, the third lens configured to cast light of a second color to the left side of the headwear.

An LED lamp A1 includes a plurality of LED modules 1 and a substrate 2 on which the LED modules 1 are mounted in a row. A light guide 3 covering the LED modules 1 is provided on the substrate 2. The light guide 3 is held in close contact with each of the LED modules. With this arrangement, a proper amount of light is obtained with the use of a smaller number of LED modules 1 or with less power consumption.

A luminaire includes a housing having a rear section, a middle section removably connected to the rear section and, a front section removably connected to the middle section. A control component is positioned in the rear section. A light emitter assembly is operably connected to the control component.