Abstract:
Various embodiments may relate to an optical unit for a light-emitting structure, a light-emitting structure, and a light box comprising the light-emitting structure. The optical unit includes a body and a light-blocking structure, wherein the body includes at least one reflective surface, wherein the light-blocking structure includes a first light-blocking structure and a second light-blocking structure, wherein the first light-blocking structure is formed in one piece with the body, and the second light-blocking structure is arranged in the first light-blocking structure, wherein the first light-blocking structure is arranged to at least partially surround the reflective surface, to block the light leaks from the reflective surface by the second light-blocking structure.
Abstract:
Various embodiments relate to a lens for an illumination device and an illumination device including the lens, wherein the lens has an incident surface and an exiting surface, and the lens is designed in rotation symmetry, wherein, the incident surface includes a central recessed portion which is recessed towards the exiting surface and through which the rotation axis of the lens passes and a circumferential protrusion portion which protrudes in a direction away from the exiting surface and encompasses the central recessed portion.
Abstract:
A LED lighting device is disclosed, which includes a LED lighting source, a printed circuit board, a heat sink and a transparent cover. The LED lighting source is provided on the printed circuit board, and the cover is attached to the heat sink for protecting the LED lighting source and the printed circuit board. The LED lighting device further includes a rivet made of plastics, which is used to fix the printed circuit board to the heat sink.
Abstract:
Various embodiments may relate to a lighting device, including an electronic device housing, an electrical connecting part mounted at one side of the electronic device housing, a heat sink mounted at the other side of the electronic device housing, and a plurality of light sources arranged on the heat sink. The heat sink is made of a transparent material and forms at least a part of a light emergent surface for the light from the light sources.
Abstract:
Various embodiments may relate to an optical unit for a light-emitting structure, a light-emitting structure, and a light box comprising the light-emitting structure. The optical unit includes a body and a light-blocking structure, wherein the body includes at least one reflective surface, wherein the light-blocking structure includes a first light-blocking structure and a second light-blocking structure, wherein the first light-blocking structure is formed in one piece with the body, and the second light-blocking structure is arranged in the first light-blocking structure, wherein the first light-blocking structure is arranged to at least partially surround the reflective surface, to block the light leaks from the reflective surface by the second light-blocking structure.
Abstract:
A LED lighting device is disclosed, which includes a LED lighting source, a printed circuit board, a heat sink and a transparent cover. The LED lighting source is provided on the printed circuit board, and the cover is attached to the heat sink for protecting the LED lighting source and the printed circuit board. The LED lighting device further includes a rivet made of plastics, which is used to fix the printed circuit board to the heat sink.