Osram Gmbh

Ledvance Gmbh

Yusheng Ming

Hao Li

Bo Li

Qihui Zhang

HongWei Zhang

Hua Wang

Jing Lin

Yaojun Feng

Yuanyuan He

Xiaomian Chen

Zhian Li

Tingming Liu

Dirk Buchhauser

Hui Gui

Haiping Yuan

Anmiao Li

Shengmei Zheng

Peng Chen

Aiai Li

Zhijun Ou

Chuanpeng Zhong

Kongyi Wu

Guangwei Chi

Jianghui Yang

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.

LED lighting device and manufacturing method thereof

A light-emitting device may include a substrate, a light source arranged on the substrate, and a cover part spaced a certain distance apart from the light source and transmitting light emitted from the light source to outside. The cover part includes a first part, converting wavelengths of a part of light in light emitted from the light source and having different thicknesses at least in two different light-emitting directions of the light source, and a second part, having different thicknesses in the two different light-emitting directions to compensate the thicknesses of the first part.

Light-emitting device and illuminating apparatus comprising the light-emitting device

Various embodiments may relate to a lens for an illumination device, including an incident surface, an emergent surface, and a reflective surface connected between the incident surface and the emergent surface. The lens includes a first axis as an optical axis of the lens, a second axis perpendicular to the first axis and extending in a longitudinal direction of the lens, the first axis and the second axis defining a symmetrical surface of the lens, and a third axis perpendicular to the symmetrical surface, a first portion of light from a light source is incident upon the incident surface, refracted by the emergent surface, and then emerges to form a first light beam, and a second portion of light from the light source is incident upon the incident surface, reflected by the reflective surface, refracted by the emergent surface, and then emerges to form a second light beam.

Lens and illumination device including the lens

A lens may include a light incident surface, a first light emergent surface and side surfaces joining the light incident surface and the first light emergent surface. The light incident surface defines a space for accommodating light sources. The side surface includes at least one total-internal reflection surface and at least one second light emergent surface, a first part of light passing through the light incident surface is refracted by the first light emergent surface and emerges to generate first emergent light, a second part of light passing through the light incident surface is reflected by the total-internal reflection surfaces to the first light emergent surface and is refracted by the first light emergent surface and emerges to generate second light emergent light, and a third part of light passing through the light incident surface is refracted by the second light emergent surfaces and emerges to generate third emergent light.

Lens for LED illumination

An LED illuminating device includes a printed circuit board, at least one LED chip group arranged on the printed circuit board, and a lens assembly, wherein the LED illuminating device further includes a reflector provided between the LED chip group and the lens assembly, wherein the reflector is configured to diffusely reflect light from the LED chip group so that the light is uniformized and emerges in a direction of the lens assembly.

LED illuminating device

An LED lighting assembly may include a printed circuit board with an LED chip, and a heat sink thermally conducted with the printed circuit board, wherein the LED lighting assembly further comprises a light guide body configured as a bulb, the light guide body having an end surface as a light incidence surface of light from the LED chip, an outer surface as a light emergent surface and an inner surface, wherein the inner surface is structured so as to form a reflecting surface, reflecting at least part of light from the end surface to the outer surface.

LED lighting assembly and an LED retrofit lamp having the LED lighting assembly

Growing community of inventors

Shenzhen, China

Yusheng Ming