Philips Lighting Holding B.v.

Qingqing Jiang

Yan Xiong

Chuan Yuan

Hongxia Li

Haoyang Shi

Yemei He

Lin Nan Li

Shi Dong Lin

A lighting device () comprising a housing () comprising a polymer material, the housing including an elongated hollow neck portion () and a collar portion () arranged at an end of the neck portion. The collar portion includes an essentially annular surface () surrounding the end of the neck portion peripherally. The collar portion has a metalized surface. The surface is structured into a plurality of electrically conductive pads () and the pads are electrically isolated from each other. A plurality of light emitting elements () are arranged on the collar portion of the housing. Each of the light emitting elements has a first terminal () electrically connected to a first electrically conductive pad () and a second terminal () electrically connected to a second electrically conductive pad (). The collar portion is directly in contact with the surroundings, promoting an improved heat transfer from the light emitting elements. The lighting device further comprises an annular lens () arranged to cover the collar portion and configured to refract light from the light emitting elements.

Lighting device with an improved housing

Disclosed is a lighting device () comprising a heat sink () having an annular portion () including an annular surface portion () delimiting a central aperture (), said annular surface portion () carrying a plurality of SSL elements (); and a bulbous member () cooperating with the heat sink (), said bulbous member () having a first surface portion () opposite said SSL elements () and a second surface portion () extending from said first surface portion () through said central aperture (); wherein the bulbous member () is used as a light guide member for light emitted by the plurality of SSL elements (). A luminaire including such a lighting device () is also disclosed.

Lighting device and luminaire

A lighting device or a lamp bulb () comprises at least one light source () and a driver assembly (), said driver assembly comprising driver electronics; wherein during operation of the light source, a distance between an optical axis () of the lighting device and a heat flow of the lighting device is less than a distance between the optical axis () and a component of the driver electronics having the highest temperature sensitivity.

Lighting device

Growing community of inventors

Shanghai, China

Qingqing Jiang