Philips Lighting Holding B.v.

Signify Holding B.v.

Lin Wang

Yan Xiong

Chuan Yuan

Liwen Zhou

Qi Zhang

Jingxu Zhou

Xiuru Wang

Hao Jiang

Guyuan Chen

Haoran Zhang

Aibin Zou

Qianying Dai

Disclosed is a lighting device () comprising a mounting surface (); a lens () comprising a lens body () having an inner surface () encapsulating a cavity () and delimiting an entrance to said cavity, said entrance facing the mounting surface, the inner surface comprising a plurality of adjoining surface sections each defining a segment of the cavity, wherein each segment has a narrowing region distal to the entrance delimited by a curved portion () of the surface section delimiting said segment; and an elongate carrier () extending from the mounting surface into the cavity segments through the cavity entrance and comprising a plurality of solid state lighting elements () configured to emit light towards the lens body. Further disclosed is a luminaire comprising the said lighting device.

Lighting device and luminaire comprising the same

A lamp () for replacement of a HPS or HID lamp, is disclosed that comprises a support element () including a mounting shaft () extending therefrom, said mounting shaft being substantially parallel and having lateral displacement relative to a central axis of the lamp and a plurality of modules () each comprising a heat spreading element () wherein at least one module is mounted on the mounting shaft and is rotatable about the mounting shaft such that said at least one module can be pivoted between a first orientation in which the modules cooperate to define a closed structure; and a second orientation in which the at least one module is pivoted away from at least one neighboring module to define an opened structure. The lamp further comprises a plurality of sets of solid state lighting elements () wherein each set is mounted on an outer surface () of one of said modules, and a holder () for holding the support element (), wherein the holder comprises a lamp cap () to connect the lamp () to a power source, wherein the lamp cap is compatible with a socket for the HPS or HID lamp to be replaced. A luminaire including such a lamp is also disclosed.

Solid state lighting device and luminaire

Proposed is a device management apparatus and method for use in a device management network including a remote device management system. The device management apparatus comprises a communication interface () adapted to receive device management commands of differing nature from the remote device management system and to transmit a feedback signal to said remote device management system if requested by said device management commands, wherein the differing nature of a device management command comprises a differing level of power required to process the device management command, wherein the differing level of power required to process the device management command further relates to whether or not the device management command requires the communication interface () to transmit the feedback signal. The device management apparatus comprises a power supply () adapted to supply power to the communication interface () of the device management apparatus and further adapted to operate in a plurality of differing predefined operating modes. The device management apparatus further comprises a control unit () adapted to control the power supply to operate in one of the plurality of operating modes based on the nature of a received device management command, wherein the control unit () is adapted to: set the power supply () operating under respective predefined switching frequency or duty cycle in a first power mode or in a second power mode of the plurality of differing predefined operating modes.

Device management

Disclosed is a lighting device () including a lens () comprising an annular collimating structure () having a central axis of symmetry (), said structure comprising a light exit surface () and an intermediate region () in between an inner region () proximal to said axis and an outer region () distal to said axis, wherein one of the inner region and outer region consists of a single prism () extending from the light exit surface by a first height (h) and the other of the inner region and outer region comprises a plurality of prisms () extending from the light exit surface by a maximum second height (h), wherein the first height is at least the maximum second height and the intermediate region has an intermediate region surface () separated from the light exit surface by a maximum further height (h) that is smaller than the first height; and a plurality of solid state lighting elements () arranged in a circular pattern on a carrier surface () such that the solid state lighting elements are aligned with and facing the intermediate region surface (); and wherein the annular collimating structure is made of a material having a refractive index such that the first region is a refractive region and the single prism and the plurality of prisms each reflect light emitted by the solid state lighting elements towards the light exit surface. A luminaire including such a lighting device is also disclosed.

Lighting device and luminaire

Growing community of inventors

Eindhoven, Netherlands

Lin Wang