Lighting device with wireless control element

Patent metadata

Field	Value
Publication number	US-10746385-B2
Application number	US-201615741510-A
Country	US
Kind code	B2
Filing date	Jun 7, 2016
Priority date	Jul 6, 2015
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

The invention provides a lighting device, comprising a light exit chamber (14), delimited by a light exit body (16), a plurality of light sources (20), positioned within the light exit chamber (14), and arranged to emit light in the direction of the light exit body (16), an optical processing element, adapted to process the light emitted from the plurality of light sources (20), and a transparent antenna element (22), extending into the light exit chamber (14) and positioned relative to the plurality of light sources (20) such that each light source is arranged to transmit light toward the antenna element, wherein said transparent antenna element (22) is separate from the optical processing elements, wherein the transparent antenna element (22) being transparent for the light emitted by the plurality of light sources (20), and the antenna element (22) comprises: a transparent conductive material that is self-supporting.

First claim

The invention claimed is:

1. A lighting device, comprising
a light exit chamber, delimited by a light exit body;
a plurality of light sources, positioned within the light exit chamber, and arranged to emit light in the direction of the light exit body;
at least one optical processing element, adapted to process the light emitted from the plurality of light sources; and
a transparent antenna element, extending into the light exit chamber and positioned relative to the plurality of light sources such that each light source is arranged to transmit light toward the antenna element, wherein said transparent antenna element is separate from each of the optical processing elements, wherein the transparent antenna element being transparent for the light emitted by the plurality of light sources, and the antenna element comprises:
a transparent conductive material that is self-supporting;
wherein the antenna element is shaped and/or positioned such that each light source emits light incident on the antenna element and for each light source, substantially equal amounts of light are incident on the antenna element.

2. A lighting device as claimed in claim 1 , wherein the center of the antenna element is placed around the center of the plurality of light sources, or
a symmetry axis of the antenna element coincides with a symmetry axis of the plurality of light sources.

3. A lighting device as claimed claim 1 , wherein the plurality of light sources is adapted to emit light of different colours.

4. A lighting device as claimed in claim 1 , wherein the antenna element is manufactured by:
coating/depositing/printing a transparent conductive material in a substrate into a substantial thickness; and
removing the substrate.

5. A lighting device as claimed in claim 1 , wherein the transparent antenna element have a transmittance of greater than or equal to 80%.

6. A lighting device as claimed in claim 1 , wherein the antenna element has a total length equal to or greater than a quarter of the wavelength of the radiation that the antenna element is adapted to transceive.

7. A lighting device as claimed in claim 1 , wherein at least one of the optical processing elements is preferably integrated with the light exit body and is adapted to alter the distribution and/or propagation direction of light propagating through the antenna element.

8. A lighting device as claimed in claim 1 , further comprising a control module for controlling the plurality of light sources, wherein the antenna element is operatively coupled to the control module for receiving control signals for controlling the plurality of light sources.

9. A lighting control system, comprising:
a lighting device as claimed in claim 6 ; and
a control device comprising a processor adapted to generate the control signals and a control antenna communicatively coupled to the processor and adapted to transmit the control signals to the antenna element of the lighting device.

10. A luminaire comprising a lighting device of claim 1 .

11. A lighting device, comprising
a light exit chamber, delimited by a light exit body;
a plurality of light sources, positioned within the light exit chamber, and arranged to emit light in the direction of the light exit body;
at least one optical processing element, adapted to process the light emitted from the plurality of light sources; and
a transparent antenna element, extending into the light exit chamber and positioned relative to the plurality of light sources such that each light source is arranged to transmit light toward the antenna element, wherein said transparent antenna element is separate from each of the optical processing elements, wherein the transparent antenna element being transparent for the light emitted by the plurality of light sources, and the antenna element comprises:
a transparent conductive material that is self-supporting wherein the lighting device comprises a carrier at the base of the light exit chamber carrying the light sources, and wherein the antenna element is mounted on the carrier and extends from said carrier in a plane perpendicular to a major surface of the carrier carrying the light sources.

12. A lighting device as claimed in claim 11 , wherein the antenna element is straight, or the antenna element extends between a first point on the carrier and a second point on the carrier.

13. A lighting device as claimed in claim 12 , wherein the antenna element is arc shaped, L shaped, or hook shaped.

14. A lighting device as claimed in claim 11 , wherein the antenna element comprises a first portion extending from the carrier in said plane, and a second portion which extends from the first portion along a further plane.

Assignees

• Signify Holding Bv

Inventors

• He Yemei
• Gu Wei
• Huang Meng
• Zhu Liyi
• Xu Yunfei
• Qian Yimeng

Classifications

• H05B47/195

  the transmission using visible or infrared light · CPC title

• H05B47/19

  via wireless transmission · CPC title

• F21K9/232 Primary

  specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb · CPC title

• F21V23/003 Primary

  the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array · CPC title

• F21V19/00

  Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R33/00 {; special means for attaching candle to candle holder F21V35/003}) · CPC title