SPOTLIGHT LED MODULE AND LIGHT MODULE

• US 20150282272A1
• Filed: 03/20/2015
• Published: 10/01/2015
• Est. Priority Date: 03/27/2014
• Status: Abandoned Application

• Current Assignee: Tridonic GmbH & Co. KG (Zumtobel Group AG)
• Original Assignee: Tridonic GmbH & Co. KG (Zumtobel Group AG)
• Inventors: BORSOI, Giulio
• Application Number:
  US14/663,939
• Publication Number:
  US 20150282272A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/62 using mixing chambers, e.g. housings with reflective walls
• CPC Class Codes: G01S 13/04 Systems determining presence of a target based on relative movement of target G01S13/56
• CPC Class Codes: G01S 13/86 Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A spotlight LED module (SLE) and a light module with at least one LED is provided. The SLE includes a light emitting surface and a reflector or a reflector connection surrounding the light emitting surface. The SLE also includes an integrated antenna for radar motion sensing. A light module including at least one LED and a radar-based motion sensor is thereby achieved. A coverage of the radar-based motion sensor corresponds essentially to the light coverage of the light module.

Claims

1. A spotlight LED module (SLE) (1) comprising

a light emitting surface (2) comprising at least one LED,

a reflector (3) or a reflector connection surrounding the light emitting surface (2), and

an integrated antenna (4a, 4b) for radar motion sensing.

2. The SLE (1) according to claim 1, wherein the integrated antenna and the light emitting surface (2) are provided on the same printed circuit board (PCB) (7).

3. The SLE (1) according to claim 1, wherein the reflector (3) or reflector connection surround the integrated antenna (4a, 4b).

4. The SLE (1) according to claim 1, wherein the integrated antenna (4a, 4a) is connected, preferably via a microstrip line (5), with radar electronics (9) or a connector (6) for connecting radar electronics.

5. The SLE (1) according to claim 1, wherein the integrated antenna (4a, 4b) is a monopole antenna (4a).

6. The SLE (1) according to claim 5, wherein the monopole antenna (4a) has a length of about ⅛

to 1 of a wavelength used for the radar motion sensing.

7. The SLE (1) according to claim 5, wherein the monopole antenna (4a) is centered in the light emitting surface (2) or is placed adjacent the outer periphery of the light emitting surface (2).

8. The SLE (1) according to claim 1, wherein the integrated antenna (4a, 4b) is a patch antenna, realized by at least one microstrip line.

9. The SLE (1) according to claim 8, wherein the integrated antenna (4a, 4b) is a ring antenna (4b).

10. The SLE (1) according to claim 9, wherein the ring antenna (4b) surrounds the light emitting surface (2).

11. The SLE (1) according to claim 9, wherein the ring antenna (4b) is connected along its entire inner circumference to a ground plane.

12. The SLE (1) according to claim 10, wherein an inner diameter of the ring antenna (4b) is larger by about 0 to 10 mm than the diameter of the light emitting surface (2).

13. The SLE (1) according to claim 9, wherein a width of the ring antenna (4b) is about 1 to 12 mm.

14. The SLE (1) according to claim 9, wherein the ring antenna (4b) comprises elements, which alter its ring-shape.

15. A light module comprising

at least one LED,

a radar-based motion sensor, and

wherein a coverage of the radar based motion sensor corresponds essentially to the light coverage of the light module.