SENSOR UNIT FOR LIGHT CONTROL

• US 20160295664A1
• Filed: 09/19/2014
• Published: 10/06/2016
• Est. Priority Date: 09/20/2013
• Status: Active Grant

• Current Assignee: Siteco GmbH (Prosperity Lamps & Components Limited)
• Original Assignee: OSRAM GmbH (Ams-Osram AG), Siteco Beleuchtungstechnik GmbH (Barclays PLC)
• Inventors: Loster, Matthias, Meyer, Clemens, Kraeuter, Gertrud
• Granted Patent: US 10,292,240 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 23/0464 the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
• CPC Class Codes: F21V 23/0471 the sensor detecting the proximity, the presence or the movement of an object or a person
• CPC Class Codes: F21Y 2101/00 Point-like light sources
• CPC Class Codes: F21Y 2107/10 on concave supports or substrates, e.g. on the inner side of bowl-shaped supports
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G01J 1/44 Electric circuits for command of an exposure part G03B7/02
• CPC Class Codes: H03K 17/94 characterised by the way in which the control signals are generated
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• CPC Class Codes: H05K 2201/09018 Rigid curved substrate
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]
• CPC Class Codes: H05K 2201/10121 Optical component, e.g. opto-electronic component
• CPC Class Codes: H05K 2201/10151 Sensor
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

Various embodiments may relate to a sensor unit having a plurality of sensor elements, the detection data of which are used for controlling an opto-electronic light source. According to various embodiments, the plurality of sensor elements are arranged on a substrate body, which is provided in the form of a molded circuit carrier made of a plastic material, and detect different regions and/or sizes.

Claims

1. A sensor unit for light control comprising

a substrate body, on which a plurality of sensor elements are arranged,

wherein the data detected by the plurality of sensor elements are provided for being fed to a control unit for controlling an optoelectronic light source,

wherein a first sensor element of the plurality of sensor elements has a first detection region for detecting a first detection variable and a second sensor element of the plurality of sensor elements has a second detection region for detecting a second detection variable, and

wherein at least one of

the first sensor element and the second sensor element are arranged on the substrate body in such a way that the first detection region and the second detection region at least partly do not overlap, and

the first detection variable and the second detection variable are different with regard to their type,

wherein the substrate body is provided as a primary-formed circuit carrier composed of a plastics material.

2. The sensor unit as claimed in claim 1, wherein the first sensor element and the second sensor element are arranged on the substrate body in such a way that not more than 50% of the first detection region overlaps the second detection region.

3. The sensor unit as claimed in claim 1, wherein the substrate body has a surface region that is at least partly convex, wherein at least one of the first sensor element and the second sensor element is arranged in the at least partly convex surface region.

4. The sensor unit as claimed in claim 1, wherein at least one of the first sensor element and the second sensor element is designed to detect a movement of an object moving relative to the respective sensor element.

5. The sensor unit as claimed in claim 1, wherein the first sensor element is designed to measure at least one of an absolute brightness and a change in brightness.

6. The sensor unit as claimed in claim 1, wherein the optoelectronic light source is arranged on the substrate body and designed to emit light depending on a value detected by the sensor elements.

7. The sensor unit as claimed in claim 6, wherein the optoelectronic light source is arranged on the surface of the substrate body in such a way that part of the light emitted by the optoelectronic light source is incident on the surface of the substrate body.

8. The sensor unit as claimed in claim 7, wherein a second optoelectronic light source is arranged on the substrate body, specifically in that region of the surface on which part of the light emitted by the first light source is incident directly.

9. The sensor unit as claimed in claim 1, wherein the substrate body is embodied in an integral fashion.

10. The sensor unit as claimed in claim 1, wherein the substrate body is an injection-molded circuit carrier.

11. The sensor unit (1) as claimed in claim 6, wherein at least one surface region of the substrate body that is arranged oppositely to a surface region carrying the optoelectronic light source is provided as an exterior surface of a luminaire.

13. The sensor unit as claimed in claim 1, wherein at least two sensor units are configured as a set, wherein in each case the first sensor element and the second sensor element are arranged on the substrate body in such a way that the first detection region and the second detection region at least partly do not overlap, and which in each case have a corresponding total detection region resulting, per sensor unit, from the totality of the respective detection regions, wherein the substrate bodies of the at least two sensor units of the set are structurally identical to one another, but the at least two sensor units differ in the arrangement of the respective plurality of sensor elements in such a way that the at least two sensor units differ with regard to their respective total detection region.

12. (canceled)

14. A method for producing a sensor unit, the method comprising,

providing a substrate body, on which a plurality of sensor elements are arranged, wherein the data detected by the plurality of sensor elements are provided for being fed to a control unit for controlling an optoelectronic light source,

wherein a first sensor element of the plurality of sensor elements has a first detection region for detecting a first detection variable and a second sensor element of the plurality of sensor elements has a second detection region for detecting a second detection variable, and wherein at least one of

the first sensor element and the second sensor element are arranged on the substrate body in such a way that the first detection region and the second detection region at least partly do not overlap, and

the first detection variable and the second detection variable are different with regard to their type,

wherein the substrate body is primary formed from a plastics material.

15. (canceled)