Sensor arrangements

1. A luminaire component for use in a luminaire, said component comprising:

(i) an LED module on a first printed circuit board (PCB), the first PCB having a front face on which the LED module is located;

(ii) a second PCB mounted forward of the front face of the first PCB and incorporating one or more data communication devices;

(iii) connection means adapted to connect the second PCB to the first PCB; and

(iv) a sensor arrangement incorporating one or more sensors;

further comprising a transmitter suitable for transmitting data obtained by the sensor arrangement.

2. The luminaire component of claim 1 , wherein the data communication device comprises a wireless communication device.

3. The luminaire component of claim 1 , further comprising a lens for focusing light emitted by the LED module.

4. The luminaire component of claim 1 , further comprising one or more antennae.

5. The luminaire component of claim 3 , wherein the sensor arrangement is located on or associated with the lens.

6. The luminaire component of claim 5 , wherein the lens incorporates an outwardly extending flange and the sensor arrangement is located in or on that flange.

7. The luminaire component of claim 1 , further comprising a collar.

8. The luminaire component of claim 7 , wherein the collar is non-circular in its configuration.

9. The luminaire component of claim 7 , wherein the collar supports the second PCB.

10. The luminaire component of claim 7 wherein the sensor arrangement is located on or associated with the collar.

11. The luminaire component of claim 10 wherein the sensor arrangement is located on or associated with an outer edge of the collar, furthest from the LED module.

12. The luminaire component of claim 10 , wherein the collar further comprises a transmitter assembly suitable for transmitting data obtained by the sensor arrangement.

13. The luminaire component of claim 1 , further comprising a second connection means adapted to connect the sensor arrangement to the second PCB.

14. The luminaire component of claim 7 , further comprising a lens for focusing light emitted by the LED module, wherein the collar supports the lens.

15. The luminaire component of claim 7 , further comprising one or more antennae, wherein the antenna is located on or associated with the collar.

16. The luminaire component of claim 7 , wherein one antenna comprises a first antenna suitable for creating a magnetic or electrical field suitable for powering the sensor arrangement.

17. The luminaire component of claim 16 , wherein one antenna comprises a second antenna suitable for converting the magnetic or electrical field from the first antenna into electrical power for powering the sensor arrangement.

18. The luminaire component of claim 17 , wherein the second antenna is located on or associated with the lens flange.

19. The luminaire component of claim 1 , wherein the second PCB comprises a flexible PCB.

20. The luminaire component of claim 19 , wherein the second PCB comprises an adhesive flexible PCB.

21. The luminaire component of claim 1 , wherein the connection means provides a power connection between the first PCB and the second PCB.

22. The luminaire component of claim 1 , wherein the connection means provides data connection(s) between the first PCB and the second PCB.

23. The luminaire component of claim 1 , wherein the connection means is selected from the group consisting of: a plurality of male and female pin connectors and one or more electrical contact points on or associated with the second PCB which are brought into contact with corresponding electrical contact points on the first PBC.

24. The luminaire component of claim 1 , further comprising a receiver suitable for receiving data from the sensor arrangement.

25. The luminaire incorporating a luminaire component of claim 1 .