Lighting apparatus

1 . A luminaire comprising:

a luminaire support frame; and

a lighting device connected to the luminaire support frame; wherein the lighting device comprises:

a housing comprising a connection interface configured to facilitate connection of the housing to the luminaire support frame and defining an axis of rotation, such that, when connected to the luminaire support frame, the housing is configured to permit rotation of the lighting device relative to the luminaire support frame about the axis of rotation;

a wireless communication interface coupled to the housing and configured to transmit or receive, via a wireless communication link, a wireless control signal; and

a control circuit coupled to the housing and configured to: control an operation of the lighting device; and transmit or receive a wireless control signal wireless to/from communication interface,

wherein the wireless communication interface comprises:

first and second antennas spaced apart from and on opposite sides of the axis of rotation;

wherein the luminaire support frame comprises a metal enclosure and wherein, in use, when the lighting device is at a tilted position relative to the metal enclosure, one of the first and second antennas is un-shielded by the metal enclosure.

2 . The luminaire of claim 1 , wherein the connection interface comprises first and second apertures located on opposite sides of the housing, and wherein the axis of rotation passes through the first and second apertures.

3 . The luminaire of claim 1 , wherein the connection interface comprises first and second projections located on opposite sides of the housing, and wherein the axis of rotation-intersects the first and second projections.

4 . The luminaire of claim 1 , wherein the axis of rotation lies in a lighting plane extending in a lighting direction of the lighting device, and wherein the first and second antennas are located on opposite sides of the lighting plane.

5 . The luminaire of claim 4 , wherein the axis of rotation lies in a light exit plane that is substantially perpendicular to the lighting plane, and wherein the first and second antennas intersect the light exit plane.

6 . The luminaire of claim 5 , wherein the housing-comprises a light exit aperture through which the lighting device is configured, in use, to emit light, the light exit aperture being substantially parallel to the light exit plane.

7 . The luminaire of claim 6 , further comprising a light diffuser configured to cover at least part of the light exit aperture and wherein the first and second antennas contact or pass through the light diffuser.

8 . The luminaire of claim 1 , wherein the control circuit is configured to determine a signal transmission/reception strength value for each of the first and second antennas, and to selectively employ either the first antenna or the second antenna for transmission/reception of the control signal based on the determined signal transmission/reception strength values.

9 . The luminaire of claim 1 , wherein the lighting device further comprises a truncated conical reflector configured, in use, to reflect light emitted from the lighting device, and wherein the first and second antennas are connected to opposite sides of the reflector.

10 . The luminaire of claim 1 , wherein the lighting device further comprises a heat sink, and wherein the first and second antennas are spaced apart from the heat sink by at least 2 mm, and preferably at least 4 mm.

11 . The luminaire of claim 1 , wherein the wireless control signal comprises a Radio Frequency, RF, control signal.

12 . The luminaire of claim 1 , further comprising a light source coupled to the housing,

and wherein the control circuit is configured to control emission of light by from light source.

13 . The luminaire of claim 12 , wherein the light source comprises a light emitting diode, LED.