Halo lighting unit
A light unit includes a housing having a central symmetry axis; a support located in the housing; a main lamp located axially on the support; and a multiplicity of secondary lamps located on the support and arranged in an array around the main lamp; a front casing defining a central aperture to which light from the main lamp passes to the exterior in use, the front casing preventing light from the secondary array from entering the central aperture; the front casing and housing defining a light guide channel; a light guide located in the channel, the light guide having a first end comprising a light inlet proximate the array of secondary lamps and a second end comprising a light outlet proximate a periphery of the housing.
1. A light unit, comprising:
a housing having a central symmetry axis;
a support located in the housing;
a main lamp located axially on the support; and
a multiplicity of secondary lamps located on the support and arranged in an array around the main lamp;
a front casing defining a central aperture to which light from the main lamp passes to the exterior in use, the front casing preventing light from the secondary array from entering the central aperture;
the front casing and housing defining a light guide channel;
a light guide located in the channel, the light guide having a first end comprising a light inlet proximate the array of secondary lamps and a second end comprising a light outlet proximate a periphery of the housing.
2. A light unit as claimed in claim 1 , wherein the light guide configured to deflect light from a direction parallel to the central axis at the light inlet to a direction away from the central axis at the light outlet.
3. A light unit as claimed in claim 2 , wherein the light outlet is located in a plain normal to central axis.
4. A light unit as claimed in claim 1 , wherein the light guide is rotationally symmetrical about the central symmetry axis.
5. A light unit as claimed in claim 4 , wherein the light guide outlet is directed radially outwardly of the housing.
6. A light unit as claimed in claim 1 , wherein the light guide is annular having a first portion extending axially from the light inlet and a second portion extending radially to the light outlet.
7. A light unit as claimed in claim 1 , further comprising an annular collar located above the light guide channel, the collar having an axial aperture communicating with the central aperture and the collar overlying the light guide.
8. A light unit as claimed in claim 1 , wherein the light guide is composed of acrylic polymer.
9. A light unit as claimed in claim 1 , wherein the inlet and outlet surfaces of the light guide are polished and the radially inner surface is textured.
10. A light unit as claimed in claim 1 , wherein the main LED has a dual colour of 2700K and 6500K.
11. A light unit as claimed in claim 1 , wherein the secondary lamps provide a circular array of RBG or alternating 2700K and 6500K LEDs.