Elongated lighting device with adhesively affixed reflector and lighting element carrier, and method of assembly
View Patent ↗A lighting device includes an elongate housing with a light exit window, a carrier assembly disposed within the housing and having a plurality of SSL elements, a reflector having a plurality of apertures and positioned between the housing and the carrier assembly, and an adhesive extending through the apertures and fixing the carrier assembly and the reflector to the housing. A method of assembling the lighting device and of a luminaire-including the lighting device are also disclosed.
1. A lighting device comprising:
an elongate housing having a light exit window,
a carrier assembly within the housing comprising a plurality of SSL elements;
a reflector between the housing and the carrier assembly, having a plurality of apertures between the housing and the carrier assembly; and
an adhesive affixing the reflector to the housing, the adhesive also extending through the apertures and further affixing the carrier assembly to the housing.
2. A lighting device according to claim 1 , wherein the housing comprises glass.
3. A lighting device according to claim 1 , wherein the reflector is a foil or a paper.
4. A lighting device according to according to claim 1 , wherein the reflector comprises a plastics material.
5. A lighting device according to claim 1 , wherein the reflector comprises sheet metal.
6. A lighting device according to claim 1 , wherein the reflector comprises a reflective coating.
7. A lighting device according to claim 1 , wherein at least a portion of the carrier assembly is shaped to match the inner surface of the housing.
8. A lighting device according to claim 1 , wherein the carrier assembly comprises at least one of a PCB and a heat sink.
9. A luminaire comprising the lighting device of claim 1 arranged within a housing.
10. A lighting device according to claim 1 , wherein the reflector is dimensioned to reflect light emitted by said SSL elements under emission angles within a first range of 100° or more.
11. A lighting device according to claim 10 , wherein the first range is 180° or more.
12. A lighting device according to claim 1 , wherein each of the plurality of apertures has a regular shape.
13. A lighting device according to claim 12 , wherein the plurality of apertures forms an array.
14. A method of assembling a lighting device, comprising:
providing a carrier assembly comprising a plurality of SSL elements;
providing a reflector having a plurality of apertures therein;
applying adhesive to at least one of the carrier assembly and the reflector; and
forcing the carrier assembly and a housing together to affix the carrier assembly and the reflector to the housing,
wherein the reflector is between the carrier assembly and the housing;
the apertures of the reflector are between the housing and the carrier assembly; and
the adhesive is forced through the apertures to affix the carrier assembly to the housing.
15. The method according to claim 14 , wherein the reflector is placed on the carrier assembly before the adhesive is applied.