LED device holder, LED lighting system, and method of manufacture
An LED device holder, an LED lighting system and a method of manufacturing an LED lighting system are described herein. An LED lighting system includes a holder defining an aperture. The aperture has a perimeter and a fillet adjacent the perimeter. The fillet has a radius greater than or equal to 2.0 mm and less than or equal to 4.6 mm. An LED array is mechanically coupled to the holder. The LED array has a light emitting surface exposed through the aperture.
1. A light-emitting diode (LED) lighting system comprising:
a holder comprising:
an aperture having a perimeter, and
a fillet adjacent the perimeter of the aperture, the fillet having a radius greater than or equal to 2.0 mm and less than or equal to 4.6 mm; and
an LED array mechanically coupled to the holder, the LED array having a light emitting area exposed through the aperture.
2. The LED lighting system of claim 1 , wherein the LED array is a chip on board (COB) LED device.
3. The LED lighting system of claim 2 , wherein:
the COB LED device comprises the LED array on a substrate,
the LED array forms the light emitting area, and
the holder is disposed over the COB LED device such that the light emitting area aligns with the aperture.
4. The LED lighting system of claim 3 , wherein the aperture and the light emitting area are circular shaped.
5. The LED lighting system of claim 4 , wherein a diameter of the light emitting area is greater than or equal to 15.0 mm and less than or equal to 32.0 mm, and the radius of the aperture is 4.6 mm.
6. The LED lighting system of claim 4 , wherein a diameter of the light emitting area is greater than or equal to 6.0 mm and less than or equal to 15.0 mm.
7. The LED lighting system of claim 1 , further comprising a reflector mechanically coupled to the holder over the LED array.
8. The LED lighting system of claim 7 , wherein the reflector has an opening aligned with the aperture and curved sidewalls that extend from the opening.
9. A light emitting diode (LED) device holder comprising:
an outer section; and
an inner section mechanically coupled to the outer section, the inner section defining an aperture having a perimeter, a portion of the inner section adjacent the aperture having a fillet shape with a radius greater than or equal to 2.0 mm and less than or equal to 4.6 mm.
10. The LED device holder of claim 9 , further comprising a bevel portion that mechanically couples the outer section to the inner section.
11. The LED device holder of claim 10 , wherein the bevel portion comprises at least one slot for receiving a reflector.
12. The LED device holder of claim 9 , wherein the outer section has an outer wall and a top surface, the inner section has a top surface and a bottom surface, and the top surface of the inner section is lower than the top surface of the outer section.
13. The LED device holder of claim 12 , wherein the bottom surface of the inner section defines the aperture.
14. The LED device holder of claim 9 , further comprising a plurality of mounts each having an opening configured to accommodate a mechanical fastener.
15. The LED device holder of claim 9 , wherein a diameter of the aperture is greater than or equal to 15.0 mm and less than or equal to 32.0 mm and the radius of the fillet is 4.6 mm.
16. The LED device holder of claim 9 , wherein a diameter of the aperture is greater than or equal to 6.0 mm and less than or equal to 15.0 mm.
17. A method of manufacturing a light emitting diode (LED) lighting system, the method comprising:
determining at least one optical property of a material;
generating a model of an LED device holder comprising an aperture having a perimeter and a fillet adjacent the perimeter of the aperture, the fillet having a radius;
using the at least one optical property and the generated model to generate a graph of system efficiency for increasing values of the radius of the fillet;
selecting a value from the graph that corresponds to the most optimal system efficiency; and
attaching an LED device holder formed from the material and having a fillet with a radius of the selected value to an LED array.
18. The method of claim 17 , further comprising displaying the generated graph on a display.
19. The method of claim 18 , wherein the selecting comprises one of a user selecting the value corresponding to a point on the graph where the selected value of the radius intersects with a maximum system efficiency and a computer system selecting the value based on user entered or pre-programmed criteria.
20. The method of claim 17 , wherein the at least one optical property is one of reflectivity and refractivity.