Light-emitting diode component
View Patent ↗An LED component includes, according to a first embodiment, a monolithic substrate, an array of LED chips disposed on a surface of the substrate, and an optical lens overlying the LED chips and having a lens base attached to the substrate, where the LED chips are positioned to provide a peak emission shifted from a perpendicular centerline of the lens base. The LED component includes, according to a second embodiment, a monolithic substrate, an array of LED chips disposed on a surface of the substrate, and an array of optical lenses, each optical lens overlying at least one of the LED chips and having a lens base attached to the substrate, where at least one of the LED chips is positioned to provide a peak emission shifted from a perpendicular centerline of the respective lens base.
1. A light emitting diode (LED) component comprising:
a monolithic substrate;
an array of LED chips disposed on a surface of the substrate; and
an optical lens overlying the LED chips and having a lens base attached to the substrate,
wherein the LED chips are positioned to provide a peak emission shifted from a perpendicular centerline of the lens base, at least one of the LED chips being mounted at a non-zero angle γ with respect to the surface of the substrate, the LED chip thereby comprising a tilt τ with respect to the perpendicular centerline.
2. The LED component of claim 1 wherein a center C A of the array is displaced from a center C L of the lens base by a displacement amount D.
3. The LED component of claim 2 wherein the displacement amount D lies between about 0.1 mm and 6.0 mm.
4. The LED component of claim 2 wherein a center C A of the array is displaced from a center C S of the surface of the substrate.
5. The LED component of claim 2 wherein a center C L of the lens base is displaced from a center C S of the surface of the substrate.
6. The LED component of claim 2 further comprising at least one additional array of LED chips disposed on the surface of the substrate, the additional array having a center C x displaced from the center C L of the lens base.
7. The LED component of claim 2 wherein the array of LED chips comprises a primary subsection and at least one additional subsection, the additional subsection being displaced from the primary subsection on the surface of the substrate,
wherein the center C A of the array is defined with respect to the primary subsection and the at least one additional subsection being positioned together.
8. The LED component of claim 1 wherein an amount of the non-zero angle γ lies between about 5° and about 35°, and an amount of the tilt t lies between about 55° and 85°.
9. The LED component of claim 1 wherein a plurality of the LED chips comprise the tilt τ.
10. The LED component of claim 9 , wherein the plurality includes from about 25% to about 75% of the LED chips in the array.
11. The LED component of claim 9 wherein an amount of the tilt τ is the same for each of the LED chips comprising the tilt τ.
12. The LED component of claim 9 wherein an amount of the tilt is different for at least one of the LED chips comprising the tilt τ.
13. The LED component of claim 1 wherein the optical lens comprises an asymmetric shape.
14. The LED component of claim 1 wherein the peak emission comprises a shift from the perpendicular centerline of between about 5 degrees and about 30 degrees.
15. The LED component of claim 14 wherein the peak emission comprises a shift from the perpendicular centerline of between about 10 degrees and about 20 degrees.
16. A light emitting diode (LED) component comprising:
a monolithic substrate; and
an array of individually unpackaged LED chips disposed on a surface of the substrate,
wherein at least one of the individually unpackaged LED chips is mounted at a non-zero angle γ with respect to the surface of the substrate, and
wherein a center C A of the array is displaced from a center C S of the surface of the substrate by a displacement amount D.
17. The LED component of claim 16 wherein the array is a disordered array.
18. A light emitting diode (LED) component comprising:
a monolithic substrate;
a first array and a second array of LED chips disposed on a surface of the substrate; and
an optical lens overlying the LED chips and having a lens base attached to the substrate,
wherein the LED chips are positioned to provide a peak emission shifted from a perpendicular centerline of the lens base,
wherein a center C A of the first array and a center C X of the second array are displaced from a center C L of the lens base.
19. A light emitting diode (LED) component comprising:
a monolithic substrate;
an array of LED chips disposed on a surface of the substrate; and
an optical lens overlying the LED chips and having a lens base attached to the substrate,
wherein the LED chips are positioned to provide a peak emission shifted from a perpendicular centerline of the lens base,
wherein a center C A of the array is displaced from a center C L of the lens base and from a center C S of the surface of the substrate.