LED package with increased feature sizes
First Claim
Patent Images
1. A light emitter package, comprising:
- a submount;
a light emitter chip mounted on said submount;
a lens over said light emitter chip, the ratio of the width of said light emitter chip to the width of said lens in a given direction being 0.5 or greater;
wherein the ratio of the width of said light emitter chip to the width of said submount in a given direction is 0.35 or more.
4 Assignments
0 Petitions
Accused Products
Abstract
A light emitter package having increased feature sizes for improved luminous flux and efficacy. An emitter chip is disposed on a submount with a lens that covers the emitter chip. In some cases, the ratio of the width of the light emitter chip to the width of said lens in a given direction is 0.5 or greater. Increased feature sizes allow the package to emit light more efficiently. Some packages include submounts having square dimensions greater than 3.5 mm used in conjunction with larger emitter chips. Materials having higher thermal conductivities are used to fabricate the submounts, providing the package with better thermal management.
-
Citations
77 Claims
-
1. A light emitter package, comprising:
-
a submount; a light emitter chip mounted on said submount; a lens over said light emitter chip, the ratio of the width of said light emitter chip to the width of said lens in a given direction being 0.5 or greater; wherein the ratio of the width of said light emitter chip to the width of said submount in a given direction is 0.35 or more. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A light emitting diode (LED) package, comprising:
-
a submount comprising a top and bottom surface; a plurality of top electrically and thermally conductive elements on said top surface of said submount; an LED chip on one of said top elements, said top elements configured to spread heat from said LED chip across the majority of said submount top surface; a bottom thermally conductive element on said bottom surface not in electrical contact with said top elements and configured to conduct heat from said submount; and a lens over said LED chip; wherein the ratio of the width of said LED chip to the width of said lens in a given direction is 0.5 or greater; wherein the ratio of the width of said LED chip to the width of said submount in a given direction is 0.35 or more. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
-
-
49. A light emitter package, comprising:
-
a submount comprising aluminum nitride (AlN); a light emitter chip on said submount, said light emitter chip emitting light comprising an approximate average wavelength in the range of 430-460 nm; a lens on said light emitter chip;
wherein the ratio of the width of said light emitter chip to the width of said lens in a given direction is 0.5 or greater;wherein the ratio of the width of said light emitter chip to the width of said submount in a given direction is 0.35 or more.
-
-
50. A light emitter package, comprising:
-
a single light emitting diode (LED) chip; a submount comprising dimensions of 3.5 mm square or larger; a molded lens on said LED chip on said submount, such that a portion of said molded lens and LED chip are mounted on the same planar surface of said submount wherein the ratio of the width of said light emitter chip to the width of said lens in a given direction is 0.5 or greater and wherein the ratio of the width of said light emitter chip to the width of said submount in a given direction is 0.35 or more. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
-
-
62. A light emitter package, comprising:
-
a light emitter chip; a submount comprising a material comprising a thermal conductivity of 30 W/m·
K or higher;a molded lens on said light emitter chip on said submount, such that a portion of said molded lens and said light emitter chip are mounted on the same planar surface of said submount wherein the ratio of the width of said light emitter chip to the width of said lens in a given direction is 0.5 or greater and wherein the ratio of the width of said light emitter chip to the width of said submount in a given direction is 0.35 or more. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
-
Specification