Collimating light from an LED device
First Claim
Patent Images
1. A Light Emitting Diode (LED) device, comprising:
- a monolithic structure;
an LED die encapsulated within the monolithic structure;
a lens at one surface of the monolithic structure;
a parabolic reflector at an outer surface of the monolithic structure that is opposite the lens;
the lens, the parabolic reflector, and the LED die being configured such that light emitted from the LED die is reflected by the parabolic reflector past the LED die and towards the lens; and
an I-beam leadframe that is an electrical conduit for the LED die, the I-beam leadframe having a height dimension that is larger than a width dimension, which accords the I-beam leadframe a narrow optical profile relative to light that passes parallel to the height dimension of the I-beam leadframe, the I-beam leadframe being oriented relative to the LED die, the lens, and the parabolic reflector such that light reflected from the parabolic reflector passes the I-beam leadframe parallel to the height dimension of the I-beam leadframe;
wherein the I-beam leadframe includes a cathode having a first bend about a first axis and a second bend about a second axis, wherein the first and second axes are perpendicular to each other.
11 Assignments
0 Petitions
Accused Products
Abstract
A technique for collimating light from a Light Emitting Diode (LED) device involves emitting light from an LED die, collimating the light with a parabolic reflector, and further collimating the light with a lens. A device constructed according to the technique includes an LED die, a lens for collimating light, and a parabolic reflector for collimating light from the LED die toward the lens.
-
Citations
10 Claims
-
1. A Light Emitting Diode (LED) device, comprising:
-
a monolithic structure; an LED die encapsulated within the monolithic structure; a lens at one surface of the monolithic structure; a parabolic reflector at an outer surface of the monolithic structure that is opposite the lens; the lens, the parabolic reflector, and the LED die being configured such that light emitted from the LED die is reflected by the parabolic reflector past the LED die and towards the lens; and an I-beam leadframe that is an electrical conduit for the LED die, the I-beam leadframe having a height dimension that is larger than a width dimension, which accords the I-beam leadframe a narrow optical profile relative to light that passes parallel to the height dimension of the I-beam leadframe, the I-beam leadframe being oriented relative to the LED die, the lens, and the parabolic reflector such that light reflected from the parabolic reflector passes the I-beam leadframe parallel to the height dimension of the I-beam leadframe; wherein the I-beam leadframe includes a cathode having a first bend about a first axis and a second bend about a second axis, wherein the first and second axes are perpendicular to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification