LED device with combined Reflector and Spherical Lens
First Claim
1. A light source comprising:
- a substrate having a first top surface;
a die comprising a second top surface and an LED, said die being attached to said first top surface; and
a first dome covering said second top surface of said die, said first dome making direct contact with said second top surface and having an angle of contact greater than 90% with respect to said second top surface.
1 Assignment
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Accused Products
Abstract
A light source and method for making the same are disclosed. The light source includes a substrate having a top surface, a die, and a first encapsulating layer. The die includes an LED attached to the top surface and electrically connected to traces in the substrate that power the LED. The first dome covers the die and is in contact with the top surface, the dome having an angle of contact greater than 90° with respect to the top surface. The first dome has an outer surface that includes a truncated sphere characterized by a center for the spherical portion of the surface, and the die is situated at a position below the center. A second dome can be provided around the outside of the first dome. In addition, the first dome may include light converting and/or scattering materials.
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Citations
20 Claims
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1. A light source comprising:
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a substrate having a first top surface; a die comprising a second top surface and an LED, said die being attached to said first top surface; and a first dome covering said second top surface of said die, said first dome making direct contact with said second top surface and having an angle of contact greater than 90% with respect to said second top surface. - View Dependent Claims (4, 5, 6, 7, 8)
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2-3. -3. (canceled)
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9-10. -10. (canceled)
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11. A method for fabricating a light source, said method comprising:
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attaching a die having an LED thereon to a substrate, said die having a top surface, a bottom surface, and a plurality of side surfaces, said die being attached to said substrate by said bottom surface; connecting contacts on said LED to traces in said substrate; dispensing a first droplet of a first precursor of an encapsulating material on said top surface of said die; and curing said first droplet to form a first dome having an outer surface over said die, said outer surface comprising a truncated sphere. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification