Nepes Led Corporation

Yongzhi He

Nguyen The Tran

Frank Shi

An LED leadframe package with surface tension function to enable the production of LED package with convex lens shape by using dispensing method is disclosed. The LED leadframe package of the invention is a PPA supported package house for LED packaging with metal base, four identical metal electrodes, and PPA plastic to fix the metal electrodes and the heat dissipation base together, four ring-alike structures with a sharp edge and with a tilted inner surface, and three ring-alike grooves formed between sharp edge ring-alike structures.

Leadframe package for light emitting diode device

A lamp cover containing phosphor for providing white light emission is disclosed. The lamp cover is comprised of a light-partial-reflective cap structure providing the outer surface of the lamp cover, wherein the light-partial-reflective cap structure is composed of a plurality of light transparent layers and a plurality of vacuum layers that are stacked in an alternating manner from outside to inside, a supporting transparent cap structure providing the inner surface of the lamp cover, and a phosphor mixed structure mechanically supported by the outer surface of the supporting transparent cap structure, wherein the outer surface of the phosphor mixed structure is adjacent to the most inner vacuum layer of the light-partial-reflective cap structure. Once the lamp cover is combined with a phosphor exciting light source, the light-partial-reflective cap structure partially prevents phosphor exciting light from escaping from the lamp cover by using Fresnel reflection.

Lamp cover including a phosphor mixed structure for light emitting device

An LED lamp cover structure containing luminescent material and its fabrication methods are described. The LED lamp cover is comprised of a first lens cap providing the outer surface of the lamp cover, a second lens cap providing the inner surface of the lamp cover, and an encapsulating layer sandwiched between the lens cap providing the outer surface of the lamp cover and the lens cap providing the inner surface of the lamp cover, which is mixed with luminescent material for wavelength conversion.

Lamp-cover structure containing luminescent material

An LED lamp cover structure containing luminescent material, its fabrication methods, and an LED package using the LED lamp cover are disclosed. The LED lamp cover is comprised of a first lens cap providing the outer surface of the lamp cover, a second lens cap providing the inner surface of the lamp cover, and an encapsulating layer sandwiched between the first and second lens caps. The lamp cover of the invention covering a color LED package such as blue color can provide white light output.

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Irvine, CA, United States of America

Yongzhi He