Patent ID: 8729586
Filing Date: 2014-05-20
Classification: F21Y,H01L

Abstract:
1. A light-emitting diode device comprising: a substrate; an upper metal film disposed on an upper surface of said substrate, and including a chip-mounting region and a plurality of conductive pad regions surrounding said chip-mounting region; two first light-emitting chips and two second light-emitting chips disposed on said chip-mounting region, said first and second light-emitting chips being disposed alternately, two of said first and second light-emitting chips being opposite to each other, said second light-emitting chips emitting light having a wavelength different from that emitted by said first light-emitting chips; a fluorescent layer coated on said first light-emitting chips; and a lens disposed on said substrate to cover said first and second light-emitting chips and said fluorescent layer; wherein said lens has a largest height from an imaginary plane defined by a top face of each of said first light-emitting chips, and a largest radius in said imaginary plane, a ratio of said largest height to said largest radius being greater than 1 and smaller than 1.2.