Patent ID: 9297521
Filing Date: 2016-03-29
CPC Classification: F21K,F21V,F21Y

Claim Text:
1. A focusing structure for an LED lamp, comprising a main body, LED chips mounted in the main body, and a lens assembly mounted at a front end of the main body, at least one of the LED chips being not located on the axis of the LED lamp, the lens assembly comprising at least two sets of lenses, each set of lenses corresponding in position to the LED chips on a same circumference, the lens assembly and the main body being rotatably engaged with each other, wherein the main body has a chamber therein, an inner wall of the chamber has positioning grooves, the number of the positioning grooves is a multiple of the number of the lenses, the lens assembly further comprises a fixing disc for mounting the lenses, the fixing disc has at least one positioning post thereon, after the lens assembly is inserted in the chamber of the main body, the at least one positioning post engages with a corresponding one of the positioning grooves so that the lens assembly is mated with the chamber tightly.