Patent ID: 7874692
Filing Date: 2011-01-25
Classification: F21K,F21V,F21Y,Y10S

Abstract:
1. An LED lamp, comprising: a lamp cover comprising a plurality of fins attached to an outer sidewall thereof and a plurality of LED modules attached to an inner sidewall thereof; and a locking device pivotably connected to an inside of the lamp cover, the locking device comprising a supporting pole extending in the lamp cover and a plurality of branches pivotably connected to the supporting pole and the lamp cover; wherein each of the branches of the locking device is supported by the supporting pole when the locking device is moved to a locked position and wherein the branches of the locking device can be moved along the supporting pole to be held at a desired position, so that an illumination angle of the LED modules of the lamp cover relative to the supporting pole is changeable via movement of the branches along the supporting pole of the locking device to thereby adjust an illumination area and an illumination intensity of the LED lamp; wherein the lamp cover comprises a plurality of sector-shaped bodies each having one end portion connecting with each other and the bodies are pivotably connected to the supporting pole, and wherein a distance between every two adjacent bodies is changeable when the branches move along the supporting pole; wherein the locking device further comprises a ring connecting the branches and the supporting pole and the ring is movable along a length direction of the supporting pole whereby the branches are moved along the supporting pole; and wherein the supporting pole comprises a plurality of tabs extending therefrom and the ring is supported by a corresponding tab when the locking device is moved to the desired position.