LED (light-emitting diode) lamp convenient to focus

Abstract

The invention relates to an LED (light-emitting diode) lamp convenient to focus. The LED lamp comprises a lamp body, an aluminum substrate and a lens assembly, wherein the aluminum substrate is fixedly arranged on the lamp body and provided with a plurality of LED elements, and the lens assembly is arranged at the front end of the aluminum substrate; a circuit board electrically connected with the LED elements on the aluminum substrate is also arranged in the lamp body; the LED elements are arranged on the circumference of the aluminum substrate at equal space; the lens assembly is provided with at least two sets of lenses different in degree; positions of each set of lens and positions of the corresponding LED elements are concyclic and mutually correspond; the lamp is also provided with a deformation ring and a rotating ring which is arranged at the front end of the lens assembly and fixed to the lens assembly; the aluminum substrate is fixedly connected with the deformation ring; the deformation ring is fixedly connected with the lamp body; the rotating ring is limited on the deformation ring, and the rotating ring rotates around the deformation ring; when the rotating ring rotates around the deformation ring and after the rotating ring is positioned after rotating, each set of lens on the lens assembly is aligned with the corresponding LED elements.

Description

technical field [0001] The invention relates to an LED lamp, in particular to a focus-adjustable LED lamp. Background technique [0002] A lens is usually arranged in front of the LED chip of the LED lamp to focus the light. Most of the existing LED lights cannot be focused, and changing the irradiation angle can only be achieved by changing lenses with different angles, but changing lenses is very inconvenient in actual use. [0003] At present, there is also a LED lamp that can adjust the brightness or range of the irradiation beam on the market. For example, the Chinese utility model patent CN202065923U, which was authorized and announced on December 7, 2011, discloses a "beam adjustment of LED lamp." Structure", this kind of LED lamp is the same as most of the focusable LED lamps in the existing market, and the irradiation angle is changed by changing the distance between the lens and the chip, but the light loss of this focusing method is relatively serious, which will...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an LED lamp with simple structure, convenient assembly, which can effectively reduce the light loss of the lamp, and is easy to adjust the focus, so as to solve the problem of low luminous efficiency of the LED lamp in the prior art and the difficulty of focusing. The problem of complex operation, inconvenience and high cost

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