US 12,013,101 B1
LED lamp independently and stepwise adjustable in beam angle
Fei Li, Shenzhen (CN)
Assigned to Shenzhen Wanjia Lighting Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Wanjia Lighting Co., Ltd., Shenzhen (CN)
Filed on Dec. 7, 2023, as Appl. No. 18/532,007.
Claims priority of application No. 202322310598.1 (CN), filed on Aug. 28, 2023.
Int. Cl. F21V 14/06 (2006.01); F21V 17/00 (2006.01); F21V 17/02 (2006.01); F21V 23/04 (2006.01); F21Y 115/10 (2016.01)
CPC F21V 14/06 (2013.01) [F21V 17/002 (2013.01); F21V 17/02 (2013.01); F21V 23/0435 (2013.01); F21Y 2115/10 (2016.08)] 17 Claims
OG exemplary drawing
 
1. An LED lamp independently and stepwise adjustable in beam angle, the LED lamp comprising a lamp body, a lens module and an LED light source-driver assembly installed inside the lamp body, the LED light source-driver assembly comprising an LED light source and an LED driver,
wherein the lens module comprises a mounting base, a lens fixing member, and a lens member which are fit together, the lens member being arranged between the mounting base and the lens fixing member;
wherein the lens module is a separate module removably assembled with the LED light source-driver assembly;
wherein the stepwise adjustment of the beam angle is executed by a stepwise operation on the lens module; and
wherein the relative circumferential position of the lens member relative to the mounting base and the lens fixing member is adjustable in a stepwise manner, such that the lens module is independently operable to perform a stepwise adjustment of a beam angle of the LED lamp;
wherein the mounting base is shaped as a cylinder, with two paired sets of diametrically opposite limit grooves in an inner circumferential wall of the cylinder, wherein the two paired sets of limit grooves are each provided with an equal number of limit grooves extending axially upward and circumferentially spaced apart from each other, and wherein each of the limit grooves has an axial depth corresponding to a beam angle;
wherein the lens fixing member is shaped as a circular ring, with two paired sets of diametrically opposite limit pillars arranged in the circular ring, wherein the two paired sets of limit pillar are each provided with an equal number of axially extending limit pillars;
wherein the two paired sets of limit grooves are respectively corresponding to the two paired sets of limit pillars, wherein the limit pillars in each set of limit pillars are positioned and sized to fit into respective limit grooves in a corresponding set of limit grooves, and an axial height of each limit pillar is smaller than an axial depth of the corresponding limit groove, such that limit recesses in the limit grooves are formed and kept upon the fit;
wherein a pair of diametrically opposite limit bosses is provided in an outer circumferential wall of the lens member, and the pair of limit bosses are positioned and sized to fit into a pair of limit recesses; and
wherein a beam angle of the LED lamp is defined through a fit between the pair of limit bosses and a pair of limit recesses formed by limit grooves and limit pillars corresponding to said beam angle, wherein said beam angle is stepwise adjustable to a different beam angle of the LED lamp.