Independent lens rapid zooming mechanism and zooming method

Abstract

The invention discloses an independent lens rapid zooming mechanism and zooming method. The independent lens rapid zooming mechanism comprises a light bead plate, an electromagnet, light beads, a spring, a magnetic lens seat and a lens group, wherein the electromagnet is installed on the light bead plate and is provided with a light-permeating hole, the light beads are installed on the light bead plate located in the light-permeating hole, the spring is arranged between the magnetic lens seat and the electromagnet, magnetic lenses are provided with light-permeating holes, and the lens group is arranged on the magnetic lens seat. According to the zooming method, movement of the magnetic lens seat is achieved by controlling the electromagnet, and then the purpose of zooming is achieved. Therefore, the zooming mechanism of the structure is simple in structure, and capable of rapidly achieving the zooming purpose.

Description

technical field [0001] The invention relates to an independent lens fast zooming mechanism and a zooming method in a lamp. Background technique [0002] In order to adjust the focal point of the light, adjust the size and brightness of the light spot, it is generally realized by zooming. But the existing zooming structure is relatively complicated, and the zooming is not fast. For example, a variable-focusing LED lamp is disclosed in the patent document whose application number is 200810142645.3 and the publication date is December 31, 2008, and specifically discloses that the LED lamp includes Rear seat, LED with substrate, lamp body, lens, limit screw, lens bracket, adjustment ring, lamp body includes front lamp body and rear lamp body, LED with substrate is fixed on the rear seat, the head of the rear lamp body , the tail part are fixedly connected with the tail part and the rear seat of the front lamp body respectively, the lens is fixed on the lens bracket, the adjusti...

AI Technical Summary

Problems solved by technology

But the existing zooming structure is relatively complicated, and the zooming is not fast. For example, a variable-focusing LED lamp is disclosed in the patent document whose application number is 200810142645.3 and the publication date is December 31, 2008, and specifically discloses that the LED lamp includes Rear seat, LED with substrate, lamp body, lens, limit screw, lens bracket, adjustment ring, lamp body includes front lamp body and rear lamp body, LED with substrate is fixed on the rear seat, the head of the rear lamp body , the tail part are fixedly connected with the tail part and the rear seat of the front lamp body respectively, the lens is fixed on the lens bracket, the adjusting ring is fixed and rotated in the axial direction with the front lamp body, and the side wall of the lens bracket is provided with a guide Groove, external thread, internal thread is provided on the adjusting ring, the external thread and the internal thread are matched and connected, the limit screw is fixed on the rear seat and protrudes from the side wall of the rear seat, and the limit screw is matched with the guide groove ; When the adjusting ring is rotated, the distance between the lens and the LED can be adjusted, so as to achieve the purpose of focusing, but the structure of the LED lamp is complicated, and the speed of focusing is slow

[0003] In addition, there is another way to adjust the lens board through a motor, that is, install a motor on the lamp bead board, install a screw on the output of the motor, and install a nut on the lens board. When the motor is working, the function of the screw and the nut It can drive the lens plate to move up and down, so as to achieve the purpose of focusing, but the structure is still relatively complicated, and the speed of focusing is slow

Images