CN203273716U

CN203273716U - Focusing device of LED (light-emitting diode) lamp

Info

Publication number: CN203273716U
Application number: CN 201320327926
Authority: CN
Inventors: 傅高武; 常青; 贺一平; 彭岳棋; 王珏
Original assignee: HUNAN MINGHE OPTO TECH Co Ltd
Current assignee: HUNAN MINGHE OPTO TECH Co Ltd
Priority date: 2013-06-08
Filing date: 2013-06-08
Publication date: 2013-11-06
Anticipated expiration: 2023-06-08

Abstract

The utility model relates to a focusing device of an LED (light-emitting diode) lamp. The focusing device comprises a lens group, an LED lamp plate, a bearing guide rod, a limiting plate, a lifting plate, a focusing bracket, a motor and a motor shaft sleeve, wherein the upper end of the bearing guide rod is fixedly connected with the lens group, and orderly passes through the LED lamp plate, the limiting plate and the lifting plate; the lower end of the bearing guide rod is fixedly connected with the focusing bracket; the focusing bracket, the lifting plate and the limiting plate are provided with round through holes in the central positions; the motor is arranged below the focusing bracket; a rotating shaft on the motor orderly passes through the round through hole in the focusing bracket, a round through hole in the motor shaft sleeve, and the round through holes in the lifting plate and the limiting plate. The focusing device is simple and fast to operate, solves the problems of fussy manual focusing process, poor focusing accuracy, large designed motor quantity, high material cost and the like in the prior art, and can be widely applied to the fields such as lighting and landscaping of television stage performing arts, and city landscape lighting.

Description

A kind of LED light fixture focus control

Technical field

The utility model relates to a kind of light fixture focus control, relates in particular to a kind of LED light fixture focus control.

Background technology

In LED light fixture in early days, between lamp light source and lens, distance is fixing, and the light fixture spot size can't be regulated, and can not satisfy the actual illumination requirement according to real needs.Progressively maturation along with LED light fixture technology, LED light fixture and the device that can carry out focus adjustment occur, as " focusing structure of LED the lamp " (patent No.: ZL201220506262.X), this utility model is by the set of lenses of the different number of degrees of design at least two groups before LED light source, make the lens of the different number of degrees corresponding with LED light source by the relay lens group, thereby realize the focusing function.But be limited by the restriction of light fixture size due to lamp lens group quantity and the number of degrees, the light fixture focus adjustment is limited in scope, and can not satisfy neatly actual zoom needs; " a kind of focus adjusting mechanism of stage lamp " (patent No.: ZL 201220220762.9) discloses a kind of focus control, this patent is by arranging the parts such as motor, moving slider, rail plate, sliding bar, utilize the interlock drive focus adjusting mechanism of belt and slide block to move up and down along rail plate and sliding bar under the drive of four motors in left and right, thereby realize the variation of focal length.This Patent design four motors, focus adjusting mechanism moves along rail plate and sliding bar, this device not only needs four motors to drive simultaneously, Material Cost is high, and the synchronism to four motors requires very high, in case some or a plurality of motor rotations will cause the asymmetric movement of focus adjusting mechanism when undesired, cause the focus adjusting mechanism focusing inaccurate, even damage focus adjusting mechanism and light fixture.

Summary of the invention

For the deficiency of existing LED light fixture focus adjusting mechanism, the utility model provides a kind of cost LED light fixture focal length adjustment device low, simple in structure.

For achieving the above object, the utility model is taked following technical scheme:

A kind of LED light fixture focus control, comprise set of lenses, LED light plate, bearing guide rod, limiting plate, lifter plate, focusing support, motor, motor shaft sleeve, described bearing guide rod upper end and set of lenses are connected and fixed, pass successively LED lamp plate, limiting plate, lifter plate, the lower end is connected and fixed with the focusing support again.

Described set of lenses is that two aluminium panels clampings and fixing a plurality of lens form, and is provided with 4 threaded circular apertures in the edge symmetric position.

Even distribution LED light source on described LED lamp plate be provided with 4 manholes in LED lamp plate edge symmetric position, and the LED lamp plate is fixed on lamp radiator.

Described limiting plate four end symmetric positions are provided with 4 manholes, and limiting plate is connected and fixed by screw and focusing support.

Described lifter plate four end symmetric positions are provided with 4 manholes.

Described focusing support four end symmetric positions are provided with 4 not penetrating shallow slots of circle.

Described lifter plate and the middle motor shaft sleeve that is provided with of focusing support.

Described focusing support, lifter plate and limiting plate are provided with manhole in the center, and described motor is arranged on below the focusing support, and the rotating shaft on motor passes the manhole on focusing support, motor shaft sleeve, lifter plate and limiting plate successively.

The beneficial effects of the utility model are: simple and quick because the utility model adopts motorized adjustment light fixture focal length, adopt in the past the deficiencies such as the manual focusing process is loaded down with trivial details, focusing accuracy is poor thereby solve; Reduce number of motors by optimal design, can reduce LED light fixture Material Cost, can be widely used in the illumination of stage video display performing art, make the fields such as scape and landscape light in city.

Description of drawings

Fig. 1 is the utility model focal length adjustment device decomposing schematic representation.

Fig. 2 is the schematic diagram before the focusing of the utility model focal length adjustment device.

Fig. 3 is the schematic diagram after the focusing of the utility model focal length adjustment device.

The specific embodiment

Below, the utility model is described in further detail with specific embodiment by reference to the accompanying drawings.

As shown in Figure 1 and Figure 2, the utility model comprises set of lenses 1, LED light plate 2, bearing guide rod 3, limiting plate 4, lifter plate 5, focusing support 6, motor 7, motor shaft sleeve 8, described bearing guide rod 3 upper ends and set of lenses 1 are connected and fixed by screw, pass successively again LED lamp plate 2, limiting plate 4, lifter plate 5, be fixed in the not penetrating shallow slot of circle of lower end insertion focusing support 6.

As shown in Figure 2 and Figure 3, when the running of motor 7, LED lamp plate 2 maintains static, rotating shaft on motor 7 moves motor shaft sleeve 8 up and down, thereby driving lifter plate 5 moves up and down, drive lower bearing guide rod 3 at lifter plate 5 moves up and down set of lenses 1 by the manhole on limiting plate 4 and LED lamp plate 2, bearing guide 3 move up and down process in can control according to actual needs motor 7 duties, bearing guide 3 stops mobile when lifter plate 5 arrives limiting plates 4 or regulates support 6 position.

The utility model utilizes motor 7 mobile distance of regulating light source on set of lenses 1 and LED lamp plate 2 up and down, thereby realize the change of lamp light source focal length and the variation of spot size, regulate simple and convenient, focusing accuracy is higher, practical, can be widely used in the fields such as stage lamp, landscape light in city light fixture.

The above is only preferred embodiment of the present utility model, is not to limit scope of the present utility model, thus all variation or modifications of doing according to claim of the present utility model and specification, within all should belonging to the scope that the utility model patent contains.

Claims

1. LED light fixture focus control, comprise set of lenses, LED light plate, bearing guide rod, limiting plate, lifter plate, focusing support, motor, motor shaft sleeve, described bearing guide rod upper end and set of lenses are connected and fixed, pass successively LED lamp plate, limiting plate, lifter plate, the lower end is connected and fixed with the focusing support again.

2. a kind of LED light fixture focus control according to claim 1 is characterized in that: described set of lenses is that two aluminium panels clampings and fixing a plurality of lens form, and is provided with 4 threaded circular apertures in the edge symmetric position.

3. a kind of LED light fixture focus control according to claim 1 is characterized in that: even distribution LED light source on described LED lamp plate be provided with 4 manholes in LED lamp plate edge symmetric position, and the LED lamp plate is fixed on lamp radiator.

4. a kind of LED light fixture focus control according to claim 1, it is characterized in that: described limiting plate four end symmetric positions are provided with 4 manholes, and limiting plate is connected and fixed by screw and focusing support.

5. a kind of LED light fixture focus control according to claim 1, it is characterized in that: described lifter plate four end symmetric positions are provided with 4 manholes.

6. a kind of LED light fixture focus control according to claim 1, it is characterized in that: described focusing support four end symmetric positions are provided with 4 not penetrating shallow slots of circle.

7. a kind of LED light fixture focus control according to claim 1, is characterized in that: described lifter plate and the middle motor shaft sleeve that is provided with of focusing support.

8. a kind of LED light fixture focus control according to claim 1, it is characterized in that: described focusing support, lifter plate and limiting plate are provided with manhole in the center, described motor is arranged on below the focusing support, and the rotating shaft on motor passes the manhole on focusing support, motor shaft sleeve, lifter plate and limiting plate successively.