CN210179356U - Focus-adjustable LED lamp - Google Patents

Abstract

The utility model discloses a focusing LED lamp, which comprises a lens component, a focusing component, a shell and a light source, wherein the lens component comprises a light guide rod, a dodging lens, a focusing lens and a protective lens which are arranged in sequence along the direction far away from the light source, and the lens component and a light-emitting shaft are coaxially arranged; the light guide rod mixes light rays emitted by the light source and then guides the mixed light rays to the light uniformizing lens, the light uniformizing lens further performs uniform processing on the light rays, then the uniformly processed light rays are focused through the focusing lens and finally output through the protection lens; the focusing assembly is arranged between the light guide rod and the protective lens, a motor is arranged in the focusing assembly, and the motor drives the focusing lens to be close to or far away from the light source, so that the function of adjusting the light emitting angle of the lamp is realized. The utility model discloses a RGBW four-color LED uses leaded light stick and dodging camera lens to mix light simultaneously as the light source to adopt fresnel lens as focus lens, realize wide-angle range, the even output of light of arbitrary color.

Description

Focus-adjustable LED lamp

Technical Field

The utility model relates to the technical field of lighting fixtures, especially, relate to a LED lamps and lanterns that can focus.

Background

The lamp is widely applied to the construction of lighting and stage light and shadow effects, and particularly has higher requirements on the adjustment of the focal length (light emitting angle) of the lamp on the construction of the stage light and shadow effects.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a LED lamp capable of focusing, which is provided with a lens component and a focusing component, and can realize the accurate, stable and large-angle light-emitting angle electric focusing function.

The utility model discloses the technical scheme who adopts as follows:

the utility model provides a LED lamps and lanterns that can focus, includes lens subassembly, focusing subassembly, shell and light source, its characterized in that: the lens assembly, the focusing assembly and the light source are all fixedly arranged inside the shell;

the lens component comprises a light guide rod, a light homogenizing lens, a focusing lens and a protective lens which are sequentially arranged along the direction away from the light source, the lens component and the light outlet shaft are coaxially arranged, and the protective lens is fixed at one end of the shell.

The focusing assembly is arranged between the light guide rod and the protective lens and comprises a fixed frame and a shading sheet which are sequentially arranged along the light emitting direction, the fixed frame is fixedly arranged in the shell, and the shading sheet is kept relatively fixed with the fixed frame by a supporting frame; the fixing frame is L-shaped, one surface of the L-shaped fixing frame, which is vertical to the light outlet shaft, is fixed with the dodging lens, and one surface of the L-shaped fixing frame, which is parallel to the light outlet shaft, is fixed with the motor; a driving wheel is arranged on an output shaft of the motor, a driven wheel is arranged on the shading sheet, and the driven wheel is connected with the driving wheel through a belt;

a sliding sheet is arranged between the fixed frame and the shading sheet and is connected with the belt; the focusing lens is fixed on the sliding sheet;

the light source is an LED.

Preferably, a guide rod is arranged between the fixed frame and the shading sheet, and the guide rod is in clearance fit with the sliding sheet.

Preferably, the shading sheet is provided with a through shading hole, and the shading hole is coaxial with the light outlet shaft.

Preferably, the motor is a stepper motor.

Preferably, the focusing lens is a fresnel lens.

Preferably, the light source is an RGBW four-color LED.

Preferably, the belt is a teflon synchronous belt.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the stepping motor is adopted for driving, and the arrangement of the guide rod is matched, so that accurate and stable electric focusing is realized;

2. adopt RGBW four-color LED as the light source, use leaded light stick and dodging camera lens to mix light simultaneously to adopt fresnel lens as focus lens, realize the angle on a large scale, the even output of light of arbitrary color.

Drawings

Fig. 1 is a perspective view of the internal structure of the present invention;

FIG. 2 is a sectional view of the whole structure of the present invention;

fig. 3 is a schematic view of the light shielding sheet of the present invention;

wherein: a lens assembly 10; a protective lens 11; a focusing lens 12; a dodging lens 13; a light guide rod 14; a focusing assembly 20; a motor 21; a drive wheel 22; a belt 23; a driven pulley 24; a fixed frame 25; a support frame 26; a slide plate 27; a guide rod 28; a light-shielding sheet 30; a light shielding hole 31; a light source 40; a housing 50.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, the focus-adjustable LED lamp comprises a lens assembly 10, a focusing assembly 20, a housing 50 and a light source 40; the method is characterized in that: the lens assembly 10, the focusing assembly 20 and the light source 40 are all fixedly arranged inside the shell 50;

the lens assembly 10 comprises a light guide rod 14, a dodging lens 13, a focusing lens 12 and a protection lens 11 which are sequentially arranged along the direction (light emitting direction) away from the light source 40, the lens assembly 10 is coaxially arranged with a light emitting shaft, and the protection lens 11 is fixed at one end of the shell 50.

In this embodiment, the light guide rod 14 mixes the light emitted from the light source 40 and guides the mixed light to the dodging lens 13, the dodging lens 13 further performs uniform processing on the light, the uniformly processed light is focused by the focusing lens 12 and is output to the outside of the lamp through the protection lens 11, and the protection lens 11 is used for protecting the precise focusing lens 12 inside.

The focusing assembly 20 is arranged between the light guide rod 14 and the protective lens 11, the focusing assembly 20 comprises a fixing frame 25 and a light shielding sheet 30 which are sequentially arranged along the light emitting direction, and the fixing frame 25 is fixedly arranged inside the shell 50; the shading sheet 30 is kept fixed relative to the fixed frame 25 by the supporting frame 26; the fixing frame 25 is in an L shape, one surface of the L shape perpendicular to the light outlet axis is fixed with the dodging lens 13, and one surface of the L shape parallel to the light outlet axis is fixed with the motor 21.

A driving wheel 22 is arranged on an output shaft of the motor 21, a driven wheel 24 is arranged on the shading sheet 30, and the driven wheel 24 is connected with the driving wheel 22 through a belt 23; a sliding sheet 27 is arranged between the fixed frame 25 and the shading sheet 30, and the sliding sheet 27 is connected with the belt 23; the focusing lens 12 is fixed on the sliding sheet 27; when the motor 21 rotates, the focusing lens 12 is driven to move along the light-emitting axis, so that the focusing lens 12 is close to or away from the light source 40, thereby achieving the purpose of adjusting the light-emitting angle of the lamp, in this embodiment, the light-emitting angle can be adjusted between 5 degrees and 130 degrees.

Further, a guide rod 28 is arranged between the fixed frame 25 and the shading sheet 30, and the guide rod 28 is in clearance fit with the sliding sheet 27; through the arrangement of the guide rod 28, the stability of the focusing lens 12 during movement can be improved.

Further, as shown in fig. 3, the light shielding sheet 30 is provided with a through light shielding hole 31, and the light shielding hole 31 is coaxially arranged with the light output axis; the shading hole 31 is used for shading stray light rays emitted by the focusing lens 12, and the influence of the stray light rays on the whole illumination effect of the lamp is avoided.

Further, the motor 21 is a stepping motor, and the stepping motor can control the position of the focus lens 12 more accurately.

Further, the focusing lens 12 is a fresnel lens.

Further, the light source 40 is an RGBW four-color LED light source, and the RGBW four-color LED light source may mix colors of light with any color by the controller, so as to achieve a variable illumination effect.

Further, the belt 23 is a teflon synchronous belt, the synchronous belt has the characteristics of high precision and stable operation, and meanwhile, the high-temperature resistance characteristic of the teflon material can prevent the high temperature inside the lamp from causing the service life of the synchronous belt to be shortened.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the present invention.

Claims (7)

1. The utility model provides a LED lamps and lanterns that can focus, includes lens subassembly, focusing subassembly, shell and light source, its characterized in that: the lens assembly, the focusing assembly and the light source are all fixedly arranged inside the shell;

the lens assembly comprises a light guide rod, a light uniformizing lens, a focusing lens and a protecting lens which are sequentially arranged along the direction far away from the light source, the lens assembly and the light outlet shaft are coaxially arranged, and the protecting lens is fixed at one end of the shell;

the focusing assembly is arranged between the light guide rod and the protective lens, and comprises a fixed frame and a shading sheet which are sequentially arranged along the light emitting direction, the fixed frame is fixedly arranged in the shell, and the shading sheet is kept to be relatively fixed with the fixed frame by a supporting frame; the fixing frame is L-shaped, one surface of the L-shaped fixing frame, which is vertical to the light outlet shaft, is fixed with the dodging lens, and one surface of the L-shaped fixing frame, which is parallel to the light outlet shaft, is fixed with the motor; a driving wheel is arranged on an output shaft of the motor, a driven wheel is arranged on the shading sheet, and the driven wheel is connected with the driving wheel through a belt;

a sliding sheet is arranged between the fixed frame and the shading sheet and is connected with the belt; the focusing lens is fixed on the sliding sheet;

the light source is an LED.

2. The focusable LED light fixture of claim 1, wherein: a guide rod is arranged between the fixed frame and the shading sheet and is in clearance fit with the sliding sheet.

3. The focusable LED light fixture of claim 1, wherein: the shading sheet is provided with a through shading hole which is coaxial with the light outlet shaft.

4. The focusable LED light fixture of claim 1, wherein: the motor is a stepper motor.

5. The focusable LED light fixture of claim 1, wherein: the focusing lens is a Fresnel lens.

6. The focusable LED light fixture of claim 1, wherein: the light source is an RGBW four-color LED.

7. The focusable LED light fixture of claim 1, wherein: the belt is a Teflon synchronous belt.

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