CN201599646U - High-frequency LED reflector lamp - Google Patents

Abstract

The utility model belongs to the technical field of photoelectricity, in particular to a high-frequency LED reflector lamp which mainly consists of an optical source les compounded by a PCB board and a PMMA material, an aluminum alloy shell, pins without polarity and a constant flow drive power. The high- frequency LED reflector lamp adopts three high-frequency LEDs as light-emitting component elements which are matched with a three-in-one compound optical lens to exit beams and realize the optical distribution requirements of different characteristics, thereby meeting the requirements of different occasions. The LED reflector lamp designed by the utility model can also realize the stability of current and brightness and guarantee the using safety.

Description

A kind of high-capacity LED shot-light

Technical field

The utility model belongs to the electric light source technology field, is specifically related to a kind of LED shot-light.

Background technology

Light emitting diode (LED) is widely used day by day as a kind of green and energy-conservation emerging light source at present, constantly develops with unprecedented speed at lighting field.Universal LED MR16 shot-light generally is installed in the Lamp cup with 3 1W LED, and used lens mostly are the discrete design in the Lamp cup, and the structure of this lens is relatively complicated in the installation process of product, and the transmitance to light exists certain deficiency simultaneously.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, and is easy for installation, and can obviously improve hot spot, and improves the LED high power shot-light of the transmitance of light.

The high-capacity LED shot-light of the utility model design, mainly by the light source pcb board, the light lens that the PMMA material is synthetic, the aluminium alloy lamp housing, with the lamp base of polarity, constant-current driving power supply is not formed; Wherein the light source pcb board is an aluminium sheet, and 3 high-capacity LEDs of series connection are housed on it, and every LEDs is by corresponding light lens outgoing beam; The pcb board of aluminum is combined closely by screw and aluminium alloy lamp housing; Lens are fixed via screw by an aluminium circle and aluminium alloy lamp body; The light source pcb board is by constant-current drive circuit and effective electric connection of lamp base two ends.

Wherein, described light lens is the three-in-one compound lens of a particular design, its structure as depicted in figs. 1 and 2, wherein, mid portion is reflectings surface 1 of three high order aspheric surfaces corresponding to three LEDs places, its expression formula is:

$Z=\frac{a{\mathrm{<figure-callout\; id="2"\; label="r"\; filenames="H2009202128930E00012.png"\; state="\{\{state\}\}">r</figure-callout>}}^2}{1+\sqrt{1+\mathrm{<figure-callout\; id="2"\; label="b\; r"\; filenames="H2009202128930E00012.png"\; state="\{\{state\}\}">b</figure-callout>}{r}^{}{}^2}}+\mathrm{<figure-callout\; id="2"\; label="c\; r"\; filenames="H2009202128930E00012.png"\; state="\{\{state\}\}">c</figure-callout>}{r}^{}{}^2+d{r}^4$

Here r ²=x ²+ y ²Be radius;

There is a LEDs light source at the center of each high order aspheric surface reflecting surface.The marginal portion is paraboloidal reflecting surface 2; At high order aspheric surface and paraboloidal front is circular mask 3, and this face shield is a cellular sphere array of arranging, and forms light integrator.The utility model has designed a kind of brand-new light lens and has promptly closed 1 compound lens for one 3, by its specific structure, change the LED lighting angle, and adopt the PMMA material of high permeability, reach the efficient utilization of required lighting angle of LED shot-light light fixture and light energy.

Light lens of the present utility model carries out the LED spot light certain angle compression earlier, because lighting angle is big, so with the light energy separated into two parts, by different optical surface effects.Be the intermediate energy that LED sends, 3 high order spheric reflection effects by mid portion have preferably the aberration of the light at acting surface edge and improve, and can better control the shooting angle of light.The energy at the edge that LED sends is then by paraboloidal total reflection effect, obtains required angle compression, and the inhomogeneities of the hot spot that can improvement reflection to a certain degree brings.

After finishing the compression of LED lighting angle, light is during from the lens outgoing, and the exit facet of lens is a face shield, is cellular sphere array, form light integrator, arrive the light of exit facet, because the effect of light integrator, after the light radiation on the exit facet cut apart, effect through each sphere, mutual superposition on shadow surface, the inhomogeneous mutual compensation of irradiation can obtain more uniform hot spot.Cooperatively interacting of lighting angle on the array after the curvature of sphere and the compression before obtains the required lighting angle of shot-light.

Compact three-in-one structure interconnects the radiation of three LEDs on the lens exit facet, as if a light source adds the effect of light integrator, improves the multiple shadow phenomenon of light fixture that causes when the LED spot light is a plurality of to be used effectively.

Come mounted LEDs high power shot-light according to above-mentioned designed optical lens, not only improved the inhomogeneities of hot spot, and effectively promoted the brightness of LED light fixture, increased the high efficiency of light energy.

Description of drawings

Fig. 1 is the light lens front view.

Fig. 2 is the light lens side view.

Fig. 3 is a decomposition assembling schematic diagram of the present utility model.

Number in the figure: 1 is the high order aspheric surface reflecting surface, and 2 is the parabolic reflector face, and 3 is face shield, 4 is lamp base, and 5 is the shot-light pedestal, and 6 is the light source pcb board, 7 is components and parts, and 8 is electric wire, and 9 is the aluminium alloy lamp housing, 10 is LED, 11 is the LED substrate, and 12 is connecting screw, and 13 is light lens, 14 is the shot-light gland, and 15 is fixed screw.。

The specific embodiment

With LED MR16 shot-light is example, with reference to the accompanying drawings shown in, the utility model comprises the aluminium alloy lamp housing, nonpolarity lamp base, three-in-one lens (light lens), led light source pcb board, fixed screw etc.Led light source PCB aluminium base is fixedly mounted on aluminium alloy lamp housing inside by 3 screws, simultaneously, is stained with heat-conducting glue at aluminium base and lamp housing interior bonds place.Three-in-one lens are buckled in 3 LEDs top, and with 3 screws the aluminium circle are fixed on lamp housing need portion, thus the locking lens.Every LEDs power is 1W.

Wherein, 3 high order aspheric surface curved surfaces of the mid portion described in the three-in-one lens are 4 times identical curved surfaces, more excellent being designed to, and the parameter in the expression formula is as follows:

a＝0.3125，b＝-0.009765，c＝-0.05，d＝-0.001。

The paraboloid of revolution reflecting surface of described marginal portion, the more excellent parabolic focal length that is designed to is 0.7mm, and the side focal length is 1.25mm, and the angle of inclination is-8 degree, and the out of focus distance is-0.5mm.This parabola can have desirable angle compression to LED luminous energy, and improves the inequality of hot spot.

In the described face shield, in the cellular sphere array, the radius of each sphere is 1mm, forms light integrator, makes LED penetrate light behind mutual superposition on the shadow surface, and the inhomogeneities of light is effectively compensated.

Claims (4)

1. high-capacity LED shot-light, mainly by the light source pcb board, the light lens that the PMMA material is synthetic, the aluminium alloy lamp housing, with the lamp base of polarity, constant-current driving power supply is formed; It is characterized in that: the light source pcb board is an aluminium sheet, and 3 high-capacity LEDs of series connection are housed on it, and every LEDs is by the light lens outgoing beam; The light source pcb board is combined closely by screw and aluminium alloy lamp housing; Light lens is fixed via screw by an aluminium circle and aluminium alloy lamp housing; The light source pcb board is by constant-current drive circuit and effective electric connection of lamp base two ends; Described light lens is a three-in-one compound lens, and wherein, mid portion is three high order aspheric surface reflectings surface corresponding to three LEDs places, and its expression formula is:

$Z=\frac{a{r}^2}{1+\sqrt{1+b{r}^2}}+c{r}^2+d{r}^4$

Here r ²=x ²+ y ²Be radius;

The marginal portion is the parabolic reflector face; At high order aspheric surface and paraboloidal front is circular mask, and this face shield is a cellular sphere array of arranging, and forms light integrator.

2. high-capacity LED shot-light according to claim 1 is characterized in that in the expression formula of described high order aspheric surface reflecting surface a=0.3125, b=-0.009765, c=-0.05, d=-0.001.

3. high-capacity LED shot-light according to claim 1, it is characterized in that the parabolic reflector face at described edge is: focal length is 0.7mm, and the side focal length is-1.25mm, and the inclination angle is-8 degree, and the out of focus distance is-0.5mm.

4. high-capacity LED shot-light according to claim 1, the radius that it is characterized in that the single sphere in the described face shield is 1mm.

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