CN103032738A

CN103032738A - LED (Light-Emitting Diode) lamp and lampshade

Info

Publication number: CN103032738A
Application number: CN2012105600633A
Authority: CN
Inventors: 吕红兵; 胡瑞艇
Original assignee: Jiangsu L & Gr Lighting Co Ltd
Current assignee: Jiangsu L & Gr Lighting Co Ltd
Priority date: 2012-12-21
Filing date: 2012-12-21
Publication date: 2013-04-10

Abstract

The invention discloses an LED (Light-Emitting Diode) lamp and a lampshade. The LED lamp comprises a lamp holder, an LED lamp module and the lampshade, wherein the lamp holder, the LED lamp module and the lampshade are fixedly connected together; the lamp holder comprises an encapsulating shell, a power supply controller, an electric wire interface and a lamp fixing port; the LED lamp module comprises an LED lamp core unit and an aluminum substrate; the aluminum substrate is provided with a reflecting film and radiating holes; and triangular pyramid-shaped optical structures of which each face is in the form of an equilateral triangle or an isoceles triangle are distributed inside and outside the lampshade. Through the triangular pyramid-shaped optical structures of which each face is in the form of an equilateral triangle or an isoceles triangle, discrete point light sources emitted by the LED luminous module are effectively changed into a surface light source, so that light rays irradiated onto human eyes are more soft; and through repeated reflection of the triangular pyramid-shaped optical structures of which each face is in the form of an equilateral triangle or an isoceles triangle, light rays can sink into the optical structure, the light transmittance of the lampshade is over 95 percent, reflection of light by the lampshade is reduced, and the luminous efficiency is increased finally.

Description

A kind of LED lamp and lampshade

Technical field

The invention provides a kind of LED lamp and lampshade, belong to especially technical field of semiconductor illumination.

Background technology

In recent years, the LED lamp has obtained certain application in the commercial lighting field, based on advantages such as energy-saving and environmental protection, high efficiency and long-lives, if its price can be comparable with the traditional lighting lamp, will be widely used future, can throw light on the mankind and produce revolutionary impact.Except the price height, the brightness of LED lamp is high, and light is strong, and is dazzling, and the people cannot be looked at straight.Mainly containing at present three kinds of methods makes the spot light characteristic of LED change area source into: the one, use light diffusing agent, although the light of light diffusing agent material own can see through, but it still can produce certain impact to light, such as light absorption or light reflection, the light decay of comparing the light diffusing agent generation with the same Transparent lamp shade that is left intact can reach 20%～50%, and actual light decay degree is relevant with employed light diffusing agent material; The 2nd, lampshade to be carried out frosting technology process, it to light decay loss meeting point, still also can work as 15%～30% degree than light diffusing agent; The 3rd, Transparent lamp shade is done certain physical deformation, it is arranged to a divergent lens, light decay can be reduced to about 5% like this.Although more than front two kinds of three kinds of methods also can make divergence of beam, final LED lampshade light transmittance is all very little, light efficiency is very low, and process costs is also higher.

The characteristics little based on the Transparent lamp shade light decay and cost is low, people have carried out long-term exploration to it, have proposed various solutions.For example, Chinese patent literature discloses a kind of invention LED lamp and Transparent lamp shade [application number: 201210169516.X] thereof, it comprises lamp socket, be provided with the LED luminescence component at lamp socket, the LED direction of illumination is provided with the Transparent lamp shade that is fixed on the lamp socket, lampshade is provided with optical texture and the frosted layer that light source is dispersed, and namely its optical texture is shaped as ripple glaze.

Such scheme can make divergence of beam to a certain extent, but still there is very large deficiency in this scheme to the improvement of lampshade, design such as ripple glaze and frosted layer has accomplished to make divergence of beam on the one hand, but it is not ideal enough to disperse effect, LED light concentration degree and light reflectivity are still higher, cause LED light effect lower, be difficult for being widely used.

Summary of the invention

The objective of the invention is for the problems referred to above, on the prerequisite that cost of manufacture does not increase, provide a kind of design more reasonable, the spot light that LED lamp module is sent changes over area source, softer LED lamp when making light shine human eye.

Another object of the present invention is for above problem, provides a kind of smooth diversity stronger, the LED lampshade that light reflectivity is lower.

The present invention seeks to be achieved through the following technical solutions: this LED lamp, comprise lamp socket, at lamp socket LED lamp module is installed, be fixed with lampshade at lamp socket.

Described lamp socket comprises package casing, power-supply controller of electric, electrical wire interface, light fixture fixed port, aluminium base, is attached with optical reflection film on the aluminium base, and has louvre on the aluminium base.

Described LED lamp module comprises LED wick unit, and the LED module is installed on the aluminium base that has louvre and be attached with optical reflection film.

Described lampshade is inner to be uniform-distribution with the optical texture that each face is the triangular pyramid of equilateral or isosceles triangle with the outside.

Described lampshade, aluminium base can be fixed together by a kind of special glue and aluminium alloy package casing.

With technology arranged compare, this LED lamp and lampshade advantage are: 1, when the LED illuminating module is radiated at discrete spot light on the lampshade, be that the discrete spot light that the optical texture of the triangular pyramid of equilateral or isosceles triangle sends the LED illuminating module effectively becomes area source by each face, thereby make the light that shines human eye more soft; 2, this optical texture is except effective disperse function that can play light, what is more important is the triangular pyramid design of equilateral or isosceles triangle by each face, obtain repeatedly the light reflection, light is trapped in this optical texture, make the lampshade light transmittance greater than 95%, finally improved light extraction efficiency.

Description of drawings

Fig. 1 is the perspective view of apparatus of the present invention.

Fig. 2 is the perspective view of apparatus of the present invention lampshade.

Fig. 3 is the bright dipping light path schematic diagram of apparatus of the present invention lampshade.

Fig. 4 is the sunken light light path schematic diagram of apparatus of the present invention lampshade.

The specific embodiment

The present invention is described further below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, this LED lamp comprises lamp socket 1; Be provided with LED lamp module 2 at lamp socket 1; Be fixed with lampshade 3 at lamp socket 1.Comprise package casing 4 at described lamp socket 1; Power-supply controller of electric 5; Aluminium base 6; Electrical wire interface 7; Light fixture fixed port 8.Described LED lamp module 2 comprises LED wick unit 21, and LED lamp module is installed on the aluminium base 6.Be attached with optical reflection film 61 on the described aluminium base 6; Louvre 62.A kind of special glue of described package casing 4, aluminium base 6 and lampshade 3 usefulness is fixed together.

A kind of lampshade for the LED lamp, as shown in Figure 2, described lampshade 3 inner surfaces are furnished with internal optics structure 31, lampshade 3 outer surfaces are distributed with external optical structure 32, described internal optics structure 31 and external optical structure 32 are interspersed, and described internal optics structure 31 is the optical texture of the triangular pyramid of equilateral or isosceles triangle for each face with external optical structure 32.

Particularly, as shown in Figure 3, when LED lamp module 2 is radiated at discrete spot light on the lampshade 3, the optical texture that by each face is the triangular pyramid of equilateral or isosceles triangle produces repeatedly refraction, and because refraction angle is not identical, the rising angle of emergent ray is also different as a result, and the discrete spot light that sends of LED lamp module 2 changes over area source the most at last, thereby makes the light when shining human eye more soft.

More particularly, as shown in Figure 4, each face is that the internal optics structure of triangular pyramid of equilateral or isosceles triangle is except the effect that can play light and disperse, what is more important is the design of the inside triangular pyramid of equilateral or isosceles triangle by each face, produces Multi reflection, and light is trapped in this optical texture, reduced lampshade to reflection of light, make the lampshade light transmittance greater than 95%, light extraction efficiency further improves, and finally makes the more step raising of energy-saving effect of LED lamp.

Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications, replenish or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims

1. a LED lamp and lampshade comprise lamp socket (1), LED lamp module (2) and lampshade (3), and described lamp socket (1), LED lamp module (2), lampshade (3) are fixed together; Described lamp socket (1) comprises package casing (4), power-supply controller of electric (5), electrical wire interface (7), light fixture fixed port (8); Described LED lamp module (2) comprises LED wick unit (21), aluminium base (6), and aluminium base (6) is provided with reflectance coating (61) and louvre (62); It is characterized in that: described lampshade (3) inner surface is furnished with internal optics structure (31), and lampshade (3) outer surface is distributed with external optical structure (32).

2. LED lamp according to claim 1 and lampshade, it is characterized in that: described internal optics structure (31) and external optical structure (32) are interspersed.

3. LED lamp according to claim 1 and 2 and lampshade, it is characterized in that: internal optics structure (31) is the triangular pyramid of equilateral or isosceles triangle for each face.

4. LED lamp according to claim 1 and 2 and lampshade, it is characterized in that: external optical structure (32) is the triangular pyramid of equilateral or isosceles triangle for each face.

5. according to claim 1 to 4 each described LED lamp and lampshades, it is characterized in that: the material of internal optics structure (31) and external optical structure (32) is lucite.

6. LED lamp according to claim 1 and lampshade, it is characterized in that: described lampshade (3) light transmittance is greater than 95%.