CN201866592U

CN201866592U - Diffuse-reflection LED (light emitting diode) illumination lamp

Info

Publication number: CN201866592U
Application number: CN2010206456513U
Authority: CN
Inventors: 汪福钢
Original assignee: SHANGHAI YAODONG OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: SHANGHAI YAODONG OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-06-15
Anticipated expiration: 2020-12-07

Abstract

The utility model discloses a diffuse-reflection LED illumination lamp. The diffuse-reflection LED illumination lamp comprises a lamp shade and a plurality of LED light-emitting units in the lamp shade, wherein the lamp shade has a diffusion reflection coating on the inner surface; and each LED light-emitting unit is arranged on the edge of the mouth part of the lamp shade, and the light emission direction faces the inner surface of the lamp shade. Compared with the LED illumination lamps of the prior art, the diffuse-reflection LED illumination lamp has the advantages of high illumination uniformity and gentle light beam, and can completely eliminate the glare phenomenon, so that the lamp is a real lamp capable of emitting light without seeing the lamp. The surface frame or the diffuse reflection casing of the lamp is an Al alloy cast or profile, which has the thermal conduction and heat dissipation function, thereby improving the luminous efficiency and prolonging the service life of the lamp.

Description

A kind of diffuse reflection LED lighting

Technical field

The utility model belongs to the lighting technical field, relates to the LED illuminating lamp, relates in particular to a kind of diffuse reflection LED lighting.

Background technology

As a kind of green, hommization, energy-conserving and environment-protective lighting system, the LED illumination is applied in every field more and more.Because single led luminescent device brightness value is smaller, can't directly be used for throwing light on, therefore, a plurality of LED luminescent devices need be gathered together simultaneously luminous to meet the requirement of illumination.So existing LED illuminating lamp all be with a plurality of LED luminescent devices gather together scientifically and rationally carry out luminous, to satisfy the brightness value requirement.Led light source has normal luminous intensity, particularly high-power LED light source is very strong at the work time light that sends, have " dazzle " problem, and the hot spot that irradiates is also even inadequately, problems such as the light that spreads out of appearance, ghost image can't satisfy some illumination and the demanding application of the uniformity.

Summary of the invention

Technical problem to be solved in the utility model provides the diffuse reflection LED lighting of illumination uniformity height and free from glare, to overcome the defective that prior art exists.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of diffuse reflection LED lighting, a plurality of LED luminescent devices that it comprises lampshade and is positioned at lampshade, it is characterized in that: described lampshade inner surface has the diffuse reflection coating, and described each LED luminescent device is arranged on lampshade oral area edge and its direction of giving out light towards lampshade inner surface.

Adopt said structure, the light that each LED luminescent device sends at first is radiated at the lampshade inner surface with diffuse reflection effect, and assemble through lampshade inner surface and to reflect away, like this, not only can reach required luminous flux, and, because the LED luminescent device is not directly outwards to emit beam, but after the diffuse reflection processing by the diffuse reflection coating, outwards emission again, so just the light that makes irradiation come out is softer evenly, and because the non-direct projection function of light, see light and can not see light source, so glare phenomenon can not occur.

In a specific embodiment of the present utility model, described lampshade is bowl-shape lampshade, and each LED luminescent device evenly distributes around lampshade oral area edge circumferentially-spaced.Described diffuse reflector adopts the barium powder to make.

In another specific embodiment of the present utility model, described lampshade is the strip lampshade, and each LED luminescent device evenly distributes along the interval along lampshade oral area dual-side.

In the utility model further improved, described lampshade oral area was equipped with light transmission piece.Described LED luminescent device is tilted to storing.

Adopt technique scheme, the utility model LED lighting compared to existing technology, it is soft and even to have illuminance, can eliminate the advantage of " dazzling light " phenomenon fully.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is elaborated:

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the lampshade structure schematic diagram of embodiment 2.

Among the figure: 101,102-lampshade, 103-fin, 200-diffuse reflector, 300-face shield frame, 400-supporting seat, 500-LED luminescent device, 600-light transmission piece.

The specific embodiment

Embodiment 1

As shown in Figure 1, the lampshade 101 of the diffuse reflection LED lighting of present embodiment is bowl-shape lampshade, and its inner surface scribbles casual emission layer 200, and this diffuse reflector 200 adopts barium powder to make.The light source heat radiation metal face shield frame 300 of ring-type is installed at the oral area edge of lampshade 101, be distributed with LED luminescent device supporting seat 400 on this face shield frame 300 with constant slope, LED luminescent device 500 just is installed on this supporting seat 400, thereby make LED luminescent device 500 with the angular illumination of the best to the casual emission layer 200 of lampshade 100 inside, to reflect from lampshade 100 via diffuse reflector 200 then.In addition, on metal face shield frame 300, light transmission piece 600 is installed also.Light transmission piece 600 can play good protective action, avoids entering of dust, steam.In addition, the back also has the fin 103 of divergent shape on face shield frame 300, and the LED luminescent device 500 that this helps in time dispels the heat.

Adopt technique scheme, on the one hand, can accomplish directly to see the LED luminescent device, make more novel and beautiful of whole LED illuminating lamp from the outside.On the other hand, it also is most important aspect, be exactly the LED luminescent device be not directly outwards to emit beam, but be radiated at earlier on the casual emission layer, launch via the reflection of diffuse reflector then, through the processing of this diffuse reflector, the light that sends is softer evenly again, improve the flexibility and the uniformity of LED illuminating lamp, avoided glare effect.

Embodiment 2

Present embodiment and embodiment 1 different place is, the lampshade 102 of this embodiment is for being drawn into the strip lampshade of section bar, each LED luminescent device 500 along lampshade oral area dual-side along evenly distributing at interval.In the present embodiment, do not have the face shield frame, its oral area edge directly is made into inclination certain angle and into a single integrated structure with lampshade 102, to place LED luminescent device 500.Other structure is identical with embodiment 1, is not repeated here.In order in time to dispel the heat for LED luminescent device 500, back, oral area edge has fin 103, and entire body is the aluminium alloy extrusions housing of heat dissipation metal body.

By foregoing detailed description as can be seen, the utility model LED lighting compared to existing technology has the high and soft advantage of the illumination uniformity, can eliminate " dazzling light " phenomenon fully and scientifically support LED lighting heat sinking function.

Among two embodiment, lampshade adopts bowl-shape lampshade and strip lampshade, except these two kinds of forms, can also adopt other form lampshades such as square lampshade in the above.

But; those skilled in the art will recognize that; the above-mentioned specific embodiment is exemplary; be in order better to make those skilled in the art can understand this patent; can not be interpreted as it is restriction to this patent protection domain; so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope of this patent protection.

Claims

1. diffuse reflection LED lighting, a plurality of LED luminescent devices that it comprises lampshade and is positioned at lampshade, it is characterized in that: described lampshade inner surface has the diffuse reflection coating, and described each LED luminescent device is arranged on lampshade oral area edge and its direction of giving out light towards lampshade inner surface.

2. diffuse reflection LED lighting according to claim 1 is characterized in that: described lampshade is bowl-shape lampshade, and each LED luminescent device evenly distributes around lampshade oral area edge circumferentially-spaced.

3. diffuse reflection LED lighting according to claim 1 is characterized in that: described lampshade is the strip lampshade, and each LED luminescent device evenly distributes along the interval along lampshade oral area dual-side.

4. diffuse reflection LED lighting according to claim 1 is characterized in that: described lampshade is square lampshade, and each LED luminescent device evenly distributes at interval along lampshade oral area four edges.

5. according to the described diffuse reflection LED of the arbitrary claim of claim 1 to 4 lighting, it is characterized in that: adopt the barium powder to make according to described diffuse reflector.

6. diffuse reflection LED lighting according to claim 1 is characterized in that: described lampshade oral area is equipped with light transmission piece.

7. diffuse reflection LED lighting according to claim 1 is characterized in that: described LED luminescent device tilt alignment lampshade inner surface is put.