CN202452188U - Diffusion type light-emitting diode (LED) lamp - Google Patents

Abstract

The utility model discloses a diffusion type light-emitting diode (LED) lamp. The diffusion type LED lamp comprises a base, a packaging resin and a tooth-shaped epitaxial slice, and an LED chip is generated on the tooth-shaped epitaxial slice. Compared with LED lamps in prior art, the diffusion type LED lamp has the advantages that a half-value angle of the diffusion type LED lamp can reach to 105 degrees, the luminous intensity is free from negative effects of a scattering agent and a lens, and the original luminous intensity of the LED lamp is maintained.

Description

A kind of diffusion type LED lamp

Technical field

The utility model relates to a kind of LED lamp, is specifically related to a kind of diffusion type LED lamp.

Background technology

Excellent properties such as that the LED light fixture has is energy-efficient, long service life are widely used in various fields, and the lighting angle of LED is generally-90 °～+ 90 °, but in order to satisfy various functions, need demands of different be arranged to the wide lighting angle of LED.The brightness of existing LED lamp has positive connection with its luminous intensity, and the light angle of LED lamp is more little, and its brightness is high more; Correspondingly, angle is big more, and brightness is low more.For example, scatter-type LED lamp, the visual angle is bigger, and half-value angle is 45 °～90 ° or bigger, but it uses more a large amount of scattering diluents, causes luminous intensity to reduce greatly; Or change the LED lighting angle in the method that led chip adds lens, because of having added the light output that lens can reduce LED, reduced the luminous intensity of LED lamp equally.

Summary of the invention

Given this, the purpose of the utility model is to provide a kind of half-value angle big, and the high diffusion type LED lamp of luminous intensity.

For solving the problems of the technologies described above, the utility model changes the luminous direction of LED lamp through the shape that changes epitaxial wafer.The utility model provides a kind of diffusion type LED lamp, comprises pedestal, potting resin and profile of tooth epitaxial wafer, on the profile of tooth epitaxial wafer, generates led chip.

The side of the tooth of said profile of tooth epitaxial wafer is the pyramid of isosceles triangle.

Preferably, the tooth of profile of tooth epitaxial wafer is to be square the end.

Preferably, the angle on the side of the tooth of profile of tooth epitaxial wafer and ground is 30 °～60 °.

Preferably, said angle is 45 °.

Compared with prior art, the half-value angle of the utility model can reach 105 °, and luminous intensity does not receive the negatively influencing of scattering diluent and lens, has kept the original luminous intensity of LED lamp.

Description of drawings

Fig. 1 is this novel diffusion type LED lamp side view.

Fig. 2 is this novel diffusion type LED lamp vertical view.

Reference numeral 1:LED chip; 2: the profile of tooth epitaxial wafer; 3: pedestal; 4: potting resin.

The specific embodiment

Describe below in conjunction with Fig. 1 and Fig. 2 and specific embodiment.

Embodiment 1:

Profile of tooth epitaxial wafer 2 is installed on the pedestal 3 of LED lamp, and big or small identical, the bottom surface of each tooth of this profile of tooth epitaxial wafer 2 are 45 ° for dihedral angle square, that the side is isosceles triangle, side and bottom surface.On profile of tooth epitaxial wafer 2, generate led chip 1, at last with potting resin 4 encapsulation.The half-value angle of energising back LED lamp reaches 90 °.

Embodiment 2:

Profile of tooth epitaxial wafer 2 is installed on the pedestal 3 of LED lamp, and big or small identical, the bottom surface of each tooth of this profile of tooth epitaxial wafer 2 are 30 ° for dihedral angle square, that the side is isosceles triangle, side and bottom surface.On profile of tooth epitaxial wafer 2, generate led chip 1, at last with potting resin 4 encapsulation.The half-value angle of energising back LED lamp reaches 75 °.

Embodiment 3:

Profile of tooth epitaxial wafer 2 is installed on the pedestal 3 of LED lamp, and big or small identical, the bottom surface of each tooth of this profile of tooth epitaxial wafer 2 are 60 ° for dihedral angle square, that the side is isosceles triangle, side and bottom surface.On profile of tooth epitaxial wafer 2, generate led chip 1, at last with potting resin 4 encapsulation.The half-value angle of energising back LED lamp reaches 105 °.

Only be the preferred implementation of the utility model below, should be pointed out that above-mentioned preferred implementation should not be regarded as the restriction to the utility model, the protection domain of the utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in spirit that does not break away from the utility model and scope, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (5)

1. a diffusion type LED lamp comprises pedestal (3) and potting resin (4), it is characterized in that said LED lamp also comprises profile of tooth epitaxial wafer (2), on the profile of tooth epitaxial wafer, generates led chip (1).

2. a kind of diffusion type LED lamp according to claim 1 is characterized in that the side of the tooth of profile of tooth epitaxial wafer (2) is the pyramid of isosceles triangle.

3. a kind of diffusion type LED lamp according to claim 2 is characterized in that, the tooth of said profile of tooth epitaxial wafer is to be square the end.

4. a kind of diffusion type LED lamp according to claim 3 is characterized in that the side of the tooth of said profile of tooth epitaxial wafer and the angle on ground are 30 °～60 °.

5. a kind of diffusion type LED lamp according to claim 4 is characterized in that said angle is 45 °.

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