Mirror and homogeneously luminous LED utilizing the mirror

A light-emitting diode and uniform light-emitting technology, applied in optics, lenses, optical components, etc., can solve the problems of reduced luminous efficiency and achieve the effect of increasing the range and reducing the thickness

Active Publication Date: 2008-05-14
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of the design of total reflection and refraction of light, the overall luminous efficiency will be reduced by the loss of multiple reflections and refractions inside the surface light source system.

Method used

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  • Mirror and homogeneously luminous LED utilizing the mirror
  • Mirror and homogeneously luminous LED utilizing the mirror
  • Mirror and homogeneously luminous LED utilizing the mirror

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] According to the mirror body disclosed in the present invention and the light-emitting diode with uniform light emission using the mirror body, because the light intensity of the existing light-emitting diode near the optical axis is too concentrated, the light adjacent to the area near the optical axis is diverged. Please refer to 2 and 3 are the first embodiment of the present invention, including a substrate 21, a light-emitting diode chip 22, and a lens 23. The light-emitting diode chip 22 is arranged on the substrate 21, and the lens 23 is combined in a packaged manner. On the substrate 21 and covering the light-emitting diode chip 22, the surface of the mirror body 23 has a recess adjacent to the periphery of the optical axis 24 to form a diverging surface 25, and the outside of the diverging surface 25 is a light-gathering surface 26; and the diverging surface 25 The thickness increases sequentially outward from the optical axis 24, while the thickness of the ligh...

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PUM

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Abstract

This invention relates to one mirror and the even light diode applied in the mirror, which forms lighting curved surface designed on the circle of the mirror, wherein, the mirror surface maintains the continuous curved surface to make the diode near the light axis high intensity distribution lines by refraction type outside of light axis to make the diode send large area of even light lines.

Description

technical field [0001] The invention relates to a mirror body and a light-emitting diode using the mirror body, which is applied to light-emitting and lighting systems, in particular to a light-emitting diode capable of emitting light uniformly. Background technique [0002] General Conventional LED 10, see Figure 1A , the light emitting diode chip 12 is packaged with a lens 11. The most common lens shape is shown in the figure. The lens 11 is a hemisphere, which can concentrate the light emitted by the light emitting diode chip 12. direction), will be limited to the part near the optical axis 13. Since its energy is relatively concentrated, in the application of the surface light source, the function of the light guide plate 14 must be used to improve the uniformity. However, if the light-emitting diodes 10 are arranged directly under the light guide plate, since the light-emitting area of ​​the light-emitting diodes 10 is relatively small, a considerable number of light-...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01L33/00G02B3/02H01L33/58
Inventor黄添富苏哲暐胡国昌
OwnerIND TECH RES INST