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Non-imaging LED (light emitting diode) collimation system with compact structure

A compact, non-imaging technology, applied in lighting devices, light sources, and components of lighting devices, etc., it can solve the problems of large divergence angle of light source, low utilization rate of light energy, and non-concentration of energy, and achieve uniform distribution of emitted light energy. , Good uniformity, the effect of reducing light energy loss

Inactive Publication Date: 2013-06-05
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a compact non-imaging LED collimation system in order to solve the problems of the existing LED lighting system with complex structure, large light source divergence angle and non-concentrated energy, resulting in low utilization rate of light energy

Method used

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  • Non-imaging LED (light emitting diode) collimation system with compact structure
  • Non-imaging LED (light emitting diode) collimation system with compact structure
  • Non-imaging LED (light emitting diode) collimation system with compact structure

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specific Embodiment approach 1

[0021] Specific implementation mode 1. Combination figure 1 and figure 2 Description of this embodiment, a compact non-imaging LED collimation system, the system includes an LED collimation lens 1, an LED chip 2, an LED substrate 3 and an LED packaging shell 4, the LED chip 1, the LED substrate 3 It is packaged into an integral structure with the LED packaging shell 4; the LED collimating lens 1 is composed of four surfaces, the first surface is the incident surface, the second surface 5 is a combination of the internal total reflection surface and the refraction surface, and the third The surface is a reflection surface, and the fourth surface is a combination of an internal total reflection surface and a refraction surface. The light emitted by the LED chip 2 enters the second surface 5 after passing through the first surface of the LED collimator lens 1, and passes through the The light refracted in the central part of the second surface 5, the refracted light is directly...

specific Embodiment approach 2

[0024] Specific embodiment two, combine Figure 3 to Figure 7 Describe this implementation mode, this implementation mode is an embodiment of a kind of compact non-imaging LED collimation system described in the first specific implementation mode:

[0025] First, according to the requirements of the target user for the light output angle, energy, and uniformity of the collimation system, the size and divergence angle of the selected LED light source can be known. System caliber D. combine image 3 , select initial points A, C, S, M, and construct a quadratic curve passing through points A and C. Light AS is refracted at point A on the upper surface and then reflected at point D (unknown) on the lower surface to intersect at point C on the upper surface. Similarly, BS is refracted at point B on the upper surface and then reflected at point E (unknown) on the lower surface to intersect at point C on the upper surface. The coordinates of D and E can be obtained by using the p...

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Abstract

The invention relates to a non-imaging LED (light emitting diode) collimation system with a compact structure and relates to the field of non-imaging LED lighting, and the system can be used for solving the problem of low light energy utilization efficiency caused by the complex structure, the large light source divergence angle and the non-concentration of energy in the existing LED lighting system. The system comprises an LED collimating lens, an LED chip, a lens, an LED substrate and an LED packaging shell, wherein the LED chip, the LED substrate and the LED packaging shell are packaged into an integral structure; the LED collimating lens is composed of four surfaces, a first surface is an incidence surface, a second surface and a fourth surface are respectively a complete reflective surface and a refracting surface, and the third surface is a reflecting surface; and the lights sent by the LED chip are incident to the reflection of the second surface after passing through the firstsurface of the LED collimating lens, and lights at edges of the second surface are reflected completely on the second surface; the reflected lights are incident to the third surface, and the lights are reflected by the third surface and then are incident to the fourth surface. The system provided by the invention has the advantage that the energy distribution of the emergent lights is uniform.

Description

technical field [0001] The present invention relates to the field of non-imaging LED lighting. Background technique [0002] LED has the advantages of low driving voltage, small size, light weight, low power consumption, long life, excellent color tone and orientation. With the continuous progress of semiconductor LED chip materials and preparation technology, the luminous efficiency of LED has increased rapidly. It has a good application prospect. LED is expected to replace incandescent lamps and fluorescent lamps as the fourth-generation light source, bringing a revolution to the lighting industry. The most concerned issue in the application of LEDs in lighting sources is how to improve the efficiency of the entire illuminator and how to make the light distribution meet the light distribution requirements of the application. Therefore, it is necessary to simulate and design the optical structure of the LED package, so that the light from the package interface The loss be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V5/04F21Y101/02
Inventor 刘华卢振武赵会富荆雷
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI