semiconductor lighting device

A lighting device and semiconductor technology, applied in lighting devices, components of lighting devices, semiconductor devices of light-emitting elements, etc., can solve problems such as insufficient softness of light, competition in lighting effects, poor brightness uniformity, etc.

Active Publication Date: 2021-04-20
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods alleviate the glare of packaged white LEDs to a certain extent, but a lot of light energy is lost due to multiple interface reflection / refraction and various materials’ absorption of light
Compared with conventional packaged white LEDs, the luminous efficiency of semiconductor lighting devices manufactured by the above two methods is seriously reduced. Lighting source competition
[0005] Therefore, at present, semiconductor lighting devices still have the above-mentioned problems such as insufficient softness and uniform brightness. In addition, the price of LED is high, and there is no advantage in chromaticity consistency, so it is difficult to popularize and apply in the field of indoor lighting.

Method used

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Embodiment approach

[0032] see figure 1 , the semiconductor lighting device 1 provided by the embodiment of the present invention includes: a housing structure 10, a transparent protective cover 12, and an LED light source 13. The housing structure 10 and the transparent protective cover 12 are opposite and interlocked to form a hollow space (not marked). The LED light source 13 is arranged on the housing structure 10 in the hollow space.

[0033] The housing structure 10 includes a reflection unit 11 and a fixing unit 15, the reflection unit 11 and the fixing unit 15 are successively connected to form the overall housing structure 10, and the reflection unit 11 and the fixing unit 15 can also be Two different elements are interconnected to form. The reflection unit 11 has a reflection surface 111 facing the hollow space, and the reflection surface 111 is a Lambertian-like reflection surface. The LED light source 13 is disposed on the fixing unit 15 . The light emitting surface of the LED lig...

Embodiment 1

[0045] see figure 2 , is a schematic structural diagram of the semiconductor lighting device 1 provided by Embodiment 1 of the present invention. The semiconductor lighting device 1 of the present embodiment comprises a housing structure 10, a transparent protective cover 12, an LED light source 13, a driving and control power supply 14, a wire 17 and a radiator 16, and the housing structure 10 is opposite to the transparent protective cover 12. And interlocking to form a hollow space (not marked). The LED light source 13 is arranged on the housing structure 10 in the hollow space. The drive and control power supply 14 , wires 17 and radiator 16 are embedded in the housing structure 10 . The LED light source 13 and the drive and control power supply 14 are electrically connected through wires 17 . The driving and controlling power supply 14 provides electric energy for the LED light source 13 and controls its working mode. The radiator 16 is arranged in close contact with...

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Abstract

The present invention provides a semiconductor lighting device, comprising: a casing structure and an LED light source, the LED light source is fixed to the casing structure, the casing structure includes a reflective surface, and the reflective surface is a Lambertian-like reflective surface , the light emitting direction of the LED light source points to at least a part of the reflective surface, the LED light source forms a uniform illumination distribution in whole or in part on the reflective surface, and through the Lambertian-like reflective surface half-space solid angle Reflection to obtain lighting effects with soft glow and uniform brightness in whole or in part. The semiconductor lighting device provided by the invention has soft luminescence, relatively uniform brightness in whole or part, and good lighting effect.

Description

technical field [0001] The invention relates to a semiconductor lighting device. Background technique [0002] Light Emitting Diode (LED for short) has become another core component that promotes the rapid development of electronic information technology after the integrated circuit (IC) due to its unique advantages such as high luminous efficiency, long life, environmental protection, and good weather resistance. The LED industry has become a pillar industry of my country's national economy. With the continuous improvement of LED performance, its application fields are also rapidly expanding, the most important of which are semiconductor lighting and LED display. The development of semiconductor lighting and LED display technology is of great significance to saving energy, protecting the environment, improving people's quality of life, and enhancing my country's sustainable development capabilities. At the same time, semiconductor lighting and LED display industries play a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21K9/20F21V7/04F21Y115/10
CPCF21V7/04
Inventor 罗毅韩彦军
Owner TSINGHUA UNIV
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