semiconductor lighting device

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...

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.

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