Even high-power light-emitting diode (LED) light source based on reflection and transmission type

Abstract

The invention discloses an even high-power light-emitting diode (LED) light source based on a reflection and transmission type, which comprises a radiator, an LED array light source, an arc reflection board, a full transparent glass plate with a cone-shaped structure and a semi-transparent semi-reflection film. The LED array light source is arranged in the right center of the bottom face of the reflection board, the arc reflection board is tightly adhered to and fixed on the periphery of the radiator, the edge of the full transparent glass plate with the cone-shaped structure is fixedly connected with a lower edge of the arc reflection board, a closed semicircular cavity is formed by the full transparent glass plate with the cone-shaped structure, the radiator and the LED array light source, the semi-transparent semi-reflection film is tightly adhered to the upper surface of the full transparent glass plate with the cone-shaped structure and evenly distributed. The light source uses reflection characteristics of a cone-shaped structure of the semi-transparent semi-reflection film to distribute light, has the advantages of being small and exquisite in structure, small in loss, small in dispersion, even and flexible in light distribution and the like, improves LED light efficiency and improves reliability and practical applicability.

Description

technical field [0001] The invention relates to a uniform high-power LED light source with a reflection-transmission device, in particular to a uniform high-power LED light source based on a reflection-transmission type. Background technique [0002] In recent years, energy saving and environmental protection, and creating a low-carbon society have become the basic policies of countries all over the world. As a new generation of green lighting sources, LED light sources have shown incomparable excellent characteristics of traditional light sources in terms of energy saving and environmental protection. With the continuous improvement of the luminous efficiency of LED, the application of LED is becoming more and more extensive, showing incomparable advantages in terms of energy saving. With the diversification of application occasions, the requirements for light distribution and light efficiency of LEDs in different occasions are also getting higher and higher. [0003] At p...

AI Technical Summary

Problems solved by technology

However, there are a series of disadvantages in this method: the free-form surface lens generally distributes light by changing the local thickness of the lens, which generally cannot solve the problem of dispersion well, and cannot achieve uniform distribution of light intensity on the entire spot surface, and is always bright in the middle , both sides are dark; sometimes in order to achieve a certain light distribution, the lens needs to be made very large and thick, and the path of light passing through the lens is very long, resulting in high light loss; on the other hand, free-form surface lenses generally have serious glare , the strong glare brings inconvenience to people's daily life

In the existing patents, there is a method that proposes that the light is re-reflected through the front reflector and the peripheral curved reflector to achieve the purpose of eliminating glare, but this method is not satisfactory in terms of light distribution and loss

Images