LED (light emitting diode) lens

Abstract

The invention provides an LED (light emitting diode) lens comprising an inner cover (3) covering an LED light source (4), and an outer cover (1) covering the outer side of the inner cover (3), wherein the inner cover (3) and the outer cover (1) are connected with each other in a sealing way to form a sealed cavity; and the outer cover (1) is provided with a curved surface which is matched with the inner cover (3) and used for changing a light path of the LED light source (4). The LED lens also comprises heat radiating liquid (2) which has light transmission performance and is arranged inside the sealed cavity. Comprising the heat radiating liquid (2) with a heat radiating function, the LED lens also has the heat radiating function; and when the LED lens is in use, heat generated by the LED light source can be radiated by the heat radiating liquid (2), and therefore the service life of the lens is prolonged.

Description

technical field [0001] The present invention relates to the technical field of illumination, and more specifically relates to an LED lens. Background technique [0002] Compared with traditional light sources, LED light sources have the advantages of high luminous efficiency, good color rendering, low power consumption, energy saving and environmental protection, high safety and reliability, and long service life. They have been widely used in various lighting fields and are considered by the industry It is the main direction of the lighting source market and has huge market potential. However, since LED is a divergent light source, in practical applications, it is often necessary to cooperate with a lens to achieve the required brightness, illuminance and uniformity requirements. [0003] Patent application No. 200910261795 discloses an LED lens, which is a common single LED light distribution lens currently on the market. Please refer to the attached figure 1 , this fig...

AI Technical Summary

Problems solved by technology

Due to the relatively large size of multiple LED light distribution lenses, the difficulty of mechanical molding is increased, and the above shrinkage phenomenon is prone to occur, which in turn affects the light output effect of the lens; moreover, as the size increases, the volume of the lens increases exponentially, and the input cost is relatively high. High, so the LED lens disclosed in the above patent is only limited to the light distribution of a single LED, not suitable for the light distribution of multiple LEDs, and has poor versatility

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