Lens assembly and LED (Light-Emitting Diode) lamp with lens assembly

Abstract

The invention provides a lens assembly, which is used for optically processing and emitting light rays emitted by an LED (Light-Emitting Diode) light source. The lens assembly is characterized by comprising a first curved surface, a second curved surface and a textured surface, wherein the first curved surface is a spherical surface, is positioned on the inner side of the lens assembly, and is used for transmitting the light rays emitted from the LED light source into the lens assembly; the second curved surface is positioned on the outer side of the lens assembly, and is used for emitting the light rays emitted from the LED light source; the textured surface is connected with the first curved surface and the second curved surface. The invention further provides an LED lamp applying the lens assembly. In the LED lamp, the light rays emitted by the LED light source are subjected to optical processing through the lens assembly. The LED lamp has a large floodlight angle, so that the light utilization ratio is increased. Moreover, a good floodlight effect is achieved, and the uniformity and average irradiation required in illumination are met.

Description

technical field [0001] The present invention relates to the lighting field, in particular to a lens assembly and an LED (light emitting diode, light-emitting secondary light) lamp with the lens assembly. Background technique [0002] Most of the existing surround-illuminated floodlight LED lamps use reflective cups for light distribution. However, the use of reflective cups for light distribution will lead to greater light intensity along the LED optical axis, so the light distribution of reflective cups Floodlight always has a high light intensity in the middle part. In order to solve the problem of high light intensity in the middle part, dense small bumps (or concave holes) are often made on the exit surface of LED lamps to achieve the floodlight effect, or the exit surface friction treatment is used to achieve floodlight. However, the floodlight effect achieved by these processing methods is not uniform enough, and the floodlight angle is generally small, and the utiliz...

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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a lens assembly with a large flood angle and uniform flood light, which solves the problems of insufficient uniform flood light effect, small flood light angle and low light utilization rate, and satisfies the Uniformity and average illuminance required for lighting

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