High-power LED secondary optical lens

Abstract

The invention discloses a secondary optical lens device used for a high-power LED point light source, which comprises a lower part, a middle part and an upper part and is characterized in that a plurality of supporting legs are taken as the lower part and fixed with a base plate; the middle part is an elliptical cylinder, the bottom surface of which is provided with two circular arcs which are convex downwards and used for locating an LED, and the bottom surface of the elliptical cylinder is also provided with a circular arc shaped cylinder that is concave inwards; the upper part is a composite light-emitting surface formed by three curved surfaces which are smoothly connected with each other, and the whole composite light-emitting surface is a long ellipsoid. The secondary optical lens device leads the round lighting of the whole LED point light source to be transformed into uniform strip giant-scale lighting, so that an LED street lamp can provide uniform lighting along the direction extending along the street, and no waste and pollution of light exists at the roadside and house side, thus the light can be reasonably distributed and the effective utilization rate of light can be improved.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to a high-power LED lighting secondary optical lens. Background technique [0002] Under the theme of the new era of environmental protection and energy saving, the new light source - high-power LED lighting is becoming more and more popular around the world. A great revolution in human history has come. [0003] As a product of a new application field, LED new light source has its own excellent quality, but its application in the field of lighting to replace traditional sodium lamps and fluorescent lamps still has its limitations and parts that need to be improved. Due to the small size and small light-emitting surface, the irradiated area is also limited due to the directionality of its light emission. Therefore, in actual lighting applications, it is expected to obtain a lens or lens assembly to control and solve the optical problems of LED lighting, which can change The point light...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-power LED secondary optical lens, which is used to solve the optical problems of LED lighting, so that the irradiation of LED point light sources can be evenly distributed according to the requirements, the irradiation range can be changed in the plane direction, the utilization efficiency can be improved, and the light source can be reduced. Waste and environmental light pollution, while solving glare, stray light, etc.

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