Focusing lamp lens set and corresponding lighting system

Abstract

The invention relates to a focusing lamp lens set. The focusing lamp lens set comprises a first lens and a lens assembly, wherein the space between the first lens and a light source is fixed, the first lens emits all lights of the light source, and the lens assembly is located on the light emitting side of the first lens; the lens assembly comprises one or more concave lenses and one or more convex lenses, wherein the convex lenses are located between the first lens and the concave lenses; the convex lenses and the concave lenses have the same radius and the same refractive index, the convex faces of the convex lenses are opposite to the concave faces of the concave lenses, and the space between the convex lenses and the concave lenses can be adjusted so that different emitting angles canbe obtained. By the adoption of the focusing lamp lens set, the light efficiency is improved, and the irradiation effect is good.

Description

technical field [0001] The invention relates to the field of optics, in particular to a focusing lamp lens group and a corresponding lighting system. Background technique [0002] With the application of LED lights more and more widely, higher requirements are put forward for LED lighting. For example, in shopping malls, counters and other occasions, lamps are required to have soft and smart light to avoid glare and prevent visual pressure on customers. In street lighting, especially in smoggy weather, it is hoped that the light emitted by the lamps can shine far enough and have enough penetrating power. [0003] As we all know, an important factor affecting the light effect is the angle of the outgoing light. In order to meet different light effect requirements, people try to improve the lighting effect by designing different zoom lamp lenses and changing the angle of the outgoing light. At present, the existing zoom lamp lenses mainly include three types: single convex le...

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Problems solved by technology

[0004] Among them, the single convex lens zoom lens shown in Figure 1(a) mainly realizes the change of the light emitting angle by adjusting the distance between the convex lens and the LED light source, and the light efficiency in this way is relatively low; the zoom collimator lens shown in Figure 1(b) Mainly by moving the convex lens close to the direction of the LED light to achieve the large-angle light demand, and through the cooperation of the total reflection surface and the convex lens to achieve the small-angle light demand, although this light distribution method has multiple adjustment capabilities and relatively high light efficiency, but in adjusting During the focusing process, it is easy to cause stratification of the illumination spot due to the inconsistent relationship between the convex lens and the total reflection surface with respect to the light source; the multi-lens combination shown in Figure 1(c) adjusts the light through a series of convex lenses and concave lenses. Although the light distribution method produces clear light spots and good illumination effects, the optical efficiency is low

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