Method for designing free curved-surface reflector for illumination in annular region

Abstract

The invention discloses a method for designing a free curved surface reflector for illumination in an annular region. The design method educes an algorithm for generating a curved surface of an illuminating reflector in the annular region through information data such as an illumination range of the annular region of an illumination target, a diameter of the reflector, the distance between the bottom of the reflector and the target illumination surface, the distance between the bottom of the reflector and a light source surface, and the like to finish primary design of the curve of the reflector, and the uniformity of the illumination surface and the efficiency of luminous energy are optimized by using a multi-iteration method. The method for designing the free curved-surface reflector for illumination in the annular region has the main advantages that: (1) the range of the illumination surface of the annular region, the distance between the bottom of the reflector and the light source, the distance between the bottom of the reflector and the illumination surface, and the diameter of an annular light source can be set according to actual structural requirement; and (2) according to the structural requirement, the curved surface of the reflector can be obtained by using the curved surface generating algorithm, and higher utilization ratio of the luminous energy and the uniformity of the illumination surface can be guaranteed.

Description

technical field [0001] The invention relates to the technical fields of non-imaging reflection theory, specular reflection principle and annular area illumination. Specifically, it is a design method of a free-curved surface reflector for illumination of an annular area. The invention is suitable for designing a light reflector that realizes lighting in a designated annular area by using different light sources and optical mechanical structures. Background technique [0002] The design of the free curve reflector is to use the principle of mirror reflection to design a specific curve of the reflector according to the specific light source configuration, optical mechanical structure and desired lighting effect to meet the lighting requirements. In a lighting system with a reflector, the light emitted by the light source does not directly irradiate the lighting surface, but reaches the lighting surface after being reflected by the reflector. In this way, for the same light s...

AI Technical Summary

Problems solved by technology

However, for special lighting requirements such as rings and strips, the combination of traditional concave mirrors and light sources cannot be directly completed, and light blocking methods are often used, which greatly reduces the utilization of light sources and increases the complexity of manufacturing.

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