Lens Focusing Method of Butterfly Tracking System

Abstract

The present application discloses a lens focusing method of a butterfly tracking system, including: (1), setting a light guide plate and a camera on the center line of the butterfly tracking system, the light guide plate is composed of a point light source that can be turned on / off independently (2), according to the determined point light source coordinates, lens reflection point coordinates and camera coordinates, calculate the normal vector corresponding to each pixel in the camera, according to the normal vector and the normal of the butterfly lens parabola equation (3), according to the relationship between the slope of the lens surface and the normal vector, use the least squares method to fit the tangent line of the mirror angle, compare the angle with the required lens angle, the difference is It is the adjustment amount of the lens. The advantages of the method of the invention include: calculating the error angle of the lens relatively accurately; reducing the time for obtaining measurement data required for lens focusing; and being suitable for batch focusing. Save time and improve focusing efficiency.

Description

technical field [0001] This patent relates to the related technical field of lens focusing, in particular to a lens focusing method of a butterfly tracking system. Background technique [0002] Solar energy is one of the ideal energy sources for the future society, and its renewability is a must for energy strategy. At present, the solar thermal power generation technology of solar energy is becoming more and more mature, and has basically met the requirements required for commercial use. Its advantages are continuous power generation, adjustable peaks, and high overall efficiency, but it also has disadvantages such as difficult storage of electric energy and uneven distribution of light energy. [0003] The dish solar thermal power generation system uses a rotating parabolic mirror to concentrate the incident sunlight on the focal point. A solar receiver placed at the focal point collects higher temperature thermal energy to heat the working fluid to drive the steam turbi...

AI Technical Summary

Problems solved by technology

The disadvantage of this patent is that it does not clarify how to detect the adjustment amount of the lens through the electronic control system

The disadvantage of this patent is that the adjustment accuracy is not high

This patent can achieve high-precision adjustment, but the solution is limited by many adjustment parameters, and it is difficult to achieve the ideal state

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