Butterfly tracking system lens focusing method

A tracking system and lens technology, applied in the field of lens focusing, can solve the problems of limited adjustment parameters, low adjustment accuracy, unexplained electronic control system detection, etc., and achieve the effect of saving time and improving focusing efficiency

Active Publication Date: 2016-07-06
ORIENTAL GREAT OCEAN NEW ENERGY TECH DEV CO LTD
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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

Method used

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  • Butterfly tracking system lens focusing method
  • Butterfly tracking system lens focusing method
  • Butterfly tracking system lens focusing method

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Embodiment Construction

[0031] combine figure 1 As shown, the lens focusing method of the butterfly tracking system includes:

[0032] (1), a light guide plate and a camera are arranged on the center line of the butterfly tracking system, and the light guide plate is composed of point light sources that can be turned on / off independently;

[0033] (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 of the normal vector and the butterfly lens parabolic equation Angle, get the adjustment angle of the lens;

[0034] (3) According to the relationship between the slope of the lens surface and the normal vector, the least square method is used to fit the tangent of the mirror angle, and the angle is compared with the required lens angle. The difference is the adjustment amount of the lens.

[0035] In step (2), the point light sources...

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Abstract

The application discloses a butterfly tracking system lens focusing method comprising the steps that (1) a light guide plate and a camera are arranged on the center line of a butterfly tracking system, and the light guide plate is composed of spot light sources which can be independently turned on / off; (2) a normal vector corresponding to each pixel point in the camera is calculated according to the determined spot light source coordinates, lens reflection point coordinates and the coordinates of the camera, and the adjusting angle of a lens is obtained according to the inclined angle of the normal vector and the normal vector of a butterfly lens parabolic equation; and (3) a lens surface angle tangent is obtained through fitting by utilizing a least square method according to the relationship between the lens surface slope and the normal vector, the angle is compared with a required lens angle and the difference size is the adjusting quantity of the lens. The method comprises the advantages that the error angle of the lens can be accurately calculated; time for obtaining measurement data required by lens focusing can be reduced; and the method is suitable for batch focusing. Time can be saved and focusing efficiency can be enhanced.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/183
CPCG02B7/183
Inventor 李勋武王振声
Owner ORIENTAL GREAT OCEAN NEW ENERGY TECH DEV CO LTD
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