Method for correcting working angle error of digital micromirror, and device

The invention discloses a method for correcting working angle error of a digital micromirror, and device , and the method comprises the steps: correcting image data through an FPGA module based on the FPGA module of a data processing subsystem according to a preset algorithm; according to the correction method for the working angle error of the digital micromirror, decomposing the working angle error e into two parts under the condition that the actual working angle is not readjusted; wherein e=e'+ epsilon' , e' wherein the e' is a correctable error; epsilon' is an incorrectable error. Necessary correction is carried out on the image data through the FPGA, errors of correctable parts are offset in advance, and the splicing position is changed, so that the final splicing result meets the requirement, and the assembly angle adjustment time or the system recovery time is greatly saved. 本发明公开一种数字微镜工作角度误差的修正方法及设备，基于数据处理子系统的FPGA模块，通过FPGA模块对图像数据按照事先设定的算法进行修正处理；本发明的数字微镜工作角度误差的修正方法，在不重新调整实际工作角度的情况下，将工作角度误差e分解成两个部分e＝e'