Translated Titles

Study on Nonlinearity and Asymmetry of Polygonal Mirror Scanning


胡居廣(Jü-Guang Hu);李學金(Xue-Jin Li);張百鋼(Bai-Gang Zhang);徐德剛(De-Gang Xu);王鵬(Peng Wang);姚建銓(Jian-Quan Yao)

Key Words

轉鏡-振鏡二維掃描 ; 非線性掃描 ; 非對稱性掃描 ; 光斑 ; Polygonal mirror scanning ; Nonlinear scanning ; Asymmetric scanning ; Light spots



Volume or Term/Year and Month of Publication

31卷3期(2004 / 03 / 01)

Page #

26 - 28

Content Language


Chinese Abstract


English Abstract

An analytical expression for spot moving speed on the former vibrating mirror of the polygonal mirror scanning system objective is derived from geometrical optical principle. The structural characteristics of the system are the origin for creating scanning nonlinearity and asymmetry, and they will cause image distortion. The numerical calculation results for the designed polygonal mirror system with 40 planes, a radius of 40mm and rotating speed of 23437.5r/min show that the maximum speed difference in line scanning is about 6mIs and time symmetric center has been changed from 32μs to about 30.7477μs. These results can be used as reference for image distortion correction.

Topic Category 工程學 > 電機工程