公开(公告)号：WO2010033342A3

公开(公告)日：2010-06-03

申请号：PCT/US2009054654

申请日：2009-08-21

Applicant: MICROVISION INC ,  HOLMES STEVE ,  ROLLINS CLINT CHARLES ,  BROWN MARGARET K ,  SCHAAF MICHAEL LEE ,  ROTHAAR BRUCE C ,  JACKSON ROBERT JAMES ,  MCLAUCHLAN LIFFORD ,  MEHRUBEOGLU MEHRUBE ,  SCHNEIDER GREGORY

Inventor： HOLMES STEVE ,  ROLLINS CLINT CHARLES ,  BROWN MARGARET K ,  SCHAAF MICHAEL LEE ,  ROTHAAR BRUCE C ,  JACKSON ROBERT JAMES ,  MCLAUCHLAN LIFFORD ,  MEHRUBEOGLU MEHRUBE ,  SCHNEIDER GREGORY

IPC: G02B26/08

CPC classification number: G02B26/121 ,  G05B13/024 ,  H02K41/0354 ,  H02P29/50

Abstract: A scanning beam projection system (100) includes a scanning mirror (116) having a fast-scan axis and a slow-scan axis. Movement on the slow-scan axis is controlled by a slow-scan scanning mirror control system (130). The control system receives position information describing angular displacement of the mirror. An outer loop of the control system operates in the frequency domain and determines harmonic drive coefficients for a scanning mirror drive signal. An inner loop of the control system operates in the time domain and compensates for a scanning mirror resonant vibration mode at a frequency within the frequency band occupied by the harmonic drive coefficients.

Abstract translation: 扫描光束投影系统（100）包括具有快速扫描轴和慢速扫描轴的扫描镜（116）。 慢扫描轴上的移动由慢扫描扫描镜控制系统（130）控制。 控制系统接收描述反射镜的角位移的位置信息。 控制系统的外环在频域中操作并确定扫描镜驱动信号的谐波驱动系数。 控制系统的内环在时域中操作并且补偿谐波驱动系数占用的频带内的频率处的扫描镜共振模式。

公开(公告)号：WO2010033342A2

公开(公告)日：2010-03-25

申请号：PCT/US2009/054654

申请日：2009-08-21

Applicant: MICROVISION, INC. ,  HOLMES, Steve ,  ROLLINS, Clint Charles ,  BROWN, Margaret K. ,  SCHAAF, Michael Lee ,  ROTHAAR, Bruce C. ,  JACKSON, Robert James ,  MCLAUCHLAN, Lifford ,  MEHRUBEOGLU, Mehrube ,  SCHNEIDER, Gregory

Inventor： HOLMES, Steve ,  ROLLINS, Clint Charles ,  BROWN, Margaret K. ,  SCHAAF, Michael Lee ,  ROTHAAR, Bruce C. ,  JACKSON, Robert James ,  MCLAUCHLAN, Lifford ,  MEHRUBEOGLU, Mehrube ,  SCHNEIDER, Gregory

IPC: G02B26/08

CPC classification number: G02B26/121 ,  G05B13/024 ,  H02K41/0354 ,  H02P29/50

Abstract: A scanning beam projection system (100) includes a scanning mirror (116) having a fast-scan axis and a slow-scan axis. Movement on the slow-scan axis is controlled by a slow-scan scanning mirror control system (130). The control system receives position information describing angular displacement of the mirror. An outer loop of the control system operates in the frequency domain and determines harmonic drive coefficients for a scanning mirror drive signal. An inner loop of the control system operates in the time domain and compensates for a scanning mirror resonant vibration mode at a frequency within the frequency band occupied by the harmonic drive coefficients.

Abstract translation: 扫描光束投影系统（100）包括具有快速扫描轴和慢扫描轴的扫描镜（116）。 慢扫描轴上的移动由慢扫描扫描镜控制系统（130）控制。 控制系统接收描述镜的角位移的位置信息。 控制系统的外环在频域中工作，并确定扫描镜驱动信号的谐波驱动系数。 控制系统的内部环路在时域中工作，并且以谐波驱动系数占据的频带内的频率补偿扫描镜谐振振动模式。