Surface measurement system with a laser light generator
摘要
A measurement system (10) for accurately measuring the surface geometry of a part in three dimensions includes a laser (22) for emitting a laser beam (20). An objective lens (18) receives the laser beam (20) and expands the received laser beam (20) into a diverged beam. A liquid crystal system (16) is disposed in front of the objective lens (18) with respect to the laser (22) for receiving the diverged beam. The liquid crystal system (16) receives the diverged beam and generates at least one fringe pattern (24) on a surface of a three dimensional part which is to be measured. A computer (12) is in communication with the liquid crystal system (16) to control the pitch and phase of the fringe pattern (24).
申请公布号
US6100984(A)
申请公布日期
2000.08.08
申请号
US19990330916
申请日期
1999.06.11
申请人
CHEN, FANG;SONG, MUMIN;HARWOOD, PATRICK J.;GRIFFEN, CHRISTOPHER THOMAS
发明人
CHEN, FANG;SONG, MUMIN;HARWOOD, PATRICK J.;GRIFFEN, CHRISTOPHER THOMAS