发明名称 |
SEQUENTIAL WAVEFRONT SENSOR |
摘要 |
<p>A sequential wavefront sensor comprises a light beam scanning module (212), a sub-wavef ront focusing lens (220), a detector (222) with more than one photosensitive area and a processor for calculating the sequentially obtained centroids of a number focused light spots from the sub-wavefront s to determine the aberration of the input wavefront. A sequential wavefront sensing method comprises the steps of; sequentially projecting a number of sub-wavefronts onto a sub-wavefront focusing lens and a detector with more than one photosensitive areas, calculating the centroid of the focused light spot from each sub-wavefront, and processing the centroid information to determine the aberration of the wavefront. In particular, a method for auto-focusing and/or auto-astigmatism-correction comprises the steps of sequentially projecting a number of sub-wavef ronts around an annular ring of a wavefront to a sub-wavefront focusing lens and a detector, calculating the centroid of focused light spot from each sub-wavefront to figure out the centroid trace and hence the defocus and/or astigmatism, adjusting the focus and/or astigmatism of the optical imaging system before the wavefront sensor so that the measured defocus and/or astigmatism is minimized.</p> |
申请公布号 |
WO2007087058(A8) |
申请公布日期 |
2015.05.28 |
申请号 |
WO2006US49112 |
申请日期 |
2006.12.21 |
申请人 |
CLARITY MEDICAL SYSTEMS;SU, WEI |
发明人 |
SU, WEI;ZHOU, YAN;ZHAO, QING, CHUN |
分类号 |
G01J9/00;A61B3/12;G01J3/06 |
主分类号 |
G01J9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|