发明名称 |
Fourier moire wavefront sensor |
摘要 |
An apparatus and method for wavefront sensing that includes: employing two moiré gratings in an optical path; optically Fourier transforming a moiré deflectogram produced by the gratings; variably transmitting the transformed moiré deflectogram; and receiving an image of the variably transmitted and transformed moiré deflectogram. The variable transmission is best accomplished by transmission filter, a transmissive optic encoding intensity information upon the moiré deflectogram as a function of fringe angle. For example, the function can be a triangular transmission function centered on the (0,0) order spatial frequency spot and oriented at 45 degrees to the y-axis. The optical Fourier transform is accomplished by a lens and the variable transmission by an apodized slit.
|
申请公布号 |
US6717661(B1) |
申请公布日期 |
2004.04.06 |
申请号 |
US20010771303 |
申请日期 |
2001.01.26 |
申请人 |
SCIENCE & TECHNOLOGY CORPORATION @ UNIVERSITY OF NEW MEXICO |
发明人 |
BERNSTEIN AARON C.;DIELS JEAN-CLAUDE M. |
分类号 |
G01J9/02;(IPC1-7):G01J1/00 |
主分类号 |
G01J9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|