公开(公告)号：US08517535B2

公开(公告)日：2013-08-27

申请号：US13299466

申请日：2011-11-18

申请人： Thomas D Raymond ,  Paul Pulaski ,  Stephen W Farrer ,  Daniel R Neal ,  Alan H Greenaway ,  David M Faichnie ,  Heather I Campbell Dalgarno ,  Graham N Craik

发明人： Thomas D Raymond ,  Paul Pulaski ,  Stephen W Farrer ,  Daniel R Neal ,  Alan H Greenaway ,  David M Faichnie ,  Heather I Campbell Dalgarno ,  Graham N Craik

IPC分类号： A61B3/10 ,  A61B3/00 ,  G02B5/18

CPC分类号： G01M11/0292 ,  A61B3/1015 ,  G01J9/00

摘要： A phase diversity wavefront sensor includes an optical system including at least one optical element for receiving a light beam; a diffractive optical element having a diffractive pattern defining a filter function, the diffractive optical element being arranged to produce, in conjunction with the optical system, images from the light beam associated with at least two diffraction orders; and a detector for detecting the images and outputting image data corresponding to the detected images. In one embodiment, the optical system, diffractive optical element, and detector are arranged to provide telecentric, pupil plane images of the light beam. A processor receives the image data from the detector, and executes a Gerchberg-Saxton phase retrieval algorithm to measure the wavefront of the light beam.

摘要翻译： 相位分集波前传感器包括光学系统，该光学系统包括用于接收光束的至少一个光学元件; 具有限定滤光器功能的衍射图案的衍射光学元件，所述衍射光学元件布置成与所述光学系统结合产生与至少两个衍射级相关联的光束的图像; 以及用于检测图像并输出与检测到的图像相对应的图像数据的检测器。 在一个实施例中，光学系统，衍射光学元件和检测器被布置成提供光束的远心光瞳平面图像。 处理器从检测器接收图像数据，并且执行Gerchberg-Saxton相位检索算法来测量光束的波前。