公开(公告)号：EP2487522B1

公开(公告)日：2020-09-30

申请号：EP12154760.8

申请日：2012-02-09

申请人： OmniVision Technologies, Inc.

发明人： Silveira, Paulo, E.X. ,  Gallagher, Dennis J. ,  Gao, Lu

IPC分类号： G02B5/32 ,  G03B15/02 ,  G02B27/00 ,  H04N13/254

公开(公告)号：EP2487522A1

公开(公告)日：2012-08-15

申请号：EP12154760.8

申请日：2012-02-09

申请人： OmniVision Technologies, Inc.

发明人： Silveira, Paulo, E.X. ,  Gallagher, Dennis J. ,  Gao, Lu

IPC分类号： G02B27/00

摘要： An optical system for capturing three-dimensional images of a three-dimensional object is provided. The optical system includes a projector for structured illumination of the object. The projector includes a light source, a grid mask positioned between the light source and the object for structured illumination of the object, and a first Wavefront Coding (WFC) element having a phase modulating mask positioned between the grid mask and the object to receive patterned light from the light source through the grid mask. The first WFC element is constructed and arranged such that a point spread function of the projector is substantially invariant over a wider range of depth of field of the grid mask than a point spread function of the projector without the first WFC element.

摘要翻译： 提供了一种用于捕获三维物体的三维图像的光学系统。 该光学系统包括用于在对象的结构化照明的投影仪。 该投影仪包括光源，所述光源和用于该对象的结构化照明的物体之间定位在栅格屏蔽，以及第一波前编码（WFC）具有相位调制掩模栅格掩模与所述物体之间定位成接收图案化的元件 从通过栅格掩模光源的光，所述第一WFC元件被构造和布置搜索做了投影仪的点扩散函数是在网格上掩模比投影的点扩散函数的景深的抗蚀剂范围内基本上不变 没有第一WFC元件。