发明名称 |
Device and method for evaluating optical distortion of transparent plate body |
摘要 |
To provide estimating apparatus and method of the optical distortion of light transmitted through a transparent plate-shaped body. Upon picking-up a grid pattern via a glass plate by an image pickup device 4 , 4n±alpha CCD pixels correspond to n grids (pair of a bright portion and a dark portion), thereby generating alpha moire fringes. Sine waves with a phase A and sine waves with a phase B deviated from the phase A by 90° are generated based on gray data of the picked-up image in this state. A phase angle at each pixel on the Lissajous figure is calculated based on the sine waves with the phases A and B, and the refractive power is calculated based on a phase angular speed, serving as the difference between the phase angles of the pixels.
|
申请公布号 |
US2006098190(A1) |
申请公布日期 |
2006.05.11 |
申请号 |
US20050540785 |
申请日期 |
2005.06.27 |
申请人 |
MIYAKE ATSUSHI;YOSHIMURA YUKI;HIRAOKA KUNIHIRO |
发明人 |
MIYAKE ATSUSHI;YOSHIMURA YUKI;HIRAOKA KUNIHIRO |
分类号 |
G01B11/16;G01N21/88;G01N21/896;G01N21/958;G06T1/00 |
主分类号 |
G01B11/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|