公开(公告)号：US20120320377A1

公开(公告)日：2012-12-20

申请号：US13164130

申请日：2011-06-20

Applicant: Johannes D. de Veer ,  Leonid Poslavsky ,  G. Vera Zhuang ,  Shankar Krishnan

Inventor： Johannes D. de Veer ,  Leonid Poslavsky ,  G. Vera Zhuang ,  Shankar Krishnan

IPC: G01J4/00

CPC classification number: G01N21/21 ,  G01J3/504 ,  G01N21/274

Abstract: A method to calibrate a polarizer in polarized optical system at any angle of incidence, by decoupling the calibration from a polarization effect of the system, by providing a calibration apparatus that includes a substrate having a polarizer disposed on a surface thereof, with an indicator on the substrate for indicating a polarization orientation of the polarizer, loading the calibration apparatus in the polarized optical system with the indicator in a desired position, determining an initial angle between the polarization orientation and a reference of the polarized optical system, acquiring spectra using the polarized optical system at a plurality of known angles between the polarization orientation and the reference of the polarized optical system, using the spectra to plot a curve indicating an angle of the polarizer in the polarized optical system, and when the angle of the polarizer is outside of a desired range, adjusting the angle of the polarizer, and repeating the steps of acquiring the spectra, and plotting a curve indicating the angle of the polarizer.

Abstract translation: 一种通过提供校准装置来校准偏振光学系统中任何入射角的偏振器的方法，通过提供校准装置，该校准装置包括具有设置在其表面上的偏振器的衬底， 用于指示偏振器的偏振取向的衬底，将校准装置装载在具有指示器的期望位置的偏振光学系统中，确定极化取向和偏振光学系统的基准之间的初始角度，使用偏振光 光学系统以偏振方向和偏振光学系统的基准之间的多个已知角度，使用光谱绘制指示偏振器在偏振光学系统中的角度的曲线，以及当偏振器的角度在 期望的范围，调节偏振器的角度，并重复以下步骤 获取光谱，并绘制一个指示偏振片角度的曲线。