公开(公告)号：KR1020040059117A

公开(公告)日：2004-07-05

申请号：KR1020020085680

申请日：2002-12-28

Applicant: 김진태

Inventor： 김진태 ,  김도형

IPC: G01J4/00

CPC classification number: G01J4/02 ,  G02B5/3025 ,  G02B27/286

Abstract: PURPOSE: A method for producing a phase-shift system using a variable polarizing film is provided to freely control phase-shift by combining two polarizers and to compact the structure of a phase-shift system. CONSTITUTION: A beam of a laser(1) is irradiated to a specially produced polarizer(2). Analysis is performed by using a motor controller(3) and a computer(5). Phase-shift is realized by combining polarizers. A laser interferometer is connected to extract the phase information obtained by a camera(6) and to analyze shape information. The laser beam is phase-shifted by passing through the left-side of the first polarizer and the right-side polarizer. Through two polarizers, total phase-shift is realized.

Abstract translation: 目的：提供一种使用可变偏振膜的相移系统的制造方法，通过组合两个偏振器来自由地控制相移并且压缩相移系统的结构。 构成：将激光束（1）照射到专门生产的偏振器（2）上。 通过使用电动机控制器（3）和计算机（5）进行分析。 通过组合偏振器实现相移。 连接激光干涉仪以提取由相机（6）获得的相位信息并分析形状信息。 激光束通过第一偏振器和右侧偏振器的左侧相移。 通过两个偏振器实现全相移。