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Universal optical wave plate detector with high reproducibility

A general-purpose optical and reproducible technology, applied in the field of optical measurement, can solve problems such as low measurement efficiency and complex instruments, and achieve the effects of strong versatility, high measurement accuracy and good repeatability

Inactive Publication Date: 2005-06-29
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

Currently widely used measurement technology (see prior art [1] "Development of 1.06μm quarter-wave plate with He-Ne laser" Jiang Bingzhi et al., "Laser Journal", Vol.7 No.1 1986.P.24) Usually only one type of wave plate (1 / 4, 1 / 2, etc.) or a single wavelength can be measured, and the instrument is complex and the measurement efficiency is low

Method used

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  • Universal optical wave plate detector with high reproducibility
  • Universal optical wave plate detector with high reproducibility
  • Universal optical wave plate detector with high reproducibility

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Embodiment Construction

[0021] A specific embodiment of the high-reproducibility universal optical wave plate detector of the present invention is as figure 1 As shown, it includes a white light source 1 , a beam splitter 2 , an embedded measurement table 3 and a photodetector 4 . The system also includes an analog-to-digital converter 5 , a computer 6 and a controller 7 . The outgoing light of the white light source 1 is incident on the beam splitter 2 to obtain a monochromatic beam, and then the beam is incident on the embedded measurement table 3, and the embedded sample table 3 is used to polarize the monochromatic incident light after passing through the beam splitter 2, and placed to be Measure the sample, and the effect on the polarization analysis of the outgoing light. A polarizer 301 , a wave plate to be measured 303 and a polarizer 304 are fixed on the embedded measurement frame 302 . The polarizer 303 and the analyzer 304 can be various polarizing prisms or other high-performance polari...

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Abstract

It is a high reproducibility general optics wave plate detector, which is characterized by comprising the white light source, light splitter, imbed test bench and photoelectricity detector along the moving direction of the light beam. The system also comprises A / D converter, computer and controller. The emergent light of the white light source comes to the splitter to get monochromatic beam and then the beam comes to the imbedded test bench and finally is received by the photoelectricity detector and input to computer through A / D converter. And it gets the wave plate parameters through computer process. The imbedded sample is used to polarize the monochromatic light.

Description

technical field [0001] The invention relates to optical measurement, in particular to a high-reproducibility universal optical wave plate detector. It is mainly used to measure the retardation angle and thickness of optical waveplates. technical background [0002] Waveplates are widely used in photoelasticity, optical measurement, materials science, biology, physics and other fields. In these applications, there are usually strict requirements on the quality of the wave plate, and the performance of the wave plate needs to be accurately measured after processing to ensure that its accurate parameters are known during use. Currently widely used measurement technology (see prior art [1] "Development of 1.06μm quarter-wave plate with He-Ne laser" Jiang Bingzhi et al., "Laser Journal", Vol.7 No.1 1986.P.24) Generally, only one wave plate (1 / 4, 1 / 2, etc.) or a single wavelength can be measured, and the instrument is complex and the measurement efficiency is low. Contents of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01M11/02
Inventor 周飞徐文东干福熹
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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