• Title/Summary/Keyword: Nontransparent window testing

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Simultaneous measurement of the parallelism and the relative surface figure of a nontransparent plate using visible light (가시광선을 이용한 불투과 평면창의 평행도 및 상대적 표면형상 동시측정)

  • 김연수;김현숙
    • Korean Journal of Optics and Photonics
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    • v.13 no.2
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    • pp.89-91
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    • 2002

  • A test method that can measure the parallelism and the surface figure of an nontransparent plate using visible light is proposed. The testing system consists of a Twyman-Green interferometer. In addition, test results for the IR filter of IR MTF measuring system are described.

  • https://doi.org/10.3807/KJOP.2002.13.2.089 인용 PDF KSCI