• Title/Summary/Keyword: Apochromatic lens

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Selection of Optical Glasses Using a Chromatic-Aberration Correction Method for the Whole Visible Range Plus a Telecentric Lens Design Applying the Method (가시광선 전대역의 색수차보정을 위한 광학유리의 선정과 이를 적용한 텔레센트릭 렌즈의 설계)

  • Yu, Seung Moon;Jung, Mee Suk
    • Korean Journal of Optics and Photonics
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    • v.26 no.4
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    • pp.217-225
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    • 2015
  • This paper shows the best selection and combination of glass in lens design, to correct a chromatic aberration using achromatic and apochromatic conditions. Using this research result, we have designed a telecentric lens for machine vision in the full range of visible light. We obtain good optical quality in the form of a quite small RMS wavefront error of $0.057{\lambda}$ in the super-broadband wavelength range 380 nm -780 nm. This result is better than that for a common telecentric lens in the visible wavelength range 486.1-656.2 nm.