Design of a Three-Element Apochromatic Lens to Correct Axial Chromatic Aberration at UVA Wavelength Band
عنوان مقاله: Design of a Three-Element Apochromatic Lens to Correct Axial Chromatic Aberration at UVA Wavelength Band
شناسه ملی مقاله: JR_JOPN-8-4_004
منتشر شده در در سال 1402
شناسه ملی مقاله: JR_JOPN-8-4_004
منتشر شده در در سال 1402
مشخصات نویسندگان مقاله:
Ali Rezaei- Latifi - Physics Department, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
خلاصه مقاله:
Ali Rezaei- Latifi - Physics Department, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
Abstract: Apochromat is usually designed for color correction in the range of the visible spectrum. But to correct the chromatic aberration of optical systems outside the visible spectrum, apochromatic lens in the same spectral band should be used. In this work, firstly, a three-element apochromatic lens in the UVA spectral region is pre-designed and optimized by spherical lenses with suitable glasses. The primary spherical aberration of this apochromat is almost zero and its tertiary spectrum has a small value of ۲.۵۵۸ microns. Nevertheless, the spherical aberration of higher orders causes the RMS radius in the spot diagram to be several times larger than the Airy radius. Then, by selecting aspheric surfaces and re-optimizing the system, a spherical aberration-free apochromatic with a small tertiary spectrum is designed. In this last design, the RMS radius is smaller than the Airy radius, so almost all points are located inside the Airy disk. This lens can be used to correct chromatic aberration in UVA imaging spectrometers and cameras.
کلمات کلیدی: Airy Radias, Apochromat, secondary spectrum, Spot diagram
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1923721/