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Correction of chromatic aberration in hybrid objectives

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In this paper two hybrid objectives of three-elements are presented. In one of the objectives one lens is made from fluorite and in the other one – from special glass. Both have corrected chromatic aberration in the wavelength range 0.435 μm < λ < 0.852 μm. For both the objectives spherochromatic aberration is calculated and maximum aperture angle is estimated. The imaging quality obtained is compared to that of typical apochromatic objectives: refractive and hybrid ones built without use of special glasses.

Keywords: Correction of aberrations; chromatic aberration; hybrid lens

Document Type: Original Article


Affiliations: Institut of Physics, Wrocław University of Technology, Wyspiańskiego 27, PL 50-370 Wrocław, Poland

Publication date: 2002-09-01

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