Aplanatic cemented doublets achromatized with normal glasses in the visible spectrum

Martha Rosete-Aguilar; Juan L. Rayces

doi:10.1117/12.360025

27 August 1999 Aplanatic cemented doublets achromatized with normal glasses in the visible spectrum

Martha Rosete-Aguilar, Juan L. Rayces

Proceedings Volume 3737, Design and Engineering of Optical Systems II; (1999) https://doi.org/10.1117/12.360025
Event: Optical Systems Design and Production, 1999, Berlin, Germany

Abstract

This paper presents a systematic study of aplanatic cemented doublets acromatized with normal glasses in the visible spectrum in order to answer some questions concerned with residual aberrations such as zonal spherical aberration, oblique spherical aberration, spherochromatism and secondary spectrum. Two of the questions concerned with these residual aberrations are: (1) is it possible to reduce even by a small amount any of these aberrations by selecting an appropriate pair of glasses, and (2) is there any advantage in having the crown in front of the flint when designing a doublet. To answer these questions a study is being carried out for a doublet with an aperture of 2.0 inches and a semi- field of view of 1 degrees. The doublets are designed for six f-numbers: f/5.6, f/4.0, f/2.8, f/2.6, f/1.8 and f/1.6 when the crown is in front of the flint. All solutions have the same thickness on axis for the flint and the same thickness on the edge for the crown. This analysis is also performed for a double having the flint in front of the crown. The results are presented and discussed.

Citation Download Citation

Martha Rosete-Aguilar and Juan L. Rayces "Aplanatic cemented doublets achromatized with normal glasses in the visible spectrum", Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); https://doi.org/10.1117/12.360025

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KEYWORDS

Refractive index

Monochromatic aberrations

Lens design

Glasses

Silicon

Visible radiation

Fluctuations and noise

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