Abstract

This study investigates the role of gradient-index materials in the design of Cooke triplets for use as 35-mm format photographic objectives. Cooke triplet designs are presented with different types of gradient-index profiles. Both linear axial and shallow radial gradients are shown to provide effective control of spherical aberration and astigmatism. In particular, a Cooke triplet with a combination of both linear axial and radial gradients attains performance comparable to a six-element double Gauss lens. In virtually all cases, the use of gradient-index components improves the Cooke triplets’ performance significantly.

© 1990 Optical Society of America

Radial gradient-index eyepiece design

John P. Bowen, J. Brian Caldwell, Leo R. Gardner, Niels Haun, Michael T. Houk, Douglas S. Kindred, Duncan T. Moore, Masataka Shiba, and David Y. H. Wang
Appl. Opt. 27(15) 3170-3176 (1988)

Axial and radial gradient-index titania flint glasses

Douglas S. Kindred, Julie Bentley, and Duncan T. Moore
Appl. Opt. 29(28) 4036-4041 (1990)

Third-order aberration theory for weak gradient-index lenses

David Y. H. Wang and Duncan T. Moore
Appl. Opt. 29(28) 4016-4025 (1990)

Design of a cemented, radial gradient-index triplet

Grigoriy I. Greisukh and Sergei A. Stepanov
Appl. Opt. 37(13) 2687-2690 (1998)

Design and tolerancing of aspherical and gradient-index germanium singlets of equal performance

Nathalie M. Renaud and Duncan T. Moore
Appl. Opt. 29(28) 4030-4035 (1990)