Abstract

There are numerous reflecting optical system designs that call for oblate spheroidal surfaces. Yet there is reluctance to build such systems out of concern over the means of testing such surfaces. This short paper outlines several simple null tests for aspheric surfaces that lack conjugate foci.

© 1984 Optical Society of America

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References

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  1. J. D. Lytle, Appl. Opt. 9, 2497 (1970).
    [CrossRef] [PubMed]
  2. A. B. Meinel, M. P. Meinel, Appl. Opt. 22, 520 (1983).
    [CrossRef] [PubMed]
  3. J. T. McGraw et al., Proc. Soc. Photo-Opt. Instrum. Eng. 331, 137 (1982).

1983 (1)

1982 (1)

J. T. McGraw et al., Proc. Soc. Photo-Opt. Instrum. Eng. 331, 137 (1982).

1970 (1)

Appl. Opt. (2)

Proc. Soc. Photo-Opt. Instrum. Eng. (1)

J. T. McGraw et al., Proc. Soc. Photo-Opt. Instrum. Eng. 331, 137 (1982).

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Figures (4)

Fig. 1
Fig. 1

Null test for a concave oblate spheroid.

Fig. 2
Fig. 2

Null test for a convex oblate spheroid.

Fig. 3
Fig. 3

Null test for a convex Paul-Baker secondary.

Fig. 4
Fig. 4

Transmission null test for null optic.

Tables (4)

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Table I Parameters for Null Test of a Concave Oblate Spheroid

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Table II Parameters for Null Test of a Convex Oblate Spheroid

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Table III Parameters for Null Test of a Paul-Baker Secondary

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Table IV Parameters for Transmission Null Test of a Paul-Baker Null Optic

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