Abstract

Two new computer programs are described. The first, zest, predicts the sensitivity of lens performance to perturbations of the constructional parameters of the lens. The second, zealot, predicts the statistical distribution of the performance expected from a sample of actual manufactured lenses. Both programs are based on the wave front and the modulation transfer function and permit a more general approach to lens specification, tolerancing, and testing.

© 1980 Optical Society of America

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References

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  1. H. H. Hopkins, H. J. Tiziani, Br. J. Appl. Phys. 17, 33 (1966).
    [CrossRef]
  2. E. W. Marchand, R. Phillips, Appl. Opt. 2, 359 (1963).
    [CrossRef]
  3. E. M. Granger, in Proceedings, SPIE Image Assessment and Specification Seminar (Rochester, New York, 1974), Vol. 46, pp. 86–92.
    [CrossRef]

1966 (1)

H. H. Hopkins, H. J. Tiziani, Br. J. Appl. Phys. 17, 33 (1966).
[CrossRef]

1963 (1)

Granger, E. M.

E. M. Granger, in Proceedings, SPIE Image Assessment and Specification Seminar (Rochester, New York, 1974), Vol. 46, pp. 86–92.
[CrossRef]

Hopkins, H. H.

H. H. Hopkins, H. J. Tiziani, Br. J. Appl. Phys. 17, 33 (1966).
[CrossRef]

Marchand, E. W.

Phillips, R.

Tiziani, H. J.

H. H. Hopkins, H. J. Tiziani, Br. J. Appl. Phys. 17, 33 (1966).
[CrossRef]

Appl. Opt. (1)

Br. J. Appl. Phys. (1)

H. H. Hopkins, H. J. Tiziani, Br. J. Appl. Phys. 17, 33 (1966).
[CrossRef]

Other (1)

E. M. Granger, in Proceedings, SPIE Image Assessment and Specification Seminar (Rochester, New York, 1974), Vol. 46, pp. 86–92.
[CrossRef]

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Figures (1)

Fig. 1
Fig. 1

Block diagram of the zest/zealot tolerancing approach.

Tables (6)

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Table I Truncated Zernike Circle Polynomials Used in zest/zealot to Represent the Wave Front a

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Table II Perturbations Used in zest and zealot

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Table III Five Lenses Used to Test zest

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Table IV Least Squares Linearity Results for the Five-Lens Test for SQF vs Mid-SQF-Band MTF a

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Table V Wave-Front Synthesis Results of the Five-Lens Test a

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Table VI Comparison of Calculated MTFs from zealot and Exact Method for Two Perturbed Samples of an f/1.9 Camera Lens a

Equations (1)

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Z i P = Z i N + j = 1 N e e j , t j l = 1 N j C t j , s l , i ( θ j ) f j , s l ,

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