Abstract

In addition to being inconvenient, testing underwater lenses in their normal environment involves the difficulty of differentiating between the effects caused by the photographic system and those caused by the turbidity of the water. The principles developed and practical devices illustrated show that it is possible to apply all test methods for common photographic lenses to underwater lenses with a correctly designed concentric telescopic meniscus.

© 1970 Optical Society of America

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References

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  1. G. T. McNeil, J. Soc. Photo-Opt. Instrum. Engrs. 4, 95 (1966).
  2. M. Herzberger, in Modern Geometrical Optics, R. Courant, L. Bers, J. J. Stoker Eds. (Interscience Publishers, Inc., New York, 1958), pp. 206 ff.
  3. D. P. Feder, J. Opt. Soc. Amer. 41, 630 (1951).
    [CrossRef]

1966 (1)

G. T. McNeil, J. Soc. Photo-Opt. Instrum. Engrs. 4, 95 (1966).

1951 (1)

D. P. Feder, J. Opt. Soc. Amer. 41, 630 (1951).
[CrossRef]

Feder, D. P.

D. P. Feder, J. Opt. Soc. Amer. 41, 630 (1951).
[CrossRef]

Herzberger, M.

M. Herzberger, in Modern Geometrical Optics, R. Courant, L. Bers, J. J. Stoker Eds. (Interscience Publishers, Inc., New York, 1958), pp. 206 ff.

McNeil, G. T.

G. T. McNeil, J. Soc. Photo-Opt. Instrum. Engrs. 4, 95 (1966).

J. Opt. Soc. Amer. (1)

D. P. Feder, J. Opt. Soc. Amer. 41, 630 (1951).
[CrossRef]

J. Soc. Photo-Opt. Instrum. Engrs. (1)

G. T. McNeil, J. Soc. Photo-Opt. Instrum. Engrs. 4, 95 (1966).

Other (1)

M. Herzberger, in Modern Geometrical Optics, R. Courant, L. Bers, J. J. Stoker Eds. (Interscience Publishers, Inc., New York, 1958), pp. 206 ff.

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Figures (9)

Fig. 1
Fig. 1

Concentric telescopic meniscus, symbolic representation.

Fig. 2
Fig. 2

Concentric telescopic meniscus, parameter relationships.

Fig. 3
Fig. 3

Concentric telescopic meniscus, object positions in air and water.

Fig. 4
Fig. 4

Concentric telescopic meniscus, glass chart.

Fig. 5
Fig. 5

Concentric telescopic meniscus, spherical aberration.

Fig. 6
Fig. 6

Concentric telescopic meniscus, entrance pupil radius.

Fig. 7
Fig. 7

Concentric telescopic meniscus for wide angle photographic testing.

Fig. 8
Fig. 8

Concentric telescopic meniscus, Eros IV test configuration.

Fig. 9
Fig. 9

Concentric telescopic meniscus for testing a lens with an external entrance pupil.

Equations (2)

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V 1 = ( V 2 N 2 / N 1 ) [ 1 + ( r 2 / S 3 ) ] 1 .
r 1 = 301.44 mm , t 1 = 205.74 mm , n 1 = 1.59168 , V 1 = 53.01 , r 2 = 95.7 mm .

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