Abstract

The 380-cm Kitt Peak telescope will have an f/2.8 hyperbolic primary. Three tentative field correctors for prime focus use are described; they each have one or more aspheric surfaces.

© 1966 Optical Society of America

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References

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  1. F. E. Ross, Astrophys. J. 81, 156 (1935).
    [CrossRef]
  2. D. L. Crawford, Sky and Telescope 29 (5), 268 (1965).
  3. C. G. Wynne, Appl. Opt. 4, 1185 (1965).
    [CrossRef]
  4. I. S. Bowen, Publ. Astron. Soc. Pacific 73, 114 (1961).
    [CrossRef]
  5. D. H. Schulte, Appl. Opt. 2, 141 (1963).
    [CrossRef]
  6. D. H. Schulte, in preparation for Appl. Opt.
  7. H. Köhler, Reports to the European Southern Observatory Committee, (1964 and 1965), unpublished.
  8. A. Baranne, Reports to the European Southern Observatory Committee, (1964 and 1965), unpublished.
  9. C. A. Lehmann, “LASL Lens Design Program for the IBM 7090”, Los Alamos Scientific Lab. Rept. (1963).
  10. B. Brixner, “Lens Designing Technique with the 1962 LASL Code for the IBM 7090”, Los Alamos Scientific Lab. Rept. (1963).
  11. R. E. Hopkins, G. H. Spencer, J. Opt. Soc. Am. 52, 172 (1962).
    [CrossRef]
  12. A. B. Meinel, in preparation.
  13. S. Rosin, J. Opt. Soc. Am. 51, 331 (1961).
    [CrossRef]
  14. K. Strand, Sky and Telescope 27, 204 (1964).
  15. C. G. Wynne, Proc. Phys. Soc. (London) B62, 772 (1949).
  16. A. B. Meinel, Astrophys. J. 118, 335 (1953).
    [CrossRef]
  17. S. C. B. Gascoigne, The Observatory 85, 79 (1965).

1965 (3)

D. L. Crawford, Sky and Telescope 29 (5), 268 (1965).

C. G. Wynne, Appl. Opt. 4, 1185 (1965).
[CrossRef]

S. C. B. Gascoigne, The Observatory 85, 79 (1965).

1964 (1)

K. Strand, Sky and Telescope 27, 204 (1964).

1963 (1)

1962 (1)

1961 (2)

S. Rosin, J. Opt. Soc. Am. 51, 331 (1961).
[CrossRef]

I. S. Bowen, Publ. Astron. Soc. Pacific 73, 114 (1961).
[CrossRef]

1953 (1)

A. B. Meinel, Astrophys. J. 118, 335 (1953).
[CrossRef]

1949 (1)

C. G. Wynne, Proc. Phys. Soc. (London) B62, 772 (1949).

1935 (1)

F. E. Ross, Astrophys. J. 81, 156 (1935).
[CrossRef]

Baranne, A.

A. Baranne, Reports to the European Southern Observatory Committee, (1964 and 1965), unpublished.

Bowen, I. S.

I. S. Bowen, Publ. Astron. Soc. Pacific 73, 114 (1961).
[CrossRef]

Brixner, B.

B. Brixner, “Lens Designing Technique with the 1962 LASL Code for the IBM 7090”, Los Alamos Scientific Lab. Rept. (1963).

Crawford, D. L.

D. L. Crawford, Sky and Telescope 29 (5), 268 (1965).

Gascoigne, S. C. B.

S. C. B. Gascoigne, The Observatory 85, 79 (1965).

Hopkins, R. E.

Köhler, H.

H. Köhler, Reports to the European Southern Observatory Committee, (1964 and 1965), unpublished.

Lehmann, C. A.

C. A. Lehmann, “LASL Lens Design Program for the IBM 7090”, Los Alamos Scientific Lab. Rept. (1963).

Meinel, A. B.

A. B. Meinel, Astrophys. J. 118, 335 (1953).
[CrossRef]

A. B. Meinel, in preparation.

Rosin, S.

Ross, F. E.

F. E. Ross, Astrophys. J. 81, 156 (1935).
[CrossRef]

Schulte, D. H.

D. H. Schulte, Appl. Opt. 2, 141 (1963).
[CrossRef]

D. H. Schulte, in preparation for Appl. Opt.

Spencer, G. H.

Strand, K.

K. Strand, Sky and Telescope 27, 204 (1964).

Wynne, C. G.

C. G. Wynne, Appl. Opt. 4, 1185 (1965).
[CrossRef]

C. G. Wynne, Proc. Phys. Soc. (London) B62, 772 (1949).

Appl. Opt. (2)

Astrophys. J. (2)

F. E. Ross, Astrophys. J. 81, 156 (1935).
[CrossRef]

A. B. Meinel, Astrophys. J. 118, 335 (1953).
[CrossRef]

J. Opt. Soc. Am. (2)

Proc. Phys. Soc. (London) (1)

C. G. Wynne, Proc. Phys. Soc. (London) B62, 772 (1949).

Publ. Astron. Soc. Pacific (1)

I. S. Bowen, Publ. Astron. Soc. Pacific 73, 114 (1961).
[CrossRef]

Sky and Telescope (2)

D. L. Crawford, Sky and Telescope 29 (5), 268 (1965).

K. Strand, Sky and Telescope 27, 204 (1964).

The Observatory (1)

S. C. B. Gascoigne, The Observatory 85, 79 (1965).

Other (6)

A. B. Meinel, in preparation.

D. H. Schulte, in preparation for Appl. Opt.

H. Köhler, Reports to the European Southern Observatory Committee, (1964 and 1965), unpublished.

A. Baranne, Reports to the European Southern Observatory Committee, (1964 and 1965), unpublished.

C. A. Lehmann, “LASL Lens Design Program for the IBM 7090”, Los Alamos Scientific Lab. Rept. (1963).

B. Brixner, “Lens Designing Technique with the 1962 LASL Code for the IBM 7090”, Los Alamos Scientific Lab. Rept. (1963).

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Figures (6)

Fig. 1
Fig. 1

Spot diagrams for the U. S. Naval Observatory (Flagstaff) f/10 parabola with a standard Ross doublet field corrector (Table II), showing the intrinsic under-corrected spherical aberration of such a simple system. Vertical coordinate represents shift of focus from optimum (center image); on this and following the angular scale is shown by the circle drawn at left center; it is 1 sec in diameter. To its right is a schematic drawing showing the amount of coma at the indicated field angle (15 min in this case) for a parabola with such an aperture ratio.

Fig. 2
Fig. 2

Spot diagrams of the Rosin system (Table III), which uses a positive-power Ross-type doublet to increase the speed from f/2.8 to f/2.5. The primary departs from a parabola by a rather large amount compared to a Ritchey-Chrétien primary; the reason is to present the Ross doublet with the proper amount of over-corrected spherical aberration, without contributing to the off-axis aberrations.

Fig. 3
Fig. 3

A Wynne corrector (Table IV) that uses an aspheric plate to aid in the spherical aberration correction.

Fig. 4
Fig. 4

Spot diagrams for the Wynne system (Ritchey-Chrétien primary). f/2.8–f/2.5, doublet plus medium-diameter aspheric.

Fig. 5
Fig. 5

A Meinel three-aspheric corrector (Table V).

Fig. 6
Fig. 6

Spot diagrams for the Meinel system. f/2.8, three small-diameter spaced aspherics.

Tables (5)

Tables Icon

Table I Ritchey-Chrétien Configuration (f/2.8–f/9.0) for 380-cm Kitt Peak Telescope

Tables Icon

Table II 152-cm f/10 Parabola with Standard Ross Doublet Only (U.S. Naval Observatory, Flagstaff)

Tables Icon

Table III 380-cm Rosin System; Ross Doublet with Strongly Hyperbolic Primary

Tables Icon

Table IV 380-cm Wynne System; Ross Doublet with Aspheric Corrector Plate (Ritchey-Chrétien Primary)

Tables Icon

Table V 380-cm Meinel System; Three Aspheric Plates

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