Abstract

A spectrograph has been designed and constructed by the author which has the following characteristics: (1) It can be used to solve nearly every problem which requires the use of a glass prism spectrograph and a number of problems for which a 21-foot grating is usually required. (2) In the violet it is equivalent to a 21-foot 15,000 lines to the inch grating in the second order with respect to resolving power and dispersion, and is free from ghosts. (3) The mounting is arranged in such a manner that more than 20 combinations are available by rather simple adjustments, giving a wide range of photographic speeds and dispersion. (Table I shows dispersion obtainable with different combinations of prisms and lenses.) (4) The spectrograph was constructed in our shop at a cost for optics and materials no greater than the cost of a small ready made single prism spectrograph.

© 1933 Optical Society of America

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References

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  1. J. S. Foster, J. Opt. Soc. Am. 8, 373 (1924).
    [Crossref]
  2. P. Weiss and R. Fortrat-Archives des Sciences 35, 5–27 (1913).
  3. Urey, Brickwedde, and Murphy, Phys. Rev. 40, 1 (1932).
    [Crossref]
  4. Rank, Phys. Rev. 42, 446 (1932).
    [Crossref]

1932 (2)

Urey, Brickwedde, and Murphy, Phys. Rev. 40, 1 (1932).
[Crossref]

Rank, Phys. Rev. 42, 446 (1932).
[Crossref]

1924 (1)

1913 (1)

P. Weiss and R. Fortrat-Archives des Sciences 35, 5–27 (1913).

Brickwedde,

Urey, Brickwedde, and Murphy, Phys. Rev. 40, 1 (1932).
[Crossref]

Fortrat, R.

P. Weiss and R. Fortrat-Archives des Sciences 35, 5–27 (1913).

Foster, J. S.

Murphy,

Urey, Brickwedde, and Murphy, Phys. Rev. 40, 1 (1932).
[Crossref]

Rank,

Rank, Phys. Rev. 42, 446 (1932).
[Crossref]

Urey,

Urey, Brickwedde, and Murphy, Phys. Rev. 40, 1 (1932).
[Crossref]

Weiss, P.

P. Weiss and R. Fortrat-Archives des Sciences 35, 5–27 (1913).

Archives des Sciences (1)

P. Weiss and R. Fortrat-Archives des Sciences 35, 5–27 (1913).

J. Opt. Soc. Am. (1)

Phys. Rev. (2)

Urey, Brickwedde, and Murphy, Phys. Rev. 40, 1 (1932).
[Crossref]

Rank, Phys. Rev. 42, 446 (1932).
[Crossref]

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Figures (3)

Fig. 1
Fig. 1

Horizontal section of the Littrow mount.

Fig. 2
Fig. 2

Photograph of six prism instrument in conventional mount.

Fig. 3
Fig. 3

Samples of work done to date with the multiple prism spectrograph with both conventional and Littrow mounts.