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References

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  1. L. Epstein, Sky and Telescope 33, April (1967).
  2. K. Henize, “The Role of Surveys in Space Astronomy,” in Optical Telescope Technology, NASA-SP-233 (U.S. Government Printing Office, Washington D.C., 1970).

1967 (1)

L. Epstein, Sky and Telescope 33, April (1967).

Epstein, L.

L. Epstein, Sky and Telescope 33, April (1967).

Henize, K.

K. Henize, “The Role of Surveys in Space Astronomy,” in Optical Telescope Technology, NASA-SP-233 (U.S. Government Printing Office, Washington D.C., 1970).

Sky and Telescope (1)

L. Epstein, Sky and Telescope 33, April (1967).

Other (1)

K. Henize, “The Role of Surveys in Space Astronomy,” in Optical Telescope Technology, NASA-SP-233 (U.S. Government Printing Office, Washington D.C., 1970).

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Figures (1)

Fig. 1
Fig. 1

(1) Schmidt correcting plate mirror, (2) optical axis, (3) circular spherical mirror used in prototype, (4) proposed semicircular spherical mirror, (5) semicircular film format at focal surface, (6) prototypes field of view using circular spherical mirror, (7) field of view when semicircular mirror is used, (8) shaft of light from star, (9) area on spherical mirror illuminated by shaft of star light, note vignetting, (10) image of star on focal surface. The focal ratio was deliberately made very small (approximately f/1.1) to exaggerate angles and vignetting for the sake of illustration.

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