Abstract

<p>Safe driving or skiing in the “arctic whiteout” depends frequently upon the early detection of crevasses, fissures, ditches, or other sudden changes of elevation in the snow field. It has been believed that there might exist a certain colored glass for snow goggles which would provide a better perception of dangerous spots in snow. However, no definite answer was available as to what color the lenses ought to be.</p><p>The purpose of this paper is to investigate this problem from the theoretical point of view. It is found that compared with an essentially neutral glass none of the colored glasses ordinarily used in snow goggles improves the ability of the eye to detect sudden changes of elevation in a snow field. Even red glasses of extreme purity—which according to the present theory would be expected to give a maximum of improvement, are not significantly more effective than neutral glasses.</p>

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References

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  1. D. Farnsworth, Color Vision Report No. 17 (Medical Research Laboratory, U. S. Naval Submarine Base, New London, 1948).
  2. D. Farnsworth, Sight-Saving Rev. 20, 81 (1950).
  3. F. Moss, Memorandum Report No. WCRDF-690-1H (Wright-Patterson Air Force Base, Dayton, 1951).
  4. A. H. Taylor and G. P. Kerr, J. Opt. Soc. Am. 31, 3 (1941).
  5. E. L. Krinov, "Spectral reflectance properties of natural formations." Izdaltel'stvo Akad. Nauk. U.S.S.R. (1947). Available in English as NRC-Technical Translation TT-439, Ottawa, 1953.
  6. Z. Yamauti, J. Opt. Soc. Am. 13, 561 (1926).
  7. H. Buckley, Comm. Int. l'Éclairage Proc., 888 (1928).
  8. P. Moon, J. Opt. Soc. Am. 31, 223 (1941).
  9. P. Moon, J. Opt. Soc. Am. 31, 301 (1941).
  10. H. R. Blackwell, J. Opt. Soc. Am. 36, 624 (1946).
  11. W. E. K. Middleton, Vision through the Atmosphere (The University of Toronto Press, Toronto, 1952), p. 90, Fig. 5.4.
  12. P. Moon and D. E. Spencer, Illum. Eng. 37, 707 (1942); see also reference 11, pp. 105–107.

Blackwell, H. R.

H. R. Blackwell, J. Opt. Soc. Am. 36, 624 (1946).

Buckley, H.

H. Buckley, Comm. Int. l'Éclairage Proc., 888 (1928).

Farnsworth, D.

D. Farnsworth, Color Vision Report No. 17 (Medical Research Laboratory, U. S. Naval Submarine Base, New London, 1948).

D. Farnsworth, Sight-Saving Rev. 20, 81 (1950).

Kerr, G. P.

A. H. Taylor and G. P. Kerr, J. Opt. Soc. Am. 31, 3 (1941).

Krinov, E. L.

E. L. Krinov, "Spectral reflectance properties of natural formations." Izdaltel'stvo Akad. Nauk. U.S.S.R. (1947). Available in English as NRC-Technical Translation TT-439, Ottawa, 1953.

Middleton, W. E. K.

W. E. K. Middleton, Vision through the Atmosphere (The University of Toronto Press, Toronto, 1952), p. 90, Fig. 5.4.

Moon, P.

P. Moon and D. E. Spencer, Illum. Eng. 37, 707 (1942); see also reference 11, pp. 105–107.

P. Moon, J. Opt. Soc. Am. 31, 223 (1941).

P. Moon, J. Opt. Soc. Am. 31, 301 (1941).

Moss, F.

F. Moss, Memorandum Report No. WCRDF-690-1H (Wright-Patterson Air Force Base, Dayton, 1951).

Spencer, D. E.

P. Moon and D. E. Spencer, Illum. Eng. 37, 707 (1942); see also reference 11, pp. 105–107.

Taylor, A. H.

A. H. Taylor and G. P. Kerr, J. Opt. Soc. Am. 31, 3 (1941).

Yamauti, Z.

Z. Yamauti, J. Opt. Soc. Am. 13, 561 (1926).

Other

D. Farnsworth, Color Vision Report No. 17 (Medical Research Laboratory, U. S. Naval Submarine Base, New London, 1948).

D. Farnsworth, Sight-Saving Rev. 20, 81 (1950).

F. Moss, Memorandum Report No. WCRDF-690-1H (Wright-Patterson Air Force Base, Dayton, 1951).

A. H. Taylor and G. P. Kerr, J. Opt. Soc. Am. 31, 3 (1941).

E. L. Krinov, "Spectral reflectance properties of natural formations." Izdaltel'stvo Akad. Nauk. U.S.S.R. (1947). Available in English as NRC-Technical Translation TT-439, Ottawa, 1953.

Z. Yamauti, J. Opt. Soc. Am. 13, 561 (1926).

H. Buckley, Comm. Int. l'Éclairage Proc., 888 (1928).

P. Moon, J. Opt. Soc. Am. 31, 223 (1941).

P. Moon, J. Opt. Soc. Am. 31, 301 (1941).

H. R. Blackwell, J. Opt. Soc. Am. 36, 624 (1946).

W. E. K. Middleton, Vision through the Atmosphere (The University of Toronto Press, Toronto, 1952), p. 90, Fig. 5.4.

P. Moon and D. E. Spencer, Illum. Eng. 37, 707 (1942); see also reference 11, pp. 105–107.

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