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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 36, Iss. 11 — Nov. 1, 1946
  • pp: 624–632

Contrast Thresholds of the Human Eye

H. RICHARD BLACKWELL  »View Author Affiliations


JOSA, Vol. 36, Issue 11, pp. 624-632 (1946)
http://dx.doi.org/10.1364/JOSA.36.000624


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Citation
H. RICHARD BLACKWELL, "Contrast Thresholds of the Human Eye," J. Opt. Soc. Am. 36, 624-632 (1946)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-36-11-624


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References

  1. J. P. Guilford, Psychometric Methods (McGraw-Hill Book Company, Inc., New York, 1935), p. 170ff.
  2. Although only random differences are present in Fig. 5, the data of Fig. 6 exhibit a consistent trend of smaller h for larger stimuli. The differences in h between the largest stimulus and each of the other stimuli were tested for significance. Value of CRδ and of P (probability of a difference existing in the direction obtained) are presented:
  3. L. A. Jones, "Summary of American opinion, BS/ARP 18, British standard specification for fluorescent and phosphorescent paint," Great Britain Ministry of Home Security. RC(C) 85 (July, 1942).

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