Letter | Published:

Absolute Scotopic Sensitivity of the Eye in the Ultra-violet and in the Visible Spectrum

Nature volume 155, pages 2021 (06 January 1945) | Download Citation

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Abstract

IN a paper published in 19411 measurements were given of scotopic and photopic sensitivity, for which nine observers were used. These measurements were made in the range between the mercury lines 709 and 302 mμ. In the paper by Goodeve, Lythgoe and Schneider published in 19422 measurements were given of scotopic sensitivity, for which six observers were used, including one with an aphakic eye. Their measurements were made at the mercury lines at 365 and 546 mμ. It is of interest to compare the results obtained after dark adaptation of one hour, with the results of Goodeve et al., obtained after dark adaptation for 10 minutes.

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Author information

Affiliations

  1. State Optical Institute, U.S.S.R.

    • N. I. PINEGIN

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DOI

https://doi.org/10.1038/155020c0

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