News | Published:

On the Sensibility of the Eve to Variations of Wave-Length in the Yellow Region of the Spectrum1

Nature volume 85, pages 421422 (26 January 1911) | Download Citation

Subjects

Abstract

DR. EDRIDGE-GREEN2 has introduced a method of classifying colour-vision by determining the number of separate parts or divisions in the spectrum within each of which the observer can perceive no colour difference. Movable screens are provided in the focal plane of the spectroscopic telescope, by which the part admitted to the eye is limited and the limits measured in terms of wavelength. Beginning at the extreme visible red, more and more of the spectrum is admitted until a change of colour (not merely of brightness) is just perceptible. This gives-the first division. The second division starts from the place just determined, and is limited in the direction of shorter wave-length by the same condition. In this way the whole spectrum is divided into a number of contiguous divisions, or patches, which Dr. Green terms monochromatic.

References

  1. 1.

    Roy. Soc. Proc., B, 1910, vol. lxxxii, p. 458, and earlier writings.

  2. 2.

    NATURE, 1881, vol. xxv., pp. 64–66; "Scientific Papers", vol. i., p. 543 See also NATURE, August 18, 1910.

Download references

About this article

Publication history

Published

DOI

https://doi.org/10.1038/085421a0

Authors

    Comments

    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

    Newsletter Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing