OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 41, Iss. 2 — Feb. 1, 1951
  • pp: 120–120

The Effect of Varying the Light-Dark Ratio of Intermittent Pre-Exposure upon Subsequent Dark Adaptation in the Human Eye

F. A. MOTE and A. J. RIOPELLE  »View Author Affiliations


JOSA, Vol. 41, Issue 2, pp. 120-120 (1951)
http://dx.doi.org/10.1364/JOSA.41.000120


View Full Text Article

Acrobat PDF (575 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The course of dark adaptation was followed after pre-exposure to both intermittent and continuous light. The variable under investigation was the influence of the light-dark ratio of the intermittent pre-exposure. The rate of intermittence was 1 cycle/second and four light-dark ratios were used: ½-½, ¼-¾, ⅛-⅞, and 1/16-15/16. The intensities of pre-exposure were: 8860, 886, and 88.6 mL. At the lowest intensity no differences were found between any of the intermittent and their continuous control pre-exposures. At the two higher intensities the curves for the intermittent procedures were different from the control procedures and the differences were related to the light-dark ratios. It was found that, on the whole, the shorter the amount of light-time in the ratio the lower was the initial dark adaptation threshold, the greater the difference between the experimental and control curves throughout the course of dark adaptation, and the shorter the time elapsing before the appearance of the first colorless (rod) threshold stimulus.

Citation
F. A. MOTE and A. J. RIOPELLE, "The Effect of Varying the Light-Dark Ratio of Intermittent Pre-Exposure upon Subsequent Dark Adaptation in the Human Eye," J. Opt. Soc. Am. 41, 120-120 (1951)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-41-2-120

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited