Document Detail

Duration of afterimage disability after viewing simulated sun reflections.
MedLine Citation:
PMID:  20072524     Owner:  NLM     Status:  In-Data-Review    
A scene was simulated of an automobile driver's view through his windshield. It contained a roadway, an identification target consisting of a Landolt C in various orientations on the road 96 m ahead, and a glare reflection of the sun arising from the direction of the driver's windshield wiper arm. The product of luminance times area of each of the four glare sources employed was about 0.1 of the maximum implied in the Federal Safety Standards. The target required a visual acuity of 20/40 on the Snellen scale, equal to that imposed by driver license requirements. After being exposed for realistic intervals while looking directly at the glare source, the duration of the interval required by thirty-five observers for identification of the target orientation was measured. Averages showed that the increase of identification time over that required after no glare exposure varied from 0.8 sec to 2.7 sec. Reduction of apparent area of the glare source reduced afterimage disability more than did reduction of intensity.
R L Saur; S M Dobrash
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  8     ISSN:  0003-6935     ISO Abbreviation:  Appl Opt     Publication Date:  1969 Sep 
Date Detail:
Created Date:  2010-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1799-801     Citation Subset:  -    
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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