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| Titel: |
Retinal adaptation to non-uniform fields: average luminance or symbol luminance? |
| Auteur: |
Rupp, Bruce A. Taylor, Stanley E. |
| Verschenen in: |
Behaviour & information technology |
| Paginering: | Jaargang 5 (1986) nr. 4 pagina's 375-379 |
| Jaar: |
1986-10-01 |
| Inhoud: |
Various lighting and video display terminal design recommendations have been based on the assumption that the eye adapts to the average luminance of the field being viewed. Other evidence suggests that for irregular patterns the eye adapts to a level biased toward the peak luminance in the field being viewed. Subjects in this study adapted to uniform fields of varying average luminance and to two test patterns, one of which (dots) had a peak luminance equal to the brightest uniform field and an average luminance equal to the least bright uniform field. Time, to respond to a test pattern following adaptation to dots was intermediate between the two extreme uniform fields, but closer to that of the brighter field which had an average luminance equal to the test pattern's peak luminance. For that reason, proposed lighting differences based on image polarity or recommendations of positive image polarity do not appear to be warranted. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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