Derived Illumination Specifications.
The article presents a study which evaluated the Weston-Crouch system of computing illumination intensities for a specified maximum visual performance percentage. H.C. Weston studied the effect of the size of work and brightness contrast to formulate a method to derive the illumination intensity nee...
| Publicado en: | Journal of Applied Psychology Vol. 35; no. 6; pp. 377 - 381 |
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| Autor principal: | |
| Formato: | Artículo |
| Publicado: |
American Psychological Association
Dec51
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| Sumario: | The article presents a study which evaluated the Weston-Crouch system of computing illumination intensities for a specified maximum visual performance percentage. H.C. Weston studied the effect of the size of work and brightness contrast to formulate a method to derive the illumination intensity needed for a given percentage of maximum visual efficiency. C. L. Crouch expanded Weston's technique by using more definite formulation and devising a monogram for the computation. In the study, the illumination intensities needed for fastest reading of newsprint and book print were compared with the corresponding intensities derived from the computations. |
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