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Lighting Research and Technology
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Print quality and visual performance

E.M. Colombo

Laboratorio de Lumotecnia, Facultad de Ciencias Exactas y Tecnologia, Av. Independencia 1800, 4000 Tucuman, Argentina

C.F. Kirschbaum

Laboratorio de Lumotecnia, Facultad de Ciencias Exactas y Tecnologia, Av. Independencia 1800, 4000 Tucuman, Argentina

The print quality of reading and writing tasks affects the visual performance of observers. A set of 4760 results obtained with two kinds of task, word search and comparison of numerals, shows that the border definition of the marks is an important contributory parameter to high visual performance indices, while the influence of luminance is relatively weaker. At the same time assessment tests indicate that luminance is significant in defining the preferences of the observers. The tests were carried out with four levels of adaptation luminance: 15, 50, 110 and 250 cd m-2.

Lighting Research and Technology, Vol. 22, No. 2, 85-93 (1990)
DOI: 10.1177/096032719002200203
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