On the standardization of VDT's proper and optimal contrast range

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<title>On the standardization of VDT's proper and optimal contrast range</title>
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<title>Ergonomics</title>
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<namePart>Zhu, Zuxiang</namePart>
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<namePart>Wu, Jianming</namePart>
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<dateIssued encoding="marc">1990</dateIssued>
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<abstract displayLabel="Summary">There are interactions in the effects of VDT luminance contrast and screen luminance on the operator's visual performance. The range of both optimal and proper contrast in the function of the level of background luminance on the screen. Increasing screen luminance results in a shift from optimal and proper contrast towards low contrast. The subjective evaluation method has the same validity as the performance index in assessing VDT display quality</abstract>
<note type="statement of responsibility">Zuxiang Zhu and Jianming Wu</note>
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<topic>Ergonomía</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080631079">
<topic>Pantallas de visualización de datos</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080558833">
<topic>Iluminación</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080540814">
<topic>Diseño</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080566678">
<topic>Normalización</topic>
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<topic>China</topic>
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<title>Ergonomics</title>
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<publisher>London and Washington</publisher>
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<part>
<text>Vol. 33, nº 7, July 1990 ; p. 925-932</text>
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