Degree of eye opening: A new discomfort glare indicator
The degree of eye opening (DEO) is proposed as a new indicator of glare in sunny climates in the presence of direct sunlight. A laboratory experiment was carried out (. n=20) in a simulated office space where volunteers performed computer office tasks. Four lighting situations, based on ranges of ve...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/40075 |
| Acceso en línea: | http://hdl.handle.net/11336/40075 |
| Access Level: | acceso abierto |
| Palabra clave: | Daylight Daylight Glare Index E≪Inf≫Mean≪/Inf≫ E≪Inf≫Min≪/Inf≫ Eg Eh Ev Ey L≪Inf≫B≪/Inf≫ L≪Inf≫S≪/Inf≫ Ocular Indicator Visual Comfort Ω |
| Sumario: | The degree of eye opening (DEO) is proposed as a new indicator of glare in sunny climates in the presence of direct sunlight. A laboratory experiment was carried out (. n=20) in a simulated office space where volunteers performed computer office tasks. Four lighting situations, based on ranges of vertical illuminance at the eye level were evaluated. By means of a visible spectrum eye-tracker DEO was registered in each scenario. The proposed indicator was obtained by mathematical iterations and showed a good correlation with: vertical illuminance at the eye (. r=-0.503; α=0.0001), Daylight Glare Probability (DGP) (. r=-0.649; α=0.0001) and Glare Sensation Vote (GSV) (. r=-0.580; α=0.0001). This new indicator operates in a broad range of lighting conditions, from a low vertical illuminance at the eye scenario with diffuse daylight to a very high vertical illuminance at the eye scenario with uncontrolled direct sunlight. The proposed new indicator satisfies the following criteria: high validity, reliability, diagnostic power and acceptability and it also addresses unresolved aspects of current glare predictive models: GSV, DGP and DGI. |
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