Firelight LED Source: Toward a Balanced Approach to the Performance of Solid-State Lighting for Outdoor Environments
| Autor: | Arunas Tuzikas, A. Svegzda, R. Stanikunas, Pranciškus Vitta, Arturas Zukauskas, Andrius Petrulis, Rimantas Vaicekauskas, P. Eidikas |
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| Rok vydání: | 2014 |
| Předmět: |
lcsh:Applied optics. Photonics
Materials science Skyglow Mesopic vision Color temperature Luminance law.invention Optics psychophysics law lcsh:QC350-467 Electrical and Electronic Engineering outdoor lighting business.industry light pollution lcsh:TA1501-1820 Illuminance solid-state lighting Sodium-vapor lamp Light emitting diodes Atomic and Molecular Physics and Optics photophysiology Solid-state lighting Optoelectronics business Luminous efficacy lcsh:Optics. Light |
| Zdroj: | IEEE Photonics Journal, Vol 6, Iss 3, Pp 1-16 (2014) |
| ISSN: | 1943-0655 |
| DOI: | 10.1109/jphot.2014.2319102 |
| Popis: | We report on a blue-amber (“firelight”) cluster of light-emitting diodes (LEDs) with extra-low correlated color temperature (~1860 K) optimized for outdoor lighting under mesopic conditions. When compared with common white LEDs, the firelight LED cluster shows considerably reduced indexes of melatonin suppression and skyglow, increased retinal illuminance for elderly people, but a reduced performance of perceiving colors, which, however, can be tolerated at mesopic luminance. In comparison with an almost metameric high-pressure sodium lamp, the cluster exhibits a potentially higher luminous efficacy, similar reaction time and detection threshold of luminance contrasts for achromatic targets, and noticeably improved color discrimination characteristics. |
| Databáze: | OpenAIRE |
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