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Author (up) Zukauskas, A.; Vaicekauskas, R.; Tuzikas, A.; Petrulis, A.; Stanikunas, R.; Svegzda, A.; Eidikas, P.; Vitta, P.
Title Firelight LED Source: Toward a Balanced Approach to the Performance of Solid-State Lighting for Outdoor Environments Type Journal Article
Year 2014 Publication IEEE Photonics Journal Abbreviated Journal IEEE Photonics J.
Volume 6 Issue 3 Pages 1-16
Keywords LED; lighting; lighting technology; light emitting diode; firelight LED
Abstract 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.
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ISSN 1943-0655 ISBN Medium
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Call Number IDA @ john @ Serial 281
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