TY - JOUR
AU - Bulson, J M
AB - Flat, thin and lightweight lamps providing spatially uniform and dimmable illumination from active areas as large as 400cm2 are being developed for general illumination and specialty applications. Comprising an array of low-temperature, nonequilibrium microplasmas driven by a dielectric barrier structure and operating at pressures of typically 400700Torr, these lamps have a packaged thickness <4mm and yet produce luminance values beyond 26000cdm2 with a luminous efficacy approaching 30lmW1. Third generation lamps, presently in limited production, offer a correlated colour temperature in the 30004100K interval and a colour rendering index of 80. Current lamps employ Xe2 (  172nm) as the primary emitter photoexciting a mixture of phosphors, and the pressure dependence of the wavelength-integrated fluorescence from the electronically excited dimer has been investigated with a vacuum ultraviolet spectrometer. In contrast to other promising lighting technologies, the decline in luminous efficacy of microplasma lamps with increasing power delivered to the lamp is small. For a 6 × 6 inch2 (225cm2) lamp, efficacy falls <16% when the radiant output (luminance) is raised from 2000cdm2 to > 10000cdm2.
TI - Microplasma light tiles: thin sheet lamps for general illumination
JF - Journal of Physics D: Applied Physics
DO - 10.1088/0022-3727/44/22/224011
DA - 2011-06-08
UR - https://www.deepdyve.com/lp/iop-publishing/microplasma-light-tiles-thin-sheet-lamps-for-general-illumination-cbU3aC0zK3
SP - 224011
VL - 44
IS - 22
DP - DeepDyve
ER -