Science news articles about 'luminous efficiency'

... the achievement of 28.5% internal quantum efficiency (IQE) in deep blue fluorescent OLED devices, the world's highest level of luminous efficiency for this technology ...

... new plasma diaplay panel (PDP) Panasonic developed with its new super-efficient quadruple luminance efficiency technology ...

... photometry is based entirely upon the photopic luminous efficiency function, which considers how the eye "sees ... sources used in nighttime applications in terms of energy efficiency and visual performance. NLPIP notes that, at the illuminance ...

... . The chip is used in the Oslux LED, which is therefore considerably more efficient at high currents than previous LEDs and is impressive for its very high luminous efficiency over a small area ...

... of lighting devices is called luminous efficiency and it measures the amount of visible light (lumens) a device ... ultraviolet LED, the hybrid device would have a luminous efficiency of about 40 lumens/watt," reported ...