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New Advancements in Medium Wattage Ceramic Metal Halide Lamps

机译：中功率陶瓷金属卤化物灯的新进展

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A family of medium wattage ceramic discharge metal halide (CDM) lamps operating on magnetic ballasts was introduced several years ago to the North American market. These medium wattage (MW) lamps (175W - 400W) provide excellent color consistency, high color rendering properties, and long life. However, due to tungsten sputtering and evaporation, wall blackening and consequent lumen reduction is inevitable at late life. Moreover, the efficacy for these lamps is typically in the moderate range of 90 lumens per watt.rnIn this article we present the new technically advanced medium wattage ceramic discharge metal halide lamps that operate on new efficient electronic ballasts. The features and performance for these technically advanced MW ceramic lamps are compared with the three existing metal halide lamps; probe-start (also known as switch-start) quartz metal halide lamp, pulse-start quartz metal halide lamp, and the first generation ceramic metal halide lamp. By utilizing new chemical fillings and an optimized arc tube shape, the new MW ceramic metal halide lamps have high efficacy up to 123 lumens per watt, excellent lumen maintenance, and long service life. The typical color rendering index (CRI) is 90 and the saturated red color index (R9) is 40 or higher. Furthermore, the lamps are compact and suitable for universal operation, which are desirable for improving optical performance and overall fixture efficiency. The lamps are dimmable to 50 percent of the nominal power. With these new and improved features, the next generation of energy efficient MW CDM lamps is ideal for general lighting applications including outdoor, high bay industry, public spaces, and retail lighting.
机译：几年前，在电磁镇流器上工作的一系列中瓦数陶瓷放电金属卤化物（CDM）灯被引入北美市场。这些中功率（MW）灯（175W-400W）具有出色的色彩一致性，高显色性和长寿命。然而，由于钨的溅射和蒸发，壁的发黑和随之而来的流明减少在使用寿命的后期是不可避免的。而且，这些灯的效率通常在每瓦90流明的中等范围内。在本文中，我们介绍了在新的高效电子镇流器上运行的技术先进的中瓦数陶瓷放电金属卤化物灯。将这些技术先进的中波陶瓷灯的特征和性能与现有的三种金属卤化物灯进行了比较。探针启动（也称为开关启动）石英金属卤化物灯，脉冲启动石英金属卤化物灯和第一代陶瓷金属卤化物灯。通过利用新的化学填充物和优化的弧光管形状，新型MW陶瓷金属卤化物灯具有高达123流明/瓦的高效率，出色的流明维持率和较长的使用寿命。典型的显色指数（CRI）为90，饱和红色指数（R9）为40或更高。此外，这些灯是紧凑的并且适合于通用操作，这对于提高光学性能和整体灯具效率是理想的。这些灯可调节至额定功率的50％。凭借这些新功能和改进的功能，下一代节能MW CDM灯非常适合一般照明应用，包括室外，高架工业，公共场所和零售照明。

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