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首页> 外文会议>Conference on Modeling and Characterization of Light Sources, Jul 8-9, 2002, Seattle, USA >Photometry maps to characterize incandescent and halogen lamps
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Photometry maps to characterize incandescent and halogen lamps

机译：测光图可表征白炽灯和卤素灯

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摘要

In lamp development and quality control we are often faced with small differences between lamps in a batch or changes in lamp characteristics during life that we want to understand. The paper describes a practical and powerful tool to guide the interpretation, viz. a photometry map in which the luminous flux of a lamp is plotted versus the electrical power input in a relative way. Due to the physical properties of tungsten, there are only a limited number of directions in such a plot. At constant voltage, two principal directions are shifts related to variations in filament dimensions that go in the direction of +2.5% increase in luminous flux for +1% power increase, and shifts related to variations in convective losses that go in the direction of 8% drop in flux for 1% increase in power. Other relevant directions are related to external resistive circuit elements and blackening. A number of cases in which these plots have been applied are described. They show that the maps give clues to complex lamp phenomena. However, the agreement between the experimentally observed shifts and some predicted values is unsatisfactory.
机译：在灯泡的开发和质量控制中，我们经常要面对一批灯泡之间的细微差异，或者我们想要了解的使用寿命内灯泡特性的变化。本文介绍了一种实用而强大的工具来指导解释，即。一张测光图，其中以相对方式绘制了灯的光通量与输入的电力的关系。由于钨的物理特性，在这种图中只有有限数量的方向。在恒定电压下，两个主要方向是与灯丝尺寸变化有关的位移，在功率增加+ 1％时光通量增加+ 2.5％，而与对流损耗变化有关的位移沿8方向磁通下降百分比，功率增加1％。其他相关的方向与外部电阻电路元件和黑化有关。描述了应用这些绘图的许多情况。他们表明，这些地图为复杂的灯现象提供了线索。但是，实验观察到的偏移与某些预测值之间的一致性并不令人满意。

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