译者注：色温是表示光源光色的尺度，单位为K开尔文。色温是在摄影、录象、出版等领域具有重要应用。
Kelvins: a CFL's color is indicated by the Kelvin (k) temperature (listed on the package).
这种电池可以利用许多令人惊奇的光源，他表示，包括某些最微弱的光源。
The cells draw on many surprising sourcesof light, he said, including some that offer the barest trickle.
在柱坐标下从微分波动方程出发，推导柱面光波的场分布，并利用远场近似条件导出当线光源与光轴成任意角度时，在垂直光轴方向的参考面上的复振幅表示。
The expression of complex amplitude is given in reference plane vertical to the optical axis by far-field approximation when the line source and the principal axis are at any Angle.
欧司朗表示，“这意味着，仅需一个38度的反射器，我们就可以使用一个高度两米的光源，在桌面上达到超过500勒克斯的照度水平。”
"What this means in actual practice is that a single device with a 38 degree reflector is all that is needed to illuminate a desk with more than 500 lux from a height of two meters," said Osram.
在柱坐标下从微分波动方程出发，推导柱面光波的场分布，并利用远场近似条件导出当线光源与光轴成任意角度时，在垂直光轴方向的参考面上的复振幅表示。
Starting from the wave differential equation, a method is deduced to express the complex amplitude of light wave fields in the reference plane which is vertical to the optical axis.
根据部分相干光的相干模表示法，推导了由部分相干光源所产生光束的相位一空间积Q。
The generalized expression for the phase-space product Q of a beam generated from a partially coherent source is presented by using coherent-mode representation of partially coherent beams.
根据部分相干光的相干模表示法，推导了由部分相干光源所产生光束的相位一空间积Q。
The generalized expression for the phase-space product Q of a beam generated from a partially coherent source is presented by using coherent-mode representation of partially coherent beams.
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