光谱分布

The solar absorptance is calculated by assuming a Johnson solar spectra l irradiance distribution.

根据 Johnson太阳光谱分布计算了涂层的太阳光谱吸收系数。

After fast Fourier transform , the amplitude and phase of the THz pulse wave is given, then the refractive index and absorption of the material in THz region is extracted.

它以THz辐射作为探测源，利用电光采样或光电导采样方法直接记录THz辐射电场的振幅时间波形，通过傅立叶变换得到测量信号振幅和相位的光谱分布，进而获得材料在THz波段的吸收和色散等信息。

At the same time, the spectrum, luminous flux, and chromaticity coordinates of HPW-LEDs change with forward current are studied.

同时还测量了光谱分布、光通量、色坐标随电流的变化情况，对其中的变化规律进行了理论分析。

Innovation on the examined methods: It is satisfying and convenient in lighting engineering with applying radiance method in lighting lab, measuring by PR-650 chromo meter

测试手段的创新：论文利用PR-650光谱扫描色度计的测量计算，提出在普通光度学实验室里采用辐亮度法确定照明光源的辐射通量光谱分布，不但精度满足照明工程需要，活动板房道路照明安全研究而且方便快捷。

Light-emitting diode is a compound semiconductor device. In optical radiometry and calibration, LED has good performance of high luminance, energy-cost savings and long life.

发光二极管（LED是一种半导体固体发光器件，在可见-近红外波段的光辐射测量和光电探测器的定标中，显示出高辐射亮度、高电光转换效率、可组合调配光谱分布、发光性能稳定等独特优点，可作为辐射度学、光度学和色度学研究的新型参考光源。

Different from free space, a microcavity laser has dimensions on the order of the emitted wavelength, so the spacing and spectra distributions of EM modes can't be described by a smoothly continuous distribution function.

一个微腔激光器，其谐振腔至少有一维的尺寸可与其发射的波长相比拟，与自由空间不同，因而电磁模的空间和光谱分布再不能用平滑连续分布函数来描写。

As the condition of Gaussian approximation for the spectral distribution of input optical signal,the expression of transmission efficiency of arrayed waveguide grating comb bandpass filter is recommended.

在输入信号光谱分布高斯近似条件下，给出了阵列波导光栅梳状带通滤波器信号通道传输效率的计算表达式和输入信号光谱宽度对阵列波导光栅梳状带通滤波器信号通道输出特性的影响。

Secondly, based on a lot of experiments, the method to obtain visual information during aluminum alloy pulse TIG welding is presented. According to the intensity and spectrum distribution of TIG arc of aluminum alloy, the composited wideband filter system were developed to overcome the arc disturbance to weld pool images.

通过大量的实验，探索了铝合金脉冲TIG焊条件下熔池视觉信息的获取方法，根据铝合金TIG焊弧光辐射的强度分布和光谱分布特点，利用熔池反射电弧光的低强度的连续光谱作为照明光源，设计了宽带复合滤光系统，克服了铝合金表面反射的高强度电弧光对熔池视觉信息的干扰。

Description of the spectral character of a radiation by the relative spectral distribution of some radiometric quantity radiant flux (power, radiant intensity, etc..

用某一辐射度量的相对光谱分布对一辐射的光谱特性进行的描述。

Based on Fermat's principle and light path function, it gets the spectral distribution of the incident rays, and it can get the ray tracing map through a matrix method.

在费马原理的基础上利用光程函数法得到入射光通过光栅后的光谱分布情况，再使用传输矩阵的计算方法构造出光谱的点列图。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。