本文评述了光学选类星体光度函数演化的研究方面取得的进展。
This paper reviews the progress on studies of the cosmic evolution of the luminosity function of optically selected quasars.
光度函数是作为某一波段的光度或亮度的函数的特定种类的天体数目。
A luminosity function is the number of objects of a particular sort as a function of their luminosity or brightness in some wavelength band.
在本文中，我们研究河外天体的红移分布和它们的光度函数之间的关系。
In this paper, we investigate the relation between the redshift distribution and the luminosity function of extragalactic objects.
利用迄今得到的321个脉冲星的资料，研究了脉冲星的光度函数和在银河系内的分布。
With the data of 321 pulsars the Galactic distribution and luminosity function of pulsars have been investigated.
理论分析和实验结果表明，该方法比光度立体学、球谐函数方法具有较高的精度和较强的实用性。
Theoretical analysis and experimental results both show that our method has higher precision and better practicability compared with photometric stereo harmonic image method.
在测量范围内可以产生单色辐射光学系统的分光光度计也可以使用。通常光谱是透光度（透射光强度与入射光强度之商）的函数。
Normally the spectrum is given as a function of transmittance, the quotient of the intensity of the transmitted radiation and the incident radiation.
阻光度传递函数；
阻光度传递函数；
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