任何物质对太阳光都有吸收、反射、或透射的性质。我们根据光的漫反射原理研究了稀土铝合金型材(RE-8063)对光的反射性质,找出了稀土铝型材的反射率随稀土含量变化的规律,并发现稀土含量在0.22～0.25(wt)%之间,光的反射率有一最大值。说明在此稀土含量范围内,铝型材表面的光亮度高。从铝合金型材的反射率随波长(400～780nm)变化的研究中发现:着色后的铝型材在整个可见光区反射率随波长的 Any material that absorbs, reflects, or transmits sunlight to nature. Based on the principle of diffuse reflection of light, we studied the light reflection properties of rare earth aluminum alloy profiles (RE-8063) and found the regularity of the reflectivity of rare earth aluminum profiles with the change of rare earth content. We found that the rare earth content is 0.22 ~ 0.25 )%, The light reflectivity has a maximum value. This shows that in the rare earth content range, the aluminum surface of the high brightness. From the aluminum alloy profiles reflectance with the wavelength (400 ~ 780nm) changes in the study found that: after coloring the aluminum in the visible range of reflectivity with wavelength