the paper reports a basic method to extract natural pigment from sugarcane skin and carries out the determination of pigment by the ultraviolet and visible light spectrum and infrared spectrum.
研究了以紫色甘蔗皮为原料提取色素的基本方法,并进行了紫外可见光谱、红外光谱的测定。
the average transmittance of the coatings in visible light spectrum is up to 75%, and 73% in infrared region, which can provide effective insulation for heat radiation.
光谱分析证实其在可见光区平均透过率可达75 % ,在红外区阻隔率达到73% ,能对热辐射起到有效的阻隔作用。
the conversion method for three-primary colors of rgb and visible light spectrum is proposed. the function relation between three-primary colors of rgb and single color wavelength is established.
提出了rgb三原色与可见光光谱的转换方法,建立了rgb三原色与单色光波长的函数关系。