CAJ | 학술논문

以光源发射光谱和逆反射材料光谱反射率曲线为基础，通过数据拟合的方式研究了多种光源照射条件下材料逆反射系数的相对关系及其变化趋势。在已有标准A光源测试系统基础上，分别测试氙灯、卤素灯、不同色温白光L ED光源发射光谱和红、黄、白、绿、蓝五种逆反射材料的光谱反射率曲线，并通过拟合计算得到同一材料在不同光源照射条件下的相对逆反射系数修正因子。分析结果表明，在可见光范围内具有连续光谱反射率曲线分布的白色材料逆反射系数数值受入射光源光谱变化较小，而单色材料逆反射系数受入射光源光谱差异影响较大，且呈现不同的变化趋势：以卤素光源入射条件下材料逆反射系数测试结果为基础值，不同色温的白光L ED、氙灯光源对红色和黄色材料逆反射系数具有正增益效果，且随着光源色温的升高，红色和黄色材料逆反射系数呈下降趋势，降幅最高分别达到47.7％和4.9％；绿色和蓝色材料逆反射系数呈上升趋势，涨幅最高达到16.5％和28.9％。
이광원발사광보화역반사재료광보반사솔곡선위기출，통과수거의합적방식연구료다충광원조사조건하재료역반사계수적상대관계급기변화추세。재이유표준A광원측시계통기출상，분별측시선등、서소등、불동색온백광L ED광원발사광보화홍、황、백、록、람오충역반사재료적광보반사솔곡선，병통과의합계산득도동일재료재불동광원조사조건하적상대역반사계수수정인자。분석결과표명，재가견광범위내구유련속광보반사솔곡선분포적백색재료역반사계수수치수입사광원광보변화교소，이단색재료역반사계수수입사광원광보차이영향교대，차정현불동적변화추세：이서소광원입사조건하재료역반사계수측시결과위기출치，불동색온적백광L ED、선등광원대홍색화황색재료역반사계수구유정증익효과，차수착광원색온적승고，홍색화황색재료역반사계수정하강추세，강폭최고분별체도47.7％화4.9％；록색화람색재료역반사계수정상승추세，창폭최고체도16.5％화28.9％。
Based on emission spectra of light sources and reflectivity curve of retroreflective materials ,relative relations and chan-ging trend of retroreflection coefficient of materials in different light sources was researched through data fitting .The tests were carried on the standard A light source test system .One kind of test results are emission spectra of halogen light source ,xenon light source and white LED with different color temperature .And another kind of results are reflectivity curve of retroreflective materials with five different colors such as red ,yellow ,white ,green and blue .Then the correction factors of retroreflection co-efficient in different light sources were obtained by test results and data fitting .It shows that the change inlight source spectra has no effect on retroreflection coefficient of white material ,which has continuous reflectivity curve in the range of visible light , but has some effect on retroreflection coefficient of the other color materials .Compared with halogen light source ,white LED and xenon light source can increase retroreflection coefficient of red and yellow materials ,and the increase in the color tempera-ture of light source will decrease retroreflection coefficient of red and yellow materials by the maximum of 47.7% and 4.9% . Conversely ,retroreflection coefficient of green and blue materials will increase by the maximum of 16.5% and 28.9% .