β-胡萝卜素UV-visSpectrum of B-carotene100理想缘5405605804500白橙青?490700红400480#蓝Wavelength (tm)紫红紫400理想蓝理想红11
β-胡萝卜素 11
TABLE17-1Colors of visible lightWavelength of maximumColorColorabsorbedobservedabsorption (nm)380-420VioletGreen-yellow420-440Violet-blueYellowBlue440-470OrangeRed470-500Blue-greenPurple500-520GreenViolet520-550Yellow-greenYellowViolet-blue550-580Blue580-620OrangeRed620-680Blue-greenRed680-780Green12
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100--色素细胞构造含水量-.--80----11--叶绿素吸收水分吸收-60%率1--1I射反---40------11--1--11-20-1---111----.0211.50.52.5波长（μm）13图1.3绿色植物可见到近红外反射率
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(a)621435(b)
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(c)100叶子1叶子2叶子380叶子4叶子5(%）本Y叶子6604020祥品E1006°镜面反射100015002000500凌反射80波长（nm）60(%)205001000150025002000波长（nm)图4.11样品E在6°入射角时的反射率和浸反射率对比
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