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首页> 外文会议>Conference on reflection, scattering, and diffraction from surfaces >An optical accessory for absolute reflection and transmission measurementsin the wavelength region from 0.24μm to 25μm
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An optical accessory for absolute reflection and transmission measurementsin the wavelength region from 0.24μm to 25μm

机译：用于绝对反射和传输测量的光学配件从0.24μm到25μm的波长区域

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Five methods for the measurement of absolute reflectance are described and compared. Four of the methods, the V-W,V-N, integrating sphere and goniometer methods, have been in use for a number of years. The fifth is a new STAR GEMmethod. The acronym of STAR GEM is from the capital letters of Scatter, Transmission, and Absolute Reflectionmeasurements using a Geminated Ellipsoid Mirror. Only the goniometer and STAR GEM methods can be used tomeasure reflectance and transmittance at almost any angle of incidence. The STAR GEM is used in conjunction with anFTIR (Fourier-transform infrared) spectrophotometer and also with a grating spectrophotometer to make reflectance andtransmittance measurements in the wavelength region from 0.24μm to 25μm. Ordinate errors of the FTIRspectrophotometer are estimated from these measurements in the overlapping wavelength region made by bothspectrophotometers. A reflectance measurement of a non-plane surface, such as a surface of micro-ball lenses, can alsobe made using the STAR GEM.
机译：描述和比较了用于测量绝对反射率的五种方法。四种方法，V-W，V-N，集成球和测筒仪方法的四个方法已经使用了多年。第五个是新星宝石。星形宝石的首字母缩略词来自使用牙釉质的椭球镜的散射，传输和绝对反射模型的大写字母。只有测量计和星形宝石方法可以在几乎任何入射角下使用可释放的反射率和透射率。星形宝石与Anftir（傅里叶变换红外）分光光度计结合使用，并且还具有光栅分光光度计，以使波长区域的反射和分组测量从0.24μm到25μm。从两种分光光度计制造的重叠波长区域中的这些测量估计FTIRSpectoPolometer的纵坐标。非平面表面的反射率测量，例如微球镜片表面，可以使用星形宝石制成的展位。

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