对相调制光谱椭偏仪进行了用户级别的校准,结合椭偏理论简要讨论了校准的原理,测试结果表明椭偏角准确度达到0.01°.探讨了人为造成的准直调节不一致性以及样品膜层的不均匀性对样品测量结果的影响.对热氧化硅样片测量结果进行了统计分析,该工作是进一步研究椭偏仪误差和校准方法以及阿伏加德罗常数项目硅球表面层研究的基础.
本文对彩色分析仪进行研究,介绍了其测量原理和校准方法.根据实验测量结果,计算其在不同条件下产生的测量不确定度,并给出不确定度概算结果,使彩色分析仪能准确有效地检定液晶显示器(LCD).
The standard white field instrument traceable to the national spectral radiometric,photometric and colorimetric primary standard was set up for characterizing the photometric and colorimetric parameters of displays.The instrument was calibrated and its spectrum,stability and photometric-colorimetric parameters were given.Using the instrument to study the viewing angle of prevail liquid crystal displays,the influence of the variation of the light-emitting surface during the measurement process was considered,which was usually ignored.The results indicate a difference of more than 8% for the absolute-luminance-based viewing-angle threshold method,which should be considered and avoided in the measurement.
