NCS颜色空间标号的扩充方法研究

为了对现有NCS颜色空间的标号进行扩充,通过分析NCS图谱集上样本的CIE1976L a b 的值与NCS颜色空间坐标的关系,将NCS标号间隔单位由图谱集中的每10个黑度、艳度单位扩充至每1个黑度、艳度单位。应用样条插值、线性插值算法计算出这些扩充标号对应的CIELAB值,并将它们绘制在CIELAB空间图上。     

单光路分光光度计中光源影响的软件补偿方法

在单光路分光光度计中,照明光源随时间变化的不稳定性通常对颜色测量有很大的影响。在分析了光源随时间变化规律的基础上,提出了用软件自动修正单光路分光光度计的测量结果,从而排除了光源不稳定性所带来的影响。由实验数据找出的规律构造了两个修正因子:时间修正因子和波长修正因子。用它们对测量结果进行修正。实验证明这种方法有效的减弱了光源的影响。     

Study on the wavelength calibration of type Ⅲ concave grating spectrometry system

We discuss and calibrate the spectronietry system based on concave reflection grating. The working principle, structure and parameters of the spectronietry system are introduced. For the wavelength calibration problem, three methods are put forward and discussed in detail with formulation calculation method, circular iteration method and interpolation. Interpolation is used to calibrate the concave reflection grating     

Study on the wavelength calibration of type III concave grating spectrometry system

We discuss and calibrate the spectrometry system based on concave reflection grating. The working principle, structure and parameters of the spectrometry system are introduced. For the wavelength calibration problem, three methods are put forward and discussed in detail with formulation calculation method, circular iteration method and interpolation. Interpolation is used to calibrate the concave reflection grating spectrometry system and the error is less than 1 nm. Four spectrum images that the system collected are given in this paper. The experimental results indicate that a spectrometry system can be based on concave reflection grating and be calibrated by interpolation.