分析了pgp光谱成像系统的原理、特点，对参数关系和体全息相位型光栅的衍射效率进行了详细的讨论。 分析结果表明：PGP元件在整个光谱范围内理论衍射效率大于0.6，采用ZEMAX软件 …

摘 要:针对棱镜- 光栅- 棱镜(PGP) 型成像光谱仪谱线弯曲(Smile)难校正的问题,提出了一种利用狭缝离轴和减小第一块棱镜顶角,再结合会聚镜畸变校正PGP型光谱仪谱线弯曲的方法。 该方法在 …

The design results show that the use of curved slit and distortion of the collimator lens and focusing lens can effectively correct the curve of the spectral line, which has important guiding …

2011年6月1日 · Prism-grating-prism (PGP) module is the important dispersing component in the hyper spectral imager. In order to effectively predict the distribution of diffraction...

2008年12月1日 · The principle, structure, and optimized design of the PGP imaging spectrometer are given in detail. Its front collimation optics and rear focusing lenses are same so as to …

2012年4月8日 · PGP元件结合了光栅和棱镜在单独作为分光 元件时色散方向的一致性和谱线弯曲的相反特 性，在中心波长处可以实现光谱直进直出，两者光

A method was put forward to eliminate spectral line bending (Smile) of Prism-Grating-Prism (PGP) spectrometer by reducing the vertex angle of the first prism and combining with off-axis slit and …

摘要: 针对棱镜-光栅-棱镜(PGP)型成像光谱仪谱线弯曲(Smile)难校正的问题，提出了一种利用狭缝离轴和减小第一块棱镜顶角，再结合会聚镜畸变校正PGP型光谱仪谱线弯曲的方法。该方法在 …

PGP spectrograph design for a high-speed interrogation system for large-scale fibre optic Bragg grating arrays is described. Today PGP spectrographs are used world-wide for industrial …

设计了一种基于棱镜-光栅-棱镜(Prism-Grating-Prism,PGP)分光器件的新型成像光谱仪.论述了此成像光谱仪的工作原理和结构形式, 包括PGP、准直物镜和成像物镜的设计要求.PGP元件中采用 …