摘要
研究了棱镜色散型光谱仪的特点及分光原理,提出一种新型的小入射角棱镜分光光谱仪的设计方法。该光谱仪采用了全反射光路,不需要加入校正透镜,避免因色差引起的像差,成像质量好,可以有效地校正光谱弯曲。给出了成像光谱仪系统设计实例,运用光学设计软件Zemax对成像光谱仪光学系统的成像质量进行了分析。结果表明,光学系统在各个谱段的光学传递函数均接近衍射极限,光谱弯曲很小,完全满足设计指标要求。
The characteristics and principle of prism spectrometer are studied and a new method to design the prism spectrometer system with a small incident angle is proposed. This type of spectrometer uses reflective triplet optical path, so there is no need to add the correcting lens. The system has no aberration caused by the chromatic abberation and has excellent imaging quality. The spectral inflection can be corrected effectively. An optical system of imaging spectrometer is designed. The imaging quality is analyzed by using optical design software. The result shows that the modulation transfer function （MTF） of the system at different wavelengths is close to the diffraction limit and the design requirements are fully met.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2013年第9期232-236,共5页
Acta Optica Sinica
基金
国家863计划(2012AA121102)
关键词
光学设计
棱镜光谱仪
小入射角
optical design prism spectrometer small incident angle
