“日盲”紫外信号目标模拟器光学系统设计

Optical Design of Solar Blind Ultraviolet Signal Target Simulator

"日盲"紫外探测系统由于工作在日盲区,具有独特的探测优势,在民用和军事领域都得到了广泛的关注和应用。完成了"日盲"紫外信号目标模拟器光学系统的研究和优化设计。基于"日盲"紫外光谱特性,研究目标模拟器的设计的工作原理和设计方法,给出了"日盲"紫外信号目标模拟器的光学系统设计和像差评价。设计完成了一款焦距500mm、相对孔径1/10、波段0.24μm^0.28μm、视场角2°的"日盲"紫外信号目标模拟器系统。系统共采用了4片球面透镜,由两种紫外光学材料组成,光学系统总长540mm,光学传递函数在37lp/mm时大于0.7,畸变小于0.005%,具有成像质量好、结构简单紧凑的优点和很高的应用价值。

Solar blind ultraviolet detection system worked in solar blind area has unique advantages, which has been widely used in civil and military fields. In this paper, solar blind ultraviolet signal target simulator optical system has been studied and designed. Based on characteristics of solar blind ultraviolet spectrum, target simulation has been ana- lyzed. A target simulator, blind ultraviolet signal optical system design and the aberration evaluation have been present- ed. The system is with focal length of 500mm, relative aperture of 1： 10, waveband of 0.24μm-0.28μm and view an- gle of 2°. System adopts 4 imaging lenses with total length of 540mm, optical transfer function of greater than 0.7 at 371p/mm, distortion of less than 0.005%, which has good image quality, the advantages of simple and compact struc- ture and high application value.