基于硫系玻璃的折衍混合光学无热化镜头设计  

Design of refractive/diffractive hybrid optical athermalization lens based on chalcogenide glass

作　　者：杨加强[1] 彭晴晴[1] 刘琳[1] 李荣刚[1] 孙昌锋[1] 

机构地区：[1]华北光电技术研究所,北京100015

出　　处：《激光与红外》2017年第2期225-229,共5页Laser & Infrared

摘　　要：针对非制冷红外镜头高分辨率、批量化和低成本的需求,通过硫系玻璃和锗单晶的材料搭配,利用折衍混合的设计方法,设计一款仅包含三片,可用于枪瞄、车载夜视和安防监控等领域的光学被动补偿无热化镜头。在理论推导的基础上,进行了相应的工程化设计,提出了满足精密模压生产工艺的光学设计方案。实验验证表明,该镜头在-40~55℃范围内成像清晰,满足指标要求。在实际工程应用中,具有生产成本低、成像性能好等特点。Aiming at the needs of high resolution,batch production and low cost for uncooled infrared lens,taking chal-cogenide glass and Ge crystal as the materials,a passive optical compensation athermal lens for gun sight,automotive night vision and security monitoring was designed based on refractive-diffractive mixing design method.According to optical athermalization theory,optical path of the system was designed,and chalcogenide glass was manufactured by fine molding technology.The experimental results show that the imaging of the system with this lens is clear within the range of -40 -55 ℃,and it can meet design requirements.It has an advantage of low cost in practical engineering application.

关 键 词：红外系统 光学无热化 硫系玻璃 衍射元件 

分 类 号：TN214[电子电信—物理电子学]