Two-mirror five-reflection optical system design
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摘要: 利用反射式光学系统宽光谱，无色差，纵向外形尺寸小等特点，提出一种采用两镜系统为原型的五反光学系统，实现了宽光谱（0.4 m~12 m）、长焦距(1.6 m)、小型化(总长85 mm)光学系统设计。2个反射面引入高次非球面，经像差平衡设计，像质达到使用要求。轴外视场激光能量经两镜五反系统聚焦后，激励光谱转换靶使之发出可见光长波红外光谱，为光电装备的光轴调校提供模拟的无穷远目标。Abstract: Reflective optical system has characteristics of wide spectrum, no chromatic aberration and small vertical dimension, based on these a two-mirror fivereflection optical system is proposed, which has a wide spectrum of 0.4 m~12 m, long focal length of 1.6 m, overall length of less than 85 mm. High order aspheric surface is introduced into the two reflecting mirrors, and through the aberration balance, the image quality satifies requirement. A new photoelectric conversion material is also used to make the reticle in this system, if the laser beam focus on it, laser energy will excite visible light-long wave infrared spectroscopy, which offers simulated infinity goals for optical axis adjustment of optoelectronic products.
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