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在一般具有低 f 数的光学系统结构中,需要有许多折、反射零件。当这样的系统在一个温度变化范围很大的环境里工作时,其准确性和机械稳定性就会发生问题。利用入射面直径大于出射面直径的锥体纤维光学零件,可以导象和减少成象尺寸。如果用一个长焦距和有效通光口径大的单透镜,就能成象在锥体光纤零件的入射面上。由于通过锥体光纤零件每个单位面上的光通量有一个增益,所以,这样的系统就会增强和口传导透镜所成的象。不仅如此,它还可以使用一个小尺寸的探测器而得到一个较高的信噪比。为此,本文还介绍并阐明了一个有效的光学系统。
In general optical system architectures with low f-numbers require many folding and reflecting parts. When such a system operates in a wide temperature range, problems arise with its accuracy and mechanical stability. The use of pyramidal fiber optic components with a larger incident surface diameter than that of the exit surface permits the imaging and reduction of imaging dimensions. If a single lens with a long focal length and an effective aperture is used, the incident plane of the conical fiber optic component can be imaged. Due to the gain of the luminous flux per unit plane through the conical fiber optic component, such a system enhances the image formed by the port-conducting lens. Not only that, it can also use a small size detector to get a higher signal-to-noise ratio. To this end, this article also describes and illustrates an effective optical system.