两种不同外形红外发光管的光学性能比较

Compariosn of optical properties between two infrared luminotrons with different contours

本文用几何光学基本定律对两种不同外形发光管的光学性能作了一般性的分析和探讨。通过具体的计算，从等效发光点、可被利用光能、聚光性能和使用场合等方面对它们进行了比较，用以指导光路设计。

In the light of basic law of geometrical optics, the optical properties of two infrared luminotrons with different contours are analyzed and studied in general. They are compared by practical calculation from the equivalent luminous point , usable optical energy, focussing performance and applied situation, so as to guide the optical design. Suggestion for improvement is put forward.