利用超光线概念计算冷屏内壁表面辐射能量在探测器芯片上的分布状态  

Computation of Distribution of Radiant Energy from Inner Wall Surfaceof Cold Shield on the Detector Chip with Concept of Hyper-ray

作　　者：王忆锋[1] 王丹琳[1] 

机构地区：[1]昆明物理研究所,云南昆明650223

出　　处：《云光技术》2012年第1期7-12,共6页

摘　　要：基于几何光学、辐射度学和光量子理论的基本原理，提出了超光线（hyper-ray）概念，超光线携带的能量与物体表面的辐射能量直接相关。将冷屏内壁表面辐射抽象为一定数量、并用MATLAB随机产生的超光线，追踪它们的去向，将其中直接投射、或者经过一次反射后落入探测器各光敏元的超光线所携带的能量相加，即可得到冷屏内壁自身辐射在探测器芯片上的分布状态。The concept of hyper-ray is proposed on the basis of geometric optics, radiometry and opto-quantum theory. The energy that carried out by hyper-ray is directly associated with the radiant energy that emitted from object＇s surface. The radiation from inner wall surface of a cold shield can be abstracted into a certain amount of hyper-rays which could be generated randomly with MATLB. Through tracing their directions, the distribution of radiant energy from inner wall surfaces of cold shield on the detector pixels can be obtained after added up the energy that carded out by hyper-rays that projected directly or fallen after a reflection into the pixels.

关 键 词：冷屏内壁表面 表面辐射 红外成像系统 蒙特卡罗方法 

分 类 号：TU226[建筑科学—建筑设计及理论]