摘要
基于闪耀光栅的光学读出彩色红外成像根据闪耀光栅的高效分色原理工作。红外焦平面上的热量驱动红外热感应薄膜偏转,红外热感应薄膜有一个金属反射表面和一个吸热表面,具有闪耀光栅结构的红外热感应薄膜的金属反射面将照射到薄膜上的白色照射光分解成彩色光线,在特定衍射角度上放置CCD图像记录单元,即可记录不同转角对应的不同色彩,形成彩色红外图像.依据实验估算的NETD大约为39mK.
The optical readout color infrared imaging based on a blaze grating operates on the principle of highly efficient color seperation. The heat on an infrared focal plane cause the deflection of the infrared heat sensitive film which has a metal reflection surface and a decalescence surface. The metal reflection surface of the infrared heat sensitive film with a blaze grating structure seperates the white light illuminated on it into the color light. At this time, if a CCD image record unit is placed at a particular diffraction angle, different colors corresponding to different diffraction angles can be recorded and a color infrared image can be formed. It is estimated by experiment that this imaging has a NETD of 39mK.
出处
《红外》
CAS
2007年第10期6-13,共8页
Infrared
关键词
彩色红外
光学读出热成像
闪耀光栅
MEMS
color IR
optic readable thermal imaging
blaze grating
microelectromechanical system （MEMS）
