Focus: plane of focus; focal length; and depth of field.
焦距：焦点平面，焦距和景深。
The field of view can be limited by inserting a stop in the focal plane of microscope.
可以在显微镜的焦平面上加装一光阑，从而限制视区。
A staring imaging laser detecting and warning system is formed by using 4-channel uncooled infrared focal plane detectors, large field optical system, narrow band filters and signal processing system.
利用四路红外非制冷焦平面探测器、大视场光学系统、窄带滤光片和信号处理系统，构成了凝视成像激光探测与告警系统。
The study of the infrared focal plane array based on the narrow gap semiconductors HgCdTe is a hot topic in the field of advanced infrared optoelectronics.
窄禁带半导体碲镉汞红外焦平面列阵研究是当代红外光电子技术的前沿。
A random field target detection technology for infrared focal plane array (FPA) imaging is also proposed.
对焦平面纤外图像提出了一种概率场目标检测技术。
With the development of infrared focal plane array technology, there are higher requirements in the field of parameters testing and performance evaluation of infrared focal plane array detector.
本文围绕红外焦平面阵列探测器的性能参数测试方法开展研究工作。
The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.
象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.
象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
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