entrance pupil
英 [ˈentrəns ˈpjuːpl]
美 [ˈentrəns ˈpjuːpl]
入射光瞳；前透光孔
双语例句
- Study on drift entrance pupil in laser scanning system
激光多面体旋转扫描测试系统入瞳漂移的研究 - In the condition of different angles of viewfield, the locations of entrance pupil and diaphragm are discussed, when the fish-eye lens is designed. The requirements of f'_1, D, l_p and h_p are also given.
本文介绍了在设计鱼眼镜头时，在不同的视场角情况下，入瞳和光阑的位置，以及对f′1、D、lp和hp的要求。 - In the end, it expounds the successive approach method to confirm the boundary of abaxial beams, and how to realize global optimization of the aperture stop ′ s position using the entrance pupil ′ s distance variable.
提出充分利用像差渐晕改善像面照度均匀性的方法；论述标定轴外光束边界的逐次渐近过程和运用入瞳距离变量实现孔径光阑位置全域优化的技术。 - The conclusion can be used in practice, including how to design the rotated mirror according to the requirement of measuring accuracy, to select the angle of incidence and to deal with the influence of drift entrance pupil in the design of f-θ lens.
实际应用中如何根据精度要求设计旋转反射镜、如何选择入射角、f－θ物镜设计中如何考虑入瞳漂移的影响均可利用这一结论。 - Also is calculated the ratio T of the energy passing through the system onto the exit window, to the total energy radiated from a plane target into the entrance pupil.
计算了面状目标经入射光瞳的光辐射通过系统后，进到出射窗的能量占总能量的百分比T。对下述一系列不同的情况具体推导了公式：圆环和长方环形的衍射瞳孔； - The least power detected at the entrance pupil is 10-12 W/ cm 2, spectral resolution is 2% and the measuring speed is 10 spectral lines per second.
入瞳的最小可探测率为10－12W／cm2，光谱分辨率为2%，测量速度为10条谱线／s。 - Children can be divided into pre-schoolchildren and school-age children according to different entrance time, and pupil belongs to school-age children.
根据儿童的入学前后，儿童可以分为学前儿童和学龄儿童，小学生则属于学龄儿童这个群体。