离焦量 meaning in English
defocusing amount
Examples
- We simulate the practicality system to experimentalize , obtain the relation between defocus and focus error signal , make it a condition that na = 0 . 625 and n = 1 . 7979
并模拟实际系统，实验得出当临界角棱镜的折射率n = 1 . 7979 、物镜的数值孔径na = 0 . 625时，离焦量与离焦误差信号的关系曲线。 - Firstly , the influence of reaction time between laser and material on the roughness is studied by changing the speed of laser beam . secondaly , the optimized parameters are found by adjusting laser power and defocus
一方面,通过改变激光加工头的运动速度,考察激光与芯片材料的相互作用时间对侧壁表面粗糙度的影响;另一方面,调整激光的功率和离焦量,找出最优化参数。 - Digital binoculars are new products and so there are no data about the test of the resolution and field of view matching . in order to measure the resolution of digital binoculars , the method based on the combination of collimator and resolution chart is proposed
为了检验数码望远镜的分辨率,提出了采用平行光管和鉴别率板的组合来测量的方式,并对鉴别率板的离焦量、平行光管焦距与鉴别率板的匹配进行了理论推导。 - The experiment results show that there are optimal defocus distance and exposure for the given system and recording material , and to obtain the best snr different reference - to - object beam ratios are also needed for black - white digital images of different space frequencies
实验结果表明，对于给定的系统及记录介质存在一定的最佳离焦量和曝光量，而对于不同空间频率的黑白二值条纹图像还需要采用不同参?物光比以最终获得最佳的信噪比。 - Firstly , in order to meet the requirement in application , the influencing factors for defocus measurement with one - way defocused detector are analyzed and the influencing regularity of detector position are discussed , after that the relationship between defocus errors and output signals is given too . according to the optimization results , the experimental device is established for this paper
首先,本文从工程应用角度出发,通过分析单向离焦检测的误差影响因素,讨论了探测器位置误差对测量的影响规律,给出了离焦量与测量信号的输出关系,优化设计了检测光学系统,搭建了实验装置。