A kind of diffraction element modulating phase information by LC space light modulator to get a zoom Fresnel lens, as well as the using of said element to optical imaging system, is introduced.
本文介绍一种以液晶空间光调制器作为调制位相信息的衍射元件，获得可变焦长的菲涅耳透镜，以及该元件在光学成像系统中的应用。
The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.
在本系统中，选用LED光源和畸变小的镜头作为视觉检测系统的照明光源和成像镜头，为精密测量提供了高质量的图像。
Once you choose a lens whose focal length is closest to the focal length required by your imaging system, you need to adjust the working distance to get object under inspection in focus.
一旦你选择一个镜头其焦距是最接近于你成像系统所需之焦距，你需要调较工作距离去获取观察目标物的焦点。
This paper analyses the concept of OTF in sampled imaging system, discusses the problem incoherently coupled with OTF of lens and describes a new method for measuring MTF of CCD.
本文分析了抽样成像系统的OTF，并讨论了与透镜otf的非相干耦合问题，同时提出了一种新的测量CCD的MTF的方法。
Main task of this dissertation is designing a multi-beam lens antenna to both improve the resolution and reduce the imaging time of the passive millimeter-wave imaging system.
本文的主要任务是针对提高毫米波无源成像系统的分辨率和减小成像时间而设计一个多波束透镜天线。
In this paper a system using CMOS imaging technique is proposed to evaluate quickly the imaging quality of lens on the basis of Fourier Optics.
本论文以傅立叶光学为依据，详细讨论了一种利用CMOS成像对镜头成像质量进行快速评价的系统。
The adverse projection measuring method reverse the position of object and image in the imaging system of lens, it overcome back focus length and resolution power limitation.
逆投影法颠倒镜头成像系统物和像的位置，克服了手机镜头后焦、像素等的限制。
The imaging system consists of a color video camera, an observation window and a turning mirror, a wide-angle collector and collimating lens, a video capture card as well as a portable computer.
该成像系统由彩色摄像机、观察窗和转向镜、广角收集和准直透镜组、采集卡和计算机组成。
This article introduced the imaging principle of the thin lens and the refraction system of eyes. This article also analyzed the Simulation and Remedy of the Myopic eye.
介绍薄透镜成像原理和眼屈光系统。分析近视眼的模拟与矫正。
With matrix conversion of geometry optics as a basis, simulation and modeling for complex multi-lens imaging optical system for four-quad splitting are carried out through light ray trace.
以几何光学的矩阵变换为基础，通过光线追迹的方法，对四象限分光的多透镜成像复杂光学系统进行仿真建模。
In an imaging system, we build a camera having a lens and a photosensitive device, to mimic how the world is perceived by vision.
在成像系统当中，我们用镜头和光敏器件组成照相机来模拟人类视觉观察世界的方式。
In an imaging system we build a camera having a lens and a photosensitive device to mimic how the world is perceived by vision.
在成像体系当中，咱们用镜头跟光敏器件组成照相机来模仿仁攀类视发觉看世界的方法。
Meanwhile, according to the experimental results, the resolution of the imaging system is decided by the size of unit on the DMD when the aperture of lens is big enough.
且实验表明在透镜口径足够大时，成像系统的分辨率由DMD面元大小决定。
On the basis of thin-lens focal length measurement experiment, the imaging law of refraction-reflection system was further studied.
在薄透镜焦距测定实验的基础上，进一步讨论了折射反射系统成像的规律。
Since the imaging resolution of SR volume holographic lens is better than that of PR one, it is the better choice to adopt a volume holographic imaging system with SR lens for microstructure imaging.
球面参考光体全息透镜对于微观物体成像的分辨率特性要优于平面参考光体全息透镜，更适用于微观成像系统。
The system consists of imaging systems, which includes laser, mirror and prism, image acquisition system, which includes the lens, cameras and image acquisition card, and the mechanical system.
该系统由包括激光器、反射镜和三棱镜在内的成像系统、包括镜头、相机和采集卡在内的图像采集系统和机械系统组成。
The camera lens diaphragm is an important component in a noncontact optical imaging system and has a crucial influence on the images registered on the CCD camera.
镜头光阑是非接触式光学成像系统中的一个重要部件，并对CCD相机上采集到的图像具有重大影响。
To improve the imaging quality of lens used in the helmet-mounted LLL night-vision system and make lens small in size, light in weight, the lens with the high order aspheric surface is designed.
为提高头盔式微光夜视系统的成像质量，并满足整个夜视系统体积小、重量轻的指标要求，提出了非球面物镜系统的设计。
Volume holographic grating, used as a volume holographic imaging lens in the imaging system, is recorded via illuminating the recording medium with a spherical signal beam and a plane reference beam.
体全息光栅由球面信号光波和平面参考光波干涉记录，并以原信号光作为探测光波进行成像。
The imaging system formed by an annular left-handed material (LHM) lens as well as the evanescent waves in the lens are simulated numerically with a finite-difference time-domain (FDTD) method.
利用时域有限差分法模拟了左手圆环形透镜的成像和透镜中的倏逝波。
The imaging system formed by an annular left-handed material (LHM) lens as well as the evanescent waves in the lens are simulated numerically with a finite-difference time-domain (FDTD) method.
利用时域有限差分法模拟了左手圆环形透镜的成像和透镜中的倏逝波。
应用推荐