投影物镜,projection lens
1)projection lens投影物镜
1.Based on étendue, relative illumination ofprojection lens is analyzed.基于非成像光学的啨ｔｅｎｄｕｅ量对液晶投影显示照明系统和投影物镜进行匹配 ,对液晶投影物镜的相对照度进行分析 ,根据啨ｔｅｎｄｕｅ量计算照明系统液晶板照明面的发光强度分布 ,与根据朗伯体服从余弦分布的计算相对照度的算法进行比较 ,并对相对照度的Rimmer算法进行修正 ,分析和实验表明 ,修正算法得到的投影物镜相对照度计算更符合实际情况 ,对于投影物镜确定渐晕系数、校正像差有
2.In order to meet the demand of coma measurement accuracy of lithographic toolprojection lens,a novel method for measuring coma based on fine overlay error metrology marks is proposed.为了满足光刻机投影物镜彗差测量精度的要求,提出一种基于套刻误差测试标记的彗差检测技术,分析了彗差对套刻误差测试标记空间像的影响,详细叙述了该技术的测量原理,并利用PROLITH光刻仿真软件对不同数值孔径与部分相干因子设置下套刻误差相对于彗差的灵敏度系数进行了仿真实验。
3.In high numerical aperture and low technic factor lithography process,degradation of the image quality because of the coma aberration in theprojection lens has become a serious problem.在高数值孔径、低工艺因子的光刻技术中,投影物镜彗差对光刻质量的影响变得越来越突出,因而需要一种快速、高精度的彗差原位测量技术。
英文短句/例句
1.Design of Wide Angle Projection Lenses for LCOS Rear-Projection TV Sets with a Large Screen and Compact Structure;LCOS大屏幕薄型背投电视广角投影物镜的设计
2.The Study of PYOE Optical Technology Development Status and Design of Projection Lens;平原光电公司光学技术发展现状研究与投影物镜设计
3.Schlieren projection lens施利仑投影透镜，纹影摄影投影透镜
4.An image of the object is projected by the object lens on to the photocathode of an image converting tube.物象通过物镜投影在变像管的光阴极上。
5.An image of the object is projected by the objective lens on to the photocathode of an image convert tube.物象通过物镜投影在变象管的光阴极上。
6.Designment and testing method of additional lens in multimedia projector多媒体投影仪中附加物镜的设计和测试
7.Two-mirror system design study of reduced projection optics for EUV Lithography;极紫外投影光刻两镜微缩投影系统的光学设计
8.object lens of large relative aperture大相对孔径(摄影)物镜
9.double-optical projection stereoplotter双镜光学投影立体绘图仪
10.Adjust the focus ring on the projection lens调节投影镜头上的聚焦环
11.If the screen is so far away from the eyepiece that the camera can be placed between.如果投影屏距目镜很远，照相机可放在两者之间。
12.Application of TIR lens optimization design in LED micro-projectorTIR透镜优化设计在LED微投影显示系统中的应用
13.Shape from Shading for Specular Surfaces under Perspective Projection透视投影下的镜面反射表面形状恢复新算法
14.The lens or lens system in a microscope or other optical instrument that first receives light rays from the object and forms the image.物镜首先从物体上接收光线并形成影像的显微镜或其它光学仪器中的透镜或透镜系统
15.lens system focuses image on a photosensitive mosaic that is scanned by an electron beam.把影像投到电子束扫描的光敏镶嵌屏幕上的透镜系统。
16.The scenes range from a big-budget Hollywood war film to hard-core pornography.播出的镜头包括高投入的好莱坞战争片也有赤裸的色情电影。
17.Research on Free Three-dimensional Display System Based on DMD Projection Technology and Cylindrical Lens基于DMD投影技术及柱状透镜的自由立体显示系统的研究
18.Most macro lenses can produce an image which is half life size on the film.多数微距镜头可以产生实物一半大小的影像。
相关短句/例句
projection optics投影物镜
1.To study the two-mirror reducedprojection optics for Extreme Ultraviolet Lithography (EUVL), Schwarzschild design form and flat field design form were investigated.极紫外投影光刻(EUVL)两镜微缩投影物镜通常采用Schwarzschild结构和平场结构。
3)Schwarzschild opticsSchwarzschild投影物镜
4)overhead projector lens投影器物镜
5)zoom projection lens变焦投影物镜
1.Design ofzoom projection lens for the light engine of LCoS rear-projection TV;LCoS背投光学引擎中变焦投影物镜设计
6)photolithographic lenses投影光刻物镜
1.Optical assembly and rectification of sub micro (i line and g line)photolithographic lenses;亚微米(i线和g线)投影光刻物镜的光学装校
延伸阅读
滤波反投影或卷积反投影滤波反投影或卷积反投影影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中，无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution)，即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正，然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单，速度快，所得图像逼真、清晰。
