查询词典 Lens

The focal properties of varifocal Fresnel lens was studied in experimental, experimental results showed that the deformation of surface of LCoS will lead to diffusion of the focal of Fresnel lens, one correction method was mentioned.

然后利用已经制作的LCoS相位空间光调制器，实现了可编程的变焦菲涅尔透镜，通过实验研究了变焦菲涅尔透镜的聚焦特性，发现LCoS器件的表面弯曲会导致聚焦焦点的弥散并设计了校正的方案。

The all-purpose 2.8- to 12-millimeter IR varifocal lens provides the proper field of view for most surveillance applications. The 2.9- to 8.2-millimeter IR varifocal lens features aspherical optics to provide a fast F1.0 maximum aperture for best low-light performance.

多功能的2.8至12mm红外变焦镜头为大多数监视应用提供了适当的视场角。2.9至8.2mm红外变焦镜头以非球面光学为特色，为最佳低光性能提供了高速的F1.0最大光圈。

3Rd, this product is suitable in the bathroom on the glass lens, may achieve in the bathroom the mist steamings, glass lens actually clear as in the beginning effect.

本产品适用于浴室内玻璃镜上，可达到浴室内雾气腾腾，玻璃镜却清晰如初的效果。

At 24 h, Ang1 was expressed mainly in the lens, optic cup, mesencephalon, ventral part of hindbrain, and myotomes in the somites, while zfTie2 was mainly expressed in intersomitic vessels including dorsal aorta and axial veins, and sprouting vessels from the dorsal aorta in the trunk. VEGF was expressed mainly in the lens, optic cup, mesencephalon and myotomes in the somites, while zfFlk1 was mainly expressed in intersomitic vessels including dorsal aorta and axial veins, and sprouting vessels from the dorsal aorta in the trunk.

结果从受精卵胚胎发育第12小时可见血管内皮细胞生长因子和血管发生素1及其相应受体flk1和Tie2的表达；在受精卵胚胎发育的第16小时，血管内皮细胞生长因子和血管发生素1主要在头部和尾部胚芽表达；第24小时在眼球、视窝、中脑、后脑的腹前侧和肌节中表达，Tie2和Flk1主要在肌间背部动脉血管、躯干新生血管芽和轴向静脉中表达。

In the third chapter "Utterly exhausted", analysed expressly those long-lens and jump-cut; In the fourthly chapter "alpha city",analysed expressly the aesthetic purpose of black and white and simulacrum; In the fifthly chapter "Chinese girl",put emphases on the color and component line;In the sixth chapter "madman Pierrot",analysed expressly color and dissymmetry composition of a picture through psychology; In the seventh chapter "carbinier",analysed lens language from film semeiology; it researched Chinese film in eighth chapter,explained detailedly a successful Chinese films;"Yellow land",analysed presentation format of The sign "China".point out our Chinese film various problems in inditing concept as well as film system.

第八章是对中国电影的研究，提出戈达尔对我们中国电影一些有益的启示，分析了一部成功的中国影片《黄土地》，从电影符号学的角度去分析&中国&这个符号的呈现方式。还指出了中国电影目前存在的一些问题，有电影创作观念上以及中国电影体制等方面的原因。

Eisenstein their general significance of the findings, said: Through the two unrelated scenes clips tied up, will not be a simple lens plus another lens, and, while such a creation.

爱森斯坦对他们这个发现的意义概括说：通过剪辑把两个不相干的镜头并列起来，不会是一个镜头加另一个镜头简单的和，而像是一个创造。

Eisenstein their general significance of the findings, said: Through the two unrelated scenes clips tied up and not be a simple lens plus another lens, and, while such a creation.

爱森斯坦对他们这个发现的意义概括说：通过剪辑把两个不相干的镜头并列起来，不会是一个镜头加另一个镜头简单的和，而像是一个创造。

Sanyo Xacti VPC-HD1 features 720p HD video scanning (1280 x 760 progressive), 16:9 widescreen format (HD-SHQ / HD-HQ modes), 5.1 megapixel digital still photos, advanced MPEG-4 compression technology, ability to capture still and video images simultaneously, super-fast 9Mbs frame rate, 2.2 inch OLED (Organic Light-Emitting Diode) display, 10x optical zoom lens plus 10x digital zoom lens, ability to record over 41 minutes of High-Definition video on a 2 GB SD Card, built-in digital image stabilization, super fast start-up, wind noise reduction, built-in 4-mode flash, AAC-LC stereo recording, 22 adjustable manual focus settings, super macro shooting as low as 1cm, talking navigation guide for first-time users, PictBridge compatible and has USB 2.0 and S-Video output.

三洋HD1功能支持720p高清晰度视频扫描（ 1280 × 760渐进）， 16：9宽屏幕格式（的HD - SHQ /高清总部模式）， 510万像素数码照片，先进的MPEG - 4压缩技术，能够捕捉仍和视频图像的同时，超高速9Mbs帧速率， 2.2英寸的OLED显示屏， 10倍光学变焦镜头加上10倍数字变焦镜头，能够记录41分钟的高清晰度视频的2 GB的统计处卡，内置的数字图像稳定，超快速启动，风能减少噪音，内置的4模式闪光灯，支持AAC -立法会立体声录音， 22个可调手动对焦设置，超微距拍摄低1厘米，说话的导航指南第一次使用者，兼容PictBridge和USB 2.0和S - Video输出。

Its paper thin depth of field, combined with the quality of Canon L lens, makes it a very attractive lens for portrait and reportage photographers: but how does it behave in practice?

其纸张薄深入实地，镜头结合佳能L的质量，使其成为一个非常有吸引力和报告文学摄影师的镜头，适合人像：但它是如何在实践中的表现？

The 135mm DC is Nikon's best hand-held portrait lens ever, as well as a killer-sharp 135mm lens for everything.

该镜头135mm DC是尼康最好的手持拍摄的镜头不断，以及杀手锋利的一切镜头135mm镜头。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切