绵阳托福阅读背景知识:针孔摄像机

作者:朗阁小编老师来源:朗阁教育时间:2021-10-12 22:57:05

摘要:托福阅读背景知识:针孔摄像机

在2014年5月17日的托福阅读考試中有那样一道题:针孔摄像机。对于这道托福考题,新航道雅思张俊聪教师来为我们推广一下有关针孔摄像机的情况专业知识,那样有利于学生在面临这类题型时便捷做答,新航道雅思张俊聪教师强调:TPO中,与文中在主题与构造都十分类似的内容是TPO22的The Birth of Photography.本文的第二段第二句*及了camera obscura。   托福阅读考试真题重现:   版本一:第二篇是讲拍摄底盒技术obscura,一个叫hockney的美国当今画家科学研究了400个画家来证实欧洲中世纪的人用底盒来輔助画画,以维米尔为事例。讲了他的画怎样被觉得是应用了该技术,后边*及了一些画家都采用过,还归纳了一幅画中采用了该技术的特点,*终讲了这一技术并无法扼杀画家自身的整体实力。   版本二:一开始讲了照相机成的好像颠倒的(文章标题边上图 相近小孔成像)。后边根据试验研究发现用浴室镜子能够更改颠倒的像。然后讲了对设计师的危害,实际举了一个画家的事例,说他的画很有可能便是受了照相机的危害。可是因为沒有对于此事的纪录,创作者感觉大约是这一画家不愿让各位了解他受了照相机的危害。然后又说到许多画家也有可能遭受了照相机的危害。*终一段说即便照相机发生 可是画家或是要有自已在画画上的功底 并把那些与摄像头的特性融合起來。   版本三: 有一些画家没节操,用小孔成像技术画画还不许他人了解,随后他举了个案例说有一个西班牙的画家,叫VIE甚么的(达.芬奇?),画画不许别人看都不收弟子,很有可能便是因为它运用了这一技术。但是创作者之后又说,实际上有时这一技术没啥用,由于*终还得看本人。   语汇:camera obscura n.针孔摄像机   分析:文中紧紧围绕针孔摄像机的发现针对艺术油画的关键危害主题为进行论述。文章内容从三个视角进入,讨论针孔摄像机针对艺术油画的危害,这三个视角刚好是*终一题文章内容汇总题的三个回答。每一个见解单独成段且*段有清楚的主题句的可能十分大。TPO中,与文中在主题与构造都十分类似的内容是TPO22的The Birth of Photography.本文的第二段第二句*及了camera obscura。   托福阅读有关环境:   Camera obscura   This article is about an optical device. For other uses, see Camera obscura (disambiguation).   A drawing of a camera obscura   Camerae obscurae forDaguerreotype called "Grand Photographe" produced by Charles Chevalier (Musée des Arts et Métiers)   A projection of an image of the New Royal Palace in Prague Castlecreated with a camera obscura   The camera obscura (Latin; camera for "vaulted chamber/room", obscura for "dark", together "darkened chamber/room"; plural: camera obscuras or camerae obscurae) is an optical device that projects an image of its surroundings on a screen. It is used in drawing and for entertainment, and was one of the inventions that led to photography and the camera. The device consists of a box or room with a hole in one side. Light from an external scene passes through the hole and strikes a surface inside, where it is reproduced, rotated 180 degrees (thus upside-down), but with color and perspective preserved. The image can be projected onto paper, and can then be traced to produce a highly accurate representation.The largest camera obscura in the world is on Constitution Hill in Aberystwyth, Wales.[1]   Using mirrors, as in the 18th-century overhead version (illustrated in the History section below), it is possible to project a right-side-up image. Another more portable type is a box with an angled mirror projecting onto tracing paper placed on the glass top, the image being upright as viewed from the back.   As the pinhole is made smaller, the image gets sharper, but the projected image becomes dimmer. With too small a pinhole, however, the sharpness worsens, due to diffraction. Some practical camera obscuras use a lens rather than a pinhole because it allows a largeraperture, giving a usable brightness while maintaining focus. (See pinhole camera for construction information.)

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