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1.什么是缩微摄影技术?缩微摄影技术是利用摄影的方法,把档案文献等原件缩小几倍、几十倍甚至几百倍记录在感光材料上,经过显影加工制出缩微品。缩微品的使用,必须借助光学设备加以放大还原进行阅读、复印。因此,缩微摄影技术包括:原件的编排、拍摄、显影加工、拷贝、阅读、复印、保存以及远距离传递等全部技术手段和技术过程。不仅包括普通缩微摄影技术,也包括超缩微摄影技术、计算机输出或输入缩微胶片技术等在内的全部技术系列。2、简述缩微摄影技术的特点。缩微摄影技术的特点是:存储密度大,可将原件的影像缩小1/7～1/48或者1/90～1/250记录在胶片上。记录准确,质量好,对不同形状、内容、格式、字体以及图形等原件,都能真实地记录下来,影像的解像力高、清晰度好。记录速度快,任何原件的影像都可在曝光的一瞬间被记录在缩微胶片上。轮转式摄影机每分钟可拍摄600～700张原件。规格统一,对不同幅面、内容的原件均可制成规格统一的缩微品。3.简述缩微摄影技术的作用。缩微摄影技术的作用是:缩小保存空间,用缩微摄影的方法将原件的影像缩小拍摄在缩微胶片上保存,可节省85～98％的保存空间。保护原件,第一,缩微品可拷贝多份,分地保存;第二,以缩微品形式代替原件向读者提供使用,可将原件妥善地保存起?
1. What is microfilming technology? Micrographics technology is the use of photography methods, the original archives and other documents reduced several times, several times or even hundreds of times recorded in the photographic materials, after processing to produce microforms. The use of microforms, you must use optical equipment to enlarge and restore for reading, copying. Therefore, the micro-photography technology includes: all the technical means and technical process of the original arrangement, shooting, processing, copying, reading, copying, saving and long-distance transmission. This includes not only general photolithography but also all technical series including microfilming, computer output or microfilming. 2, a brief description of the characteristics of micro-photography technology. Micrographic technology is characterized by: storage density, the original image can be reduced 1/7 ~ 1/48 or 1/90 ~ 1/250 recorded on the film. Accurate recording, good quality, of different shapes, content, formatting, fonts and graphics and other original, can be truly recorded, the resolution of the image high, good clarity. Recording speed, any original image can be recorded in the moment of exposure on the microfilm. Rotary cameras can shoot 600 ~ 700 original copies per minute. Unified specifications, the different formats, the original content can be made of uniform specifications microforms. 3. Briefly describe the role of microfilm technology. The function of the micro-photography technology is to reduce the storage space and use the miniature photography method to reduce the original image to save on the microfilm, which can save 85-98% of the storage space. First, the microform can be copied in multiple copies and stored separately. Second, the original can be saved in the form of a microfilm instead of the original.