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    • 1. 发明授权
    • Image projecting apparatus with margin detect means
    • 具有边缘检测手段的图像投影装置
    • US4903073A
    • 1990-02-20
    • US346285
    • 1989-05-01
    • Takao SaijoMasafumi FujitaTakanori Saitoh
    • Takao SaijoMasafumi FujitaTakanori Saitoh
    • G03B21/11G06K17/00
    • G03B21/113G06K17/0019
    • An image projecting apparatus using a microfilm strip carrying a series of image frames which have a margin area between adjacent two thereof, comprising a viewing screen for displaying an image reproduced from the microfilm strip, reels and motors for driving the microfilm strip to travel along a predetermined path, an optical system for irradiating the microfilm strip with a beam of light, the beam of light being transmitted as an information-carrying beam of light carrying image information detected from the microfilm strip, a projection lens for magnifying the information-carrying light beam and projecting the magnified beam of light onto the viewing screen, a photoelectric margin sensor responsive to at least a portion of the information-carrying light beam for producing an electric signal variable with the quantity of light incident on the photoelectric margin sensor, the photoelectric margin sensor being located off the location at which the information-carrying light beam is to be focussed by the projection lens, and a control circuit responsive to the electric signal from the photoelectric margin sensor for detecting the margin area intervening between any adjacent two of the image frames of the microfilm strip and thereby controlling the reels and motors.
    • 一种图像投影装置,其使用携带一系列图像帧的微缩胶片带,所述图像帧在其相邻的两个之间具有边缘区域,包括用于显示从微缩胶片条再现的图像的观察屏幕,用于驱动微缩胶片条沿着 预定路径,用于用光束照射微缩胶片条的光学系统,所述光束作为携带从微缩胶片条检测到的图像信息的携带信息的光束传输;投影透镜,用于放大信息携带光 光束并将放大的光束投射到观察屏幕上,响应于至少一部分信息传送光束的光电边界传感器,用于产生随着入射在光电边缘传感器上的光量而变化的电信号,光电 边缘传感器位于信息携带光束所在的位置 由投影透镜聚焦,以及响应于来自光电边界传感器的电信号的控制电路,用于检测介于微缩胶片条的任何相邻两个图像帧之间的边缘区域,从而控制卷轴和电动机。
    • 4. 发明授权
    • Microfilm camera
    • 微胶片相机
    • US4803505A
    • 1989-02-07
    • US091987
    • 1987-09-01
    • Takao SaijoMasafumi Fujita
    • Takao SaijoMasafumi Fujita
    • G03B27/465G03B27/52G03B29/00
    • G03B27/465G03B27/521
    • A camera comprising a document table for placing a document thereon, a photographing assembly for photographing the document on the table on a film on a reduced scale, and a marking assembly for photographing on the film a size mark corresponding to the size of the photographed image. When documents of different sizes are photographed on the same reduced scale by the photographing assembly, the corresponding size mark provided by the marking assembly is also photographed on the film in the vicinity of each film image. Such size marks recorded serve as image size data when the film images are thereafter copied by a reader-printer or printer on an enlarged scale, and are useful for automatically selecting copy paper of suitable size.
    • 一种照相机,包括用于在其上放置文件的文件台,用于以缩小的尺度在胶片上以桌面上的文件拍摄的拍摄组件以及用于在胶片上拍摄对应于拍摄图像的尺寸的尺寸标记的标记组件 。 当通过拍摄组件以相同的缩放比例拍摄不同尺寸的文档时,也在每个胶片图像附近的胶片上拍摄由标记组件提供的相应的尺寸标记。 记录的这种尺寸标记作为图像尺寸数据,此后胶片图像被放大的读取器 - 打印机或打印机复制,并且可用于自动选择适当尺寸的复印纸。