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    • 69. 发明授权
    • Image projector and image forming apparatus for image projection
    • 图像投影仪和图像投影用图像形成装置
    • US5414481A
    • 1995-05-09
    • US210296
    • 1994-03-18
    • Tetsuya FujiokaHiroshi Takahashi
    • Tetsuya FujiokaHiroshi Takahashi
    • G03B21/132G03B21/28
    • G03B21/132Y10S353/03
    • In an image projector and an image forming apparatus for image projection, after a document has been laid on a glass platen, a voltage is applied from a power source to transparent electrodes respectively formed on the upper and lower surfaces of a combined polymer and liquid crystal film. As a scanner scans the document, the resulting reflection from the document scans the film. As a result, an image matching the document in tonality is formed in the film in the form of a transmittance distribution and in the original scale. After the document has been removed from the glass platen, a lamp included in an illumination unit is turned on to project the image held in the film onto a screen in an enlarged scale via mirrors and a lens which are included in a projection unit.
    • 在用于图像投影的图像投影仪和图像形成装置中,在将文件放置在玻璃压板上之后,将电压施加到分别形成在聚合物和液晶的组合的上表面和下表面上的透明电极 电影。 当扫描仪扫描文档时,文档产生的反射会扫描电影。 结果,以透明度分布的形式,以原始尺度在胶片中形成以色调与文档匹配的图像。 在从玻璃压板移除文件之后,打开包含在照明单元中的灯,将保持在胶片中的图像以放大的尺寸通过投影单元中包括的镜子和透镜放大到屏幕上。