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    • 7. 发明专利
    • Mechanism for projecting microfilm
    • 投影微型机构
    • JPS6177831A
    • 1986-04-21
    • JP20016984
    • 1984-09-25
    • Fuji Photo Film Co Ltd
    • KAIDA SHINICHI
    • G03B21/11G03B21/46
    • PURPOSE: To make possible the easy selection of the projection of a single frame and projection of the entire part or part and the projection meeting purposes by changing the combination or disposition of a light source, fiche film and lens.
      CONSTITUTION: The light from a light source 40 is irradiated through a condenser lens 41 on a mirror 42 and in the case of projecting the image of one frame of the fiche film F onto a screen 46, the film F is placed in the position A, then the light from the mirror 42 irradiates the image of one frame of the film F and the light transmitted therethrough is imaged through a lens system 43 to the screen 46 by mirrors 44 and 45. The film F is moved in the direction U by a moving mechanism and is brought to the position B in the case of projecting the entire image of the film F. Then the part of the film F is irradiated by the light from the mirror 45 and the light transmitted therethrough is directly projected to the screen 46 and therefore the content of the entire part of the film F is visible on the screen 46. The film can be returned from the position A from this state simply by moving the same in the direction D by the moving mechanism.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过改变光源,胶片和镜头的组合或配置,可以轻松选择单个框架的投影和整个零件或部件的投影以及投影会议目的。 结构:来自光源40的光通过镜42上的聚光透镜41照射,并且在将胶片F的一帧的图像投影到屏幕46上的情况下,将胶片F放置在位置A 然后来自反射镜42的光照射胶片F的一帧的图像,透过透镜的光通过镜44和45通过透镜系统43成像到屏幕46.胶片F沿方向U移动 移动机构,并且在投影胶片F的整个图像的情况下被带到位置B.然后,膜F的一部分被来自反射镜45的光照射,并且透过其的光直接投射到屏幕 46,因此胶片F的整个部分的内容在屏幕46上是可见的。通过移动机构,胶片可以从该状态简单地通过使其沿方向D移动而从位置A返回。