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    • 15. 发明授权
    • Printed circuit unit for a camera
    • 相机的印刷电路单元
    • US4134654A
    • 1979-01-16
    • US746297
    • 1976-12-01
    • Hiroyashu MurakamiTadashi ItoFumio ItoNobuaki SakuradaMasaharu KawamuraNobuhiko Shinoda
    • Hiroyashu MurakamiTadashi ItoFumio ItoNobuaki SakuradaMasaharu KawamuraNobuhiko Shinoda
    • G03B17/18G03B7/091G03B17/20H05K1/18G03B7/00
    • G03B17/20G03B7/00G03B7/097G03B7/09976G03B2217/002H05K1/18
    • A printed circuit unit for a camera, comprisingA photo-sensing means to measure brightness of an object,An integrated exposure operation circuit means to conduct exposure operation based on the photo-sensing output from said photo-sensing means and other exposure factors for determining a proper exposure value (an exposure time value or an exposure aperture value),An electro-optical display means to digitally display in an optical manner the exposure value (the exposure time value and/or the exposure aperture value) within a field of view finder of the camera, andA flexible printed circuit sheet having electrically conductive paths to electrically connect said photo-sensing means and said display means to said exposure operation circuit means,And in said printed circuit unit, said photo-sensing means, said display means and said integrated exposure operation circuit means are mounted on said flexible printed circuit sheet, and an opening is formed at a part of said printed circuit sheet to allow the image light beam from a photo-taking lens system to impinge on a film,And said printed circuit unit is so made that said photo-sensing means and said display means are so placed as closely facing a part of the optical assembly of the camera, and the opening at said printed circuit sheet matches with a photographing picture frame of camera, so that it is mounted in a very limited space within said camera.
    • 一种用于相机的印刷电路单元,包括用于测量对象的亮度的照相感测装置,综合曝光操作电路,用于根据照相感光装置的照相感光输出和用于确定的其他曝光因子进行曝光操作 正确的曝光值(曝光时间值或曝光光圈值),电光显示器意味着在光学显示器中数字显示在视场中的曝光值(曝光时间值和/或曝光光圈值) 摄像机的检测器和具有电导线的柔性印刷电路板,以电连接照相感光装置和显示装置以确定曝光操作电路,并且在所述印刷电路单元中,所述照相感光装置,所述显示装置 并且将一体化接触操作电路装入安装在柔性印刷电路板上,并在打印电路的一部分形成开放 要从摄影镜头系统允许图像光束进入电影,并且所示的印刷电路单元是这样做的,即所述照相感应装置和所示的显示装置被设置为紧贴在光学组件的一部分 相机的照相机和相机印刷电路板上的打开相机,因此它在相机中被安装在非常有限的空间内。