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shu zi zhao xiang ji
Author(s): 
Pages: 1
Year: Issue:  4
Journal: Electric Age

Keyword:  数字照相机普通相机计算机清晰度半导体存储器电荷耦合器件图像存储器模拟电信号照相机镜头存储器卡;
Abstract: <正> 近年来,一种不用胶片的新型数字照相机已经悄然进入专业摄影领域。数字照相机的感光元件不是胶片,而是电荷耦合器件(CCD)。当通过照相机镜头形成的影像映到CCD上时,CCD将影像转换成模拟电信号,再通过A/D转换器将模拟图像信号转换成数码信号,存储在数字照相机的PC卡(图像存储器)上。PC卡内包含有半导体存储器和控制器等电路,它的作用相当于普通相机的胶卷。PC卡的尺寸
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