进入九十年代后,由于数字技术的突破性进展,许多家用电器和日用品纷纷放弃传统设计而采用数字技术,其中数字式相机就是利用数字技术开发的一种新产品。所谓数字式相机,其最大的特点就是不用胶卷。通过镜头拍摄的画像在一个电子部件上转为数字信号,并输进相机的记忆装置。这个电子部件的性能受画面粒子多少的 Since the nineties, due to the breakthrough of digital technology, many household appliances and daily necessities have abandoned the traditional design and adopted digital technology. Among them, the digital camera is a new product developed by using digital technology. The so-called digital camera, its biggest feature is not film. The portrait taken through the lens is converted to a digital signal on an electronic component and fed into the camera’s memory device. The performance of this electronic component by the number of screen particles