数码相机大聚焦

• 出 处: 计算机与网络
• 发表日期: 2000年20期
• 关键词: 相机 数码 光线强度 数字文件 电子介质 光电耦合器 感光元件 记录载体 光学镜头 存储器

数码相机是一种光、电、机一体化的产物。它是以电子存储设备作为摄像记录载体。通过光学镜头在光圈和快门的控制下。实现在电子存储设备上的“曝光”。完成被拍摄影像的记录。与传统的光电相机相比.数码相机不是采用胶卷,而是采用一种名叫CCD光电耦合器的感光元件,并且SM卡或者其他类似的可擦写的电子介质来保存图像。在工作原理上,CCD元件感受镜头之后接收到的光线强度(亮度)和频率(色彩)转化为电信号,然后再存放在存储器中.形成计算机可以处理的数字文件。

Digital camera is a light, electricity, machine integration products. It is based on electronic storage devices as camera record carrier. Through the optical lens under the control of aperture and shutter. Achieve “exposure” on electronic storage devices. Complete the recorded image of the record. Instead of using film, digital cameras use a light-sensitive element called CCD optocouplers, as well as SM cards or other similar erasable electronic media, to save images compared to traditional photo cameras. In principle, the intensity (brightness) and frequency (color) of the light received by the CCD after the lens is converted into electrical signals and then stored in memory, forming a digital file that can be processed by a computer.