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光盘驱动器使用一两年以后,常常会出现读盘能力下降的问题,这个问题是怎么产生的呢?一般地,有下面两种原因:(1)由于激光头是向上放置的,不使用时,灰尘会落在激光头的透镜表面上,造成透光度下降,引起读盘能力下降。(2)由于经常使用“破盘”——表面有伤的光盘,读至有伤部位时,光头将上下移动调整聚焦并调整激光发光管的发射强度,以适应光盘,长此以往,高功率地发射激光使发射
After one or two years of using an optical disk drive, the problem of a decrease in reading ability often occurs. How can the problem be caused? Generally, the following two reasons exist: (1) Since the laser head is placed upwards and not in use, Dust will fall on the lens surface of the laser head, resulting in decreased transparency, causing the ability to read the disc. (2) As the regular use of “broken disk ” - the surface of the injured disc, read the injured area, the head will move up and down to adjust the focus and adjust the emission intensity of the laser LED to adapt to the CD, the long run, high power Launch laser to launch