Optical Characters Recognition 光学字符识别
Handprinted HIRAGANA characters for optical 光学字符识别的手工打印平假名字符
This article introduced the principle of WDM and the optical characters, proposed a novel structure of WDM.
介绍了光波分复用器的工作原理，典型干涉膜型两波长光波分复用器器件结构原理及光学薄膜特性。
Letters and other characters on the screen are formed out of ink that has a high optical contrast with the background, making them easy to read.
在屏幕上的字体由墨水形成，与背景形成很高的光学对比度，使之便于阅读。
An optical scanner can actually read characters and transfer them to the monitor screen of a computer.
光学扫描仪能读出字符，并将其转换到电脑显示屏上。
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