optical reader
noun [ C ] computing specialized uk/ˌɒp.tɪ.kəl ˈriː.dər/ us/ˌɑːp.tɪ.kəl ˈriː.dɚ/ (also optical data reader, /ˌɒp.tɪ.kəl ˈdeɪ.tə ˌriː.dər/ /ˌɑːp.tɪ.kəl ˌˈdeɪ.t̬ə riː.dɚ/ optical mark reader, /ˌɒp.tɪ.kəl ˈmɑːk ˌriː.dər/ /ˌɑːp.tɪ.kəl ˈmɑːrk ˌriː.dɚ/)
（电脑的）光学读取器
a device that takes a picture of visual information and changes it into a form that a computer can store and show on its screen
The optical reader scans number plates and compares them against stolen vehicles. 光学读取器扫描车牌，并与被盗车辆进行比较。
Optical data readers can be used to scan a document and make sense of the patterns it finds within the document. 光学数据读取器可用于扫描文件，并识别其在文件中发现的模式。
Some devices, such as optical mark readers, enable data to be entered directly, without human intervention. 有些设备，如光学标记读取器，可以直接输入数据，无需人工干预。
- More examples
- They use scanning technology, in which voters fill out paper ballots that are then put through optical readers.
- The optical reader misread one of the handwritten digits in the Zip code.
- Many industries make use of voice recognition, optical data readers, and bar code scanners.