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・ Optical phenomena
・ Optical physics
・ Optical power
・ Optical power budget
・ Optical power margin
・ Optical power meter
・ Optical printer
・ Optical projection tomography
・ Optical properties of carbon nanotubes
・ Optical properties of water and ice
・ Optical proximity correction
・ Optical pulsar
・ Optical pumping
・ Optical Race
・ Optical radiation
Optical reader
・ Optical recording
・ Optical rectification
・ Optical relief
・ Optical resolution
・ Optical Review
・ Optical RFID
・ Optical ring resonators
・ Optical rogue waves
・ Optical rotation
・ Optical rotatory dispersion
・ Optical scalars
・ Optical scan voting system
・ Optical sectioning
・ Optical sine theorem


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Optical reader : ウィキペディア英語版
Optical reader

An optical reader is a device found within most computer scanners that captures visual information and translates the image into digital information the computer is capable of understanding and displaying.
An example of optical readers are marksense systems for elections where voters mark their choice by filling a rectangle, circle, or oval, or by completing an arrow. After the voting a tabulating device reads the votes using "dark mark logic", whereby the computer selects the darkest mark within a given set as the intended choice or vote.
Marksense is also used extensively in such areas as lotteries and multiple choice tests.
==See also==

*Digital paper
*Optical scan voting system
*Optical mark recognition

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Optical reader」の詳細全文を読む



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