About WAKAUMI HIROO
About 東京都産業技高専
About 電気学会電子・情報・システム部門大会講演論文集(CD-ROM)
About bar code
About collimator
About laser beam
About high-resolution
About semiconductor laser
About three-valued logic
About photodetector
About numerical aperture
About voltage
About aspherical lens
About reader
About laser diode
About bias voltage
About bar code reader
About I/O units
About 3値
About バーコード
About 高分解能