Apparatus for optically reading printed information
作者： Toshiyasu Sakai , Hiromitsu Takai , Tadao Oshima , Atutoshi Okamoto , Hiroshi Yamamoto
DOI:
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摘要: Apparatus for optically reading printed information by radiating light onto to be reflected thereby, receiving the through an optical system and converting image of into a corresponding electric signal. The source employs red emitting diodes which radiate highly bright having wavelength peak at about 660 nm so that sensor can receive contrasting from in black on white base. further or alternatively infrared 925 also received blue green
lens.org 参考文章(13)
Alan C Traub, Light pen reading ,(1974)
Anthony Ross Lazzara, Paul Franklyn Key, Color mark detector ,(1977)
Kazuharu Teraoka, Bar code printer ,(1981)
Atsutoshi Okamoto, Toshiyasu Sakai, Masahiro Hara, Bar code scanner ,(1982)
Glenn W Robison, Raymond C Runquist, John B Christie, Color bar code tag reader with light-emitting diodes ,(1970)
Tetsuo Saimi, Optical information reading device ,(1981)
Watanabe Hideaki, Shimada Tomoyuki, Takekawa Takashi, LIGHT SOURCE FOR FACSIMILE ,(1980)
Gotou Takeshi, LIGHT SOURCE OF OPTICAL READER ,(1978)
Laurer George J, Cowardin Robert L, SONDE POUR LA LECTURE OPTIQUE DE SYMBOLES GRAPHIQUES CODES ,(1976)
Tajima Jiyouji, DETECTION SYSTEM FOR OPTICAL COLOR MARK ,(1979)