JPS58193227U - color discrimination device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の色判別装置のブロック図、第２図は第１
図番部のタイムチャートの図、第３図は被検出体の一例
の色模様の図、第４図は各色紙の透過分光特性曲線図、
第５図はこの考案の実施例である色判別装置のブロック
図、第６図は同色別装置に用いた光電素子の波長−相対
感度曲線図、第７図は第５図番部のタイムチャートの図
、第８図は可視光Ｂ色の出力を増した場合の発光ダイオ
ード接続図である。 ３・・・緑色発光ダイオード、４・・・赤色発光ダイオ
ード、３′・・・近赤外発光ダイオード、４′・・・黄
色発光ダイオード、５・・・被検出体、６・・・フォト
ダイオード。Figure 1 is a block diagram of a conventional color discrimination device, and Figure 2 is a block diagram of a conventional color discrimination device.
Figure 3 is a diagram of the time chart in the figure part, Figure 3 is a diagram of the color pattern of an example of the object to be detected, Figure 4 is a diagram of the transmission spectral characteristic curve of each colored paper,
Fig. 5 is a block diagram of a color discrimination device which is an embodiment of this invention, Fig. 6 is a wavelength-relative sensitivity curve diagram of a photoelectric element used in the same color discrimination device, and Fig. 7 is a time chart of the part numbered in Fig. 5. , and FIG. 8 are light emitting diode connection diagrams when the output of visible light B color is increased. 3...Green light emitting diode, 4...Red light emitting diode, 3'...Near infrared light emitting diode, 4'...Yellow light emitting diode, 5...Detected object, 6...Photodiode .

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の半導体受光素子を交互点灯しつつその光を黒また
は他色の被検出体に照射して、その透過光または反射光
を可視光から近赤外領域にかけて感度の高い半導体受光
素子で電気信号に交換した後同期検波し、さらにその検
波信号を基準電圧と比較して被検出体の色判別を行う色
判別装置において、上記半導体発光素子を可視光発光ダ
イオードと、近赤外発光ダイオードとで構成したことを
特徴とする色判別装置。Multiple semiconductor light-receiving elements are turned on alternately and the light is irradiated onto a black or other color object to be detected, and the transmitted or reflected light is converted into an electrical signal by the highly sensitive semiconductor light-receiving element in the visible light to near-infrared region. In a color discrimination device that performs synchronous detection after replacing the detector, and then compares the detected signal with a reference voltage to discriminate the color of the object to be detected, the semiconductor light emitting element is replaced with a visible light light emitting diode and a near infrared light emitting diode. A color discrimination device characterized by comprising: