IMAGE READING DEVICE

• Main Authors: MATSUI HIDEKI, KUNIEDA TATSUYA, OGOMI TOMOKAZU, TOKITA NAOYUKI
• Format: Patent
• Language: English; Japanese
• Published: 21.11.2019
• Subjects: CALCULATING; CHECKING-DEVICES; COMPUTING; CONVEYING; COUNTING; HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PACKING; PERFORMING OPERATIONS; PHYSICS; STORING; TRANSPORTING

To simplify and downsize the structure of an electrostatic capacitance detecting device or an image reading device having an electrostatic capacitance detecting device.SOLUTION: This device is provided with: a first electrode 1 and a second electrode 2 at least respective parts of which are opposed to each other across a conveying path 5 along a conveying direction in which a sheet-like detection object 3 is conveyed; an oscillation circuit which forms an electric field 9 between the first electrode 1 and the second electrode 2; a detection circuit which detects a change in electrostatic capacitance between the first electrode 1 and the second electrode 2; a first substrate 11 and a second substrate 12 in which at least one of the oscillation circuit and the detection circuit is formed; a first flat plate 6 having insulation property which is formed between the first electrode 1 and the conveying path 5; and a second flat plate 7 having insulation property which is formed between the second electrode 2 and the conveying path 5.SELECTED DRAWING: Figure 25 【課題】 静電容量検出装置又は静電容量検出装置を有する画像読取装置の構造の簡易化及び小型化を目的とする。【解決手段】 シート状の検出対象物３が搬送される方向である搬送方向に沿った搬送路５を挟んで、少なくとも一部が対向する第１電極１及び第２電極２と、第１電極１と第２電極２との間に電界９を形成させる発振回路と、第１電極１と第２電極２との間の静電容量の変化を検出する検出回路と、発振回路及び検出回路の少なくとも一方が形成された第１基板１１及び第２基板１２と、第１電極１と搬送路５との間に形成された絶縁性の第１平板６と、第２電極２と搬送路５との間に形成された絶縁性の第２平板７とを備える。【選択図】図２５