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Nº publicación: EP4745927A1 20/05/2026
Applicant:
GLORY KOGYO KK [JP]
GLORY LTD.

Absstract of: EP4745927A1
Provided are a sheet recognition unit, a sheet recognition method, and a sheet recognition program capable of simultaneously and easily acquiring visible range data and infrared range data without using a filter configuration that is difficult to manufacture. A sheet recognition unit includes: a light source capable of irradiating a sheet to be recognized with light having a specific wavelength; a light receiving unit that includes a plurality of light receiving elements respectively including a plurality of color filters that transmit infrared light and have different visible light transmission characteristics, receives, at the plurality of light receiving elements, light arriving from the sheet to be recognized, based on the light from the light source, and outputs light detection signals; and a recognition unit that performs arithmetic on light amount data based on the light detection signals output from the light receiving unit, depending on a ratio of genuine reference data to calculate an amount of at least one color in visible light and an amount of infrared light and recognize the sheet to be recognized based on calculated results.
