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1. US20220178848 - PRODUCT INSPECTION METHOD AND PRODUCT INSPECTION APPARATUS

官庁
アメリカ合衆国
出願番号 17598401
出願日 25.03.2020
公開番号 20220178848
公開日 09.06.2022
公報種別 A1
IPC
G01N 21/95
G物理学
01測定;試験
N材料の化学的または物理的性質の決定による材料の調査または分析
21光学的手段,すなわち,赤外線,可視光線または紫外線を使用することによる材料の調査または分析
84特殊な応用に特に適合したシステム
88きず,欠陥,または汚れの存在の調査
95調査対象物の材質や形に特徴付けられるもの
CPC
G01N 2021/95615
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
95characterised by the material or shape of the object to be examined
956Inspecting patterns on the surface of objects
95607using a comparative method
95615with stored comparision signal
G01N 21/9508
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
95characterised by the material or shape of the object to be examined
9508Capsules; Tablets
出願人 Ushio Denki Kabushiki Kaisha
TOWA PHARMACEUTICAL CO., LTD.
発明者 Go YAMADA
Aya OTA
Koji NAKAYAMA
優先権情報 2019061998 27.03.2019 JP
発明の名称
(EN) PRODUCT INSPECTION METHOD AND PRODUCT INSPECTION APPARATUS
要約
(EN)

Super continuum light having a continuous spectrum over at least 1100 to 1300 nm is emitted from a pulsed light source, is pulse-stretched by a stretching element such that a relationship between a wavelength and an elapsed time in one pulse is one to one, and is radiated to a product. The light transmitted through the product is received by a light receiver, and output data is input to the determination unit. A quality determination program of the determination unit calculates an absorption spectrum from the output data, quantifies the absorption spectrum by chemometrics, and compares the absorption spectrum with a reference value to determine quality. The product determined to be a defective product is excluded by an exclusion mechanism.