Foreign object inspection device and foreign object inspection method

A foreign body inspection and foreign body technology, which is applied in measurement devices, image data processing, television, etc., can solve problems such as blurred foreign body images, and achieve the effect of suppressing the reduction of inspection capabilities, achieving high efficiency, and reducing risks.
CN110333255AInactive Publication Date: 2019-10-15SUMITOMO CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SUMITOMO CHEM CO LTD
Publication Date
2019-10-15
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

Provided is a foreign object inspection device and a foreign object inspection method. The foreign object inspection device to increase the efficiency of inspection and reduce the risk of a failure todetect a foreign object is provided. The foreign object inspection device includes: a moving mechanism configured to translate an inspection target; an image sensor in the form of a TDI sensor; a storage section; a pixel value computing section configured to calculate the respective second pixel values of a plurality of pixels on the basis of first pixel values; and a pixel value integrating section configured to integrate the respective second pixel values of a group of pixels belonging in a particular continuous region.
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Description

technical field

[0001] The present invention relates to a foreign matter inspection device and a foreign matter inspection method. Background technique

[0002] Nonaqueous electrolyte secondary batteries such as lithium ion secondary batteries are widely used as batteries for personal computers, mobile phones, portable information terminals, and the like. In particular, lithium-ion secondary batteries are used to reduce CO as compared to conventional secondary batteries. 2 Attention is paid to batteries that discharge less and help save energy.

[0003] Conventionally, development of a separator wound body in which a separator for a non-aqueous electrolyte secondary battery is wound around a core body has been underway. In addition, studies are being made on foreign matter inspection for detecting foreign matter adhering to the separator wound body.

[0004] As an example of an inspection that can be applied to the above-mentioned foreign object inspection, the technology...

Claims

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