Femtosecond laser marking depth of field 3D code

• Published in: Infrared physics & technology Vol. 131; p. 104680
• Main Authors: Wang, Aming, Feng, Aixin, Jiang, Zhihang, Pan, Xiaoming, Yu, Jinhai
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2023
• Subjects: 3D code; Cemented carbide; Depth-of-field; Laser marking; Laser marking; Cemented carbide; 3D code; Depth-of-field

•This paper designs a depth-of-field 3D code which can be used for product traceability anti-counterfeiting.•Studying the effect of different laser parameters on the depth-of-field unit module.•Research on recognition and information reading of depth of field 3D code. In order to reduce the market i...