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High-speed, high-precision focal length measurement using double-hole mask and advanced image sensor software Binh Xuan Cao; Phuong Le Hoang; Ahn, Sanghoon; Kim, Jeng-o; Kang, Heeshin; Noh, Jiwhan, ISA TRANSACTIONS, v.74, pp.239 - 244, 2018-03 |
In-Situ Real-Time Focus Detection during Laser Processing Using Double-Hole Masks and Advanced Image Sensor Software Binh Xuan Cao; Phuong Le Hoang; Ahn, Sanghoon; Kim, Jeng-o; Kang, Heeshin; Noh, Jiwhan, SENSORS, v.17, no.7, 2017-07 |
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