Abstract
With the ever-improving requirements for printing resolution, printing speed and noise, laser printing and scanning unit based on the precision optical technology have been greatly developed in recent years. The f-theta lens is considered to be the most important element in the laser printing and scanning unit that affects the printing resolution, which can convert the computer digital data into a light signal and transmit the optical information to the laser printing and scanning system. It is a mainly composed of a light source, collimator lens, and polygon mirror. Many researches of obtaining the higher printing or scanning resolution by increasing the number of lenses have been studied, but this method will inevitably increase the volume of the entire system. In this study, a solution to optimize the optical performance of the f-theta lens was proposed and verified by a series of optical numerical investigation on the laser printing and scanning unit. The satisfactory optical performance of the optimal f-theta lens is confirmed by experimental method. In addition, the modality of the f-theta lens was verified by injection molding simulation.
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This study was supported by the Basic Science Research Program through the NRF of Korea (NRF) funded by the MEST (NRF-2020R1A2C1011958).
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Yong-Woo Park is a Ph.D. candidate in the Department of Convergence Mechanical Engineering, Gyeongsang National University. His research interest is Mechanical System Design.
Zhen Qin received the B.E. degree from Gachon University, Seongnam, Korea in 2013. He received his M.S. and Ph.D. degrees in mechanical and aerospace engineering from Gyeongsang National University, Jinju, Korea, in 2019 and 2021, respectively. He has worked at R&D center of Kdac Co., Ltd., since 2013. Dr. Qin is currently a Professor of Shandong University of Technology in Zibo, China.
Sung-Ki Lyu received his bachelor’s, master’s degrees at Chonbuk National University, Korea, in 1987 and 1989, respectively. And he got the doctor’s degrees at Tohoku University, Japan, in 1994. Dr. Lyu is currently a Professor of Gyeongsang National University in Jinju, Korea.
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Park, YW., Qin, Z. & Lyu, SK. Study on design and processing performance verification of a 600 dpi f-theta lens. J Mech Sci Technol 35, 5643–5653 (2021). https://doi.org/10.1007/s12206-021-1135-6
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DOI: https://doi.org/10.1007/s12206-021-1135-6