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http://dx.doi.org/10.14775/ksmpe.2021.20.06.114

Effect of Injection Temperature Condition on Root Mean Square and Peak-to-Valley of F-theta Lens  

Park, Yong-Woo (Department of Convergence Mechanical Engineering, Gyeongsang National University)
Moon, Seong-Min (School of Mechanical & Aerospace Engineering, Gyeongsang National University)
Lyu, Sung-Ki (School of Mechanical & Aerospace Engineering, Gyeongsang National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.6, 2021 , pp. 114-120 More about this Journal
Abstract
This study is focused on the root mean square and peak-to-valley based on the injection conditions of the f-theta lens, one of the main components of laser printers and laser scanning systems. The f-theta lens of an aspherical plastic lens requires ultra-preaction. Injection molding is typically used for the mass production of aspherical plastic lenses. In the injection-molding method, the resin in the lens shape is filled with the resin after melting the plastic pellets at a constant temperature and then cooled. It is necessary to maintain a uniform injection molding system to produce high-quality lenses. These injection-molding systems are influenced by different factors, such as pressure, speed, temperature, mold, and cooling. It is possible to obtain a lens that exhibits the optical characteristics required to achieve harmony. We investigated the root mean square and peak-to-valley caused by variations in temperature, a critical parameter in the melting and cooling of plastic resins generated inside and outside the injection mold.
Keywords
Laser Scanning Unit; F-theta Lens; Injection; Root Mean Square; Peak to Valley;
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