Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens
Plastic optical components are light in weight, easy to manufacture, and amenable to mass production. However, plastic injection molded parts are liable to shrinkage and warpage as a result of the pressure and temperature variations induced during the molding process. Consequently, controlling the p...
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MDPI AG
2022-01-01
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| Online Access: | https://www.mdpi.com/2073-8994/14/2/200 |
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| author | Chao-Ming Lin Yun-Ju Chen |
| author_facet | Chao-Ming Lin Yun-Ju Chen |
| author_sort | Chao-Ming Lin |
| collection | DOAJ |
| description | Plastic optical components are light in weight, easy to manufacture, and amenable to mass production. However, plastic injection molded parts are liable to shrinkage and warpage as a result of the pressure and temperature variations induced during the molding process. Consequently, controlling the process parameters in such a way as to minimize the geometric deformation of the molded part and improve the performance of the optical component as a result remains an important concern. The present study considered the problem of optimizing the injection molding parameters for the plastic lens barrel of a bilateral telecentric lens (BTL) containing four lens assemblies. The study commenced by using CODE V optical software to design the lens assemblies and determine their optimal positions within the barrel. Taguchi experiments based on Moldex3D simulations were then performed to determine the processing conditions (i.e., maximum injection pressure, maximum packing pressure, melt temperature, mold temperature, and cooling time) which minimize the coaxiality of the plastic barrel. Finally, CODE V and grayscale analyses were performed to confirm the optical performance of the optimized BTL. The Taguchi results show that the coaxiality of the plastic lens barrel is determined mainly by the maximum packing pressure and melt temperature. In addition, the CODE V and grayscale analysis results confirm that the optimized BTL yields a better modulus transfer function, spot diagram performance, and image quality than a BTL produced using the general injection molding parameters. |
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| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T20:59:14Z |
| publishDate | 2022-01-01 |
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| spelling | doaj.art-4ab97ecbdc6944f3b3b8b717e778b18b2023-11-23T22:14:54ZengMDPI AGSymmetry2073-89942022-01-0114220010.3390/sym14020200Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric LensChao-Ming Lin0Yun-Ju Chen1Department of Mechanical and Energy Engineering, National Chiayi University, Chiayi 600355, TaiwanDepartment of Mechanical and Energy Engineering, National Chiayi University, Chiayi 600355, TaiwanPlastic optical components are light in weight, easy to manufacture, and amenable to mass production. However, plastic injection molded parts are liable to shrinkage and warpage as a result of the pressure and temperature variations induced during the molding process. Consequently, controlling the process parameters in such a way as to minimize the geometric deformation of the molded part and improve the performance of the optical component as a result remains an important concern. The present study considered the problem of optimizing the injection molding parameters for the plastic lens barrel of a bilateral telecentric lens (BTL) containing four lens assemblies. The study commenced by using CODE V optical software to design the lens assemblies and determine their optimal positions within the barrel. Taguchi experiments based on Moldex3D simulations were then performed to determine the processing conditions (i.e., maximum injection pressure, maximum packing pressure, melt temperature, mold temperature, and cooling time) which minimize the coaxiality of the plastic barrel. Finally, CODE V and grayscale analyses were performed to confirm the optical performance of the optimized BTL. The Taguchi results show that the coaxiality of the plastic lens barrel is determined mainly by the maximum packing pressure and melt temperature. In addition, the CODE V and grayscale analysis results confirm that the optimized BTL yields a better modulus transfer function, spot diagram performance, and image quality than a BTL produced using the general injection molding parameters.https://www.mdpi.com/2073-8994/14/2/200injection moldingconcentricitycoaxialityoptical barrelbilateral telecentric lensoptimization |
| spellingShingle | Chao-Ming Lin Yun-Ju Chen Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens Symmetry injection molding concentricity coaxiality optical barrel bilateral telecentric lens optimization |
| title | Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens |
| title_full | Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens |
| title_fullStr | Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens |
| title_full_unstemmed | Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens |
| title_short | Coaxiality Optimization Analysis of Plastic Injection Molded Barrel of Bilateral Telecentric Lens |
| title_sort | coaxiality optimization analysis of plastic injection molded barrel of bilateral telecentric lens |
| topic | injection molding concentricity coaxiality optical barrel bilateral telecentric lens optimization |
| url | https://www.mdpi.com/2073-8994/14/2/200 |
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