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http://hdl.handle.net/10397/88110
Title: | Fabrication of micro-structured led diffusion plate using efficient micro injection molding and micro-ground mold core | Authors: | Lu, YJ Luo, W Wu, XY Xu, B Wang, CJ Li, JJ Li, LJ |
Issue Date: | Jun-2020 | Source: | Polymers, June 2020, v. 12, no. 6, 1307, p. 1-15 | Abstract: | In this paper, a new style of micro-structured LED (light-emitting diode) diffusion plate was developed using a highly efficient and precise hybrid processing method combined with micro injection molding and micro-grinding technology to realize mass production and low-cost manufacturing of LED lamps with excellent lighting performance. Firstly, the micro-structured mold core with controllable shape accuracy and surface quality was machined by the precision trued V-tip grinding wheel. Then, the micro-structured LED diffusion plate was rapidly fabricated by the micro injection molding technology. Finally, the influences of micro injection molding process parameters on the illumination of the micro-structured diffusion plate were investigated. The simulated optical results show that the illumination of the micro-structured diffusion plate can achieve a maximum value when the V-groove depth and V-groove angle are designed to be 300 mu m and 60 degrees, respectively. The experimental results indicate that the developed micro-structured diffusion plate may improve the illumination by about 40.82% compared with the traditional diffusion plate. The prediction accuracy of the designed light efficiency simulation method was about 90.33%. | Keywords: | Micro-structure Diffusion plate Micro injection molding Grinding |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Polymers | ISSN: | 2073-4360 | DOI: | 10.3390/polym12061307 | Rights: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). The following publication Lu, Y.; Luo, W.; Wu, X.; Xu, B.; Wang, C.; Li, J.; Li, L. Fabrication of Micro-Structured LED Diffusion Plate Using Efficient Micro Injection Molding and Micro-Ground Mold Core. Polymers 2020, 12, 1307 is available at https://dx.doi.org/10.3390/polym12061307 |
Appears in Collections: | Journal/Magazine Article |
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Lu_Fabrication_Micro-Structured_Plate.pdf | 5.85 MB | Adobe PDF | View/Open |
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