| 日常生活中的夫琅禾费衍射现象与教学实践 |
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| 引用本文： | 吴许强,汪光骐,俞本立.日常生活中的夫琅禾费衍射现象与教学实践[J].安徽教育学院学报,2011(6):41-42. |
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| 作者姓名： | 吴许强 汪光骐 俞本立 |
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| 作者单位： | 安徽大学物理与材料科学学院,安徽合肥,230039 |
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| 基金项目： | [基金项目]安徽普通高等学校自然科学基金KJ2010A033)，光电信息获取与控制教育部重点实验室开放基金 |
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| 摘 要： | 大学物理教学实践中，光的衍射因为概念相对抽象，理论分析较多，成为光学部分的教学难点。但笔者发现，如果能将光的衍射与日常生活实践相结合，设计简单实验，并对其原理进行简单分析、对其应用领域进行拓展，能充分激发学生学习兴趣，大大提高教学效果。文章以光的夫琅禾费衍射知识点的教学实践为例，设计了测量数码相机镜头分辨率的实验，并讨论了夫琅禾费衍射对GoogleEarth卫星成像系统的影响，取得了不错的教学效果。
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| 关 键 词： | 教学实践 夫琅禾费衍射 分辨率 教学效果 |
Daily Fraunhofer Diffraction Phenomenon and Teaching Practice |
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| WU Xu-qiang,WANG Guang-qi,YU Ben-li.Daily Fraunhofer Diffraction Phenomenon and Teaching Practice[J].Journal of Anhui Institute of Education,2011(6):41-42. |
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| Authors: | WU Xu-qiang WANG Guang-qi YU Ben-li |
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| Institution: | (School of Physics and Materials Sciences, Anhui University, Hefei 230039, China) |
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| Abstract: | In college physics teaching practice, the light diffraction section, due to its relatively abstract concept and complex theoretical analysis, becomes a difficult knowledge point of optics section. However, the authors found that if we can combine this knowledge point with daily life, design some simple experi ments, do some simple principal analyses, and expand its application field, the students＇ learning interest can be fully activated, which will greatly enhance the effectiveness of teaching. In the paper, Fraunhofer light diffraction is taken as an example of teaching practice, a experiment which meaures resolution of dig- ital camera lens is designed, and the impact of Fraunhofer diffraction to the Google Earth satellite imaging system is discussed, resulting in good teaching effect eventually. |
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| Keywords: | teaching practices Fraunhofer diffraction resolution teaching effect |
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