【我的课件一】5.1透镜(hao).ppt

第五章 透镜及其应用 一 透镜 峡江县实验中学 余兰 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 学习目标 1 能区分凸透镜，凹透镜。 2了解透镜的主光轴，光心，焦点，焦距 3掌握凸透镜，凹透镜对光的作用，三条 特殊光线。 学习过程与方法 通过观察和动手实验，培养实事求是的态度 和观察分析问题能力。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 三棱镜对光线的作用 通过三棱镜的光线经三棱镜两次折射后向三棱镜较厚的一端偏折。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. F 凸透镜是三棱镜的组合 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. F 凹透镜是三棱镜的组合 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 这些都应用到透镜 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 一、透镜 透镜：用透明物质制成的表面为球面一部分的光学元件。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 中间厚边缘薄的透镜 中间薄边缘厚的透镜 凸透镜 凹透镜 外形特征： 外形特征： Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 凸透镜：中间厚边缘薄的透镜 叫凸透镜 凹透镜：中间薄边缘厚的透镜 叫凹透镜 透 镜 的 分 类 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 主光轴 光心(O) C2 C1 C2 C1 光心(O) 主光轴 凸透镜的画法 凹透镜的画法 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 主光轴和光心: 主光轴 主光轴 光心o 透镜的几个重点名词 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyri