1. 講者： 許永昌 老師 1

2. Contents The Ray Model of Light Object Eye Ray diagram and Ray tracing Aperture Reflection Specular reflection The Plane Mirror Diffuse reflection Refraction Snell’s Law (derived from Wave model) Image formation by Refraction. Color and dispersion ( 實驗 11) Thin Lenses: From Ray tracing From Refraction Theory 2

3. The Ray Model of Light ( 請預讀 P700~P701) 3

4. Action Purpose: Get the feeling of Ray Model Objects: 1 laser pen. A light bulb. Action: How to represent a laser beam by Ray Model? Parallel bundle Can you predict the size of a shadow? Point source 4

5. Ray diagram and Ray tracing ( 請預 讀 P702 & P716) 5

6. Exercise 6

7. Reflection ( 請預讀 P703~P705) 7 這兩個 properties 其實由 Wave Model 可以得到解釋。

8. Exercise Plot the light rays emitted from a point source reflecting from a plane mirror. How do you see this point source? Hint: diverging rays. Where is the virtual image? 8

9. Homework Student Workbook 23.2 23.4 23.7 23.9 9

10. Refraction ( 請預讀 P706~P711) 10 Angle of refraction incidentinterface Reflected Refracted

11. Total internal reflection (TIR) and Fiber Optics 11

12. Action Purpose: Get the feeling about the reflection and refraction. Objects: One tank of water Soda dust Laser pens Fiber Action: Send a laser (or lasers) beam into the water with soda Observe the behavior of reflection and refraction. Send a laser beam into the fiber. 12

13. Image Formation by refraction ( 請 預讀 P712) 13

14. Homework Student Workbook 23.11 23.13 23.16 14

15. Color and Dispersion ( 請預讀 P713~P716) 15

16. Homework Student Workbook 23.19 23.21 16

17. Thin Lenses: Ray Tracing ( 請預讀 P717~P721) Qualitative 17 Converging Lens Diverging Lens

18. Action 18

19. Exercise Draw the Ray-tracing diagrams of Real or virtual image? 19 Focal point

20. Lateral Magnification 20 s s’ h h’ m :PositiveNegative h and h’ s (object) Virtual image s’ (image) Real image

21. Homework Student workbook 23.23 23.24 23.28 21

22. Thin Lenses: Refraction Theory ( 請預讀 P722~P727) Quantitative 22 s s’ PositiveNegative R Convex toward the real object Concave toward the object 本頁公式請自行參照課本。

23. Image Formation with spherical mirrors ( 請預讀 P728~P731) 23

24. Homework Student Workbook 23.30 23.32 Student Textbook 23.49 23.56 Prove the equations shown in P22 & P23 of this pptx file. 這一章有許多容易混淆的定義，所以強烈建議一定要 自行製作 Terms and Notation 的卡片。 24