Lecture 25: Lenses, Optical Instruments
Objectives:- Understand refraction on a spherical surface
- Understand the differences between converging and diverging lenses
- Draw ray diagrams for converging and diverging lenses, solve the corresonding lens equations
- Understand how lens combinations and optical instruments work
- Powerpoint: lecture25.ppt
- Pdf (recommended for printing): lecture25.pdf
| Announcements | Powerpoint | |
| Death Rays | Video | Powerpoint |
| Refraction at Spherical Surfaces | Video | Powerpoint |
| Refraction at a Spherical Surface: Example | Video | Powerpoint |
| Thin Lenses | Video | Powerpoint |
| Thin Lenses: Ray diagrams | Video | Powerpoint |
| Solving the Lensmaker's Equation | Video | Powerpoint |
| Review of Sign Conventions | Video | Powerpoint |
| Lens Combinations and Optical Instruments (will not be lectured on; will not be tested) | Powerpoint |
Videos produced and narrated by Dr. Allan Pringle.