Lenses Ray Diagrams and Calculations

Introduction to Lenses Concave and Convex

Part 1 Explains the basics of lenses and images

Lens Image Characteristics Concave and Convex

Part 2 How to describe an image

Ray Diagrams For a Convex Lens

Part 3 How to find an image using a ray diagram

More Ray Diagrams for Convex Lenses

Part 4 Shows all the possibilities for this type of lens

Concave Lens Ray Diagrams

Part 5 Diagrams for Convave Lenses

Lens Formula Sign Convention

Part 6 Shows when to use (+) or (-) in the lens formula

Lens Formula Sample Calculation

Part 7 Shows a sample calculation using the 2 lens formulas