Lenses

Thin Lenses

• What are thin lenses

  • they are lenses that are thin :exploede:
    • they have a focal point on each side
    • they have a focal length to each focal point

• Lens Formula

$\frac{1}{f}=\frac{1}{d_0}+\frac{1}{d_i}$

• Types of Lenses

  • Convex (Converging)

    • they take the image and make it converge onto the focal point

      • the focal length is always positive

  • Concave (Diverging)

    • They take the image and