2nd Yr TO — Reflection at Curved Mirrors

Plane or Flat Mirrors

• Infinite Radius

• Zero Curvature

• Magnification is Uniform

• Normals are parallel

Curved Mirrors

• Finite Radius

• Finite Curvature

• Magnification is variable

• Normals are not Parallel

Spherical Mirrors and Aspherical Mirrors

Curved Mirrors have two variations which are?

Spherical Mirrors

• Surface is a portion of a sphere

• All normals pass through a single point

• Concave and Convex Spherical are under this mirror class

Concave Spherical and Convex Spherical

What are the names of the specific types of spherical mirrors?

Aspherical Mirrors

• Surface is not a portion of a sphere

• Normals do not pass through a single point

• Paraboloidal, Ellipsoidal, and Cylindrical are under this mirror class

Paraboloidal, Ellipsoidal, and Cylindrical

What are the names of the specific types of aspherical mirrors?

Concave Spherical

• Curves inwards

• Reflecting surface is the inner portion of the sphere

• Converges light rays from infinity after reflection

• Converging Mirror

Convex Spherical

• Curves outward

• Reflecting surface is the outer portion of the sphere

• Diverges light rays from infinity after reflection

• Diverging mirror

Mirror Aperture (AB)

Pole or Vertex (V)

Center of Curvature (C)

Principal Axis (PA)

Radius of Curvature (r)

Principal Focus / Focus Point (f)

Focal Length (FL)

Secondary Axis (SA)

Paraxial Region

Peripheral Region