A lampshade is a fixture that covers the light bulb on a lamp to diffuse the light it emits. A lamp shade’s key purpose is to protect the eye from the bulb's glare and to direct light from the bulb in the lamp into the room.
Lamp shades can be made of various materials and shapes. Lampshades can be made out of a wide variety of materials like fabric, paper, glass, or stone. Different types of lampshades serve a different purpose. The shape of a lampshade is not purely for decorative reasons.
The proper shape greatly affects the kind of light the lamp gives off, as well as where that light is directed. Usually, a metal wire frame is used to make lamp shades. The wire holds their shape and provides lightweight support. Part of the frame includes arms, which extend from the top rim of the lampshade toward the centre. To connect with the lamp base, a lamp shade's frame feature fitter parts. A harp fitter of the lamp provides a platform on which the lampshade can fit and be secured by a finial.