A dome is a spherical enclosure or cover used to protect or cover an object. It is typically made of transparent or translucent materials such as glass, plastic, or other transparent materials. Domes have various applications, including in lighting fixtures, lamps, sensors, cameras, and instruments. They are designed to protect internal components from external influences such as dust, humidity, wind, or other physical damage. Domes also provide functions such as light diffusion, even distribution, and glare prevention, making them common in lighting and optical applications.