A hollow half sphere is a three-dimensional geometric shape that represents the upper half of a sphere with its interior volume removed, forming a dome-like shell. It features a smooth, curved outer surface and a matching concave interior, separated by a consistent wall thickness. The open circular base allows access to the hollowed interior, making it lighter than a solid hemisphere while retaining its structural curvature and visual symmetry.

This versatile form can be used in a wide variety of applications, including:

• Light diffusers or lampshades in custom lighting designs
• Acoustic reflectors or directional sound shells
• Protective domes for sensors, cameras, or small electronics
• Decorative bowls or planter bases in interior design
• Enclosures or casings in mechanical or robotics projects
• Mold forms for resin casting or thermal forming
• Artistic sculptures or installations leveraging its clean curves and balance