Point light
A point light means u. a. in photography and optics a light source that has a small spatial extent in relation to its distance from the illuminated object. In the real sense, a point light source has the dimension 0. Such light sources actually only exist to a good approximation . The light rays seem to emanate from a “point”.
With a point light source, light spreads in a star shape in all directions.
Typical point light sources are the sun , a flashlight and incandescent lamps ( headlights ) without separate light shapers (reflectors, diffusers, soft boxes). In addition to the usual parabolic mirrors and light flaps, spotlights usually have special lenses for focusing the light. They are often used in stage technology . The common flashlights are a very simple form of spotlight .
Physically, a star is a good approximation of a point light source.