light source
A source of light for use in an optical system such as a microscope. Common light sources include light emitting diodes, halogen lamps, lasers, and even the sun. It is the core component of an illuminator. It may also refer to the source in a ray tracing diagram.
Synonyms: source
See also: illuminator , light emitting diode , halogen lamp , laser , mercury arc lamp , metal-halide arc lamp , xenon arc lamp
