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
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