ultraviolet source
Học thuậtThân thiện
Definition
Noun: A source of illumination that emits ultraviolet radiation. This refers to any object or device that produces light in the ultraviolet (UV) part of the electromagnetic spectrum, which is invisible to the human eye.
Usage
The term is used to describe the origin or provider of ultraviolet light in scientific, technical, and general contexts. * The laboratory uses a specialized ultraviolet source to examine the fluorescent minerals. * For this experiment, we need to calibrate the ultraviolet source to a specific wavelength. * The sun is a natural ultraviolet source, which is why we need sunscreen.
Advanced Usage
- Astronomical Context: In astronomy, an "ultraviolet source" often refers to a celestial object, such as a star, galaxy, or quasar, that emits a significant amount of its energy in the ultraviolet range. Observations require space-based telescopes.
- The Hubble Space Telescope identified a distant quasar as a powerful ultraviolet source.
Variants and Related Words
- UV source: A common abbreviation with identical meaning.
- Black light: A specific type of ultraviolet source that emits long-wave UV-A radiation, often used to make fluorescent materials glow.
- Emission source: A broader term for any origin of emitted radiation or particles.
Synonyms
- UV emitter
- Source of UV radiation
- Ultraviolet lamp (when referring to a man-made device)
Related Phrases
- Ultraviolet radiation: The invisible light emitted by an ultraviolet source.
- Ultraviolet spectrum: The range of ultraviolet wavelengths.
Noun
- any source of illumination that emits ultraviolet radiation