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Ultraviolet radiation, also known as simply UV, ... Significant examples include 193-nm photolithography equipment (for semiconductor manufacturing) ...
Ultraviolet photography of archaeological sites may reveal artifacts or traffic patterns not otherwise visible. Ultraviolet images have no color since ultraviolet radiation is invisible to human eyes. Photographs of dyes that fluoresce under ultraviolet illumination are examples of ultraviolet fluorescence photography.
Ultraviolet astronomy is the observation of electromagnetic radiation at ultraviolet wavelengths between approximately 10 and 320 nanometres; shorter wavelengths—higher energy photons—are studied by X-ray astronomy and gamma-ray astronomy. [1] Ultraviolet light is not visible to the human eye. [2]
Most mammals cannot see ultraviolet light because their eyes are not designed to detect it. The reindeer, however, is an exception as it can see ultraviolet light. 7.
This list of space telescopes (astronomical space observatories) is grouped by major frequency ranges: gamma ray, x-ray, ultraviolet, visible, infrared, microwave, and radio. Telescopes that work in multiple frequency bands are included in all of the appropriate sections.
Optical radiation is the part of the electromagnetic spectrum with wavelengths between 100 nm and 1 mm. [1] [2] This range includes visible light, infrared light, and part of the ultraviolet spectrum. [3] Optical radiation is non-ionizing, [4] and can be focused with lenses and manipulated by other optical elements.
Near ultraviolet, visible light, infrared, microwave, radio waves, and low-frequency radio frequency (very low frequency, extremely low frequency) are all examples of non-ionizing radiation. By contrast, far ultraviolet light, X-rays, gamma-rays, and all particle radiation from radioactive decay are ionizing.
Ultraviolet coloration is used by 25 to 35 percent of angiosperms. [7] It was adapted by flowers to orient pollinators leading to an example of co-evolution. [8] UV light allows them to broadcast a guide to where their pollen is located. [4]