Fluorescent Brightener Fluorescent application areas

Fluorescent Lighting
Common fluorescent lamp is an example. Lamp inside is vacuumed and then inject a small amount of mercury. The oxidized PE WAX  mercury discharge lamp electrodes emit ultraviolet light . These ultraviolet light is invisible and harmful. So called tube wall covered with a layer of phosphorus ( phosphor ) the light substance that can absorb the ultraviolet light and emit visible light.
Can emit white light emitting diode (LED) is based on a similar principle . Emitted from the semiconductor light blue , blue light can excite the pole attached to the reflector of phosphorus ( fluorescent ) the light , so that they emit orange fluorescence light of two colors mix together showing the nearest white wildly .
Highlighter
Highlighter fluorescent agent, it encounters UV ( sunlight , fluorescent , mercury more ) will produce a fluorescent highlighter effect, a white light , so that the colors look a dazzling fluorescent feeling. Fluorescent highlighter with our watches are not the azodicarbonamide  same principle fluorescent light sticks , light sticks are internal reactions occurring radioactivity , radiation produced by the outer periphery of phosphors excited , so they at night without any UV luminescence under all circumstances . The highlighter is certainly the case before issuing a UV fluorescent highlighter that you just put the handwriting near mosquito lights , detectors can be seen very clearly .
Fluorescence in biochemistry and medical biochemistry and medicine has been widely used . It can be a fluorescent chemical reaction of the chemical groups bonded to biological macromolecules , and then by observing the fluorescence emitted tracer groups sensitive to detect the  titanium dioxide bio-molecules. Gems, minerals
Gems, minerals, fiber and other materials can be used as evidence in criminal ultraviolet or X-ray irradiation issued under the different nature of the fluorescence.
Rubies, emeralds , diamonds can be issued under short wavelength UV fluorescent red , emerald , topaz ( topaz ) , pearl can also fluoresce under ultraviolet light . Diamonds can also be issued under the X-ray phosphors .