With the continuous deepening of LED research and development, LED technology innovation and application areas continue to expand, and the LED market is becoming wider and wider. UV LED has gradually entered our field of vision, and some companies have participated in the research, improvement and application of UV LED UV lamps. For the general public, the right amount of ultraviolet light of the appropriate wavelength is also a necessary light wave for our human body. So today, let’s take a look at the areas where UV LEDs are mainly used.
The so-called ultraviolet rays (Ultraviolet Rays/abbreviated UV) refers to the visible rays of the sun's rays (red orange, yellow, green, blue and purple), and the light that is invisible to the naked eye other than purple. Ultraviolet is the general term for radiation with wavelengths from 10nm to 400nm in the electromagnetic spectrum. According to different wavelengths, ultraviolet rays are generally divided into three bands: A, B, and C, as follows: UVA is 400-315 nm, UVB is 315-280 nm, and UVC is 280-100 nm. Corresponding to different wavelengths, specific applications are different.
In UVLED market applications, UV-A occupies the largest market share, up to 90%. Its main application market is curing, which involves nail art, teeth, ink printing and other fields. In addition, UV-A also introduces commercial lighting, which can make white clothes look whiter. As for UV-B and UV-C, they are mainly used in sterilization, disinfection, medical light therapy, etc. Among them, UV-B is mainly used for medical treatment, and UV-C is used for sterilization and disinfection. In addition, UV LED has been applied to photoresin hardening, insect trapping, printing from banknote recognition, and the development of biomedical, anti-counterfeiting, air purification, data storage and military aviation fields towards sterilization and disinfection markets, focusing on special lighting.
Application areas in light curing systems:
Typical applications of the UVA band are UV curing and UV inkjet printing. The representative wavelengths are 395nm and 365nm. UV LED light curing applications include the curing of UV adhesives in display, electronic medical, instrumentation and other industries; building materials, furniture, home appliances, UV coating curing in automotive and other industries; UV ink curing in printing, packaging and other industries...Among them, the UV LED decorative panel industry has become a hot spot. The biggest advantage is that it can produce zero-formaldehyde environmentally friendly panels and save 90% of energy. It has the advantages of large output, coin scratch resistance, comprehensive benefit and economy. This means that the UV LED curing market is an all-round and full-cycle application product market.
Microelectronics industry-UV light curing applications: mobile phone component assembly (camera lens, earpiece, microphone, housing, liquid crystal module, touch screen coating, etc.), hard disk head assembly (gold wire fixing, bearing, coil, chip bonding, etc.), DVD/digital camera (lens, lens bonding, circuit board reinforcement), motor and component assembly (wire, coil fixing, coil end fixing, PTC/NTC component bonding, transformer core protection), semiconductor chip (moisture protection coating Layer, wafer mask, wafer contamination inspection, UV tape exposure, wafer polishing inspection), sensor production (gas sensor, photoelectric sensor, optical fiber sensor, photoelectric encoder, etc.).
LED UV curing applications in PCB industry: fixing of components (capacitors, inductors, various plug-ins, screws, chips, etc.), moisture-proof potting and core circuit and chip protection, anti-oxidation coating protection, circuit board conformal (corner) coating, Ground wire, flying wire, fixed coil, wave soldering through hole mask.
