Читать книгу Surface Science and Adhesion in Cosmetics - Группа авторов - Страница 67
3.3 UV Cure Light Sources: Gallium-Doped Low-Wattage Long Wavelength Fluorescent (FL) Bulbs and Light Emitting Diodes (LEDs) 3.3.1 UV Light Spectrum
ОглавлениеTo activate the PI a UV light source is needed that is tailored to the proper wavelength. To understand this better we need to review the wavelengths of UV light sources that are available commercially.
As one can see in Figure 3.3, UV light sources are available in the UV-A (long wavelength: starts at 365 nm), UV-B (midrange wavelength: starts at 302 nm) and UV-C (short wavelength: starts at 254nm).
Figure 3.3 Electromagnetic spectrum. UV-C (shortwave) starts at 254 nm, UV-B (midrange) starts at 302 nm and UV-A (longwave) starts at 365 nm. UV cure light sources used in the UV nail gel area use the UV-A source.
