IRR A
770-1400 nm
IRR C
3,000-100,000 nm
IRR B
1400-3,000nm
60% Sunlight, Mottled Pigmentation, Long Wavelength
IRR
40% Sunlight, Homogenous Pigmentation, Short Wavelength
UVR
o Hot & glowing
o IR + Visible red light
o Source: tungsten or carbon filament enclosed in quartz tube
o Distance: 18 – 24 inches
o Deep (10 mm; Subcutaneous tissue)
Short Infrared Ray ALuminous
o Non-glowing & requires pre-heating
o IR only
o Source: Metal or spiral coil around insulated material
o Distance: 29 – 36 inches
o Superficial (Stratum Corneum)
Non-Luminous Long Infrared B