Converging Red and Near Infrared Light Promotes Deeper Penetration

While flat panel arrays provide red and near infrared light therapy to a large area of the body, they are not as effective as a converging light source to deliver these benefits to deep tissue like joints and muscular tissue on limbs. The polar graph in figure 1 illustrates the irradiance at various angles along a 2 inch radius of an air for a flat panel LED array. These are actual measurements taken with a solar power irradiance meter mounted to a rotary fixture as illustrated in figure 3.

 The irradiance meter has a spectral response from 400 nm to 1100 nm and is cosine corrected. Figure 2 illustrates the irradiance of a converging light source. In addition to the higher irradiance level at 0 degrees, the irradiance levels are significantly higher over the complete angular range. When comparing both of these polar graphs, we can compute the average irradiance across a 120 degree angle.For figure 1, that would be 15 + 28 +  45 + 57 + 70 + 82 + 88 + 82 + 70 + 57 + 45 + 28 + 15 = 682 / 13 = 52. That would be the average irradiance across the 120 degree span for a flat panel array.

For figure 2 that would be 62 + 80 + 90 + 96 + 100 + 105 +108 + 105 + 100 + 96 + 90 + 80 + 62 = 1174 / 13 = 90. That is the average irradiance across the 120 degree span for a converging light source. This illustrates that the converging light source yields 73 % more irradiance to a joint or curved surface of the body. This localized light therapy device delivers over 100 mW/cm2 irradiance over a curved surface of the body, which is the optimal level or irradiance to get the health and wellness benefits of red light (660 nm) and near infrared (850 nm) light therapy.

 The health benefits of red and near infrared light therapy, also known as photobiomodulation, have been supported by hundreds of clinical studies for a wide range of health issues including pain management, skin conditions, wound care and muscle recovery.

 Specifications

     Power                 48 Watts

     LEDs                   24 x 2 Watts

     Wavelength        Red (660 nm) & Near Infrared (850 nm)

     Ratio                   660nm:850nm   1:1

     Irradiance           > 100 mw/cm2 over 100 degree span

     Convergence     0 to 100 Degree

     Light Stand        Included