Glare of bright light therapy and photo-rejuvenation and light therapy

Recently, a condition known as "light" source of light (intense pulsed light, called IPL) in the treatment of vascular lesions, pigmented lesions, scars, acne and hair removal and photorejuvenation - and achieved impressive clinical results. Laser similar to the mechanism and its treatment is in accordance with theory of selective photothermolysis, but the light is not laser.

(a) of the light and the light generation

strong light, also known as pulsed light (intense pulsed light, referred to as IPL) or pulsed light, which is non-associated light, in essence, is still a common light rather than laser.

light generation principle is very simple, is a high intensity light source (such as xenon lamps, etc.), through the focus and the preliminary filter to form a bunch of 400-1200nm wavelength the light, and then placed in the front of a special filter, will be lower than a certain wavelength of light filter out, issued just last band for a special treatment of light skin disorders.

clinical use of the filters are 515nm, 550 nm, 560 nm, 570 nm, 590 nm, 615 nm, 640 nm, 645 nm, 695 nm, 755 nm and so on. If using 570 nm by computer control, light pulse width adjustable at any time; and choose 1-3 each firing pulse, pulse selected target tissue can release energy continues to heat up, and let the skin fully heat, to ensure security.

by focusing and filter can produce high energy, the relative concentration of the wavelength, pulse width adjustable parameters of light with the laser in the treatment of similar, the same can be achieved principle of selective photothermolysis for treatment, so be clinically recognized as intense pulsed light source and laser technology to treat a large number of similar applications and research.

light equipment and laser equipment is shown in table

	intense pulsed light device	laser equipment
monochrome of	wide spectrum, adjustable 400-1200nm	wavelength difficult to adjust
direction	good	good
Energy	high	high
width	adjustable	generally not adjustable
pulse number	choose 1-3 each firing pulse	single
spot size	35mmx8mm	diameter is generally 2-9mm
failure rate	relatively low	relatively high

(b) of the light therapy instrument

current series of bright light therapy device including PhotoDerm (full wavelength light therapy device), QuantumHR (photon hair removal device), QuantumSR ( IPL device) and so on.

1. PhotoDerm 515-1 200nm can be issued a continuous spectrum, obtained using different filters of different wavelength bands, commonly used filters are 515nm, 550nm, 570nm, 590nm, 615nm, 645nm, 695 nm, 755 nm, etc. between the 0.5-50ms pulse width adjustable; choose 1-3 each firing pulse. Output energy density 3-90J/cm ² , spot size 8mmX 35mm or 8mmXl5mm. PhotoDerm instrument type is also the latest model with a wavelength that is VascuLight, 1 064nm, Nd: YAG laser treatment system. Laser output power up to 160W.

2. Quantum HR commonly used filters are 615nm, 645nm, 755nm, output power density of surface up to 25-45 J/cm ² , pulse width of 15-100ms, spot size 8mmX34mm. The cooling temperature of about 0 ℃.

3. Quantum SR commonly used filters are 560nm, 640nm, output power density of up to 25-45 J/cm ² , pulse width 2-7 ms, spot size 8mmX34mm. The cooling temperature of about 0 ℃.