The principle of LED light wave therapy - the principle of red light therapy lamp


Understanding some of the fundamentals of light theory is important in order to get the most out of lightwave therapy and provide a clearer understanding of patient expectations.

Even with high intensity narrowband light sources, blue light (wavelength 405nm-420nm) provides very shallow penetration. It is mainly absorbed by the epidermis of the skin. Once absorbed, blue light targets P. acnes by stimulating porphyrins, which then generate intracellular singlet oxygen, which induces bacterial death.

Red light (wavelength 630nm-640nm) penetrates human tissue surface, about 80% of the energy is absorbed in the first 2cm. Red light energy has a dramatic effect on mitochondrial stimulation, which increases ATP production, which in turn increases fibroblast activity. This results in an increase in cell renewal, surface circulation and anti-inflammatory discharge.

Infrared (IR) light (wavelength 800nm–900nm) energy penetrates deeper into tissue than blue and red light. Approximately 50% penetrates to 8cm, reducing to less than 1% at 20cm (NASA study). Infrared energy is known to heat tissue, and its effects are well documented for therapeutic pain management. For cosmetic applications, IR stimulates NaK+ pumps, thereby increasing cell membrane permeability; promoting cellular pH balance while increasing nutrient absorption and eliminating waste by-products.

When red and infrared energies are used in combination with each other, biological effects such as an increase in collagen bundles and elastin fibers are increased. However, both wavelengths should not be used at the same time due to possible wavelength interference.

By pulsing wavelengths between 10 Hz and 10,000 Hz, tissue is affected to varying degrees. Slow pulses reduce nerve sensitivity by reducing the production of Brinikin Lucitrin, which is necessary to transmit pain signals. Medium-range pulses stimulate endorphin production, while intense pulses stimulate mitosis and cellular repair. Each program contains multiple pulse frequencies including continuous wave designed for the optimal tissue response indicated by each preset.

What is the history of LED therapy?

History of LED Therapy In 1903, a scientist named Niels Finsen was awarded the Nobel Prize in Medicine for his use of light therapy. It used to be called light therapy. Research progressed, and by the 1960s light therapy (now called LED therapy (or LEDT)) was used primarily in Eastern Europe to treat chronic pain, arthritis and related diseases, joint rehabilitation and soft tissue injuries, among other medical conditions. At the same time, LEDT is used in a small number of equestrian practices in the United States for animals with joint and soft tissue injuries.


In the 1980's, though currently, the field has expanded, with more clinics and medical science professions bringing the effects of light therapy to greater capacity. Through extensive research and years of use of red light therapy and infrared light therapy, it has been discovered that not only does tissue heal, but the cosmetic condition of the surface improves as well.


Additionally, many professional sports teams and athletes have found that LED therapy can be used to help with sports-related injuries, with physical therapists noting recovery times up to 50 times faster than without the therapy.


In 2001, based on a large amount of well-established data on red, infrared and blue light therapy, the first phototherapy device was developed, combining the advantages of these wavelengths of light in a compact and efficient way by using LEDs. In recent years, blue light therapy has been evaluated and studied as a derivative of ultraviolet light therapy used in the past for psoriasis to stimulate the immune system, destroy bacteria, acne, actinic keratosis (AK), SAD (seasonal effect disorder ), muscles and joints for gout, gouty arthritis, bursitis and other inflammatory conditions. Current data suggest that blue light therapy is an effective means of treating such conditions and is further supported by many dermatologist groups such as AAD, BAD, etc.


Topicals Light Infusion technology has emerged, enabling further viable development of LED therapy.

Note: This article is from a foreign forum and is for learning reference only. If there is any infringement, please contact the author to delete it

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