QueryCAT Logo
Search 5,000,000+ questions and answers.

Frequently Asked Questions

How laser light is different from ordinary sunlight?

Laserklinikken | FAQ - Frequently Asked Questions
Sunlight is a mixture of seven different colors, whereas Laser light is always of one single color (monochromatic). Sunlight is disorderly whereas laser beam is very orderly (coherent). Sunlight is not parallel whereas laser light runs parallel (collimated). The healing properties of Laser beam come from these differences.

UV light treatments, and sunlight (Dead Sea) Why is natural sunlight such a good healer?

Psoriasis Help Organisation - Online Forum
Natural sunlight is a good healer for many people with psoriasis, but there are some who do not respond and some who are made worse. Sunlight consists of several different types of light across a spectrum ranging from infra-red, through visible light, to ultraviolet (UV). It is the ultra-violet part that can help in treating psoriasis. See similar questions...

What is Laser or Light Therapy?

Laser Therapy Frequently Asked Questions
Laser Therapy or "photobiomodulation", is the use of specific wavelengths of light (red and near infrared) to create therapeutic effects. These effects include improved healing time, pain reduction, increased circulation and decreased swelling. Laser therapy adds energy to living systems. While we are able to explain many of its molecular and biochemical effects, it also adds energy at atomic and subatomic levels. See similar questions...

How is Pulsed Light different from a laser?

Laser Hair Removal and Electrology FAQ, MA, RI -Elizabeths E...
Pulsed light systems and lasers are very similar. The Pulsed Light System uses a newer technology that allows it to remove hair up to 10 times faster than lasers. Pulsed-light systems work by emitting pulses of intense lamplight into the hair follicles. The light is absorbed by the pigment in the follicles and converted to heat. The heat then loosens the hair and disables the follicular cells responsible for growing new hair. See similar questions...

Can I use an ordinary light bulb?

FAQ/Brooding
Never use ordinary light bulbs. They are meant to produce light and do not have the heating qualities of a heat lamp. A heat lamp is coated with silver to reflect or shoot the heat to the birds which is needed for survival. See similar questions...

What is the difference between sunlight and BIOPTRON Light?

Bioptron Light Therapy FAQs
In contrast to natural sunlight the technically synthesized BIOPTRON Light provides light therapy with controllable and therefore reproducible parameters. See similar questions...

Are laser and light-based treatments safe?

Candela Laser: Cosmetic Laser Procedures for Hair Removal, A...
Yes, laser and light-based treatments have been used for many years for a variety of medical and cosmetic procedures. Candela, the most trusted name in the industry, has pioneered the development of some of the safest and most effective technologies and products available on the market today. See similar questions...

Are there any adverse side-effects to laser or light-based treatments?

Candela Laser: Cosmetic Laser Procedures for Hair Removal, A...
In general, most procedures have a low risk of adverse side effects. Some patients experience pigment changes in the skin color. If this occurs, the skin will typically return to normal pigmentation over time. All treatment results are individual. See similar questions...

How does the laser/light process work?

Advanced Permanent Hair Removal Centers FAQ
Laser/light selectively targets the melanin in the hair so it is most effective on light, clean skin with dark follicles. After your initial preparation, your treatment provider will move a wand-like hand piece over your skin. The hand piece emits the light that disables the hair follicles. Most people perceive the light as a gentle "snapping" sensation. Once this is completed, the treatment provider will wipe away any loose hair from your skin, and you're ready to go. See similar questions...

How long have laser/light treatments been performed?

Advanced Permanent Hair Removal Centers FAQ
The FDA approved the use of lasers for hair removal in 1995. Since then, numerous studies have been conducted and significant technological improvements have been made. Basically, hair removal devices now available today include: 694 nm ruby lasers, 755 nm alexandrite lasers, 805 nm diode lasers, 1064 nm lasers, and filtered xenon flashlamps. See similar questions...

How is IPL different from a laser?

Revita Medispa :: Frequently asked questions
A:Intense pulsed light is a term often used interchangeably with the term "laser" when in fact the two are very different. Lasers emit a single beam of light at a very specific wavelength (like a laser pointer), whereas IPL contains light of all visible wavelengths (more like a light bulb). As a result, the IPL is able to treat a wide range of skin conditions at a superficial level, but does not have the ability to target specific structures, especially those that are deeper in the skin. See similar questions...

Does it have to be a laser? Why not use monochromatic non coherent light?

Frequently Asked Questions about Laser Therapy LLLT biostimu...
Monochromatic non coherent light, such as light from LED's can be useful for superficial tissues such as wounds. In comparative studies, however, lasers have shown to be more effective than monochromatic non coherent light sources. Non coherent light will not be as effective in deeper areas. See similar questions...

Does the coherence of the laser light disappear when entering the tissue?

Frequently Asked Questions about Laser Therapy LLLT biostimu...
No. The length of coherence, though, is shortened. Through interference between laser rays in the tissue, very small "islands" of more intense light, called speckles occur. These speckles will be created as deep as the light reaches in the tissue and within a speckle volume, the light is partially polarized. It is easy to show that speckles are formed rather deep down in tissue and the existence of real speckles prove that the light is coherent. See similar questions...

Is my laser or light-based treatment covered by my medical insurance?

Candela Laser: Cosmetic Laser Procedures for Hair Removal, A...
Most insurance companies do not offer reimbursement for cosmetic procedures. However, consult your practitioner for more information. See similar questions...

Is laser/light a safe and approved method of hair removal?

Advanced Permanent Hair Removal Centers FAQ
Laser hair removal was pioneered after more than 30 years of laser research by physicians at the Massachusetts General Hospital's Wellman Laboratories, and has been shown through extensive clinical trials at more than 10 laser U.S. and Canadian laser research centers to provide safe and effective hair removal. See similar questions...

Is UV light harmful? How is UV light different from say a fluorescent light?

Frequently Asked Questions
You never want to expose your skin or eyes to the light from a UV system. UV light is non-visible however it can be harmful, similar to the harmful effects of UV light from the sun. UV lamps can actually cause a severe sunburn-like effect if skin is exposed for long periods of time. Always ensure that you are wearing some type of protective glasses (ie. Safety glasses or sunglasses) when working on a UV system and the lamp is exposed. See similar questions...

How is a Digicam different from an ordinary camera?

uk.sci.astronomy FAQ
A digital camera ('DigiCam') uses a CCD chip in place of film as the image sensor. It is 'digital' because all the image information is recorded as digital data and stored electronically. The more expensive examples have larger CCD chips offering better resolution. The size of the chip is quoted in Mega-Pixels (millions of pixels), the largest commonly available is approx. 6MPixel. See similar questions...

What is different about the Cynosure Apogee EliteTM Laser?

Revita Medispa :: Frequently asked questions
A:Two laser wavelengths, the Alexandrite and the Nd:YAG, have become the standards for laser hair removal. Each has been designed to optimize treatment for a different patient population. While most facilities use one or the other, the combination of the two wavelengths embodied by the Apogee EliteTM, provides optimal hair removal across all skin types. In addition, the SmartcoolTM Chiller numbs the treated area with air, eliminating the need for messy gels and creams. See similar questions...

How is laser hair removal different from electrolysis?

Laser Hair Removal FAQ page for Women and Men Long Island Ne...
Electrolysis is a tedious, invasive and painful process that involves inserting a needle into each hair follicle and delivering an electrical charge to destroy them one at a time. Electrolysis often requires years of treatments at regular intervals. Electrolysis kills one hair follicle at a time. The LightSheer diode laser delivers light energy non-invasively to hundreds of hair follicles at a time. See similar questions...

Explore Other Topics

Do you use Tissavel faux fur?
What is a Smoke Alarm?
What is the minimum period of notice required for redundancy?
If a room says "quad" is it one room for 4 people or 2 rooms?
How much of the book do you cover?
What are common symptoms of concussion?
What is the difference between Richter magnitude and acceleration?
What is the proper attire at a bris?
Are ITLS courses the same as BTLS courses?
Is single embryo transfer a good option?
I was previously married, what do I need in order to have a Marriage License issued?
How do you determine how many words are in an essay or how many pages are in a resume?
What Does Callable Mean?
More Questions >>

© Copyright 2007-2012 QueryCAT
About • Webmasters • Contact