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LASER HAIR REMOVAL EXAM QUESTIONS WITH VERIFIED ANSWERS
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LASER HAIR REMOVAL EXAM QUESTIONS WITH VERIFIED ANSWERS
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LASER HAIR REMOVAL EXAMQUESTIONS WITH VERIFIED
ANSWERS
LASER - -Light amplification by the stimulated emission of radiation
-Light consist of many wave lengths - -Laser consist of just one
-The FDA approved lasers for permanent hair reduction - -In. 1997
-When was the Ruby crystal laser invented - -In 1960
-The Ruby crystal uses what wavelength - -694 nm
-In 1960 the ruby crystal was invented and used for - -Dermatology and
ophthalmology
-ELECTROMAGNETIC SPECTRUM of RADIATION - -Visible and invisible light
-The light we see belongs to what spectrum - -ELECTROMAGNETIC
SPECTRUM of RADIATION
-The spectrum of light is arranged by its frequency of its waves - -Longest,
lowest waves to shortest highest waves. Radio waves are longest and
gamma waves are shortest
-Wavelength - -Is the measurement between the distance of two
consecutive peaks in a wave ( peak or troughs )
-Short wave length - -High frequency
High intensity
High melanin absorption
-Long wave length - -Low frequency
Low intensity
Low melanin absorption
-Ruby laser - -694nm
-Alexandrite - -755nm
-Diode - -800nm , 810nm
, -Nd Yag - -1064nm
-Ruby and alexandrite - -Short wave length
High frequency
High intensity
-Nd Yag - -Long wavelength
Low frequency
Low intensity
-Nanometers
Nm - -How a Wavelength is measured
-Infrared - -Lasers are in this wavelength
-Radio wave have the longest wavelength in the spectrum - -Radio waves
-Infrared light ( IR ) - -Is invisible and thermal
-Infrared energy - -Felt as heat on the skin and can be captured in thermal
imaging
-Longest wavelength visible light - -Red
-Shortest wavelength viable light - -Violet
-Some laser hair removal devices are in the red light and some are in the
near infrared part of the electromagnetic spectrum - -
-Ultraviolet light - -Highly energetic with shorter wavelengths than visible
light
-UVA rays - -95% of UV radiation that reaches the earth
-UVA rays - -Penetrate the skin more deeply and are dominate tanning rays.
Cause photo aging and skin cancer
-UVB rays - -Cause skin burns and effect the epidermis. Also cause cancer
and photo aging
-UVC RAYS - -Rays are absorbed by the ozone layer and don't reach the
earth
-Gamma rays - -Have the shortest most powerful wavelength and the most
energetic form of light
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