Light Therapy course book Teachers Edition英文电子书.pdf

Low Level Light Therapy Course (Photorejuvenation) Prepared by Peter Nesbitt All rights reserved, 2006 1 Photorejuvenation Course Book Instructor’s Edition This is the same course book given to students. Questions from tests are in the particular sections in red and are only in the Instructor’s edition. Chapters 1. Definitions, Basic History of Light Therapy and Knowledge of Electromagnetic Spectrum 2. LED, IPL, and Laser Treatments 3. Cosmetic Light Therapy 4. Safety Considerations 5. Serums and Products Used With Light Therapy 6. Combining Treatments 7. Treatment Methods and Protocols (This manual and accompanying materials may be used and modified for educational purposes but may not be otherwise distributed or sold. Advanced Therapeutics, LLC retains all rights to these materials.) 2 Chapter 1 1) Visible Light: light that is within the visible spectrum, 400nm (violet) to 700nm (red) 1. Visible light is light that humans can see and is between 400 and 700 nm wavelength. True False 2) Infrared Light: light in the invisible spectrum below red, from 700nm to 2,000nm 2. Infrared light is between 700 and 2000 nm wavelength and we can see it. True False 3) Frequency: number of cycles per second measured in Hertz (Hz). 3. Frequency is measured in Hertz (Hz). True False 4) Coherency: wavelengths of light traveling in phase with one another. 4. Coherency is when wavelengths of light are traveling in phase with each other. Lasers can produce this type of light. True False 5) Monochromatic: light that is of one color, or one wavelength. 5. Monochromatic is when there are multiple wavelengths of light. True False 6) Collimation