Cosmetic apparatus, namely, light based devices providing mainly pulsed light for performing non-ablative aesthetic skin treatment procedures; Electrically-powered apparatus for treating skin by applying low level light and sonic vibrations to the skin; Electronic aesthetic skin treatment devices using light emitting diodes, namely, infrared, red, orange, yellow, green, and blue wavelengths for generating light rays; Electronic light therapy apparatus for the skin; High intensity focused ultrasound (HIFU) apparatus for surgical use; Human face protectors, namely, transparent face shields for use in the medical and dental fields; Lasers for medical purposes; Lasers for the cosmetic treatment of the face and skin; Light-based medical devices, namely, a light emitting diode (LED) device for increasing the human body's own production of collagen; Light emitting devices, namely, lamps and LED devices for treatment of a variety of skin conditions; Light emitting diode (LED) devices for energy-efficient replacement of standard tungsten-filament lighting incorporated into hand-held medical instruments; Medical apparatus, namely, electric heating devices for curative treatment; Medical instruments for interstitial thermotherapy of biological tissue; Phototherapeutic apparatus for medical purposes, namely, a LED (light-emitting diode) light source for medical and aesthetic skin treatments; Thermotherapy apparatus for medical purposes