Candela was chosen so that the new definition would precisely match the old definition. Although the candela is now defined in terms of the second (an SI base unit) and the watt (a derived SI unit), the candela remains a base unit of the SI system, by definition. If a source emits a known luminous intensity "I" (in candelas) in a well-defined cone, the total luminous flux "Φ" in lumens is given by where "A" is the "radiation angle" of the lamp—the full vertex angle of the emission cone. For example, a lamp that emits 590 cd with a radiation angle
Candela Corp standard pulsed dye laser for treatment of a wide variety of vascular lesions and cosmetic applications, including port wine stain birthmarks, facial redness, leg and facial veins and skin rejuvenation by wrinkle reduction, scars, warts and hemangiomas. Candela Corp Candela Laser Corporation is an American laser company that develops and sells medical lasers for cosmetic use located in Wayland, Massachusetts. Candela Laser Corporation was founded in 1970. Candela has begun to extend its technology to treat a wider range of cosmetic conditions including the treatment of acne and acne scars, minor wrinkles, and even hair removal. This effort is part