Candela of a single point light source of intensity "I", at a distance "r" and normally incident, this reduces to Candela The candela ( or ; symbol: cd) is the base unit of luminous intensity in the International System of Units (SI); that is, luminous power per unit solid angle emitted by a point light source in a particular direction. Luminous intensity is analogous to radiant intensity, but instead of simply adding up the contributions of every wavelength of light in the source's spectrum, the contribution of each wavelength is weighted by the standard luminosity function (a model of the sensitivity
Vincent Candela Vincent Candela Vincent Philippe Antoine Candela (; born 24 October 1973) is a former French footballer. With the French national team, Candela won the 1998 FIFA World Cup, as well as UEFA Euro 2000. Candela was a quick, offensive-minded, and technically skilled left wingback, who was effective at joining the attack as well as being capable in defence, due to his intelligence and tenacity. Although he preferred playing on the left flank, he was naturally right-footed, and was also capable of playing on the right, both as a full-back, and as a winger, and was an accurate crosser and set-piece