Patent ID: 8672507

Claim:
An illumination assembly capable of emitting an output light comprising: a housing; and one or more white LEDs emitting a first light along a first path and one or more red-orange LEDs emitting a second light along a second path, wherein the one or more white LEDs and the one or more red-orange LEDs are mounted in the housing such that the first light and the second light are mixed to form the output light transmitted along a third path or to form the output light at a field position, wherein (i) the chromaticity coordinate X of each of the one or more white LEDs is in the range 0.290 to 0.370, (ii) the chromaticity coordinate Y of each of the one or more white LEDs is in the range 0.270 to 0.400, and (iii) wherein each of the one or more white LEDs has a correlated colour temperature of 4500 to 8000K, and wherein the colour rendering index Ra of the output light is 85 or more and the colour rendering index R9 of the output light is 85 or more, and the output light has a correlated colour temperature in the range 3000 to 6700K.