Patent ID: 9423081
Filing Date: 2016-08-23
CPC Classification: F21K,F21S,F21Y,H05B,Y10S

Claim Text:
1. An illumination assembly capable of emitting an output light comprising: a housing; and a light source being two different types of LEDs wherein one type of LED is one or more white LEDs emitting a first light along a first path and the other type of LED is 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) each of the one or more white LEDs has a correlated colour temperature of 4500 to 8000 k, (iv) the colour rendering index Ra of the output light is 85 or more, (v) the colour rendering index R9 of the output light is 85 or more, (vi) the output light has a correlated colour temperature in the range 3000 to 6700K, and wherein (vii) the intensity of the first light from the one or more white LEDs is variable relative to the intensity of the second light from the one or more red-orange LEDs.