Patent ID: 9335025
Filing Date: 2016-05-10
CPC Classification: F21S,F21V,F21Y,G02B

Claim Text:
1. A daylight illumination apparatus comprising: a daylight collector for collecting daylight; a light guide for receiving the collected daylight, and for guiding and outputting a first portion of the daylight for an illumination location to be illuminated along an optical path, wherein a second portion of the daylight is absorbed by the light guide; and a photoluminescent material for emitting photoluminescent light for illuminating the illumination location when the photoluminescent material absorbs a part of the first portion of the daylight, wherein the photoluminescent material is arranged within the optical path and adapted such that the photoluminescent light compensates for the absorption of the second portion of the daylight by the light guide, and wherein the apparatus produces a combination of a remainder of the first portion of the daylight and said photoluminescent light such that the combination is more similar to the collected daylight than the first portion of the daylight output by the light guide.