Patent ID: 8083363

Claim:
A daylighting apparatus comprising: a tube having a sidewall with a reflective interior surface, the tube disposed between a transparent cover configured to receive daylight and a diffuser configured to be positioned inside a target area of a building, the tube configured to direct the daylight transmitted through the transparent cover towards the diffuser; and an auxiliary light fixture comprising a lamp configured to provide illumination to the interior of the tube by emitting a cone of light, the lamp positioned such that light exiting the lamp along the angular center of the cone of light propagates such that the light is incident on a surface other than the diffuser before propagating to the diffuser; wherein the auxiliary light fixture further comprises a light control surface extending from the sidewall of the tube and configured to redirect at least a portion of light emanating from the lamp towards the diffuser; wherein the light control surface comprises a reflector; and wherein the light control surface comprises a prismatic film configured to reflect the light exiting the lamp and to transmit daylight propagating through the tube from the direction of the transparent cover.