Devices and methods for collecting daylight in clear and cloudy weather conditions

摘要

Lighting devices and methods for providing daylight to the interior of a structure are disclosed. Some embodiments disclosed herein provide a daylighting device including a tube having a sidewall with a reflective interior surface, a light collecting structure, and a light reflector positioned to reflect daylight into the light collector. In some embodiments, the light collector is associated with one or more light-turning and/or light reflecting structures configured to increase the amount of light captured by the daylighting device. Optical elements may allow for the absorption and/or selective transmission of infrared light away from an interior of the daylighting device.

主权项

1. A passive light-collecting device for directing sunlight into a building interior, the device comprising:
a top cover portion; a base aperture having a width and configured to be disposed adjacent to an opening of a building; a prismatic element comprising a prismatic surface and a surface opposite the prismatic surface, wherein the prismatic element is configured to turn sunlight incident on the top cover portion towards the base aperture, and wherein the surface of the prismatic element opposite the prismatic surface is parallel to the top cover portion; a substantially vertical portion having a height that extends between the top cover portion and the base aperture and is configured to receive sunlight; and a reflector associated with the vertical portion configured to reflect at least a portion of received sunlight towards the base aperture.