Some embodiments provide a daylighting apparatus comprising an internally reflective tube configured to direct daylight from a first end of the tube to a second end of the tube opposite the first end. A diffuser can be positioned at the second end of the tube. The diffuser can comprise a first optical structure configured such that, when the daylighting apparatus is installed with the first end positioned outside a room and the second end positioned to provide light to the room, a reflected portion of the daylight is directed towards at least one upper region (e.g., a ceiling or upper wall surface) of the room and a transmitted portion of the daylight is directed towards at least one lower region (e.g., a floor surface) of the room.

Direct and indirect light diffusing devices and methods

Some embodiments provide a fenestration apparatus including at least one glazing pane capable of being installed in an opening of a building envelope and a tessellated structure disposed adjacent to the at least one glazing pane. The tessellated structure can include at least one partition having a first face and a second face. The at least one partition can define a plurality of spatially separated cells within a substantially contiguous region of the opening. Each of the plurality of spatially separated cells can have a cell width and a cell depth. Each of the plurality of spatially separated cells can be at least partially surrounded by the first face of the at least one partition, the second face of the at least one partition, or a combination of the first face and the second face of the at least one partition.

Thermally insulating fenestration devices and methods

Lighting devices and methods for illuminating the interior of a building with natural daylight are disclosed. In some embodiments, a daylighting apparatus includes a tube having a sidewall with a reflective interior surface, an at least partially transparent light collector with one or more light turning elements, and a light reflector positioned to reflect daylight into the light collector. The one or more light turning elements can turn direct and indirect daylight into the tube so that it is available to illuminate the building. In some embodiments, the tube is disposed between the light collector and a diffuser positioned inside a target area of a building. In certain embodiments, the tube is configured to direct at least a portion of the daylight transmitted through the light collector towards the diffuser.

Daylight collection systems and methods

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.

High aspect ratio daylight collectors

Certain disclosed embodiments provide internally-reflective tube assemblies for use in a tubular daylighting device configured to direct daylight into an interior of a building when installed on a roof of the building. A tube assembly may include multiple tube segments including connection projections, such as hook-type structures, for weaving or otherwise connecting and/or securing tube segments together. In some embodiments, sidewalls of tube segments connected together are substantially parallel to one another at or near the connection region.

Daylighting tube segment connection systems and methods

The invention discloses a multifunctional environmental protection sunshine collection method, a device and application thereof. The multifunctional environmental protection sunshine collection method comprises the following steps: sunshine is highly compressed into an ultrahigh light pillar, after being cooled, the light pillar is sent into a spectrum separation and deployment storehouse and then the incident light is deployed, separated, combined, and the like; the ultra-intense visible light is led into a light pipe, optical lines are transmitted and then uniformly diffused. The invention has the advantages that according to statistics made by experts, electric consumption on daytime illumination occupies more than 40% of electric consumption on illumination, therefore, employing the multifunctional environmental protection sunshine collection device can use free sunshine light instead of electric light illumination during daytime; the device is the popularized, only China can save about 82 billion degrees of electricity per year, calculated as 0.8 Yuan per degree, 65.6 billion Yuan can be saved per year, besides, the device also has no pollution and can reduce the emission and pollution brought by generating electricity.

Zhijun Zhou

Papers

Multifunction green environment protection sunlight acquisition method, apparatus and use