The present subject matter comprises a simple, passive skylight dome with relatively tall partially vertical sides comprising partially transparent material which diffuses the transmitted light, and a mostly opaque sun shade near the top of the relatively tall partially vertical sides. The partially vertical sides are able to better intercept sunlight from low sun elevation angles than conventional horizontal skylights. The mostly opaque sun shade is able to block sunlight from high sun elevation angles to prevent such sunlight from entering the building below the dome. By enhancing the collection of low-sun-elevation-angle light, the subject matter improves the daylight performance of the skylight early and late in the day, and all day in the winter months. By reducing the collection of high-sun-elevation-angle light, the subject matter reduces the solar heat gain near solar noon in the summer months, thereby reducing air conditioning loads and related costs.

The present subject matter comprises a simple, passive skylight dome with relatively tall partially vertical sides comprising partially transparent material which diffuses the transmitted light, and a mostly opaque sun shade near the top of the relatively tall partially vertical sides. The partially vertical sides are able to better intercept sunlight from low sun elevation angles than conventional horizontal skylights. The mostly opaque sun shade is able to block sunlight from high sun elevation angles to prevent such sunlight from entering the building below the dome. By enhancing the collection of low-sun-elevation-angle light, the subject matter improves the daylight performance of the skylight early and late in the day, and all day in the winter months. By reducing the collection of high-sun-elevation-angle light, the subject matter reduces the solar heat gain near solar noon in the summer months, thereby reducing air conditioning loads and related costs.

A skylight shade device and skylight mounted on a roof of a building includes a roof and a skylight installed on the roof. A shade element including photovoltaic cells is positioned to occlude at least a portion of high angle sunlight through the skylight dome without occluding low angle sunlight through the skylight dome.

Certain example embodiments of this invention relate to articles including anticondensation and/or low-E coatings that are exposed to an external environment, and/or methods of making the same. In certain example embodiments, the anticondensation and/or low-E coatings may be survivable in an outside environment. The coatings also may have a sufficiently low sheet resistance and hemispherical emissivity such that the glass surface is more likely to retain heat from the interior area, thereby reducing (and sometimes completely eliminating) the presence condensation thereon. The articles of certain example embodiments may be, for example, skylights, vehicle windows or windshields, IG units, VIG units, refrigerator/freezer doors, and/or the like.

A roof flashing can include a bottom half and a top half. The two halves can each have a plate and a neck portion projecting away from the respective plate. The neck portions define portions of an aperture configured to encircle and seal against a post projecting away from a roof. At least part of the first neck portion can be slidably receivable in the second neck portion and the two portions can define a neck when the bottom half and the top half are engaged with one another.

A light fixture includes a housing with a skylight aperture, and one or more louver blades spanning the skylight aperture. When open, the one or more movable louver blades block little of the light passing through the skylight aperture; in intermediate positions, the louver blades block a portion of the light; when closed, the louver blades block most light from passing through the skylight aperture. The light fixture also includes: a dimmable artificial light source configured to project artificial light toward the illuminated space; a light sensor that detects light illuminating the space; and a control unit that is integrated with the housing and communicates with the light sensor. The light sensor detects intensity and chromaticity information of the light illuminating the space. The control unit controls position of the louver blades and brightness and chromaticity of the dimmable artificial light source, in response to the light sensor.

In the screening arrangement (10), the screening body (15) is rolled-up, folded-up or collapsed in a non-screening position in a combined space of a top casing (11) and a receiving space (RS) in the bottom element (14). The top casing (11) comprises a front rail (114), a top cover portion (113), and a back cover portion (115). The bottom element (14) is connected to the bottom portion (154) of the screening body (15) and comprises a front (140), an upwards facing surface (145), and a back portion (149). The back portion (149) is configured to accommodate one or more solar panels (27) on an exterior side, facing the exterior in a mounted condition of the screening arrangement (10). The top edge (149a) of the back portion (149) of the bottom element (14) is located at a higher level than the upwards facing surface (145), and the receiving space (RS) is delimited in the longitudinal direction (L) by a first plane (P1) substantially parallel with a plane spanned by the width direction (W) and the depth direction (D), and a second plane (P2) parallel with the first plane (P1) and located at a higher level than the first plane (P1). The first plane (P1) is defined by a lowest point on the upwards facing surface (145), and the second plane (P2) is defined by a top edge (140a) of the front (140) or a top edge (149a) of the back portion (149) of the bottom element (14), whichever is located at the highest level as seen in the longitudinal direction (L), and at least the top portion (151) of the screening body is located to the exterior of and above a bottom edge (114b) of the front rail (114) of the top casing (11) such that a majority of the rolled-up, folded-up or collapsed screening body (15) is accommodated in said receiving space (RS) and the top casing (11) in the non-screening position.

An illumination system comprising a lighting module with a plurality of LEDs, a flexible optically transmissive sheet disposed in an energy-receiving relationship with the lighting module, and broad-area reflective surface configured to reflectively scatter light. The flexible optically transmissive sheet has a laminated structure with a generally rectangular shape and a thickness between 200 micrometers and 1 millimeter. The laminated structure comprises a first layer of an optically transmissive material, a second layer of an optically transmissive material, a first regular array of linear channels formed in the first layer extending parallel to one another between two edges of the flexible optically transmissive sheet, and a second regular array of linear channels formed in the second layer extending at an angle with respect to the first regular array of linear channels. The linear channels define side walls configured to reflect light using total internal reflection.

A skylight for a building includes a solar panel arranged within the skylight, the solar panel comprising one or more photovoltaic cells to collect direct radiation from rays of sunlight for conversion to electrical power, and an optical element to receive the direct radiation and refract it to the solar panel, and to receive the direct radiation and diffuse radiation scattered from the rays of sunlight and refract the direct radiation and the diffuse radiation through the skylight, bypassing the solar panel, to provide daylighting in the building.

A fenestration system includes one or more of a light modulation controller or ventilation modulation controller. The light modulation controller is in communication with at least one light modulation element of a fenestration assembly having a frame and a panel. The light modulation controller includes a light prescription module configured to provide a specified light prescription for the building interior. A lighting difference module is configured to determine a prescription difference between the specified light prescription and ambient light. A dynamic light module of the light modulation controller operates the at least one light modulation element according to the prescription difference. The ventilation modulation controller is in communication with at least one operator configured to open and close the panel. A ventilation prescription module provides a specified ventilation prescription for the building interior, and a dynamic ventilation module implements panel closing and opening according to the specified ventilation prescription.