Abstract:
Optical elements and systems are disclosed that can be incorporated into buildings to prevent beam sunlight from entering through apertures of the building while allowing diffuse skylight to enter the building through the apertures. The optical system comprises optical elements configured to admit diffuse skylight through an aperture in the building envelope, while reflecting away the beam sunlight incident on the aperture in the building envelope. The apertures can be, for example, windows in walls or skylights in roofs of the building envelope. The optical system works for both windows in the walls and skylights in the roof, with somewhat different configurations for those two parts of the building envelope.
Abstract:
According to embodiments of the present invention, a lighting apparatus is provided. The lighting apparatus includes a light collection arrangement adapted to collect sunlight incident on the light collection arrangement and focus the collected sunlight to provide a focused light, and a light guiding arrangement optically coupled to the light collection arrangement to receive the focused light, wherein the light guiding arrangement comprises an intensity tracking device configured to track an optical path of the focused light that is variable corresponding to a change in an optical path of the sunlight incident on the light collection arrangement for propagation of the focused light through the light guiding arrangement. According to further embodiments of the present invention, a method for forming a lighting apparatus and a method for controlling a lighting apparatus are also provided.
Abstract:
The solar illumination distribution system (10) uses a series of parabolic reflectors (12, 14, 42, 44, 46) and other optical components to direct and distribute solar radiation onto a desired surface (G), such as for illuminating a stadium or arena as well as providing light for the growth of natural turf in desired locations within the stadium or arena. A primary parabolic reflector (12) and a secondary parabolic reflector (14) focus solar radiation onto one end of a fiber optic bundle (24), which transmits the solar radiation to a desired location. At the desired location, the light transmitted through the fiber optic bundle (24) is distributed through a plurality of fiber optic cables (36, 38, 40) to a plurality of tertiary parabolic reflectors (42, 44, 46) to illuminate the desired surface (G).
Abstract:
A daylight illumination system for integration into a building or larger vehicle comprises a translucent facade element (800) containing a glass sheet and a light redirection element (302 or 708), and a light transport channel (801) for guiding light about horizontally into an interior of the building, the light transport channel comprising one opening attached to the interior side of said facade element and at least one opening towards the interior of the building, characterised in that the light redirection element (302 or 708) is formed as a structured polymer film or sheet attached to a glass sheet of the facade element (800) and is configured for changing the direction of incident light into the about horizontal light transport channel.
Abstract:
Un dispositif de positionnement d'un faisceau transmetteur d'énergie solaire par rapport à un concentrateur solaire parabolique a simple concentration permettant de concentrer la lumière solaire et de transmettre les rayons concentrés filtrés sous forme d'onde visible de l'extérieur à l'intérieur via un faisceau de fibres optiques pour l'éclairage naturel des zones sombres ou maies orientées dans le bâtiment. Ce dispositif est composé principalement d'un tube (1) de positionnement du faisceau de fibres optiques, d'une pièce de fixation (2) sur la parabole et d'un système de triple filtration des rayons IR et UV. Le dit dispositif permet de palier au problème d'alignement du faisceau de fibres optiques par rapport à l'angle d'incidence des rayons concentrés au niveau focal, la protection des fibres optiques par une triple filtration des rayons concentrés et permet aussi de fournir une lumière uniforme à l'intérieur en répartissant les rayons filtrés uniformément sur l'entrée du faisceau de fibres optiques.