Abstract:
The present invention relates to a greenhouse comprising outside walls provided with translucent surfaces (2) such that light may be received into the greenhouse (3) from at least two geographical directions, a roof structure (7) and a roof (6) provided with an insulating material portion. The invention is characterized in that the outside walls, in connection with the translucent surfaces (2), are provided with a light reflecting yard structure which resides below the translucent surfaces (2), above a ground surface (50), and extending away from the outside wall. The greenhouse (3) may further comprise vertically positioned light reflecting surface elements (40) and light reflecting shade elements (44) movable in a direction parallel with the transparent surfaces (2).
Abstract:
An array of outdoor lighting operates mainly in independent mode wherein sensing, communication, and control processes take place between the various lights of the array. Additional communication and control may occur between the array and a control station by means of a master/coordinating node that transmits and receives signals to the control station via call phone and/or satellite. The system may be tied to the internet for dissemination of data and/or data analysis gathered by means of the multiple poles/devices of the array. The independent- array and/or the master-to-station network and communications may be adapted for energy-saving processes; power-receiving from or power-providing to the grid, renewable power production and storage by means of solar panels and/or wind turbines and associated batteries or other storage equipment; and/or to Wi-Fi hot-spots, public safety alarms, information, or advertising to the public or information/data-analysis to customers. Preferred members of the array have solar- panel-powered lights, which may charge batteries and optionally supply energy to an electrical grid. In arrays cooperating with the grid, the grid may optionally charge the batteries of the array during off-peak hours. The preferred lights include LED modules that may be aimed to establish desired light patterns.
Abstract:
An arrangement for the collection of light within a designated frequency interval, such as visible light, comprising a light- refracting lens (5) and a first light transporting or light- transforming organ (1), wherein the first organ shows a light entry (Ia) that is arranged at or in the proximity of the focal point of the lens for light within the designated frequency interval. The arrangement comprises a frequency selective mirror (4) that is arranged to enable transportation of incoming light within the designated frequency interval to the light entry and to resist transportation of incoming light outside the designated frequency interval to the light entry. The light entry is encased in a body (3, 7) whose outer surface is separated from the focal point of the lens for light within the designated frequency interval.
Abstract:
An illumination system (1) is based on a window (21) having controllable transmittance and a light guide system (31) arranged for transferring light from a light guide input (33) to a light guide output (34). The light guide output (34) is located in a same space (50) as the window (21), but at a distance from the window (21). The illumination system (1) comprises means for balancing (40) the transmittance of the window (21) and a throughput of the light guide system (31). Preferably, the window (21) is an outer window, the light guide input (33) is arranged for gathering day light and the light guide output (34) is arranged to illuminate an area (52) within sight from the window (21). Preferably the transmittance of the window (21) and/ or the light throughput of the light guide system (31) are controlled. In further preferred embodiments, sensor (61, 64) based controlling is applied. In another aspect a method for illuminating a space (50) having a window (21) with controllable transmittance is presented.
Abstract:
The invention is directed at a method and system for controlling lighting in an enclosed space. A daylight harvesting apparatus for controlling an amount of light in an associated work area comprises a sensor assembly for sensing an amount of illumination in a proximity of the apparatus; a controller for receiving a value representing the amount of illumination and for determining an lamp control signal to be provided based on the amount of illumination; and an artificial light source for providing light, corresponding to the lamp control signal, to the work area.
Abstract:
An energy-saving illuminating lamp structure comprises a locating member (22) and light-emitting modules (30,40) consisting of a plurality of light emitting diodes connected in pararlel and in series to a power supply member (51). These light-emitting modules (30,40) are of multiple color systems different from each other and are arranged within the locating member (22). A current-limiting module (50) is connected to these multicolor light-emitting modules (30,40) to make the light-emitting modules and the power supply member (51) interconnect. The current-limiting module (51) can control and set the magnitude of the current allocated to the different light-emitting modules (30,40) so as to turn on them to emit light.
Abstract:
Dispositif de correction automatique de l'éclairage d'un espace fermé ou semi-fermé comprenant un luminaire, des LED's et au moins une feuille de verre transparente dans lequel des moyens de correction de la lumière émise par le luminaire sont asservis à la quantité et/ou la qualité de la lumière illuminant l'espace. Le dispositif s'applique à la réalisation de panneaux d'éclairage, de toits automobile, de vitrages de toit de serre et de miroirs lumineux.
Abstract:
A micro-prism plate for reflecting solar rays comprises a plurality of column micro-prisms provided on one surface in parallel. The cross section of each column micro-prism is an isosceles triangle with the vertex angle of 90 degree and the base angle of 45 degree. A control means for adjusting the micro-prism plates comprises a reversible motor, a plurality of drive wheels and a holding frame for holding the micro-prism plates. The drive wheels comprising belt pulleys or gears are connected with the output shaft of the reversible motor and the pivot shafts of the micro-prism plates to drive the micro-plates synchronously rotated. The control means further comprises a sensor system so as to rotate the pivot shafts of the micro-prism plates or keep the micro-prism plates immovable depending upon the projecting location of the solar projector on the solar cell.