摘要:
A photovoltaic light guide solar concentration apparatus has a deflecting layer, a light-guide layer optically coupled to the deflecting layer, a secondary optic and a photovoltaic cell. The photovoltaic concentration apparatus has a central optical axis that, in operation, is parallel to incident sunlight. A deflecting layer includes a plurality of focusing elements symmetrically arranged with respect to the central optical axis. The light-guide layer is optically coupled to the plurality of focusing elements of the deflecting layer. The light-guide layer has a reflective surface and a plurality of opposite facets symmetrically arranged with respect to the central axis and focused sunlight from the deflection layer enters the light-guide layer and is directed and trapped by the reflective surface and the opposite facets and guided inside the light-guide layer towards an exit aperture through total internal reflections. A secondary optic is coaxially located with respect to the central optical axis and is coupled to the light guide layer the secondary optic that has at least one reflective surface. The secondary optic redirects the light towards the exit aperture. A photovoltaic cell is located at the exit aperture and on the central axis to receive sunlight from the secondary optic within an acceptance angle relative to the central axis.
摘要:
The present invention is that of a solar energy system that uses a light-guide solar panel (LGSP) to trap light inside a dielectric or other transparent panel and propagates the light to one of the panel edges for harvesting by a solar energy collector such as a photovoltaic cell. This allows for very thin modules whose thickness is comparable to the height of the solar energy collector. This eliminates eliminating the depth requirements inherent in traditional concentrated photovoltaic solar energy systems. A light guide solar panel has a deflecting layer, a light guide layer and a solar cell in optical communication with the light guide layer. The deflecting layer receives light at a first surface and inputs the light into the light guide layer. The light guide layer propagates the light to the solar cell, which is aligned generally parallel to the input surface.
摘要:
A light-guide solar concentrator that requires less precision to assemble and manufacture than some other two-layer solar concentrators has a light-condensing layer and an optical waveguide layer. The light-condensing layer includes a plurality of focusing elements for focusing incident sunlight and a plurality of corresponding collimating elements for collimating the light for output to the optical waveguide layer. The optical waveguide layer receives the collimated light and has a plurality of deflectors for redirecting the light for lateral transmission through the optical waveguide layer toward an exit surface. A secondary optic optically coupled to the exit surface can also be provided to redirect the light toward a light collection area where a solar energy collector can be placed to harvest the concentrated sunlight.
摘要:
A solar panel window for mounting to a building. The window has an interior pane and an exterior pane adjacent to each other. The exterior pane has a first ridged surface and the interior pane has a second ridged surface, which is complementary to the first ridged surface. The exterior and interior panes are secured together with their ridged surfaces facing each other. A plurality of photovoltaic solar cells are mounted on the first ridged surface of the exterior pane. The solar panel window allows light impinging thereon through a pre-determined viewing angle to be transmitted inside the building. Light impinging on the window outside the pre-determined viewing angled is directed to the plurality of solar cells.
摘要:
A photovoltaic solar-light concentration apparatus comprises a focusing layer having a plurality of focusing elements disposed adjacent to each other. A waveguide optically coupled and separated from the focusing layer has an exit surface and a plurality of deflecting elements. Each of the deflecting elements receives a band shaped solar-light beam from a corresponding focusing element. The deflecting elements are shaped and disposed so as to deflect and trap the solar-light beams inside the waveguide at an angle that insures total internal reflection. This concentrated solar-light is conveyed along a main direction perpendicular to the exit surface towards a single or multi junction photovoltaic cell coupled to the waveguide via a secondary optical element. The multi junction PV cell is customized to respond to the spectral light emerging from the waveguide as changed by the partial absorption through the optics that is molded of a plastic resin.
摘要:
The present invention is that of a solar energy system that uses a light-guide solar panel (LGSP) to trap light inside a dielectric or other transparent panel and propagates the light to one of the panel edges for harvesting by a solar energy collector such as a photovoltaic cell. This allows for very thin modules whose thickness is comparable to the height of the solar energy collector. This eliminates eliminating the depth requirements inherent in traditional concentrated photovoltaic solar energy systems.
摘要:
An energy generation and storage system that uses a buoyant balloon suspended in a fluid and connected by a tether to a reel. The tether is taut and keeps the balloon from rising due to the buoyant force. A motor can do work to wind the reel in such a way that the balloon is pulled down against the buoyant force. Energy can be extracted from the system by allowing the balloon to rise, pulling on the tether and turning the reel that is connected to a generator. The generator and the motor can be the same unit, or they can be independent units which both connect to the reel.
摘要:
A solar energy concentration system that uses a light-guide solar panel (LGSP) to trap light inside a dielectric or other transparent panel and propagates the light to one of the panel edges for harvesting solar energy by a collector such as a photovoltaic cell. This allows for very thin modules whose thickness is comparable to the height of the solar energy collector. This eliminates the depth requirements inherent in traditional concentrated photovoltaic solar energy systems.
摘要:
An illumination device having an optical waveguide stage to which is optically coupled a light-projecting stage. The illumination device accepts light from a small isotropic light source such as a light emitting diode or a bulb coupled to the optical waveguide stage. The illumination device spreads the light over a wide area while also collimating it to form a beam. Alternatively, the light beam can also be shaped in a variety of ways. The light-projecting stage and the optical waveguide stage are made of thin slabs of optically transmissive material.
摘要:
A solar panel assembly with a first group of spaced-apart solar energy collector modules and a second group of spaced-apart solar energy collector modules. The first and second groups lie in respective parallel planes, which define an air gap therebetween, and are staggered with respect to each other. The staggering of the groups allows for light not harvested by the first row to be harvested by the second row and provides a low dead-space characteristic for the solar panel assembly. The gap between the planes and the space between individual solar energy collector modules of a same group allow for improved heat dissipation in the modules and for the solar panel assembly to offer low resistance to wind.