A solar water heater includes a collector which has a substrate, a water chamber formed in or on the substrate and a toughended glass pane constituting the outside member of the water chamber. Bars extend across the pane to prevent it from bowing excessively due to water pressure in the chamber. An inlet valve is provided to allow water to be supplied to the chamber only when the solar energy is adequate to heat this water.

In certain astronomical applications, it is desirable to photograph (or otherwise observe) a celestial body (e.g., spectroheliograms of the sun) at a very narrow spectral bandwidth (i.e., substantially monochromatically). It is proposed to modify an otherwise conventional astronomical telescope so as to allow the simultaneous photographing (or other recording) of, for example, the sun at a plurality of different extremely very narrow wave bands (i.e., discrete, substantially monochromatic spectr...

A Solar Heater comprising a bank of panels each consisting of an inclined wooden frame supporting a heat collecting lamina and an adjacent backing surface the lamina collecting sunlight and the backing surface having a horizontal top edge over which liquid is supplied and is heated as it descends between the lamina and the backing surface.

The following invention discloses a solar collector for the collection and distribution of incident electromagnetic radiation. It is a collector which utilizes optic fibers as the direct means for solar energy concentration and collection. The collector is of a hemispherical design, or a variation thereof, allowing for the even collection of sunlight regardless of the sun's position relative to the horizon. Furthermore, the collector is of lightweight design and contains few internal parts. Thes...

Method for manufacturing sealed monolithic electrochemical systems, which method comprises the following method steps: application of electrolyte to a pattern of a porous structure located on a substrate, which structure constitutes a monolithic electrochemical electrode and comprises a working electrode, an insulating layer and a counterelectrode application of a sealing material surrounding said porous structure to form a laminate comprising a front plane consisting of said substrate and the p...

An environmentally friendly combination wind turbine and solar energy collector is provided. Solar panels are mounted on the surfaces of a wind turbine such that the combined energy from the wind turbine and the solar panels are provided as an output.

A solar receiver (1) for a solar-thermal power plant, comprising a receiver surface (2) facing towards the concentrated incident solar radiation (8) and including a plurality of mutually spaced absorber bodies (3), is provided with gas channels arranged between the absorber bodies (3) for supplying a gas or gaseous mixture (11) adapted to absorb solar radiation (8) to a region located in front of the receiver surface (2). In this region, the gas (11) will absorb a part of the incident solar radi...

Improved solar cell composed of an upper layer or mesh of a conductive nature, a lower layer or mesh also of a conductive nature, and a series of intermediate semiconductor layers composed of a mixture of silicon, mercury and silver nitrate.

A solar cell comprising a substrate of insulating material, a bottom side electrode layer formed on one surface of the substrate, a semiconductor photoelectric conversion layer formed on the bottom side electrode layer, a transparent top side electrode layer formed on the semiconductor photoelectric conversion layer and a non-transparent electrode comprising a plurality of strips of non-transparent conductive layers disposed separately from each other on the top side transparent electrode layer....

A solar collector consists of extruded hollow metal sections in two layers joined together by parallel longitudinal webs, in which the open ends of the hollow sections are connected together in such a way that the heat carrier flows sinuously through said sections.