Abstract: A power generating optical filter specially tuned to (1) transmit at least portions of selected wavelengths of incident light and (2) generate electrical power from absorbed portions of selected wavelengths of incident light.

Abstract: This invention relates to a ski boot provided with self-powered electric and/or electronic devices. The surface of the boot is covered by a plurality of solar cells, which convert the solar radiation into electric energy which acts to integrate a series of storage batteries contained in a box-type body rigidly attached, in a preferably removable manner, with the footwear structure. The series of storage batteries may be recharged by normal external source of electric energy, while the solar cells have the function of integrating the charge allowing a longer operation of the devices. The electric devices are of the resistive controlled type, for heating the footwear while those electronic consist of means for controlling the correct closure of the boot and/or means for control of the efforts to which the limb of the skier is subjected during use. Such control devices may conveniently cooperate with safety means provided in the ski to determine opening of the safety bindings in case of dangerous overloads.

Abstract: An optical power distribution system for supplying power to low power electrical devices includes an electrically powered source of optical radiation the output of which is applied to a photovoltaic cell array arranged on the device to be powered and electrically connected thereto.

Abstract: A photo electric charger device includes a solar-electric panel for generating a charging current for a chargeable battery. Mounted on a common support member with the solar-electric panel are a pair of electrical contacts connected to receive the voltage output of the panel therebetween. These contacts are mounted on a pair of support arms which support a battery powered device having chargable batteries and a charging circuit for such batteries. A support bracket is provided for this device, the bracket having contacts which mate with and provide electrical contact with the contacts carrying the output of the solar panel which are on the support arms. Thus when the battery powered device is suspended on the support arms, current from the solar panel will feed through the contacts to charge the battery.

Abstract: An apparatus for mounting solar cells and the like on a supporting structure, the apparatus having a panel composed of an open textured, electrically non-conductive, non-woven web adapted to receive a solar cell, a plurality of mounting assemblies, each composed of a first element adapted to be affixed on the supporting structure and a second element releasably engageable therewith adapted to be attached to the panel, the mounting assemblies attached to and arranged on the supporting structure in spaced relation to each other and retaining the panel and the solar cell borne thereby in spaced relation to the supporting structure to define an air passage therebetween, and a frame secured on the marginal edges of the panel and incorporating channels for housing the electrical cables of the solar cell.

Abstract: An air spoiler apparatus with solar cells includes an air spoiler wing mounted on an outer surface of a vehicle body, solar cells mounted on an upper surface of the air spoiler wing, a running detector for detecting a running state of a vehicle, and an elevation angle adjustment unit of the air spoiler wing. The air spoiler elevation angle adjustment unit adjusts an elevation angle of the air spoiler wing within select angular ranges to increase power generation efficiency of the solar cells during parking, stopping, low-speed or high speed running represented by the running state detected by the running detector. During high speed operation the angular range is restricted to an optimum range for aerodynamic efficiency.

Abstract: A self-charging battery comprising a rechargeable nickel-cadmium cell and a solar electric panel. Sunlight passing through the transparent housing excites the solar panel which then supplies recharging current to the nickel-cadmium cell.

Abstract: A plurality of photovoltaic devices (e.g., solar cells) connect with each other and form a photo-electric conversion apparatus. The photovoltaic devices concerned are so connected with each other that when a given pattern of light is irradiated upon the photo-electric conversion apparatus concerned, the electrical output generated when the whole of it is irradiated is smaller than that generated when some parts of it are irradiated. Since an electronic system equipped with this apparatus as a power supply can be designed to work when the apparatus is irradiated with such a pattern of light that irradiates only a part of the apparatus, an electronic system having such an identifying faculty can be made easily.Further, an apparatus like this type may be made by connecting the elements of this apparatus in series or in reverse direction to form units, and by connecting this plurality of units in series and/or in parallel.

Abstract: A power generating optical filter specially tuned to (1) transmit at least portions of selected wavelengths of incident light and (2) generate electrical power from absorbed portions of selected wavelengths of incident light.

Abstract: A retractable power supply including a solar cell for converting incident radiation to electrical energy and a base member for (1) storing the solar cell when said cell is not operatively deployed and (2) supporting the solar cell when said cell is in an operative condition. A rechargeable battery pack may be included in the base member for storing electrical energy generated by the solar cell. In one particularly noteworthy embodiment, the solar cell may be employed as a retractable window shade.

Abstract: A modular ventilation system powered by solar energy is disclosed for installation in trailers or other vehicles that have large storage compartments. The system essentially comprises a sectionalized cabinet that contains and supports fan motors, solar batteries, a voltage regulator and microprocessor; an air plenum having a lower air intake and an upper opening adapted for fluid connection with those sections of the cabinet that house fan motors; and a solar panel array that mounts in the horizontal top panel or roof of a trailer-vehicle.

Abstract: Lantern employs clear lens protective cover around the drum lens and a clear dome over the solar panel mounted above the lens. A heavily damped gimbal supported by the lantern housing mounts the lens, lampchanger, and flasher above a bank of batteries suspended from the gimbal. The weight of the batteries aids in providing a righting moment to the gimbal when the marine buoy, atop of which the lantern is secured, is tilted or inclined for sustained periods due to current and/or wind. Interior of the lantern is readily accessible by merely pivoting upwardly an annulus supporting the lens cover, solar panel, and dome.

Abstract: A control device for a variable speed electric motor determines a quantity of light received from a short-circuit current of a solar battery, and also determines a cell temperature of the solar battery from an open circuit voltage, thereby producing a current command signal permitting an optimum load current for an output condition of said solar battery.

Abstract: A photovoltaic panel for converting solar energy into electrical energy output having a voltage and a current and a load requiring a starting current which is higher than a minimum running current. The output of the photovoltaic panel is detected by a sensor and circuitry is responsive to the sensor for applying the output to the load in pulses at a frequency which varies inversely with the maximum available power from the panel.

Abstract: An electrical thermometer having a digital display comprises a flat, rectangular casing a principal face of which is provided with the digital indicating device, and a measuring probe which is connected with a voltage-fed electrical building block of an electronic analyzer and display unit. The thermometer is devised to be smaller and more compact than known devices and affords a safe operation even under disadvantageous environmental conditions. To this end, the voltage source of the electronic analyzer and display unit block is a solar cell arranged in a principal face of the casing. The presence of this solar cell affords a particularly advantageous permanent guarantee of the energy supply. Moreover, it offers the advantage of a construction of the thermometer casing which is free from the need for a receptacle opening for a battery and can thus be manufactured water-tight in a simple manner.

Abstract: As assembly for the merchandising of products utilizing a solar cell mounted directly onto an incandescent or fluorescent light bulb so that the cell receives the light directly from the light bulb. A d.c. motor is electrically connected to the solar cell, the motor shaft extending downwardly. A substantially planar sign member having word indicia formed thereon may be operatively interconnected to the motor shaft so that it rotates in response to motor shaft rotation. A plurality of flexible clips may be provided for mounting the solar cell directly to the light bulb, or globe for the light bulb. Alternatively, a fan blade may be mounted to the motor shaft.

Abstract: A device for packaging at least one electronic component comprises a housing for storing the at least one electronic component, and connecting terminals for electrically connecting the at least one electronic component to one or more other electronic components, the connecting terminals engaging elastically the at least one electronic component on the housing.

Abstract: An AC solar cell is provided by a pair of PN junction type solar cells connected in antiparallel between a pair of main terminals, and means for directing light alternatingly on the PN junctions to generate an alternating potential across the main terminals. AC electrical energy is generated without a DC to AC converter.

Abstract: Disclosed is a solar cell-powered calculator or the like which features an integrated unit comprising solar cells and a protective filter which provides easier handling and minimum damage to the solar cells during handling processes. Such a solar cell-powered appliance easily implements electrical connection either between the solar cells themselves or between solar cells and peripheral electronic parts merely by placing the cell-filter integrated unit inside the cabinet in a simple process. In addition, such an advantageous configuration makes it possible to replace the solar cells using an extremely simple process.

Abstract: An aroma generator that is automatically activated when one turns on an electric light bulb in the room in which the generator is installed, the generator then functioning to discharge an air current into the room conveying an aromatic vapor which modifies the prevailing atmosphere. Included in the generator is a motor-driven fan that forces air through an air permeable cartridge containing an aroma supply, the motor being powered by a solar cell assembly mounted adjacent the bulb. The arrangement is such that when the bulb is switched on, the resultant cell output is sufficient to power the motor and activate the generator, the cell output, in response to ambient light being insufficient for this purpose, whereby the operation of the generator is coordinated with that of the bulb without any wire connection therebetween.

Abstract: A self-charging battery comprising a rechargeable nickel-cadmium cell and a solar electric panel. Sunlight passing through the transparent housing excites the solar panel which then supplies recharging current to the nickel-cadmium cell.

Abstract: An intermittently operable non-fuel-consuming power generator, such as a photovoltaic array or a wind generator, is connected through a control circuit to a battery for for charging the same and supplying current to a time-wise substantially constant electrical load. An electrical generator, connected to an intermittently operable prime mover, charges the battery and supplies current to the electrical load when the prime mover is operated. A sensor circuit senses at least one electrical parameter, such as a failure of the power generator to produce current, for controlling the operation of the prime mover (i.e., starting of the prime mover). The sensor circuit also senses a second electrical parameter, such as the charge level of the battery. The prime mover is made operational only if the battery capacity is less than a predetermined threshold level when the power generator fails to produce current.

Abstract: A battery energizer for button batteries, such as zinc-silver oxide or zinc-mercuric oxide batteries, that are normally considered unchargeable, provides for energizing of the batteries in a safe and simple manner. A solar cell having a maximum current output (e.g., 20 milliamps) is operatively connected to terminals for releasably receiving a button battery. A light emitting diode, or like indicator, provides an indication of when the battery is fully energized, and additionally assists in preventing overenergization of the battery. The solar cell, terminals, LED, and the like can be mounted on a nonconductive material mounting plate which is mounted by a suction cup and hook to a window, adjacent a light bulb, or the like. A battery charger for conventional dry cell rechargeable batteries (such as nickel-cadmium batteries) utilizes the solar cells, and LED, and a zener diode connected in parallel with terminals.

Abstract: An assembly for the merchandizing of products utilizing a solar cell mounted directly onto an incandescent or florescent light bulb so that the cell receives the light directly from the light bulb. A d.c. motor is electrically and physically connected to the solar cell, the motor shaft extending downwardly. A substantially planar sign member having word indicia formed thereon is operatively interconnected to the motor shaft so that it rotates in response to motor shaft rotation. The interconnection preferably is provided by a piece of metal foil extending vertically and attached to the motor shaft, and a slip swivel connector between the metal foil and the sign member which allows some slippage between the foil and the sign member so that the sign member rotates more slowly than the foil--slow enough for appropriate normal recognition of the word indicia thereon. A plurality of flexible clips may be provided for mounting the solar cell directly to the light bulb, or globe for the light bulb.

Abstract: In a bicycle having an electric motor drive including a battery power source, an apparatus for automatically recharging the battery comprising at least one photovoltaic panel secured to the wheel of the bicycle. The conductors of the photovoltaic panels are electrically connected to annular rings secured to the wheels so that a plunger supported adjacent the annular ring can transfer the charge applied to the ring to appropriate wire conductors at a junction box which applies the current to the battery and the electric motor.

Abstract: A solar-powered lighting system suitable for signs or hoardings (10), navigation beacons or as an emergency supply for hotels, cinemas, hospitals or other services.The system incorporates solar cell arrays (17) which generate electricity which is stored in batteries (22). A sensing circuit (14) selectively connects the batteries (22) to lights (14). A timing/switching circuit (32), (32a) may be provided to selectively connect the lights (14) to a mains supply (30).

Abstract: A photovoltaic-storage battery device is disclosed, which comprises a substrate having a pair of major surfaces, a photovoltaic element formed on one major surface of the substrate and including a pair of opposing electrodes and a photoelectric film intervening between the pair of opposing electrodes and a storage battery element formed on the other major surface of the substrate and including a second pair of opposing electrodes which are connectable to the first-mentioned pair of opposing electrodes, respectively, and an electrolyte intervening between the second-mentioned pair of opposing electrodes.

Abstract: A solar power station for providing illumination or a signal generally including a storage battery-powered signaling element, a solar generator for recharging the storage battery and a bracket assembly for supporting the remainder of the components. The bracket assembly is lightweight and supports the solar generator in an orientation to provide adequate exposure to ambient light in a wide variety of sun positions. The signaling element is disposed substantially above the solar generator in order to minimize obstructions therebetween. The apparatus is adapted to be self-contained, to be independent in operation, and to be left unattended for substantial periods of time.

Abstract: A self-contained sun sensitive window made up of liquid nematic crystals sandwiched between two transparent conductors is powered directly by a solar cell. An increase in light intensity upon the solar cell reduces the transparency of the window, resulting in a constant intensity behind the window.

Abstract: A solar powered refrigeration unit includes an array of solar cells connected in series-parallel configuration to produce more than 12 volts dc. One side of the array is grounded, and the positive output is connected through a diode to the positive terminal of a storage battery. The diode is configured to prevent the battery discharging through the solar cell array. The array is also connectd to one side of a back to back diode arrangement, the junction of which is connected through a thermocouple to a voltage controlled relay. The refrigeration unit compressor is connected to the relay, which is switched on by the thermocouple. The back to back diode arrangement permits the greater voltage of the solar cell array or the storage battery to power the compressor.

Abstract: An apparatus for collecting solar energy and converting it to electrical energy utilizing solar panels pivotally mounted to a base such that the panels may be pivoted to a storage position inside said base. Additional solar panels may be pivotally mounted on retractable frame trays which stow inside the base when the panels are pivoted to a horizontal position.

Abstract: A bi-fold door assembly for a building. The door assembly includes an upper door section and a lower door section hinged to one another together with a door track mounted in an upwardly and inwardly inclined position. Additionally, the bottom of the lower door section cooperates with the door track for guided raising and lowering movement of the bi-fold door. The door assembly may also include an automatic opener operatively associated with the upper and lower door sections. When provided, the automatic opener may include a battery powered electrical motor together with a battery operatively associated with a solar panel for recharging thereof.

Abstract: An apparatus for collecting solar energy and converting it to electrical energy utilizing solar panels pivotally mounted to a base such that the panels may be pivoted to a storage position inside said base. Additional solar panels may be pivotally mounted on retractable frame trays which stow inside the base when the panels are pivoted to a horizontal position.

Abstract: An energy converting assembly is provided for parasiting of light from a fluorescent light bulb utilizing a solar cell. The solar cell is mounted on a base member elongated in the dimension of elongation of the fluorescent bulb, and electrical interconnections to the cell are provided. A flexible sheet of opaque material having a flat white interior reflective surface surrounds the fluorescent bulb and reflects light emitted from the bulb back toward the bulb and the solar cell. The reflective sheet is tightly held in contact with the bottom of the bulb by adhesive, a tie strap, an external clip, or the like.

Abstract: A lightweight attachment for a solar cell array in combination with spacing means for spacing the array consisting of a plurality of solar cells on a support next to a fluorescent tube to provide thereby a power package which is fitted with conductors to connect the solar cells in series to a remote motor adapted for the rotation of a remote display. A holding means is provided for the support to hold it close to the tube, which holding means may be a magnetic tape. The holding means may be a flexible strap having a tooth portion at the sides of the strap, the tooth sides being adapted to holding the support in closely spaced relation with the plurality of solar cells directly below the fluorescent tube. Spacing means is provided to fix the spacing between the surface of the cells on the support and the tube. Since there is no tension from the conductors and no substantial weight to dislodge the fluorescent tube due to the cells or support, the power package overcomes the safety hazards of the prior art.

Abstract: A photoluminescent dye is suspended in a transparent medium. When exposed to light, the dye re-emits light in a narrow frequency range. Photovoltaic cells responsive to the re-emitted light are arranged around the sides of the collector medium, and are electrically connected to a low power demand device, such as a calculator. A reflective surface is placed next to the collector medium and kept a slight distance away such that an air gap is formed between the collector and the reflective surface. This gap increases the efficiency of the collector to the point that the collector will operate a small calculator even though exposed to low light levels such as are normal in an office environment.

Abstract: Solar power station with semiconductor solar cells for generating electric power, wherein the semiconductor solar cells are provided on a member such as a balloon or a kite which carries the solar cells into the air. The function of the balloon or kite can also be fulfilled by a glider or airship. The solar power station can be operated by allowing the system to ascend at sunrise and descend at sunset or when the wind is going to be too strong in order to avoid any demage.

Abstract: A photovoltaic-electrolytic unit is provided to produce an electric current from solar energy and utilize the current to produce hydrogen by the electrolysis of water. The unit floats in an aqueous medium so that photoelectric cells are exposed to solar radiation, and electrodes submerged in the medium produce oxygen which is vented and hydrogen which is collected in the unit.

Abstract: A solar power system has a photovoltaic array having a locus of peak power points for various insolation levels, a voltage-dependent variable resistance load such as a water electrolysis unit electrically connected to the array, and a demand-dependent variable resistance load such as a DC to AC inverter connected in parallel with the electrolysis unit. The electrolysis unit or other voltage-dependent variable resistance load has a voltage-current characteristic in which the operating point is displaced from the array's peak power point for most insolation levels. The characteristic is displaced towards higher voltage-lower current operating points. The inverter may move the operating point of the photovoltaic array toward its peak power point when the load requires power. The system may be designed so that the array operates within about 5 percent of its peak power point over a wide range of inverter power demands.

Abstract: The invention concerns a photovoltaic generating panel easily adaptable to a roof. The panel is equipped with a peripheral frame formed by the assembly of straight light alloy shapes. The particular form of these shapes makes possible the laying of adjacent panels with overlapping of the edges of the latter.

Abstract: In a battery recharging arrangement for an automotive vehicle, one or more solar batteries, together with recharging current control means to charge an automotive vehicle battery, are disposed with supporting metal fixtures at a plurality of different positions to which solar energy is applied so as to prevent the rechargeable batteries mounted in an automotive vehicle body from becoming excessively discharged. The solar batteries are positioned on the roof of a vehicle or mainly within the passenger compartment at appropriate elevation angles, so that as long as the vehicle is in the condition wherever solar energy is applied, solar energy can be obtained at any position of the sun regardless of the direction the vehicle is moving in or of the place the vehicle is parked since at least one of the disposed solar batteries will be effectively exposed to sunlight.

Abstract: A photovoltaic module is disclosed in the form of a shingle having an active portion containing photovoltaic cells and an inactive mounting portion. Flat flexible ribbon-like positive and negative leads extend from the terminals in the active portion. The individual modules are mounted on a surface by means of fasteners extending through the inactive portions of the modules. At the time of installation, the flexible leads are folded to provide a servicing loop and the ends of the leads are then connected into the electrical network of the system. Individual modules can be removed from the system by moving the modules in their own planes away from the array of modules with accompanying straightening of the loops so that modules can be replaced. Improved circuit arrangements for connecting modules in an array and improved installation methods are disclosed which take advantage of the flat flexible conductors extending from the modules.

Abstract: A device utilizing solar energy cells to charge a battery or a plurality of batteries. An array of solar cells is disposed on a container having lid and tray parts. The parts are electrically interconnected to the solar cell array so that in container closed position the circuit including the solar cell array and the battery is closed to effect charging of the battery, and in container open position the circuit including the solar cell array and the battery is open with no flow of solar cell electrical output to the battery.

Abstract: A photovoltaic device comprises a light transmissive insulating substrate, on which a plurality of isolated transparent electrodes are formed. An amorphous silicon layer of a PIN structure, for example, is formed on the substrate continuously and in common to the respective transparent electrodes. Aluminum electrodes are formed on the surface of the amorphous silicon layer so as to correspond to the respective transparent electrodes. The transparent electrodes and the aluminum electrodes are electrically connected to the adjacent opponent electrodes to withdraw in a series fashion photovoltaic power generated at the respective photoelectric conversion regions.

Abstract: A small-sized electronic calculator, which comprises a power source in the form of a solar battery having a film of polycrystalline photoconductive material, such as selenium. The solar battery is connected for angular movement to the calculator body by suitable connection means, such as a hinge and a foldable metal spring. The calculator body includes a display section of liquid crystal elements. The solar battery may include an overvoltage preventing circuit and a reset switch. The output of the solar battery may be converted to a digital value to indicate the luminescent by the display section.

Abstract: A solar cell battery charging control system having a storage battery and a plurality of solar cells connected in series for charging the storage battery, which system comprises a heavy load means adapted to be driven by the storage battery to discharge the storage battery for thereby preventing overcharging of the storage battery when a battery charge level exceeds a predetermined value.

Abstract: A monolithie multijunction solar cell is modified by fabricating an integrated circuit inverter on the back of the cell to produce a device capable of generating an alternating current output. In another embodiment, integrated circuit power conditioning electronics is incorporated in a module containing a solar cell power supply.