What’s new

August 2026

• patent · 31 Jul 2025 · added 2 months ago

  Mechanically laminated solar-transmitting cells or modules

• patent · 25 Oct 2005 · added 2 months ago

  Motion-free tracking solar concentrator

  An integrated solar concentrator and tracker is constructed from a beam deflector for unpolarized light in combination with a fixed optical condenser. The one-dimensional beam defl...

• patent · 11 Aug 2014 · added 2 months ago

  Solar thermal power generator

• patent · 20 Oct 2015 · added 2 months ago

  Concentrating and spectrum splitting optical device for solar energy applications

• patent · 5 Oct 2017 · added 2 months ago

  A high efficient solar thermal and solar electricity combined unit

• patent · 27 Jun 2006 · added 2 months ago

  Compact non-imaging light collector

  A nonimaging optical system for processing a first and second light distribution. The nonimaging optical system includes at least two refractive surfaces, at least one reflective s...

• patent · 26 Feb 2008 · added 2 months ago

  Solar cell structure with by-pass diode and wrapped front-side diode interconnection

  A solar cell structure includes a solar cell having a front side and a back side and an active semiconductor structure. The solar cell produces a voltage when the front side is ill...

• patent · 29 Jan 2008 · added 2 months ago

  Skylight domes with reflectors

  A skylight cover includes a transparent lens and an opaque reflector attached to the inside of the cover opposite the lens. Light entering the lens can be refracted by the lens so...

• patent · 18 Dec 2007 · added 2 months ago

  Multi-junction solar cell device

  A multi-junction solar cell device ( 10 ) is provided. The multi-junction solar cell device ( 10 ) comprises either two or three active solar cells connected in series in a monolit...

• patent · 25 May 2004 · added 2 months ago

  Illumination engine for a projection display using a tapered light pipe

  An illumination engine for a projection display using a TLP including a reflector having a first focal point and second focal points. A source of electro-magnetic radiation dispose...

• patent · 14 Jun 2005 · added 2 months ago

  Hybrid thermionic energy converter and method

  The present invention embodies a solid state thermionic energy converter and is directed to a method and apparatus for conversion of thermal energy to electrical energy, and electr...

• patent · 28 Aug 2001 · added 2 months ago

  Multi-junction, monolithic solar cell using low-band-gap materials lattice matched to GaAs or Ge

  A multi-junction, monolithic, photovoltaic solar cell device is provided for converting solar radiation to photocurrent and photovoltage with improved efficiency. The solar cell de...

• patent · 18 Apr 2000 · added 2 months ago

  Light condensing-type solar generator system

  A solar battery cell of a back-electrode type is used to enhance the photo-electric efficiency in which the electrical connecting structure for the solar battery cell is simplified...

• patent · 19 Dec 2000 · added 2 months ago

  Nighttime solar cell

  This invention is a thermoelectric-photovoltaic device for converting electrical energy from both thermal radiation and sunlight. Thermoelectric energy is produced from thermoelect...

• patent · 27 Mar 2001 · added 2 months ago

  Acrylic flexible light pipe of improved photo-thermal stability

  Acrylic light pipe has adequate thermal and photo-thermal stability for many purposes, but is deficient in maintaining clarity, color, and good optical properties under conditions...

• patent · 11 Jul 2000 · added 2 months ago

  Method and apparatus for directing solar energy to solar energy collecting cells

  A photovoltaic array includes a plurality of generally planar cells, arranged in panels, a light collecting body having a solar energy collecting surface adapted to be oriented for...

• patent · 5 Mar 1996 · added 2 months ago

  Stowable and deployable concentrator for solar cells

  A stowable and deployable concentrator for solar cells, A flexible, springily resilient Fresnel lens is held in a frame whose relaxed condition holds the Fresnel lens as the linear...

• patent · 27 Dec 1994 · added 2 months ago

  Single-junction solar cells with the optimum band gap for terrestrial concentrator applications

  A single-junction solar cell having the ideal band gap for terrestrial concentrator applications. Computer modeling studies of single-junction solar cells have shown that the prese...

• patent · 25 Jan 1994 · added 2 months ago

  Printed circuit board with cooling monitoring system

  A monitoring system for printed circuit boards which are air-cooled utilizes temperature sensors which have thermal diodes embedded directly into the integrated circuits. The therm...

• patent · 28 Feb 1995 · added 2 months ago

  Multilayer film multijunction thermal converters

  Multijunction thermal converters are formed in an integral multifilm membrane form over a through opening in a nonmagnetic, dielectric substrate. Through the use of conventional ph...

• patent · 14 Dec 1993 · added 2 months ago

  Regulating control circuit for photovoltaic source employing switches, energy storage, and pulse width modulation controller

  A regulating circuit controls current flow from a photovoltaic power source (20) to a storage battery (38) to improve the conversion of solar energy to electric energy. Two transis...

• patent · 25 Feb 1992 · added 2 months ago

  Tandem photovoltaic solar cell with III-V diffused junction booster cell

  A photovoltaic cell array involving rows and columns of tandem or stacked solar cell units composed of GaSa/GaSb associated with a radiation collector have produced measured energy...

• patent · 11 May 1993 · added 2 months ago

  Integrity-enhanced thermoelectrics

  Disclosed are integrity-enhanced thermoelectric devices and methods of their preparation. Such devices have the following characteristics: (1) there is, on average, no greater than...

• patent · 24 May 1988 · added 2 months ago

  Method of continuously forming an array of photovoltaic cells electrically connected in series

  A method of continuously electrically interconnecting in series a plurality of smaller area photovoltaic cells from a continuous, elongated web of photovoltaic cell material which...

• patent · 23 Apr 1991 · added 2 months ago

  Tandem solar cell

  A tandem solar cell device includes an upper solar cell, a lower solar cell, and an intervening buffer layer. A short wavelength region of the incident light is absorbed by the upp...

• patent · 29 Dec 1987 · added 2 months ago

  Heterojunction bipolar transistor having a base region of germanium

  The heterojunction bipolar transistor has a structure of wide band-gap transistor and comprises a collector region having an N-type GaAs layer, a base region having a P-type german...

• patent · 29 Dec 1987 · added 2 months ago

  Stamped concentrators supporting photovoltaic assemblies

  An advanced slatted reflector is provided to collect and concentrate solar energy. In its simplest form the module is a louvered sheet material platform that is mounted with a phot...

• patent · 1 Dec 1987 · added 2 months ago

  Combined photovoltaic-thermoelectric solar cell and solar cell array

  A solar cell generates an electrical voltage with contributions from both photovoltaic and thermoelectric effects, when a high thermal gradient is impressed across a semiconductor...

• patent · 14 Jul 1987 · added 2 months ago

  Two-terminal, thin film, tandem solar cells

  Tandem solar cells combine the energy-absorbing efficiencies of 1.7 eV CdSe/ZnTe heterojunctions with 1.0 eV I-III-VI2/II-VI heterojunctions in mechanically-stacked or monolithic c...

• patent · 22 Sep 1987 · added 2 months ago

  Preformed, thin-film front contact current collector grid for photovoltaic cells

  A photovoltaic cell incorporating a preformed, thin-film front contact current collector grid (14). The cell incorporates an electrically conductive substrate layer (11), a semicon...