The invention relates to a concentrator photovoltaic module comprising a housing, a photovoltaic chip, at least two electrical contacts for contacting the photovoltaic chip, and a transparent cover. The housing has a recess forming a receiving tray with a recessed bottom portion for receiving the photovoltaic chip. The receiving tray has side walls with at least a first and a second reflective region. The first reflective region is oriented at a first angle with respect to a horizontal plane of the housing and the second reflective region is oriented at a second angle with respect to the horizontal plane of the housing. The first angle is different from the second angle.

The present disclosure relates to compound parabolic concentrators. In one implementation, a compound parabolic concentrator may include a parabolic array having a base, a side wall, and an aperture for receiving light and a dielectric layer having a refractive index. In another implementation, a stacked compound parabolic concentrator may include a parabolic array having a base, a side wall, and an aperture for receiving light and multiple dielectric layers within the array. Each dielectric layer may have a refractive index, and the refractive index may decrease with each dielectric layer moving from the base of the parabolic array to the light receiving aperture.

A radiatively cooled solar array, including a downwardly-facing solar cell and a mirror positioned below the solar cell and oriented to direct sunlight onto the solar cell. The assembly also includes a heat sink in thermal communication with the solar cell and disposed opposite the mirror. The heat sink is in radiative communication through Earth's atmosphere with outer space.

A Concentrating PhotoVoltaic (CPV) system employs an inflatable non-imaging CPC concentrator to concentrate sunlight to realize extremely low cost and a synergistically combined photonic crystal waveguide solar spectrum splitter and perovskite integrated circuitry solar cell package to realize ultra-high conversion efficiency of solar radiation. The corporation of band gap variable perovskite materials into the integrated circuit solar cell not only reduces the cost and raises the efficiency of the photovoltaic package as the receiver, but also addresses the unstable issue of the perovskite materials through sealing the perovskite materials into package to prevent moisture, reducing the heat generation to low the temperature, and filtering the UV light and channel to other elemental solar made of broader band gap photovoltaic materials.

According to one embodiment, a photovoltaic cell module includes a light guide including a first main surface, a second main surface, a first side surface, a second side surface, a third side surface and a fourth side surface, an optical element opposing the second main surface, containing a cholesteric liquid crystal forming a reflective surface inclined with respect to the second main surface, and configured to reflect at least a part of light entering from the first main surface toward the light guide, a photovoltaic cell opposing the first side surface and a reflective member opposing the second side surface, the third side surface and the fourth side surface.

A method of making a light converting optical system comprising providing a first optical layer, a thin sheet of reflective light scattering material, a light source, a second optical layer approximately coextensive with the first optical layer, a continuous broad-area photoabsorptive film layer approximately coextensive with the first optical layer, positioning the thin sheet of reflective light scattering material parallel to the first optical layer, positioning the continuous broad-area photoabsorptive film layer between and parallel to the first optical layer and the thin sheet of reflective material, and positioning the second optical layer on a light path between the light source and the continuous broad-area photoabsorptive film layer. The first optical layer has a microstructured broad-area front surface comprising an array of linear grooves disposed side by side and extending along a straight line between two edges of the layer.

A transparent luminescent solar concentrator (TLSC) is provided. The TLSC includes a luminophore and a waveguide that guides light emitted from the luminophore. The TLSC has a light utilization efficiency (LUE) of greater than or equal to about 1.

To provide a cover glass for a solar cell module which can sufficiently maintain the power generation efficiency of a solar cell module, even when a design is imparted to the entire surface of the cover glass so as to make solar cells be invisible from the outside, and a solar cell module. To provide a cover glass 14 to be bonded on light-receiving surfaces 16A and 16B of solar cells 16 via an encapsulant material 18, which has a visible transmittance of from 0% to 60% and an average infrared transmittance of from 20% to 100%, which is a value calculated by simply averaging transmittances at 5 nm intervals in an infrared region at a wavelength of from 780 nm to 1,500 nm.

An energy harvesting electro-optic display is disclosed comprising a photovoltaic cell that converts part of the incident light to electric current or voltage, wherein the electric current or voltage is used for the operation of the electro-optic display upon the conversion or stored in a storage component to be used for the operation of the display.

The present invention relates to a device (100) for light exposure regulation of agricultural goods and energy production, in particular electrical energy production, by converting or transmitting a highly-directional component (81) of incident light (80) and by transmitting a diffuse component (82) of incident light (80), comprising: #an optical arrangement (40) comprising a first optical layer (41), wherein the first optical layer (41) comprises a plurality of primary optical elements (47); #a light energy conversion layer (50) at least partially transparent to light and comprising a plurality of distant light energy conversion elements (51) capable of converting light energy in an output energy; #a shifting mechanism (60) for moving the optical arrangement (40) relative to the light energy conversion layer (50) or vice versa; and #a frame element (10) to which either the optical arrangement (40) or the light energy conversion layer (50) is attached, wherein the shifting mechanism (60) is arranged to displace the optical arrangement (40) or the light energy conversion layer (50) translationally relative to the frame element (10), through one or more translation element (65), wherein the primary optical elements (47) of the first optical layer (41) and the shifting mechanism (60) are designed such that the highly-directional component (81) of incident light (80) is directable onto the light energy conversion elements (51) of the light energy conversion layer (50) and such that the diffuse component (82) of incident light (80) is transmittable through the regions of the light energy conversion layer (50) not covered by the light energy conversion elements (51), and wherein the amount of light transmitted through the device (100) is controllable. Furthermore, the present invention also relates to a corresponding method and use for converting light energy with the aforementioned device.