Holographic solar concentrator

Patent metadata

Field	Value
Publication number	US-9105783-B2
Application number	US-32177709-A
Country	US
Kind code	B2
Filing date	Jan 26, 2009
Priority date	Jan 26, 2009
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A solar concentrator receives sunlight for generating solar power with the concentrator including holographic optical element (HOE) separators for separating sunlight into separated bands, including HOE concentrators for concentrating the separated bands into concentrated bands, including HOE reflectors for reflecting the concentrated bands as reflected bands onto a multiple junction photovoltaic solar cell for generating the solar power with reduced aberrations of the bands for improved conversion of the solar light into the generator solar power, all of which can be constructed in an integrated structure using spacers, waveguides, and a substrate, where the HOEs use chirp Bragg gratings for reducing optical aberrations of the separated, concentrated, and reflected optical bands, with the option of multiple HOE separators for receiving sunlight from various angles of incidence.

First claim

What is claimed is:

1. A light concentrator for generating power based on received light, the concentrator comprising:
a substrate;
a photovoltaic (PV) cell integrally disposed on the substrate;
a shield disposed on at least one surface of the PV cell, wherein the shield is disposed on a surface of the PV cell facing the received light, and is configured to block the received light from directly irradiating the PV cell;
a holographic diffraction grating-based separator integ…

Assignees

• Okorogu Albert O
• Marvin Dean C
• Liu Simon H
• Prater Alonzo
• Aerospace Corp

Inventors

• Okorogu Albert O
• Marvin Dean C
• Liu Simon H
• Prater Alonzo

Classifications

• Y02E10/52

  Cross-Sectional Technologies · mapped topic

• H10F77/488 Primary

  Electricity · mapped topic

• H01L31/0522 Primary

  Electricity · mapped topic