Solar module having reflector between cells

Details Solar module having reflector between cells Solar module having reflector between cells

1998-04-24

1999-11-30

Chapman, Mark

Batteries: thermoelectric and photoelectric

Photoelectric

Panel or array

438 71, 438 72, H01L 2500

Patent

active

059946415

ABSTRACT:
A photovoltaic module comprising an array of electrically interconnected photovoltaic cells disposed in a planar and mutually spaced relationship between a light-transparent front cover member in sheet form and a back sheet structure is provided with a novel light-reflecting means disposed between adjacent cells for reflecting light falling in the areas between cells back toward said transparent cover member for further internal reflection onto the solar cells. The light-reflecting comprises a flexible plastic film that has been embossed so as to have a plurality of small V-shaped grooves in its front surface, and a thin light-reflecting coating on said front surface, the portions of said coating along the sides of said grooves forming light-reflecting facets, said grooves being formed so that said facets will reflect light impinging thereon back into said transparent cover sheet with an angle of incidence greater than the critical angle, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to said solar modules, thereby increasing the current output of the module.

REFERENCES:
patent: 4235643 (1980-11-01), Amick
patent: 5554229 (1996-09-01), Vogeli
J.A. Amick et al, "V-Groove Faceted Reflector For Enhanced Module Output", pp. 1376-1381, Record of IEEE Photovoltaic Specialists Conference--1981.

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