Title:
SOLAR BATTERY
Document Type and Number:
Japanese Patent JP2007073774
Kind Code:
A
Abstract:
To provide a solar battery by which power generation output of photoelectric conversion devices per unit area is increased by improving their collection efficiency.
A prism sheet 4 deflects external light to be incident on it so that directivity of the light to the direction A of its thickness may be increased. The light deflected by the prism sheet 4 is incident on a plane 6 of incidence of a Fresnel lens 3. The Fresnel lens 3 collects incident light from the plane 6 of incidence onto light receiving surfaces 5 of solar cells 2. The solar cells 2 convert light energy of the light received on the light receiving surfaces 5 into electrical energy.
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Inventors:
NAMIKATA RYOJI
FUTAGAWA MASAYASU
FUTAGAWA MASAYASU
Application Number:
JP2005259815A
Publication Date:
March 22, 2007
Filing Date:
September 07, 2005
Export Citation:
Assignee:
SHARP KK
International Classes:
H01L31/042
Attorney, Agent or Firm:
Keiichiro Saikyo
Takeshi Sugiyama
Minetarou Hirose
Takeshi Sugiyama
Minetarou Hirose