Method for producing concentrator photovoltaic unit, production apparatus used in the method, method for producing concentrator photovoltaic module, and production apparatus used in the method

Abstract

Mutual alignment between a condenser lens and its power generating element can be performed easily and accurately. This method for producing a concentrator photovoltaic unit includes: a first step of emitting linear laser beams respectively toward incident positionson an incident surface; and a second step of performing positional adjustment between a Fresnel lensand a power generating element part, based on positional relationship between the power generating element partand beam images respectively formed by the linear laser beams at a time when the beam images and the power generating element partare seen along an optical axis S from the incident surfaceside of the Fresnel lens. Four incident positionsin the first step are set such that at least one pair of beam images, among the beam images respectively formed by the linear laser beams, cross each other at an optical axis point Sof the Fresnel lenswhen the power generating element partside is seen along the optical axis S from the incident surfaceside of the Fresnel lens