NOVELTY - Making lens array (1) involves making glass using float process including float glass line; and patterning the glass using rollers disposed along the float glass line so as to form first lenses oriented along a common axis, where the rollers each have profiles such that each first lens is patterned to have at least one convex major surface when viewed in side cross section.    USE - For making lens array in solar photovoltaic module (claimed).    ADVANTAGE - The lens has focal length of 10-200 mm, width of 10-100 mm, minimum thickness of 2-4 mm and maximum thickness of 4-8 mm. The lens arrays are used in combination with strip solar cells and/or single-axis tracking systems that help to reduce cost per watt related, in part, to the potentially reduced amount of semiconductor material to be used.    DETAILED DESCRIPTION - Making lens array (1) involves making glass using float process including float glass line; and patterning the glass using rollers disposed along the float glass line so as to form first lenses oriented along a common axis, where the rollers each have profiles such that each first lens is patterned to have at least one convex major surface when viewed in side cross section. The method further involves patterning additional glass using the rollers so as to form second lenses oriented along second common axis, each first and second lens is plano-convex lens; laminating both lenses such that its planar surfaces are adjacent to one another in making the lens array; thermally tempering the lenses in the lens array; and wet-applying antireflective coating to surfaces of the lens array. INDEPENDENT CLAIMS are included for the following:    (1) making solar photovoltaic module involving providing the lens array and elongate solar cells, each solar cell comprising c-Si, and orienting the lens array relative to the solar cells such that each lens is arranged to concentrate light incident on it in one dimension on the elongate solar cells; and    (2) making solar photovoltaic system involving connecting the photovoltaic module to single-axis tracking system at fixed tilt, the single-axis tracking system is movable so as to match the East-West movement of the sun.    DESCRIPTION OF DRAWING(S) - The figure shows linear focusing concentrating photovoltaic system including cylindrical lens array made from patterned glass.    Lens array (1)    Lenses (3a,3b,3c,3d)    Strip solar cells (5a,5b,5c,5d)