NOVELTY - The skylight has a set of solar cells (5) supported by a substrate (100). A lens array comprises a set of lenses oriented along a common cylindrical axis parallel to a ground, where each lens concentrates light on the solar cells. The lens array is spaced apart from the substrate such that air gap (50) is defined between the lens array and the substrate, and the lens array and the solar cells remain in fixed position relative to one another, so that incident angles of direct solar illumination vary in a manner that focuses all direct solar illumination on the cells in a selected time period.    USE - Dual glazing insulated concentrated glass multifunctional static or semi-static photovoltaic skylight for a building-integrated photovoltaic system used on a roof of a building structure e.g. factory, warehouse, office building, large store, school and shopping center, to transmit diffuse daylight into interior of the building structure. Can also be used for a photovoltaic window, windshield and a sunroof for automobiles.    ADVANTAGE - The skylight can be installed on the roof at latitude tilts and can transmit diffuse daylight into the interior of the building, while converting direct sunlight into electricity at relatively high efficiency. The skylight can be horizontally or vertically placed on the roof or orientable at a tilt selected in dependence on latitude where the skylight is to be installed. The skylight provides benefits in any scenario where a combination of electricity generation, thermal insulation, solar heat gain control and daylight entry can reduce utility or operational costs of the building. The skylight absorbs direct sunlight by solar cell strips for generation of electricity to diffuse daylight to enter primary light to the building so as to reduce glare from direct sunlight. The transmitted diffuse daylight can reduce a need for artificial lighting in the building without increasing ambient temperature within the building. The skylight increases lighting within the building without increasing temperature, decreases a need for artificial lighting and provides an additional source of electricity. The skylight reduces energy usage or utility costs in multiple ways, and provides daylight that tends to promote health and productivity of occupants of the building.    DETAILED DESCRIPTION - The selected time period is in middle of the day. INDEPENDENT CLAIMS are also included for the following:    (1) a method for making a skylight    (2) a method for making a building integrated photovoltaic device.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a dual glazing insulated glass photovoltaic skylight system.    Lenticular array (3)    Solar cells (5)    Slide mechanism (40)    Air gap (50)    Pockets (70)    Substrates (100, 200)