Window with solar collector

摘要

A window unit has at least one transparent pane 810, 820 with a frame around its perimeter. At least one rotatable linear concave mirror 830 and at least one energy conversion device 850 extend at least partially across the frame. The unit is arranged so that substantially parallel radiation incident on the mirror 830 is reflected onto the energy conversion device 850. There may be a plurality of mirrors 830 which may be arranged as a blind between two panes 820, 830 in a double glazed unit. An alternative aspect provides an energy collector comprising an energy conversion device at least one mirror and a lens. A further alternative aspect provides an energy collector comprising an energy conversion device, at least one mirror, tracking means for tracking the angle of incidence of radiation with respect to the apparatus and rotating means for rotating the mirror.