Abstract: A method of manufacturing a multi-layer panel having a curved reflective and/or transmitting facing layer that includes the steps of increasing and/or decreasing pressure on a side of a thin membrane to form a pressure differential across the thin membrane that causes the thin membrane to deform to a required shape; applying a first layer of material to an outer surface of the thin membrane while the thin membrane is maintained in the required shape by the increase and/or decrease in pressure, and allowing the first layer of material to cure for a pre-determined time.

Abstract: An image projection apparatus (100) comprises a projector (106), a frame (108), and a partially transparent screen (110). The frame (108) retains the screen (110) under tension, such that the screen (110) is inclined at an angle with respect to a plane of emission of light from the projector (106). The screen (110) has a front surface arranged such that light emitted from the projector (106) is reflected therefrom. The projector (106) projects an image such that light forming the image impinges upon the screen (11) such that a virtual image is created from light reflected from the screen (110), the virtual image appearing to be located behind the screen (110).