Light exposure device including specular reflective and light- diffusing surfaces therein

摘要

A light exposure device including an open-ended housing with trapezoidal side walls and a rectangular top wall contiguous therewith. The internal surface of the top wall and major portions of the internal surfaces of the side walls are light-diffusing while the remaining portions of the side wall internal surfaces are specular reflective. These surfaces are arranged such that the reflective surfaces direct light from the device's light source to the diffusing surfaces whereby only the diffused light passes through the housing's open end. A portable copier which utilizes the above device is also described.