Patent ID: 6636370
Filing Date: 2003-10-21
Classification: B32B,G02B,Y10T

Abstract:
An automotive transparency for use with a heads-up display system comprising:a first glass ply; a second glass ply, the first and second glass plies each having a constant thickness of 0.090 inch and a distance between top of the plies to bottom of the plies of 45 inches; an interlayer between the first and second glass plies; the interlayer has a top edge and an opposite bottom edge, the interlayer having a constant thickness of 0.038 inch from the top edge to a distance of 25 inches therefrom defined as a thickness change line and a taper from the thickness change line to the bottom edge of the interlayer, wherein the thickness of the interlayer at the thickness change line is 0.038 inch and at the bottom edge is 0.030 inch.