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SAE 2016-01-1402 : 2016

Next Generation PVB Interlayer for Improved HUD Image Clarity

Standard Details

Head-up display (HUD) technology creates inherent driver safety advantages by displaying critical information directly in the driver’s line of sight, reducing eyes off road and accommodation time. This is accomplished using a system of relay optics and windshield reflection to generate a virtual image that appears to hover over the hood near the bumper. The windshield is an integral optical component of the HUD system, but unfortunately the windshield-air interface causes a double image ghost effect as a result of refractive index change, reducing HUD image clarity. Current technology uses a constant angle wedged PVB windshield interlayer to eliminate double image at a single driver height. However, the HUD double image persists for all other viewing locations. Eastman Chemical Company has developed a new interlayer technology which eliminates the double image at all driver locations by tuning the wedge angle as a function of driver occupant seated height. The purpose of this paper is to discuss this exciting technology and its application to produce best in class HUD image clarity.

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General Information

Status : ACTIVE
Standard Type: Main
Document No: SAE 2016-01-1402 : 2016
Document Year: 2016

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ACTIVE
SAE 2016-01-1402 : 2016
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