Patent Document ID: 8264621
Application ID: 12629727
Patent Status: 1

Claim One:
1. Viewing device comprising at least one display ( 1 ) and means of generating an initial image I INIT on said display, the image being referenced in a reference plane (x,y), said device being intended to be mounted in a vehicle and used with a windscreen ( 2 ), the arrangement of the viewing device being such that, the device being mounted in the vehicle, the image is reflected on an area of the windscreen before being perceived by a user, said windscreen including at least two reflecting dioptres, an internal dioptre ( 21 ) and an external dioptre ( 22 ), the internal dioptre giving, from the initial image I INIT , a first reflected image I REF1 the external dioptre giving, from the initial image I INIT , a second reflected image spatially offset from the first reflected image I REF2 , the offsets being denoted (dx,dy) in the plane (x,y), the relative reflection coefficient of the second image relative to the first image being equal to k, k being strictly less than 1, the image seen by the user being the sum of these two reflected images, wherein the initial image I INIT generated on the display is equal to a succession of offset images, each image being alternately the “positive” and the “negative” of an ideal image I IDEAL , such that I INIT = I O + ∑ i = 0 N ⁢ ( - k ) i · I IDEAL ⁡ ( x + i · ⅆ x , y + i · ⅆ y ) , i being an integer number varying between 0 and N, N being equal to or greater than 1, I IDEAL being referenced in the reference plane (x,y), I O being an image of uniform luminance such that the luminance level of I INIT does not include any negative term, so that the image seen I VUE is substantially equivalent to the image I IDEAL .