Lighting module forming a light pattern divided into a sharp upper portion and a fuzzy lower portion

A lighting module for a motor vehicle headlight comprising a plurality of light sources and a primary optical element for forming a plurality of light patterns, wherein:

• each light pattern is divided into an upper portion and a lower portion which are lit simultaneously and inseparably, the upper portion being delimited transversely by two vertical edges for each of which the light intensity decreases according to a first determined gradient, and the lower portion being delimited transversely by two vertical edges for each of which the light intensity decreases according to a second determined gradient lower than said first determined gradient,
• the plurality of light patterns are contiguously aligned transversely and controlled independently of one another to participate in the formation of a pixel light beam,
• the primary optical element is associated with the plurality of light sources each of which is associated with one of the plurality of light patterns, the primary optical element comprising a light output face and a plurality of adjacent light guides each associated with one of the light sources, and
• wherein the lower portions of the light patterns are produced by joining a corresponding part of the lateral faces of the adjacent light guides to form a forming layer, the upper portions of the light patterns being produced by a portion of the lateral faces of the light guides separated transversely from one another.