Head-up display for a motor vehicle comprising, inside a housing: - an image generation system; - a first projection optical system comprising a first mirror and a second projection optical system comprising a second mirror; the housing comprising an opening that is closed by a transparent window; characterized in that: - said image generation system is designed to emit a first source light beam and a second source light beam that are spatially distinct from one another; - said first projection optical system and said second projection optical system are designed to project said first source light beam and second source light beam, respectively, outwardly through said transparent window, so as to form a first virtual image at a first projection distance and a second virtual image at a second projection distance in the field of view of a driver of said motor vehicle; - said second projection optical system is designed to be passed through by a second intermediate light beam originating from the second source light beam; - the first mirror is able, on the one hand, to intercept a portion of the second intermediate light beam and, on the other hand, to reflect said portion as a reflected portion; - the head-up display comprises a masking piece interposed between the first mirror and the transparent window, and designed to stop said reflected portion. - an image generation system; - a first projection optical system comprising a first mirror and a second projection optical system comprising a second mirror; the housing comprising an opening that is closed by a transparent window; characterized in that: - said image generation system is designed to emit a first source light beam and a second source light beam that are spatially distinct from one another; - said first projection optical system and said second projection optical system are designed to project said first source light beam and second source light beam, respectively, outwardly through said transparent window, so as to form a first virtual image at a first projection distance and a second virtual image at a second projection distance in the field of view of a driver of said motor vehicle; - said second projection optical system is designed to be passed through by a second intermediate light beam originating from the second source light beam; - the first mirror is able, on the one hand, to intercept a portion of the second intermediate light beam and, on the other hand, to reflect said portion as a reflected portion; - the head-up display comprises a masking piece interposed between the first mirror and the transparent window, and designed to stop said reflected portion. - said image generation system is designed to emit a first source light beam and a second source light beam that are spatially distinct from one another; - said first projection optical system and said second projection optical system are designed to project said first source light beam and second source light beam, respectively, outwardly through said transparent window, so as to form a first virtual image at a first projection distance and a second virtual image at a second projection distance in the field of view of a driver of said motor vehicle; - said second projection optical system is designed to be passed through by a second intermediate light beam originating from the second source light beam; - the first mirror is able, on the one hand, to intercept a portion of the second intermediate light beam and, on the other hand, to reflect said portion as a reflected portion; - the head-up display comprises a masking piece interposed between the first mirror and the transparent window, and designed to stop said reflected portion.