Head-up display
AssigneeValeo Comfort and Driving Assistance
InventorsArnaud Husson, Pierre Mermillod
Life of this patent
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Abstract
A head-up display for a motor vehicle comprises, inside a casing, an image-generating system from which emerge two source light beams, and two projecting optical systems that each project one source light beam toward the exterior so as to form two virtual images in the field of view of a vehicle driver: the head-up display further comprises an occulting part that allows a crossed imaging effect to be eliminated, and that may be motorized and the position of which may be automatically controlled depending on the position of the eyes of the driver of the vehicle.
Claims11
A head-up display for a motor vehicle comprising, inside a housing:
- an image generation system,
- a first optical projection system comprising a first mirror, and
- a second optical projection system comprising a second mirror,
- wherein the housing comprises an opening that is closed off by a transparent window,
- wherein the 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,
- wherein the first optical projection system and the second optical projection system are designed to project the first source light beam and second source light beam, respectively, outwardly through the 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 the motor vehicle,
- wherein the second optical projection system is configured to be passed through by a second intermediate light beam originating from the second source light beam,
- wherein the first mirror is able to intercept a portion of the second intermediate light beam and able to reflect the portion of the second intermediate light beam as a reflected portion,
- wherein the head-up display comprises a masking piece interposed between the first mirror and the transparent window, and
- wherein the masking piece is designed to stop the reflected portion.
Dependencies are inferred from the claim text.