Patent ID: 8854281

Claim:
A Head Up Display (HUD), comprising at least: an image display unit generating one or more input images; at least a virtual image generation unit including a plurality of magnifying optical elements arranged into a matrix array to form a digital micro-mirror device, said virtual image generation unit sequentially addressing each of a plurality of input image portions, each image portion including a plurality of pixels, said virtual image generation unit receiving said input image portions and producing a plurality of virtual images, each virtual image corresponding to a respective one of said input image portions; a rotation mechanism controlling rotation angles of said virtual image generation unit, said rotation mechanism changing rotation angles of said virtual image generation unit to change a projection angle between a portion of said virtual images for display of said plurality of virtual images in spaced relation one from another; and a plurality of transmission mirrors, each transmission mirror respectively receiving a portion of said plurality of virtual images at a different one of said projection angles and reflecting the plurality of virtual images to a viewer to thereby appear concurrently as a large area virtual image; wherein each magnifying optical element of said plurality thereof corresponds to at least one of said pixels and is swayed by said rotation mechanism in a predetermined fashion to project a respective one of said plurality of virtual images generated thereat onto a respective one of said plurality of transmission mirrors, wherein said rotation mechanism has a plurality of swaying states, and wherein a number of said transmission mirrors in said plurality thereof substantially equals to a number of said swaying states of said rotation mechanism.