A front projection display device includes an optical engine including an
illumination system, an imaging system, and projection optics. The
projection optics include a first lens group of negative refractive power
that has at least one aspheric surface. The projection optics output an
image at a half field angle of at least 45.degree., where the image has
substantially no distortion. For example, when the first lens group is
placed at a distance of less than 1 meter from a viewing screen, the
output image has a size of about 40 inches diagonal or greater, and
requires substantially no keystone correction. In other aspects, the
optical engine can be implemented in a wall-mounted projection system, a
multimedia system, a compact integrated monitor system, and a portable
projection unit.