Projection monitor

A projection monitor comprising:

• a first liquid crystal active matrix display for producing images along an optical path;
• a light source for illuminating the active matrix;
• a projection lens for enlarging and projecting the images received from the active matrix;
• a mirror for reflecting images received from the projection lens;
• a viewing screen for viewing images received from the mirror, the viewing screen positioned such that the mirror is at an angle between 36.degree. and 45.degree. from the viewing screen;
• and
• an enclosure for housing the light source, the active matrix, the projection lens, the mirror and the viewing screen, the enclosure having a front surface and a back surface, a plane extending along the front surface through which the viewing screen is viewed, the back surface sloping away from the front surface at an angle to the plane between 36.degree. and 45.degree., the back surface being adjacent to the mirror.

A projection monitor comprising:

• a light valve display assembly having a plurality of display panels for producing multicolor images along an optical path;
• a light source optically coupled to the light valve display assembly;
• a wide angle, retro-focus projection lens assembly having a dichroic prism, a series of lenses and an intermediate mirror optically disposed within the series of lenses for magnifying and projecting the images received from the active matrix display panels, the dichroic prism combining images received from the active matrix display panels, and the intermediate mirror folding the optical path through the lens assembly;
• a receiving mirror for reflecting images received from the projection lens assembly;
• a viewing screen for viewing images received from the receiving mirror;
• and
• an enclosure having a front surface and a back surface for housing the light source, the light valve display assembly, the projection lens assembly, the receiving mirror and the viewing screen.