Abstract: An optical engine for use with MEMS microdisplay devices is disclosed that comprises a collection stage module, an imaging stage module featuring polarization based imaging prism assemblage, and a polarizing illumination stage module featuring a special light integration tube that removes off-axis overfill loss.

Abstract: An optical engine architecture that operates as either a two-imager or a three-imager optical engine. The optical engine uses a first PBS cube and a second PBS cube having an optical axis between them. In between the first PBS cube and second PBS cube are two quarter wave plates and a dichroic mirror, where the dichroic mirror is disposed between the two quarter wave plates. In the three imager embodiment, a retarder is disposed between the second PBS cube and the quarter wave plate closest to the second PBS cube. In the two imager embodiment, this retarder is not necessary.

Abstract: A projection engine architecture for use with liquid-crystal-on-silicon semiconductor imager devices is described. This projector architecture relates to rear projection television and computer monitor applications, wherein image resolution is higher and image size is larger than is practical with cathode ray tube based technologies. The optical architecture disclosed includes a high speed light collection stage wherein luminance from an arc lamp is collected and condensed, an illumination stage wherein the luminance is ideally transformed for presentation to an imaging stage comprised of a triad of three perpendicular polarization beamsplitter cubes and attendant color processing components that form a solid prism assembly. Central to the architecture are means for eliminating the deleterious effects of waste light created by polarization and color separation components within the imaging stage.

Abstract: A projection engine architecture for use with liquid-crystal-on-silicon semiconductor imager devices is described. The optical architecture disclosed includes a high speed light collection stage wherein luminance from an arc lamp is collected and condensed, an illumination stage wherein the luminance is ideally transformed for presentation to an imaging stage comprised of a triad of three perpendicular polarization beamsplitter cubes and attendant color processing components that form a solid prism assembly. Central to the architecture are an arrangement of optical components that eliminate the deleterious effects of waste light created by polarization and color separation components within the imaging stage.

Abstract: An image projection beam transmission apparatus includes a sheet of optical bulk material having a planar material exit surface and an optical surface. An optical axis is substantially perpendicular to a plane defined by said optical surface. The optical surface comprises a matrix of focusing lens units. Each focusing unit has separate and distinct optical refracting curvature in both a first principle axis, which is perpendicular to the optical axis and a second principle axis, also perpendicular to said optical axis. The first principal axis is perpendicular to the second principal axis. Each of the optical focusing elements is disposed in substantially contiguous and integral relation, and repeats along the first and second principle axes.