3D kernel and prism assembly design

Details 3D kernel and prism assembly design 3D kernel and prism assembly design

2005-06-29

2008-03-25

Koval, Melissa Jan (Department: 2862)

Optics: image projectors

Polarizer or interference filter

C353S031000, C353S033000, C353S081000, C353S121000, C359S834000, C359S837000

Reexamination Certificate

active

07347558

ABSTRACT:
A Liquid Crystal on Silicon (LCOS kernel for a light engine is configured in a kernel having light paths in three dimensions (3D kernel). The 3D kernel allows for designs that do not require Wavelength Dependent Waveplates (WDWs) (or Wavelength Specific Retarders) for managing light polarizations within the 3D kernel. In one embodiment, the 3D kernel includes a Polarizing Beam Splitter (PBS) that is positioned to direct lightpaths within the 3D kernel in the 3rddimension (e.g., light path planes perpendicular to planes of input light provided to the 3D kernel). The 3rddimension is, for example, an output light path perpendicular to an input light plane. The 3D kernel allows for designs that incorporate reflective LCOS microdisplays and management of light paths without WDWs. The kernel is suitable for use in High Definition (HD) LCOS Rear Projection Televisions (RPTVs) and other projector applications.

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