Abstract: Cube polarizers can be designed for substantially equal optical path lengths of a reflected beam and a transmitted beam. For example, d11 of FIG. 1 can define a distance between a plane (face plane2) of the outer face (outer face2) of a second prism 16 and the first edge (first edge1) of the first prism, and d11 can be less than 400 micrometers. As another example, an optical path length differential between a transmitted beam and a reflected beam (|OPLT?OPLR|) can be < 0.5 * t * n p 2 ; where t is a thickness of the substrate between the first surface and the second surface of the substrate and np is an index of refraction of the first prism.

Abstract: Buoyancy compensated erosion control modules and systems are provided. One embodiment includes a shell having at least one wall oriented at an off-vertical angle, a substantially enclosed inner cavity, the inner cavity at least partially filled with a foam core, a perimeter footing at the bottom of the shell, the perimeter footing having a lower cavity that is open on the bottom, at least one vertical pile sleeve and at least one battered pile sleeve, and at least one connector to couple the module to a second module.

Abstract: The cube polarizer can have modified prism dimensions to satisfy the following equation: ? OPL T - OPL R ? < 0.5 * t * n p 2 , where an optical path length is a distance of light travel through a material times an index of refraction of the material, OPLT is an optical path length of the transmitted beam, OPLR is an optical path length of the reflected beam, t is a thickness of the substrate between the first surface and the second surface of the substrate, and np is an index of refraction of the first prism.

Abstract: Cube polarizers can be designed for substantially equal optical path lengths of a reflected beam and a transmitted beam. For example, d11 of FIG. 1 can define a distance between a plane (face plane2) of the outer face (outer face2) of a second prism 16 and the first edge (first edge1) of the first prism, and d11 can be less than 400 micrometers. As another example, an optical path length differential between a transmitted beam and a reflected beam (|OPLT?OPLR|) can be < 0.5 * t * n p 2 ; where t is a thickness of the substrate between the first surface and the second surface of the substrate and nP is an index of refraction of the first prism.

Abstract: Cube polarizers designed for substantially equal optical path lengths of a reflected beam and a transmitted beam. Cube polarizers designed to reduce wire grid polarizer curvature in order to minimize wavefront distortion of the reflected beam and the transmitted beam.

Abstract: Buoyancy compensated erosion control modules and systems are provided. One embodiment includes a shell having at least one wall oriented at an off-vertical angle, a substantially enclosed inner cavity, the inner cavity at least partially filled with a foam core, a perimeter footing at the bottom of the shell, the perimeter footing having a lower cavity that is open on the bottom, at least one vertical pile sleeve and at least one battered pile sleeve, and at least one connector to couple the module to a second module.

Abstract: Projection display systems for light valves such as liquid crystal display panels, and in particular to the use of color component rotators, such as retardation filters, to provide for improved projection display architectures.

Abstract: Projection display systems for light valves such as liquid crystal display panels, and in particular to the use of color component rotators, such as retardation filters, to provide for improved projection display architectures.

Abstract: A device switching an output of a polarized light beam on the basis of the beam's polarization state is disclosed. Optical “add,” “drop,” and crossbar switch devices for multiplexed optical signals are based on wavelength specific embodiments of the optical switching device.