Dispersing and polarizing light filter

Details Dispersing and polarizing light filter Dispersing and polarizing light filter

2008-04-08

2008-04-08

Pritchett, Joshua L (Department: 2872)

Optical: systems and elements

Glare or unwanted light reduction

Directional or angular discrimination

C359S614000, C359S454000

Reexamination Certificate

active

11109214

ABSTRACT:
An optical filter includes an array of light-transmissive beads in a matrix of opaque binder that surrounds one portion of the beads to provide light entrances and exit apertures for incident light to pass substantially only through the beads. A polarizing layer is disposed between the apertures and the viewing surface of the filter for improved rejection of ambient light. The polarizing layer transmits linearly polarized image light aligned with the polarization axis while attenuating randomly or orthogonally polarized ambient light, resulting in improved image contrast.

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