Optical: systems and elements – Polarization without modulation – Polarization by birefringence
Reexamination Certificate
2005-03-29
2010-02-02
Shafer, Ricky D (Department: 2872)
Optical: systems and elements
Polarization without modulation
Polarization by birefringence
C351S049000, C351S163000, C351S165000
Reexamination Certificate
active
07656581
ABSTRACT:
The invention concerns a transparent and polarizing viewing element (2) divided into several zones (2a, 2b). At least one of the zones (2a) is associated with a light polarizing filter. The light passing through the optical surface is affected differently for two of said zones (2a, 2b) depending on the polarizing direction of said light. The polarizing filter is obliquely oriented relative to a horizontal direction (H) in the operational position of the element (2; 5), with an angle between the filter orientation and said horizontal direction of 90 degrees and of 0 degree.
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Essilor International (compagnie Generale D'optique)
Occhiuti Rohlicek & Tsao LLP
Shafer Ricky D
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