Optical: systems and elements – Polarization without modulation – Depolarization
Reexamination Certificate
2006-05-16
2006-05-16
Robinson, Mark A. (Department: 2872)
Optical: systems and elements
Polarization without modulation
Depolarization
C359S490020
Reexamination Certificate
active
07046443
ABSTRACT:
The present invention provides an anisotropic light scattering element that is further improved in controlling of the viewing angle and also reduced in the thickness. The anisotropic light scattering element has an anisotropy in the scattering intensity, and includes an anisotropic light scattering layer having an anisotropy in the light scattering intensity depending on the polarization direction of incident linearly polarized light, and a birefringent layer having a phase difference of less than 1/10 wavelength with respect to incident light in a normal direction and a phase difference with respect to incident light in a direction inclined from the normal that is different from the phase difference with respect to incident light in a normal direction. The birefringent layer develops a phase difference with respect to incident light in a direction inclined from the normal.
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Fineman Lee
Nitto Denko Corporation
Robinson Mark A.
Westerman Hattori Daniels & Adrian LLP
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