发明名称 Polarizing element and liquid crystal projector
摘要 A polarizing plate having a desired extinction ratio in a visible light region and light resistance against intense light, and a liquid crystal projector using the above polarizing plate are provided. A polarizing element includes a substrate transparent to visible light, and inorganic particle layers in each of which inorganic particles are linearly disposed, the inorganic particle layers being disposed on the substrate at predetermined intervals to form a wire grid structure, the inorganic particles each have an elliptical shape having a major axis of the inorganic particles in the disposed direction and minor axis in a direction perpendicular thereto.
申请公布号 USRE45642(E1) 申请公布日期 2015.08.04
申请号 US201313912572 申请日期 2013.06.07
申请人 Sony Corporation 发明人 Takada Akio
分类号 G02B5/30;G03B21/00;H04N5/74 主分类号 G02B5/30
代理机构 K&L Gates LLP 代理人 K&L Gates LLP
主权项 1. A polarizing element comprising: a first polarizing element including a first substrate transparent to visible light, and first inorganic particle layers in each of which first inorganic particles are linearly disposed on the first substrate, the first inorganic particle layers being disposed on the first substrate at predetermined intervals to form a wire grid structure, wherein the first inorganic particles each have an elliptical shape with a major axis in a disposed direction and a minor axis in a direction perpendicular thereto, wherein the first polarizing element further includes convex portions, which are made of a material transparent to visible light and which extend in one direction, provided on the first substrate, wherein the first inorganic particle layers are each provided on a top part or at least one of sidewall parts of each of the convex portions; and a second polarizing element including a second substrate transparent to visible light, and second inorganic particle layers in each of which second inorganic particles are linearly disposed on the second substrate, the second inorganic particle layers being disposed on the second substrate at predetermined intervals to form a wire grid structure, wherein the second inorganic particles each have an elliptical shape anisotropic properties in which a diameterwith a major axis in a disposed direction is long and a diameterminor axis in a direction perpendicular thereto is short, wherein the second polarizing element further includes reflection layers of strip-shaped thin films, which are made of a metal and which extend in one direction, provided on the second substrate at predetermined intervals;, and first dielectric layers provided on the reflection layers, wherein the second inorganic particle layers are provided on the first dielectric layers at positions corresponding to those of the strip-shaped thin films, and wherein the first and second substrates are adhered to each other at rear surfaces thereof.
地址 Tokyo JP