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US 8,300,158 B2Granted
Polarization element and projector
AssigneeSeiko Epson Corporation
InventorDaisuke Sawaki
Life of this patent
Estimating the term…
Abstract
A polarization element includes: a substrate; and a plurality of grid sections arranged on the substrate, wherein the grid sections each have protruding sections and recessed sections alternately arranged in a longitudinal direction of the grid sections at a pitch shorter than a wavelength of incident light, and an arrangement pitch of the protruding sections is different between the grid sections adjacent to each other.
Claims7
A polarization element comprising:
- a substrate;
- and
- a plurality of grid sections arranged on the substrate,
- wherein the grid sections each have protruding sections and recessed sections alternately arranged in a longitudinal direction of the grid sections at a pitch shorter than a wavelength of incident light, and
- an arrangement pitch of the protruding sections is different between the grid sections adjacent to each other.
2 more elements
Dependencies are inferred from the claim text.