Devices and methods for protecting IR-VIS sensors from electromagnetic interference
AssigneeThe Boeing Company
InventorTai Anh Lam
Life of this patent
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Abstract
Devices and methods for protecting electro-optical instruments includes a transparent substrate and a conductive film layer on the substrate. The film layer may be perforated with an array of holes and may be configured to attenuate RF/microwave electromagnetic radiation. The devices may include a plurality of optical waveguides having a first end and a second end, wherein the first end of each optical waveguide is disposed over the substrate and passes through a respective hole of the array of holes such that each hole includes at least one optical waveguide. The waveguide may be configured to capture incident light from the second end and guide the incident light to the first end through the hole.
Claims20
A device, comprising:
- a transparent substrate;
- a conductive film layer on the substrate, wherein the film layer is perforated with an array of holes and configured to attenuate RF/microwave electromagnetic radiation;
- and
- a plurality of optical waveguides, each optical waveguide having a first end and a second end, wherein the first end of each optical waveguide is disposed over the substrate and passes through a respective hole of the array of holes such that each hole comprises at least one optical waveguide,
- wherein the optical waveguide is configured to capture incident light from the second end and guide the incident light to the first end through the hole, and
- wherein the second ends of the plurality of optical waveguides are adjacent and abut each other to form a planar optical surface.
A method for forming an electromagnetically protective shield for an optical device, the method comprising:
- providing a transparent substrate;
- providing a conductive film layer on the substrate, wherein the film layer is perforated with an array of holes and configured to attenuate incident RF/microwave electromagnetic radiation;
- and
- providing a plurality of optical waveguides, each optical waveguide having a first end and a second end, wherein the first end of each optical waveguide is disposed over the substrate and passes through a respective hole of the array of holes such that each hole comprises at least one optical waveguide,
- wherein the optical waveguide is configured to capture incident light from the second end and guide the incident light to the first end through the hole, and
- wherein the second ends of the plurality of optical waveguides are adjacent and abut each other to form a planar optical surface.
Dependencies are inferred from the claim text.