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US 5,940,150 AGranted
Electro-optical glazing structures having total-reflection and transparent modes of operation for use in dynamical control of electromagnetic radiation
AssigneeReveo, Inc.
InventorsSadeg M. Faris, Le Li
Life of this patent
Estimating the term…
Abstract
Electro-optical glazing structures having total-reflection and semi-transparent and totally-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications.
Claims27
An electro-optical glazing structure having reflection and transmission modes of operation for selectively reflecting and transmitting electromagnetic radiation, respectively, said electro-optical glazing structure comprising:
- an electro-optical glazing panel of laminated construction, having first and second optical states of operation, wherein said electro-optical glazing panel comprises at least one cholesteric liquid crystal (CLC) electromagnetic radiation polarizing panel, and wherein the CLC electromagnetic radiation polarizing panel comprises a CLC material with a non-linear distribution of the CLC throughout the electromagnetic radiation polarizing panel;
- and
- optical state switching means for switching said electro-optical glazing panel to said first optical state of operation in order to induce said electro-optical glazing structure into said reflection mode of operation, and for switching said electro-optical glazing panel to said second optical state of operation in order to induce said electro-optical glazing structure into said transmission mode of operation.
A stereoscopic 3-D viewing device in the form of eyeglasses, comprising:
- a pair of optical elements positionable before the eyes of a user of said eyeglasses, each said optical element including an electro-optical glazing structure having reflection and transmission modes of operation for selectively reflecting and transmitting electromagnetic radiation, respectively,, said electro-optical gazing structure comprising:
- an electro-optical glazing panel of laminated construction, having first and second optical states of operation;
- and
- optical state switching means for switching said electro-optical glazing panel to said first optical state of operation in order to induce said electro-optical glazing structure into said reflection mode of operation where said electro-optical glazing panel reflects circularly polarized radiation, and for switching said electro-optical glazing panel to said second optical state of operation in order to induce said electro-optical glazing structure into said transmission mode of operation,
- whereby said eyeglasses can control electromagnetic radiation during stereoscopic 3-D viewing or monoscopic 2-D viewing of displayed images (i.e. virtual world viewing), or during stereoscopic viewing of real world objects.
2 more elements
A stereoscopic 3-D viewing device in the form of eyeglasses, comprising:
- a pair of optical elements positionable before the eyes of a user of said eyeglasses, each said optical element including an electro-optical glazing structure having reflection and transmission modes of operation for selectively reflecting and transmitting electromagnetic radiation, respectively, said electro-optical glazing structure comprising:
- an electro-optical glazing panel of laminated construction, having first and second optical states of operation;
- and
- optical state switching means for switching said electro-optical glazing panel to said first optical state of operation in order to induce said electro-optical glazing structure into said reflection mode of operation, and for switching said electro-optical glazing panel to said second optical state of operation in order to induce said electro-optical glazing structure into said transmission mode of operation,
- whereby said eyeglasses can control electromagnetic radiation during stereoscopic 3-D viewing or monoscopic 2-D viewing of displayed images (i.e. virtual world viewing), or during stereoscopic viewing of real world objects.
2 more elements
Dependencies are inferred from the claim text.