Light modulating microdevice and method
AssigneeNational Optics Institute
InventorsNicholas R. Swart, Hubert Jerominek
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AssigneeNational Optics Institute
InventorsNicholas R. Swart, Hubert Jerominek
Estimating the term…
The invention relates to spatial light modulators (SLM) for amplitude and phase modulation of incident light. A "flexure" hinge which is provided between the SLM's substrate and micromirror comprises integral hinged sections which allow for the micromirror to tilt or to move in a piston-like fashion relative to the substrate in response to an electrostatic force. The hinge is particularly advantageous for large mirrors. In addition, the hinge can provide improved heat sinking capability over previously reported SLM hinge designs based on torsion bars and cantilever beams. The flexure hinge has sufficient mechanical flexibility that the SLM actuation voltage required is not excessively high. The flexure hinge has many applications, the preferred ones being a SLM for modulating high-energy beams and a SLM for optical channel switching.
A hinge for supporting a mirror in a light modulator, comprising at least one arm means adapted to be provided at an upper end thereof with mirror means, said arm means being adapted to extend substantially under the mirror means and being displaceable between deformed and extended positions thereby allowing for the displacement of the mirror means.
A mirror for light modulators, comprising light receiving means, hinge means being adapted to be provided at an upper end thereof with said light receiving means, said hinge means being adapted to extend substantially under said light receiving means and being displaceable between deformed and extended positions thereby allowing for the displacement of said light receiving means.
A light modulator comprising mirror means, substrate means provided with electrode means, and hinge means extending between said substrate means and said mirror means and substantially under said mirror means, said hinge means being displaceable between deformed and extended positions for allowing for the displacement of said mirror means.
A method for producing a light modulator, comprising the steps of:
A method for producing a light modulator, comprising the steps of:
A method for producing a light modulator, comprising the steps of:
Dependencies are inferred from the claim text.