Control methods for micromirror devices implemented with a single address electrode
First Claim
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1. A method for controlling a micromirror device including a plurality of mirror elements each comprising a micromirror supported on a substrate by an elastic hinge, and an address electrode arranged across a deflection axis of the micromirror, comprisingdeflecting the micromirror by changing a potential to a predetermined waveform for at least one address electrode;
- andwherein the potential is changed to a predetermined waveform by applying the potential having a pulse waveform at a predetermined operational time of the micromirror.
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Abstract
A method for controlling a micromirror device including mirror elements each composed of a micromirror supported on a substrate by an elastic hinge, and a address electrode arranged across the deflection axis of the micromirror comprises deflecting the micromirror by changing a potential to a predetermined waveform for the address electrode.
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Citations
23 Claims
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1. A method for controlling a micromirror device including a plurality of mirror elements each comprising a micromirror supported on a substrate by an elastic hinge, and an address electrode arranged across a deflection axis of the micromirror, comprising
deflecting the micromirror by changing a potential to a predetermined waveform for at least one address electrode; - and
wherein the potential is changed to a predetermined waveform by applying the potential having a pulse waveform at a predetermined operational time of the micromirror. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling a micromirror device including a plurality of mirror elements each comprising a micromirror supported on a substrate by an elastic hinge, and an address electrode arranged across a deflection axis of the micromirror, comprising:
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deflecting the micromirror by changing a potential to a predetermined waveform for at least one address electrode; and wherein said step of changing the potential to a predetermined waveform further comprises a step of applying the potential having multiple levels.
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8. A method for controlling a micromirror device including a plurality of mirror elements each comprising a micromirror supported on a substrate by an elastic hinge, and an address electrode arranged across a deflection axis of the micromirror, comprising:
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deflecting the micromirror by changing a potential to a predetermined waveform for at least one address electrode; and wherein said step of changing the potential to a predetermined waveform further comprises a step of applying the potential to the address electrode as a pulse voltage in order to restore the micromirror to an initial state while the micromirror is moving to the initial state.
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9. A method for controlling a micromirror device including a plurality of mirror elements each comprising a micromirror supported on a substrate by an elastic hinge, and an address electrode arranged across a deflection axis of the micromirror, comprising:
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deflecting the micromirror by changing a potential to a predetermined waveform for at least one address electrode; and wherein said step of changing the potential to a predetermined waveform further comprises a step of decreasing the potential applied to the address electrode in a state immediately preceding an oscillation state for make the micromirror freely oscillate, or reduces the potential of the address electrode to 0V.
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10. A method for controlling a micromirror device including mirror elements each comprising a micromirror supported on a substrate by an elastic hinge controlled by a voltage applied to an address electrode comprising first and second regions, the micromirror is deflected in a direction of the first region by applying a predetermined voltage to the address electrode in an initial non-deflected state, comprising:
deflecting the micromirror in a direction of the second region by changing the voltage applied to the address electrode according to a predetermined waveform. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for controlling a micromirror device including a micromirror supported by an elastic hinge to deflect in a first and a second directions by applying a voltage to an electrode arranged across a deflection axis of the micromirror, the method further comprising:
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deflecting the micromirror in the second direction after drawing the micromirror in the first direction; and changing the voltage applied to the electrode according to a predetermined waveform for deflecting the micromirror corresponding to the variations of predetermined waveform.
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21. A method for controlling a micromirror device including a micromirror supported by an elastic hinge to deflect in a first and a second directions by applying a voltage to an electrode arranged across a deflection axis of the micromirror, the method further comprising:
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deflecting the micromirror in the second direction after drawing the micromirror in the first direction; and applying the voltage applied to the electrode for applying a different a coulomb force to draw the micromirror to the first direction than coulomb force to draw the micromirror to the second direction.
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22. A method for controlling a micromirror device a micromirror supported by an elastic hinge to deflect in a first and a second directions by applying a voltage to an electrode arranged across a deflection axis of the micromirror, the method further comprising:
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deflecting the micromirror in the second direction after drawing the micromirror in the first direction; and applying the voltage to the electrode configured as a single electrode and arranged asymmetrically with respect to the deflection axis of the micromirror for applying the voltage to the electrode or the micromirror.
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23. A method for controlling a micromirror device a micromirror supported by an elastic hinge to deflect in a first and a second directions by applying a voltage to an electrode arranged across a deflection axis of the micromirror, the method further comprising:
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deflecting the micromirror in the second direction after drawing the micromirror in the first direction; and applying the voltage to the electrode configured as a plurality of electrodes arranged asymmetrically with respect to the deflection axis of the micromirror for applying the voltage to the electrode.
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Specification