Micromechanical component, light-deflecting device, and manufacturing methods for a micromechanical component and a light-deflecting device
AssigneeRobert Bosch GmbH
InventorsReinhold Fiess, Joerg Muchow
Life of this patent
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Abstract
A micromechanical component includes: a mirror element with a reflective surface on a first outer side of the mirror element, which is designed in such a way that a first potential is applied to a first electrode surface on a second outer side of the mirror element opposite from the first outer side; a counterelectrode situated adjacent to the second outer side of the mirror element and which is designed in such a way that a second potential is applied to a second electrode surface of the counterelectrode; and a voltage control unit configured to apply a temporally varying voltage signal between the first electrode surface and the second electrode surface
Claims12
A micromechanical component, comprising:
- a mirror element having a reflective surface on a first outer side of the mirror element, wherein a first potential is applied to a first electrode surface on a second outer side of the mirror element facing opposite from the first outer side;
- a counterelectrode situated adjacent to the second outer side of the mirror element, wherein a second potential is applied to a second electrode surface of the counterelectrode;
- and
- a voltage control unit coupled to the first electrode surface of the mirror element via a first contact element, and to the second electrode surface of the counterelectrode via a second contact element, wherein the voltage control unit is configured to apply a temporally varying voltage signal between the first electrode surface and the second electrode surface.
A light-deflecting device, comprising:
- a micromechanical component including:
- a mirror element having a reflective surface on a first outer side of the mirror element, wherein a first potential is applied to a first electrode surface on a second outer side of the mirror element facing opposite from the first outer side;
- a counterelectrode situated adjacent to the second outer side of the mirror element wherein a second potential is applied to a second electrode surface of the counterelectrode;
- and
- a voltage control unit coupled to the first electrode surface of the mirror element via a first contact element, and to the second electrode surface of the counterelectrode via a second contact element, wherein the voltage control unit is configured to apply a temporally varying voltage signal between the first electrode surface and the second electrode surface;
- and
- a mirror surface configured to be displaced about at least one rotational axis, wherein the mirror surface is situated in such a way that a light beam reflected on the reflective surface of the micromechanical component strikes the mirror surface.
A manufacturing method for a micromechanical component, comprising:
- forming a mirror element having a reflective surface on a first outer side of the mirror element, a first electrode surface being formed on a second outer side of the mirror element which faces opposite the first outer side;
- placing a counterelectrode adjacent to the second outer side of the mirror element, the counter electrode having a second electrode surface;
- and
- forming a voltage control unit and coupling the voltage control unit to the first electrode surface of the mirror element via a first contact element, and coupling the voltage control unit to the second electrode surface of the counterelectrode via a second contact element, the voltage control unit being configured to apply, during operation of the micromechanical component, a temporally varying voltage signal between the first electrode surface and the second electrode surface.
A manufacturing method for a light-deflecting device, comprising:
- manufacturing a micromechanical component by:
- forming a mirror element having a reflective surface on a first outer side of the mirror element, a first electrode surface being formed on a second outer side of the mirror element which faces opposite the first outer side;
- placing a counterelectrode adjacent to the second outer side of the mirror element, the counter electrode having a second electrode surface;
- and
- forming a voltage control unit and coupling the voltage control unit to the first electrode surface of the mirror element via a first contact element, and coupling the voltage control unit to the second electrode surface of the counterelectrode via a second contact element, the voltage control unit being configured to apply, during operation of the micromechanical component, a temporally varying voltage signal between the first electrode surface and the second electrode surface;
- placing the micromechanical component in a housing of the light-deflecting device;
- and
- placing a mirror surface in the housing of the light-deflecting device in such a way that a light beam reflected on the reflective surface of the micromechanical component strikes the mirror surface, wherein the mirror surface is configured to be displaced about at least one rotational axis.
Dependencies are inferred from the claim text.