WO2007059718A1 - Auslenkbares mikromechanisches element - Google Patents
Auslenkbares mikromechanisches element Download PDFInfo
- Publication number
- WO2007059718A1 WO2007059718A1 PCT/DE2005/002182 DE2005002182W WO2007059718A1 WO 2007059718 A1 WO2007059718 A1 WO 2007059718A1 DE 2005002182 W DE2005002182 W DE 2005002182W WO 2007059718 A1 WO2007059718 A1 WO 2007059718A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- element according
- spring
- elements
- levers
- torsion spring
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0062—Devices moving in two or more dimensions, i.e. having special features which allow movement in more than one dimension
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
Definitions
- the invention relates to deflectable micromechanical elements.
- the deflection can take place translationally along an axis but also by pivoting about an axis.
- the respective axis is aligned in particular orthogonal to the plane of the micromechanical element.
- the deflection can also take place in an oscillating manner.
- drive concepts known per se such as e.g. electrostatic are used.
- Such elements with the suspension in planar technology are produced from a common substrate. They are essentially etched out of a layer in two dimensions.
- this can also be achieved by folding or forming so-called serpentine springs. Such springs bend or twist easily.
- spring elements are used, in particular in the case of micromechanical elements which can be deflected in a translatory manner Application.
- These are, for example, bar springs (four spring elements, eight spring elements, cross spring elements, etc.) / angle springs, meandering springs or serpentine springs.
- a suspension which is formed with at least one spring system is provided on a micromechanical element to be deflected.
- levers are hingedly connected to torsion spring elements. All torsion spring elements are aligned in a common and / or a plurality of mutually parallel axes. At least one torsion spring element is fixed in a fixed clamping.
- Torsion spring elements also form joints between interconnected levers and can be good and easy training with the well-known technologies. They can be made in the form of beams and influenced by compliance with certain cross-sections with respect to their spring force effect. Thus, different cross-sections, as far as the geometry and the cross-sectional dimensioning are concerned, can also be taken into account along their longitudinal axis.
- the levers are formed according to the manufacturing technology from the same substrate and the same material as torsion spring elements. However, they are designed in their cross-sectional geometry so that they have at least in one axial direction a significantly higher mechanical resistance moment, as torsion spring elements.
- the micromechanical element, the levers and also the torsion spring elements can be arranged in a common plane.
- a suspension of a deflectable micromechanical element can be formed with two spring systems which can be of the same design and arranged symmetrically with respect to one another. More than two spring systems should be arranged at equal angular distances from each other and have a corresponding angular orientation.
- Spring systems should also be formed symmetrically with respect to an axis oriented orthogonal to the (n) axis (s) of torsion spring members. This should be arranged centrally between fixed restraints of torsion spring elements. Firm restraints of torsion spring elements should have as large a lever arm as possible and therefore maintain a distance that is at least as great as 2/3 of the extent of the micro-mechanical element in the region in which the respective spring system acts. However, greater distances from such fixed restraints of a spring system are preferable.
- the invention can also be developed advantageously and, in particular, the rigidity in certain axial directions can be increased by additionally connecting levers, which are already connected to torsion spring elements, by means of stiffening elements.
- torsion spring elements In addition to the connection of levers by means of torsion spring elements, these can also be connected to spiral spring elements. Bending spring elements can preferably engage directly on the micromechanical element.
- the invention can be used for sensors but also for actuators. This can be done, for example, as an acceleration sensor, path length modulator or as a pivotable reflective element (micro mirror).
- the invention can be used in confocal microscopes, Fourier transformation spectrometers or in optical coherence tomography (OCT).
- deflectable elements can be mirrors, also semipermeable, masses, the frame of optical elements (optical lenses), a diaphragm, a zone plate, shutter, a diffraction grating or aerodynamic body.
- the invention can also be used as an oscillator in acceleration sensors, in rotation rate sensors, viscosity sensors or as restlessness.
- the invention is characterized over known solutions advantageous in that during the movement deflection-dependent forces need not necessarily be applied by means of additional spring elements.
- a suspension or a spring system can be wholly or partially formed in the form of a pantograph structure.
- the required space requirement can also be reduced.
- Spring systems that can be used in the invention can be connected to other levers that can form a lever structure. These may be formed in conventional form, for example in the form of one or more serpentines. In one possible embodiment, individual levers may also be defined locally so that a bending of such selected levers is possible at the respective positions and these can form bending springs.
- FIG. 1 shows an example of an element according to the invention in two views, wherein the lower representation shows in a side view a micromechanical element deflected in a translatory manner
- FIG. 2 in schematic form, also in two views, a simple spring system for a suspension
- Figure 5 two examples of spring systems with nested, parallel arrangement
- Figure 6 two examples of hinged joints of levers in two views
- Figure 8 two views of an example with a order an axis pivotable micromechanical element.
- FIG. 1 shows an example of an element according to the invention in two views.
- a suspension of a micromechanical element 1 is formed with two spring systems, which are arranged diametrically opposite the micromechanical element 1 and act on the lever 2 'at this.
- the levers 2 ' are connected by means of torsion spring elements 4 with a lever 2 hinged to one side of the lever 2.
- two torsion spring elements 4 are again connected to this and each other levers 2 for an articulated connection.
- the latter lever 2 are inclined at an oblique angle with respect to the axis of Torsionsfeder- elements 4.
- torsion spring elements 4 are present, which are connected on one side with the ends of these levers 2 and held on the other side in fixed grips 3 accordingly.
- the lower diagram shows a deflected micromechanical element 1.
- the translational deflectability is indicated by the corresponding movement axis with the double arrow.
- each of the two spring systems forms a pantograph structure.
- FIG. 2 also shows a simple construction of a spring system in two views.
- a micromechanical element 1 is connected to a first lever 2 '.
- the other end of this lever 2 ' is articulated with a torsion spring element 4 and this in turn connected to a further lever 2.
- This lever 2 and a parallel aligned lever 2 here with the same length and dimensions are hinged to a torsion spring 4.
- a connected to the one lever 2 torsion spring element 4 is held in the fixed clamping.
- FIG. 2 again shows a deflected position of a micromechanical element 1 and the lever 2 pivoted about the longitudinal axes of the torsion spring elements 4.
- FIG. 2 shows, in principle, a simple pantograph suspension.
- FIG. 3 shows four examples each with a spring system on a micromechanical element 1.
- the example shown at the far left essentially corresponds to a spring system, as has also been formed on an example shown in FIG.
- levers 2 oriented at an obliquely inclined angle are in addition to the articulated connection with torsion-spring elements 4 with a stiffening angle. 5 connected.
- levers 2 and 2 'aligned at least partially parallel to one another use levers 2 and 2 'aligned at least partially parallel to one another.
- two of these levers 2 are angled and, in addition to the torsion spring elements 4, are additionally connected to a stiffening element 5 in the example shown on the far right.
- the lateral rigidity can be increased.
- such a spring system is designed symmetrically and the part of the spring system lying within this region forms a pantograph structure, which in turn finds its symmetrical counterpart on the other side.
- FIG. 4 shows more complex formed spring systems on a micromechanical element 1.
- a micromechanical element 1 with a plurality of levers 2 and 2 'as well as with these hingedly connected Torsionsfeder instituten 4 a kind of arrangement, which can be formed from several pantographs provided.
- a pantograph has again been made clear with the area enclosed by dashed lines in the second representation from the right.
- the lever 2 in addition connect to each other. At the far right As shown, two such stiffening elements 5 are formed.
- an additional lever structure can also be added in a manner not shown, which is possible in the form of one and a half pantographs.
- two such structures may be interconnected and juxtaposed. It should be symmetrical, movable parts connected to each other.
- the maximum deflection of the micromechanical element 1 can be increased without the individual levers 2 and 2 'to extend.
- the compactness can be increased.
- FIG. 5 shows two further examples of spring systems which can be used on elements according to the invention.
- stiffening elements 5 are connected symmetrically with levers 2.
- an arrangement of nested panographographical structures is selected. The ends are held parallel.
- a translationally oscillating micromechanical element 1 with only two pantograph structures becomes more stable against tilting, and this embodiment has the advantage over one with more than two suspensions / spring systems, which would also avoid tilting more compact individual elements and overall compactness.
- Torsionsfederettin 4 joints on pantographs and spring systems can be used in two versions. This is illustrated in FIG. 6.
- a torsion spring element 4 is simply connected to two levers 2 on the same end faces. The levers 2 are in the non-aisled state parallel to each other.
- a deflection is shown in the lower left illustration .
- two torsion-spring elements 4 are present.
- a lever 2 and a further torsion spring element 4 are connected to a lever arm, as an example of a stiffening.
- the lower right representation again shows such an embodiment in deflection.
- the advantage of the embodiment shown on the right is an increased lateral rigidity.
- Figure 7 is to be pointed to possibilities of arranging several spring systems, as a suspension for a here formed circular micromechanical element 1.
- two spring systems are diametrically opposed.
- a symmetrical arrangement of three spring systems on such a micromechanical element 1 is shown.
- the spring systems are in same
- levers 2 and 2 ' which in the invention fertil can be used, also any shapes, such as triangular or trapezoidal have. But they should be stiffer than the joints or Torsionsfederetti 4.
- the mass inertia-related dynamic deformations of a micromechanical element 1 pivoted about an axis can be reduced by arranging additional spring elements outside the torsion axis.
- spring systems with pantograph structure are well suited because large deflection can be achieved with low space requirements and linear spring behavior.
- FIG. 1 A corresponding example is shown in FIG.
- two torsion springs 6 are provided on the micromechanical element 1, which lie in the undeflected state in the same plane as the levers 2, 2 'and the torsion spring elements 4.
- the torsion springs 6 are arranged in the torsion axis of the micromechanical element 1.
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Springs (AREA)
- Micromachines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2005/002182 WO2007059718A1 (de) | 2005-11-25 | 2005-11-25 | Auslenkbares mikromechanisches element |
DE112005003758T DE112005003758B4 (de) | 2005-11-25 | 2005-11-25 | Auslenkbares mikromechanisches Element |
CN2005800521563A CN101316789B (zh) | 2005-11-25 | 2005-11-25 | 可偏转微机械元件 |
US12/093,834 US9045329B2 (en) | 2005-11-25 | 2005-11-25 | Micromechanical element which can be deflected |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2005/002182 WO2007059718A1 (de) | 2005-11-25 | 2005-11-25 | Auslenkbares mikromechanisches element |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007059718A1 true WO2007059718A1 (de) | 2007-05-31 |
Family
ID=36686964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/002182 WO2007059718A1 (de) | 2005-11-25 | 2005-11-25 | Auslenkbares mikromechanisches element |
Country Status (4)
Country | Link |
---|---|
US (1) | US9045329B2 (de) |
CN (1) | CN101316789B (de) |
DE (1) | DE112005003758B4 (de) |
WO (1) | WO2007059718A1 (de) |
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DE102008041757B4 (de) * | 2008-09-02 | 2019-01-03 | Robert Bosch Gmbh | Herstellungsverfahren für eine Rotationssensorvorrichtung und Rotationssensorvorrichtung |
US20120056363A1 (en) | 2010-09-03 | 2012-03-08 | Greg Alan Ritter | Leaf spring |
CN102442630B (zh) * | 2010-09-30 | 2015-09-09 | 贺思源 | 一种基于双向或多向静电驱动器的平移旋转机构 |
DE102013225364A1 (de) * | 2013-12-10 | 2015-06-11 | Robert Bosch Gmbh | Kammantrieb mit einem verschwenkbaren Spiegelelement |
US10071903B2 (en) | 2014-05-06 | 2018-09-11 | Mems Drive, Inc. | Low stiffness flexure |
US9621775B2 (en) | 2014-05-06 | 2017-04-11 | Mems Drive, Inc. | Electrical bar latching for low stiffness flexure MEMS actuator |
FR3046223B1 (fr) * | 2015-12-23 | 2018-02-16 | Safran | Systeme de suspension d'une masse mobile comprenant des moyens de liaison de la masse mobile a linearite optimisee |
WO2019009396A1 (ja) | 2017-07-06 | 2019-01-10 | 浜松ホトニクス株式会社 | 光学デバイス |
EP3650907B1 (de) * | 2017-07-06 | 2023-11-22 | Hamamatsu Photonics K.K. | Spiegeleinheit und optisches modul |
WO2019009395A1 (ja) | 2017-07-06 | 2019-01-10 | 浜松ホトニクス株式会社 | 光学デバイス |
EP3650910A4 (de) * | 2017-07-06 | 2021-03-24 | Hamamatsu Photonics K.K. | Optische vorrichtung |
JP7112876B2 (ja) | 2017-07-06 | 2022-08-04 | 浜松ホトニクス株式会社 | 光学デバイス |
WO2019009398A1 (ja) | 2017-07-06 | 2019-01-10 | 浜松ホトニクス株式会社 | 光学デバイス |
EP3650912A4 (de) | 2017-07-06 | 2021-03-24 | Hamamatsu Photonics K.K. | Optische vorrichtung |
US11635613B2 (en) | 2017-07-06 | 2023-04-25 | Hamamatsu Photonics K.K. | Optical device |
DE102017219929B4 (de) | 2017-11-09 | 2019-05-23 | Robert Bosch Gmbh | Mikromechanischer z-Inertialsensor |
CN111344622A (zh) | 2017-11-15 | 2020-06-26 | 浜松光子学株式会社 | 光学器件的制造方法 |
DE102018216611B4 (de) * | 2018-05-22 | 2022-01-05 | Infineon Technologies Ag | MEMS-Bauelement mit Aufhängungsstruktur und Verfahren zum Herstellen eines MEMS-Bauelementes |
US11048076B2 (en) | 2019-06-28 | 2021-06-29 | Hamamatsu Photonics K.K. | Mirror unit, and method for manufacturing the mirror unit |
DE102020107180A1 (de) * | 2020-03-16 | 2021-09-16 | fos4X GmbH | Faseroptischer Beschleunigungssensor |
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2005
- 2005-11-25 WO PCT/DE2005/002182 patent/WO2007059718A1/de active Application Filing
- 2005-11-25 DE DE112005003758T patent/DE112005003758B4/de active Active
- 2005-11-25 US US12/093,834 patent/US9045329B2/en active Active
- 2005-11-25 CN CN2005800521563A patent/CN101316789B/zh active Active
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Also Published As
Publication number | Publication date |
---|---|
DE112005003758A5 (de) | 2008-08-28 |
CN101316789A (zh) | 2008-12-03 |
CN101316789B (zh) | 2012-07-18 |
DE112005003758B4 (de) | 2011-12-08 |
US20080284078A1 (en) | 2008-11-20 |
US9045329B2 (en) | 2015-06-02 |
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