EP3785053A1 - Agencement de lentille à lentille déformable et système optique le comprenant - Google Patents

Agencement de lentille à lentille déformable et système optique le comprenant

Info

Publication number
EP3785053A1
EP3785053A1 EP18733804.1A EP18733804A EP3785053A1 EP 3785053 A1 EP3785053 A1 EP 3785053A1 EP 18733804 A EP18733804 A EP 18733804A EP 3785053 A1 EP3785053 A1 EP 3785053A1
Authority
EP
European Patent Office
Prior art keywords
lens arrangement
shape
memory alloy
bending arm
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18733804.1A
Other languages
German (de)
English (en)
Inventor
Marko Eromaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP3785053A1 publication Critical patent/EP3785053A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F03G7/065—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like using a shape memory element
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification

Definitions

  • the disclosure relates to a lens arrangement comprising a chamber with a volume of transparent liquid, a method of operating such a lens arrangement, and to an optical system comprising two such lens arrangements.
  • piezo SIDM Smooth Impact Drive Mechanism
  • VCM Vehicle Coil Motor, magnet-coil
  • actuation systems are used to drive two or more lens groups, at least one group for zoom and one group for focus.
  • Such arrangements typically require long travel distances, e.g. several millimetres, depending on the zoom factor, and two or more actuators are typically needed for discretely moving the lens groups for zoom and focus, respectively.
  • actuators are typically needed for discretely moving the lens groups for zoom and focus, respectively.
  • Such arrangements are space consuming, and adjustment of such arrangements are slow, and noisy, as they comprise moving the actual lens.
  • Liquid lenses operate on the principle of deforming the lens as opposed to moving the lens.
  • Prior art discloses such a liquid lens, comprising a liquid chamber, being deformed by means of a change in the volume of liquid located within the liquid chamber. Liquid is transferred into, or from, the liquid chamber via tubes connected to a further chamber. A piston is arranged within said further chamber, and movement of the piston causes movement of the liquid due to the volumetric change caused by the piston.
  • the piston is operated by the above-mentioned VCM (magnet-coil) based actuation systems.
  • VCM magnet-coil
  • Such an arrangement is space consuming, and furthermore, the use of a VCM actuation system limits the amount of feree which can be generated.
  • VCM actuation system Reducing the size of a VCM actuation system leads to thermal and force generating problems, since a VCM actuation system requires a specific size in order to be able to generate sufficient force and in order to allow heat generated by the operating current to be dissipated. For these reasons, the VCM actuation system is conventionally arranged outside of the optical system.
  • a lens arrangement comprising a chamber filled with a volume of transparent liquid, the chamber being delimited by walls, at least one of the walls being elastic, at least another one of the walls being a first transparent wall, the first transparent wall being elastic, a second transparent wall being placed opposite to the first transparent wall, the chamber being T-shaped or L-shaped and comprising a first wing delimited by the first transparent wall and by the second transparent wall, and a second wing delimited by the elastic wall.
  • Such a solution allows for a lens arrangement which is as compact as possible while still comprising all necessary functions.
  • the branched shape of the lens arrangement allows it to accommodate a relatively large volume of liquid in relation to the external dimensions of the lens arrangement, the large volume of liquid, in turn, facilitating sufficient displacement of the first transparent wall in order for the lens arrangement to provide proper zoom and focus capabilities.
  • first wing and the second wing are arranged at a right angle to one another, facilitating maximum possible displacement of the elastic wall.
  • first wing and the second wing are arranged at a right angle to one another, facilitating maximum possible displacement of the elastic wall.
  • the lens arrangement further comprises an actuator configured to deform the elastic wall, allowing a simple and efficient way of displacing the elastic wall as well as the first transparent wall.
  • a rigid plate is associated with the at least one elastic wall, for engaging with the actuator, reinforcing the elastic wall such that it is not damaged by being in contact with the actuator.
  • the actuator is configured to at least one of push the elastic wall into the chamber and/or pull the elastic wall away from the chamber, allowing the actuator to travel an as short distance as possible outside of the chamber.
  • the actuator comprises at least one shape-memory alloy member, facilitating an efficient yet structurally simple actuator.
  • the actuator comprises at least one pair of parallel arranged shape-memory alloy members, allowing the actuator to travel bi-directionally.
  • the lens arrangement further comprises an electrically conductive bending arm connected to the at least one shape- memory alloy member, a first end of the bending arm being fixed, and a second end of the bending arm being arranged to move freely and to engage with the elastic wall or the rigid plate, providing support to the shape-memory alloy members.
  • the bending arm is arranged between a pair of the shape-memory alloy members in the same plane, and wherein one end of the bending arm is arranged to move freely in the plane upon being pulled by one of the shape-memory alloy members, providing a return force to the actuator such that the actuator returns to a neutral position when the actuator is deactivated.
  • the lens arrangement further comprises electric couplings connecting to the one or more shape-memory alloy members and the bending arm being configured to conduct an amount of electric current through one of the shape-memory alloy members and the bending arm, so that the one shape- memory alloy member contracts along its length, activating the actuator and allowing it to travel a desired distance in response to the amount of current transferred.
  • the at least one shape- memory alloy member is a wire, rod, or strip with a circular, triangular, rectangular, or polygonal cross-section, facilitating an as space efficient yet strong shape-memory alloy member as possible.
  • an optical system comprising a first lens arrangement, a second lens arrangement, the first lens arrangement and the second lens arrangement being arranged so that the first transparent wall and the second transparent wall of both the first lens arrangement and the second lens arrangement are aligned along a common optical axis.
  • the first lens arrangement and the second lens arrangement are arranged between an image sensor and a prism, with the image sensor and the prism aligned along the common optical axis, facilitating an as space efficient optical system as possible.
  • a method of operating a lens arrangement comprising providing a lens arrangement, providing a bending arm connected to the one or more shape-memory alloy members, a first end of the bending arm being fixed, and a second end of the bending arm being arranged to move freely and to engage with the elastic wall or the rigid plate, providing at least one electric coupling connecting to the one or more shape-memory alloy members, selectively conducting electric current via the at least one electric coupling through one of the at least one shape-memory alloy members, causing an increase in the temperature of the shape-memory alloy member, leading to a contraction along the length of the shape alloy member, thereby displacing the freely moving end of the bending arm and causing it to deform the elastic wall, thereby changing the shape of the first transparent wall of the lens arrangement.
  • Such a method facilitates the operation of a lens arrangement which is as compact as possible while still comprising all necessary functions.
  • the method provides a simple and efficient way of generating sufficient displacement of a chamber wall in order for the lens arrangement to provide proper zoom and focus capabilities.
  • an actuator comprising a bending arm, a first elongated SMA member and a second elongated SMA member, both having a first end and a second end, the first and second elongated SMA members being spaced parallel with the bending arm with the first and second elongated SMA members on opposite sides of the bending arm, a first support longitudinally spaced from a second support, the first support being secured to the bending arm and to the first ends of both SMA members, the second support being secured to the bending arm and to the second ends of both SMA members, a first electric coupling connecting to the first end of the first SMA member for conducting electric current through the first SMA member, a second electric coupling connecting to the first end of the second SMA member for conducting electric current through the second SMA member, and a third electric coupling between the bending arm and both second ends of the elongated SMA members.
  • Such an actuator has sufficient range of motion, in two travel directions, while still being compact and comprising few
  • the bending arm is flexible and configured to return to an original state after being bent.
  • the first SMA member and the second SMA member are configured to contract when heated by an electric current running through the SMA member concerned.
  • the first SMA member and the second SMA member are configured to relax when cooling down after ended heating by an electric current running through the SMA member concerned.
  • the first support is configured to be secured to another entity.
  • At least one of the first, second, and third electric couplings comprise a crimp.
  • either the first end of the bending arm is fixed and the second end of the bending arm is movable, or the first end of the bending arm is movable and the second end of the bending arm is fixed.
  • the free end of the bending arm is configured to actuate another entity.
  • the actuator comprises a controller configured for selectively conducting electric current through either the first SMA member or through the second SMA member.
  • Fig. 1 is a sectional view of a lens arrangement according to an embodiment in a first state
  • Fig. 2 is a sectional view of the lens arrangement of Fig. 1 in a second state
  • Fig. 3 is a sectional view of the lens arrangement of Fig. 1 in a third state
  • Fig. 4 is an elevated view of an optical system according to an embodiment with a lens arrangement of Fig. 1 ,
  • Fig. 5 is a top view of the optical system of Fig. 4,
  • Fig. 6 is a side view of the optical system of Fig. 4,
  • Fig. 7 is an elevated view of an actuator and a lens arrangement of the optical system of Fig. 4
  • Fig. 8 is an elevated view of an actuator according to an embodiment
  • Fig. 9 is a side view of the actuator of Fig. 8,
  • Fig. 10 is a top view of the actuator of Fig. 8,
  • Fig. 11 is an elevated view of the actuator of Fig. 8 without its base
  • Fig. 12 is a side view of an actuator according to another embodiment
  • Fig. 13 is an elevated view of the actuator of Fig. 12,
  • Fig. 14 is a is a diagrammatic side view of an actuator according to another embodiment in a first state
  • Fig. 15 is a diagrammatic side view of the actuator of Fig. 14 in a second state.
  • Figs. 1 to 3 show a lens arrangement 10 comprising a chamber 1 filled with a volume of transparent liquid.
  • the chamber 1 is delimited by a plurality of walls 3, 4, 5 forming a closed housing 2.
  • At least one of the walls 3 is elastic.
  • At least one further wall is a first transparent wall 4 which is also elastic.
  • a second transparent wall 5 is placed opposite to the first transparent wall 4.
  • the housing 2 and the chamber 1 is preferably T-shaped or L- shaped, and comprises a first wing 7 delimited by the first transparent wall 4 and by the second transparent wall 5, and a second wing 8 delimited by the elastic wall 3.
  • the first transparent wall 4 is arranged such that it extends along a direction perpendicular to the optical axis of the lens arrangement, and the elastic wall 3 is arranged such that it extends along a direction parallel to the optical axis of the lens arrangement, and perpendicular to the first transparent wall 4.
  • the first transparent wall 4 and the second transparent wall 5 extend in parallel, as shown in Fig. 2.
  • Figs. 1 to 3 show a T-shaped chamber 1 , wherein the horizontally extending leg of the T corresponds to the second wing 8, and the vertically extending leg of the T corresponds to the first wing 7.
  • the two wings 7, 8 are interconnected such that liquid can move between the two wings without obstruction.
  • Each wing 7, 8 comprises at least one elastic wall, such that the internal volume of each wing can change in response to external influence, as shown in Figs. 1 and 3. This will be discussed in more detail further below.
  • the first wing 7 and the second wing 8 are preferably arranged at a right angle to one another, however, any other suitable angle would be possible.
  • the elastic wall 3 may be provided with a rigid plate 9.
  • the rigid plate 9 extends in parallel with the elastic wall 3, preferably across a center section of the elastic wall 3. Hence, the center section of the elastic wall 3 is reinforced while the side sections of the elastic wall 3 can expand and contract in response to movement of an actuator 20 engaging with the elastic wall 3/rigid plate 9 and being configured to deform the elastic wall 3.
  • the rigid plate 9 on the elastic wall provides a rigid support for the actuator 20. Specifically the actuator is configured to engage the rigid plate and move said rigid plate and thus the elastic wall uniformly forward and backwards.
  • an area of the elastic wall corresponding to the area of the rigid plate can be moved forward and backwards along a direction perpendicular to the optical axis of lens arrangement, while a portion of the elastic wall surrounding the rigid plate 9 is deformed to allow the movement.
  • the rigid plate 9 may be fixed to the elastic wall so as to produce, when moved by the actuator 20, a corresponding deformation of the elastic wall to produce a change in the volume of the second wing 8.
  • the actuator 20 is bi-directional and configured to push the elastic wall 3 into the chamber 1 as well as pull the elastic wall 3 away from the chamber 1.
  • the internal volume of the second wing 8 decreases, and liquid is pushed from the second wing 8 into the first wing 7, increasing the internal volume of the first wing 7.
  • the elastic wall 3 is pulled from the chamber 1 , as shown in Fig. 3, the internal volume of the second wing 8 increases, and liquid is pulled from the first wing 7 into the second wing 8, decreasing the internal volume of the first wing 7.
  • the actuator 20 comprises at least one shape-memory alloy member 11 , 12, as shown in Figs 7 to 15.
  • the shape-memory alloy member 1 1 , 12 may be a wire, rod, or strip with a circular, triangular, rectangular, or polygonal cross-section.
  • the actuator 20 comprises at least one pair of parallel arranged shape-memory alloy members 11 , 12.
  • the actuator 20 further comprises an electrically conductive bending arm 13 which is connected to the shape-memory alloy members 1 1 , 12.
  • the first end 14 of the bending arm 13 is fixed, e.g. to a first support 24, and the opposite second end 15 of the bending arm 13 is arranged to move freely and to engage with the elastic wall 3 or the rigid plate 9 (also shown in Figs. 7 and 8).
  • the first end 14 of the bending arm 13 may be movable and the second end 15 of the bending arm 13 fixed.
  • the free end of the bending arm 13 is configured to actuate another entity such as the above-mentioned elastic wall 3.
  • the bending arm 13 is flexible and configured to return to its original state, shown in Fig. 14, after being bent, shown in Fig. 15.
  • the bending arm 13 is arranged between a pair of shape-memory alloy members 1 1 , 12 in the same plane, and one end of the bending arm 13 is arranged to move freely in the plane upon being pulled by one of the shape-memory alloy members, see Figs. 7 to 1 1.
  • the second end 15 of the bending arm 13 extends perpendicular to the first end of the bending arm 13.
  • the second end 15 of the bending arm 13 extends in parallel with, but in an opposite direction of, the first end of the bending arm 13.
  • Electric couplings 21 , 22 connect an electrical supply to the shape-memory alloy members 11 , 12 and the bending arm 13 being configured to conduct an amount of electric current through one of the shape-memory alloy members 11 , 12 and the bending arm 13.
  • the member contracts along its length, and as a result thereof the bending arm 13 is bent in a direction towards the electrically activated shape-memory alloy member 1 1 , 12.
  • the bending arm 13 When activating shape-memory alloy member 11 , the bending arm 13 is bent in a direction away from the elastic wall 3, pulling the elastic wall 3 from the chamber 1.
  • each of the shape-memory alloy members 1 1 , 12 are configured to contract when heated by an electric current running through the shape-memory alloy member 1 1 ,
  • each of the shape-memory alloy members 1 1 ,12 are configured to relax when cooling down after ending the heating made by an electric current running through the shape-memory alloy member 11 , 12 concerned, i.e. when electric current is no longer supplied to the shape-memory alloy member 1 1 ,12.
  • actuator 20 A more detailed description of the actuator 20 is provided in the following.
  • the actuator 20 comprises a first elongated shape-memory alloy member 1 1 and a second elongated shape-memory alloy member 12, both having a first end and a second end.
  • the first elongated shape-memory alloy member 1 1 and a second elongated shape-memory alloy member 12 are spaced and extend in parallel with the bending arm
  • first shape-memory alloy member 1 1 and the second shape-memory alloy member 12 extend on opposite sides of the bending arm 13.
  • the first ends of the shape-memory alloy members 1 1 , 12 and the first end 14 of the bending arm 13 may also be connected to an actuator housing 17.
  • the actuator 20 is further provided with a first support 24, configured to be secured to another entity such as the housing of an electronic device or a printed circuit board.
  • the actuator 20 is also provided with a second support 23, the second support 23 being longitudinally spaced from the first support in the direction of the bending arm 13.
  • the first support 24 is secured to the bending arm 13 and to the first ends of both shape- memory alloy members 1 1 , 12.
  • the second support 23 is secured to the bending arm 13 and to the second ends of both shape-memory alloy members 1 1 , 12.
  • a first electric coupling 21 connects the electrical supply to the first end of the first shape-memory alloy member 1 1 for conducting electric current through the first shape- memory alloy member 1 1.
  • a second electric coupling 22 connects the electrical supply to the first end of the second shape-memory alloy member 12 for conducting electric current through the second shape-memory alloy member 12.
  • a third electric coupling 23 arranged between the bending arm 13 and both second ends of the shape-memory alloy members 1 1 , 12. At least one of the first electric coupling 21 , the second electric coupling 22, and the third electric coupling 23 comprises a crimp.
  • the actuator 20 may further comprise a controller configured for selectively conducting electric current through either the first shape-memory alloy member 1 1 or through the second shape-memory alloy member 12.
  • the present disclosure further relates to a method of operating a lens arrangement 10 such as that described above.
  • the method comprises providing a lens arrangement 10 and an actuator 20.
  • the actuator 20 is provided by means of providing a bending arm 13 connected to one or more shape-memory alloy members 1 1 ,12.
  • the first end 14 of the bending arm 13 is fixed, and the second end 15 of the bending arm 13 is arranged to move freely and to engage with the elastic wall 3 or the rigid plate 9 of the lens arrangement 10.
  • the method comprises providing at least one electric coupling 21 , 22 connecting to the one or more shape-memory alloy members 1 1 , 12.
  • Electric current is selectively conducted via the at least one electric coupling 21 , 22 through one of the shape-memory alloy members 1 1 ,12, causing an increase in the temperature of the shape-memory alloy member 1 1 ,12, leading to a contraction along the length of the shape alloy member 1 1 , 12.
  • the freely moving end 14 of the bending arm 13 is displaced, causing it to deform the elastic wall 3 and thereby changing the shape of the first transparent wall 4 of the lens arrangement 10.
  • the present disclosure further relates to an optical system comprising two lens arrangements 10, 10’, see Figs. 4 to 6.
  • the optical system comprises a first lens arrangement 10 and a second lens arrangement 10’.
  • the first lens arrangement 10 and the second lens arrangement 10’ are arranged so that the first transparent wall 4 and the second transparent wall 5 of both the first lens arrangement 10 and the second lens arrangement 20 are aligned along a common optical axis.
  • the first lens arrangement 10 and the second lens arrangement 10’ may be arranged between an image sensor 19 and a prism 18, with the image sensor 19 and the prism 18 being aligned along the common optical axis.
  • the optical system may comprise a first lens group 6 and a second lens group 16, arranged between the image sensor 19 and the prism 18.
  • the first lens arrangement 10 is arranged between the first lens group 6 and the second lens group 16, and the second lens arrangement 10’ is arranged between the second lens group 16 and the prism 18.
  • a computer program may be stored/distributed on a suitable medium, such as an optical storage medium or a solid-state medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lens Barrels (AREA)

Abstract

L'invention concerne un agencement de lentille comprenant une chambre remplie d'un volume de liquide transparent, au moins une desdites parois de la chambre étant transparente et élastique, ladite chambre étant en forme de T ou en forme de L et comprenant une première aile et une seconde aile. La forme ramifiée de l'agencement de lentille lui permet d'accueillir un volume de liquide relativement grand par rapport aux dimensions externes de l'agencement de lentille.
EP18733804.1A 2018-06-11 2018-06-11 Agencement de lentille à lentille déformable et système optique le comprenant Pending EP3785053A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/065360 WO2019238205A1 (fr) 2018-06-11 2018-06-11 Agencement de lentille à lentille déformable et système optique le comprenant

Publications (1)

Publication Number Publication Date
EP3785053A1 true EP3785053A1 (fr) 2021-03-03

Family

ID=62716038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18733804.1A Pending EP3785053A1 (fr) 2018-06-11 2018-06-11 Agencement de lentille à lentille déformable et système optique le comprenant

Country Status (3)

Country Link
EP (1) EP3785053A1 (fr)
CN (1) CN112236692B (fr)
WO (1) WO2019238205A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3903130B1 (fr) * 2018-12-28 2023-06-07 Nextlens Switzerland AG Système optique comprenant une lentille ayant une longueur focale réglable
WO2022089712A1 (fr) * 2020-10-26 2022-05-05 Huawei Technologies Co., Ltd. Dispositif de stabilisation d'image optique et appareil comprenant un tel dispositif
CN114442255B (zh) * 2022-02-21 2024-02-09 维沃移动通信有限公司 镜头模组及电子设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7646544B2 (en) * 2005-05-14 2010-01-12 Batchko Robert G Fluidic optical devices
EP1812813A4 (fr) * 2004-11-05 2008-04-09 Univ California Systèmes à lentilles adaptatives fluidiques avec systèmes de pompe
US7986465B1 (en) * 2007-03-01 2011-07-26 Rhevision Technology, Inc. Systems and methods for effecting zoom and focus using fluidic adaptive lenses
EP2034338A1 (fr) * 2007-08-11 2009-03-11 ETH Zurich Système de lentille liquide
US8087778B2 (en) * 2009-02-13 2012-01-03 Adlens Beacon, Inc. Variable focus liquid filled lens mechanism
JP2011008121A (ja) * 2009-06-26 2011-01-13 Sony Corp 可変焦点レンズ、カメラモジュール及び電子機器
KR101089991B1 (ko) * 2009-11-20 2011-12-05 삼성전기주식회사 카메라 모듈 및 렌즈 이송 장치
JP5430413B2 (ja) * 2010-01-07 2014-02-26 富士フイルム株式会社 可変焦点レンズ及びその駆動方法
WO2013046934A1 (fr) * 2011-09-30 2013-04-04 株式会社日立ハイテクノロジーズ Élément optique, son procédé de fabrication et appareil d'inspection de forme
EP2869097A1 (fr) * 2013-11-01 2015-05-06 Optotune AG Dispositif optique accordable
KR20150058971A (ko) * 2013-11-21 2015-05-29 삼성전자주식회사 광학 줌 프로브
EP3062172B1 (fr) * 2015-02-24 2017-11-15 The Swatch Group Research and Development Ltd. Montre équipée d'une loupe

Also Published As

Publication number Publication date
WO2019238205A1 (fr) 2019-12-19
CN112236692B (zh) 2022-01-14
CN112236692A (zh) 2021-01-15

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