WO2019127223A1 - 屈光度调节装置及电子设备 - Google Patents

屈光度调节装置及电子设备 Download PDF

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Publication number
WO2019127223A1
WO2019127223A1 PCT/CN2017/119426 CN2017119426W WO2019127223A1 WO 2019127223 A1 WO2019127223 A1 WO 2019127223A1 CN 2017119426 W CN2017119426 W CN 2017119426W WO 2019127223 A1 WO2019127223 A1 WO 2019127223A1
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WO
WIPO (PCT)
Prior art keywords
piezoelectric ceramic
voltage
diopter
adjusting device
ceramic sheets
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PCT/CN2017/119426
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English (en)
French (fr)
Inventor
余林蔚
Original Assignee
深圳市柔宇科技有限公司
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Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201780097416.1A priority Critical patent/CN111433657A/zh
Priority to PCT/CN2017/119426 priority patent/WO2019127223A1/zh
Publication of WO2019127223A1 publication Critical patent/WO2019127223A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02Viewfinders

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a diopter adjusting device and an electronic device.
  • the technical solution of the present invention discloses a diopter adjusting device and an electronic device, which can perform naked eye correction on an operator with poor vision, so that an operator can perform clear observation with the naked eye.
  • a diopter adjusting device for an electronic device having a finder eyepiece comprising: a piezoelectric ceramic module, which can be deformed under a voltage applied state; a lens module fixed to the piezoelectric ceramic module, used Providing optical support to the diopter adjusting device; and a control module connecting the piezoelectric ceramic module for refracting setting by a user, and for controlling the piezoelectric ceramic group according to a diopter setting of a user The applied voltage controls the deformation of the piezoelectric ceramic group.
  • An electronic device includes a finder eyepiece and a diopter adjustment device as described above, wherein the finder eyepiece is fixed to the piezoelectric ceramic module of the diopter adjustment device.
  • the diopter adjusting device and the electronic device of the present invention can perform naked eye correction for an operator with poor vision, so that the operator can perform clear observation with the naked eye.
  • Fig. 1 is an exploded perspective view showing a diopter adjusting device in a first embodiment of the present invention.
  • Fig. 2 is a side elevational view showing the diopter adjusting device in the first embodiment of the present invention.
  • FIG 3 is a perspective view of a piezoelectric ceramic module of a diopter adjusting device according to a first embodiment of the present invention.
  • FIG. 4 is a perspective view of a piezoelectric ceramic module of a diopter adjusting device according to a second embodiment of the present invention.
  • Fig. 5 is a perspective view showing a piezoelectric ceramic module of a diopter adjusting device according to a third embodiment of the present invention.
  • FIG. 6 is an exploded perspective view of an electronic device according to a fourth embodiment of the present invention.
  • FIG. 7 is a side view of an electronic device in a fourth embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of a diopter adjusting device according to a first embodiment of the present invention
  • FIG. 2 is a side view of the diopter adjusting device according to the first embodiment of the present invention.
  • the diopter adjusting device 1 includes a piezoelectric ceramic module 10 , a lens module 20 , and a control module 30 .
  • the piezoelectric ceramic module 10 includes at least one piezoelectric ceramic sheet 11 and a receiving member 12, and the at least one piezoelectric ceramic sheet 11 is received and fixed in the receiving member 12;
  • the lens module 20 includes a lens group 21 and the housing 22, the lens group 21 is received in the housing 22;
  • the receiving member 12 is disposed on the housing 22;
  • the control module 30 includes a circuit board 31 electrically connected to each other, and processed
  • the chip 32 and the adjusting member 33 are connected to the piezoelectric ceramic module 10.
  • the circuit board 31 and the processing chip 32 of the control module 30 are received in the housing 22, and the adjusting member 33 is exposed on the housing 22.
  • the receiving member 12 is fixed on the casing 22 by adhesive or glue, and is hermetically connected to the casing 22 to have better dustproof capability.
  • the piezoelectric ceramic sheet 11 has an electro-deformation characteristic, and the piezoelectric ceramic sheet 11 can be deformed in a state of applying a voltage; the receiving member 12 can be deformed in response to deformation of the piezoelectric ceramic sheet 11.
  • the deformation of the receiving member 12 may cause a change in the distance between the viewfinder eyepiece and the lens module 20, wherein the distance between the viewfinder eyepiece and the lens module 20 changes, that is, the corresponding diopter The change in degrees.
  • the piezoelectric ceramic sheet 11 can be deformed along the optical axis direction of the lens group 21 of the lens module 20 in a state of applying a voltage; the receiving member 12 can respond to the piezoelectric ceramic The deformation of the sheet 11 is deformed along the optical axis direction of the lens module 20, and the deformation amount of the receiving member 12 is equal to the amount of change in the distance between the viewfinder eyepiece and the lens module 20.
  • the lens in the lens module 20 is to be moved in a direction other than the optical axis direction, it may be disposed in a pressurized state, and the piezoelectric ceramic sheet 11 can be along the lens mold.
  • the direction of the group 20 other than the optical axis direction is deformed, for example, the deformation direction of the piezoelectric ceramic sheet 11 is set at an oblique angle to the optical axis direction.
  • the piezoelectric ceramic module 10 includes two substantially parallel piezoelectric ceramic sheets 11; each of the piezoelectric ceramic sheets 11 includes an arc portion 111 and is connected to the curved portion. An extending portion 112 at both ends of the 111; the curved portion 111 is curved in the optical axis direction of the lens group 21.
  • the curvature of the curved portion 111 of the two piezoelectric ceramic sheets 11 can be changed, and the curvature of the curved portion 111 can vary linearly with the magnitude of the voltage.
  • the parameters of the two piezoelectric ceramic sheets 11 are identical, that is, the direction of deformation and the deformation amount are consistent under the condition of adding the same voltage.
  • the bending curvature of the two curved portions 111 becomes larger in a state where the voltage is applied, and as the voltage increases, the bending curvature of the curved portion 111 also linearly increases with the voltage.
  • the curvature of the curved portion 111 is also linearly reduced, the voltage is removed, and the curved portion 111 is restored to the original shape; in other embodiments, the arc may be set in a state of applying a voltage.
  • the curvature of the curved portion 111 becomes smaller, and as the voltage increases, the curved curvature of the curved portion 111 linearly decreases, and as the voltage decreases, the curved curvature of the curved portion 111 linearly increases, and the removal is removed. At the voltage, the curved portion 111 is restored to its original shape.
  • extension portions 112 of the two piezoelectric ceramic sheets 11 are separated; in other embodiments, the extension portions 112 of the two piezoelectric ceramic sheets 11 may be connected, not in this embodiment.
  • the example illustration is limited.
  • the receiving member 12 includes an opposite and parallel first surface 121, a second surface 122, and a connecting surface 123 connected between the first surface 121 and the second surface 122;
  • a light-passing hole 124 is formed in the receiving member 12, and the light-passing hole 124 extends through the first surface 121 and the second surface 122, so that the receiving member 12 is annular in shape;
  • the first surface 121 The extending direction of the second surface 122 is substantially perpendicular to the optical axis direction of the lens module 20; the top ends of the curved portions 111 of the two piezoelectric ceramic sheets 11 are fixed to the first surface 121 side.
  • the two extending portions 112 of the piezoelectric ceramic sheets 11 are respectively fixed on the second surface 122 side; two of the piezoelectric ceramic sheets 11 are respectively disposed on two sides of the receiving member 12; wherein, the response The curvature of the piezoelectric ceramic sheet 11 is changed, and the receiving member 12 can change in thickness along the optical axis direction of the lens module 20.
  • the receiving member 12 The amount of deformation in the optical axis direction of the lens module 20 is the amount of thickness change.
  • the thickness of the receiving member 12 is the distance between the first surface 121 and the second surface 122.
  • the shape of the receiving member 12 is preferably substantially matched with the finder eyepiece and the lens module 20 so as to be connected between the finder eyepiece and the lens module 20, preferably, as shown in the figure 1-3 of the present case, the accommodating member 12 overall is a long ring shape for better mechanical properties.
  • the housing member 12 may be a housing, and the housing corresponding to the connecting surface 123 may be made of a soft insulating material to be easily deformed in the thickness direction of the receiving member 12, such as silicone, rubber, resin, etc.
  • the insulating material is made of, or the housing corresponding to the connecting surface is composed of a plurality of folding faces, and the plurality of folding faces may be made of a hard or soft material, and the plurality of folding faces pass between
  • the flexible material is connected, and the plurality of folded surfaces can be folded or unfolded along the optical axis direction of the lens module 20, and can be easily deformed in the thickness direction of the receiving member 12; the receiving member 12 can also be
  • the elastic body made entirely of an elastic material can also be easily deformed, and the at least one piezoelectric ceramic sheet 11 is tightly wrapped in the elastic body; the elastic material may be silica gel, rubber, elastic resin or the like.
  • the lens module 20 is used to provide optical support to the diopter adjustment device 1, such as to provide optical support for myopia or far vision diopter correction; the lens set 21 can include one or more optical lenses.
  • the control module 30 is configured to perform diopter setting by a user, and is configured to control a voltage applied on the at least one piezoelectric ceramic sheet 11 according to a diopter setting of the user to control the at least one piezoelectric ceramic sheet 11 Deformation; the processing chip 32 is mounted on the circuit board 31; the control module 30 stores a voltage value applied to the at least one piezoelectric ceramic sheet 11 and the at least one piezoelectric ceramic sheet 11
  • the processing chip 32 can perform a voltage value applied to the at least one piezoelectric ceramic sheet 11 and the at least a relationship between a deformation amount, a deformation amount of the receiving member 12, and a degree of diopter (or a change value)
  • the deformation of one piezoelectric ceramic sheet 11, the amount of deformation of the receiving member 12, and the conversion between the diopter (or change value) are calculated; the adjusting member 33 is used for the user to perform diopter adjustment setting.
  • the adjusting member 33 can be a virtual adjustment interface, a keyboard or a knob, or the like.
  • the adjusting member 33 is provided with two addition and subtraction adjustment positions 331, and the two addition and subtraction adjustment positions 331 correspond to the diopter addition and the diopter reduction.
  • the adjustment position is added once per operation, and the diopter is increased by 50. Once the adjustment position is reduced, the diopter is reduced by 50, so that the user can select different adjustment positions 331 to adjust the diopter.
  • a plurality of adjustment positions 331 may be disposed on the adjustment member 33, and the plurality of adjustment positions 331 may correspond to different diopter powers, for example, 50, 100, 150, 200, 250, 300, 350, and the like. The user can select different adjustment positions 331 according to the required dioptric power.
  • adjusting member 33 is a virtual interface
  • two virtual addition and subtraction adjustment bits or a plurality of virtual diopter power adjustment bits may be set to perform diopter setting similar to the above.
  • FIG. 4 is a perspective view of a piezoelectric ceramic module of a diopter adjusting device according to a second embodiment of the present invention.
  • the second embodiment of the present invention provides a diopter adjusting device, the diopter adjusting device and the first
  • the diopter adjusting device 1 of an embodiment is substantially the same, except that in the embodiment, the piezoelectric ceramic module 10 includes four piezoelectric ceramic sheets 11 and two piezoelectric ceramic sheets 11 in two groups, two of which are two groups.
  • the piezoelectric ceramic sheets 11 are respectively disposed on two sides of the receiving member 12, and each of the piezoelectric ceramic sheets 11 includes an inclined portion 113 and an extending portion 112 respectively connected to the two ends of the inclined portion 113.
  • the extending portions 112 at both ends of the inclined portion 113 of the piezoelectric ceramic sheet 11 are respectively fixed to the first surface 121 side and the second surface 122 side, so that each of the piezoelectric ceramic sheets 11 is located at the Between the first surface 121 and the second surface 122; preferably, the inclined portions 113 of the two piezoelectric ceramic sheets 11 of each group are inclined in opposite directions; the inclined portion 113 faces the lens module 20 The optical axis direction is inclined.
  • the inclination and the length of the inclined portion 113 can be changed, and the inclination and/or the length of the inclined portion 113 can vary linearly with the magnitude of the voltage, wherein the piezoelectricity is responded to
  • the inclination and/or length of the ceramic sheet 11 varies, and the receiving member 12 can vary in thickness along the optical axis direction of the lens module 20.
  • the parameters of the four piezoelectric ceramic sheets 11 are identical, that is, the direction of the deformation and the deformation amount are consistent under the condition of applying the same voltage.
  • the inclination and/or length of each of the inclined portions 113 becomes large, and the inclination of the inclined portion 113 increases as the voltage increases. And/or the length also increases linearly. As the voltage decreases, the inclination and/or length of the inclined portion 113 also linearly decreases, the voltage is removed, the inclined portion 113 returns to the original state; or, in the state of applying voltage Next, the inclination and/or length of the inclined portion becomes small, and as the voltage increases, the inclination and/or the length of the inclined portion linearly decreases, and as the voltage decreases, the inclined portion 113 decreases. The inclination and/or length are linearly increased, the voltage is removed, and the inclined portion 113 is restored to its original shape.
  • FIG. 5 is a perspective view of a piezoelectric ceramic module of a diopter adjusting device according to a third embodiment of the present invention.
  • the third embodiment of the present invention provides a diopter adjusting device, the diopter adjusting device and the first
  • the diopter adjusting device 1 of an embodiment is substantially the same, and the difference is that, in the embodiment, the piezoelectric ceramic module 10 includes a plurality of piezoelectric ceramic sheets 11 stacked in layers and fixed in layers, the outermost sides The two piezoelectric ceramic sheets 11 are respectively fixed on the first surface 121 side and the second surface 122 side; in the state of applying a voltage, the thickness of each of the piezoelectric ceramic sheets 11 can occur.
  • the thickness of the piezoelectric ceramic sheet 11 may vary linearly with the magnitude of the voltage, wherein the accommodating member 12 is in the light along the lens module 20 in response to the thickness variation of the piezoelectric ceramic sheet 11. Thickness variations can also occur in the axial direction.
  • the parameters of the four piezoelectric ceramic sheets 11 are identical, that is, the direction of the deformation and the deformation amount are consistent under the condition of adding the same voltage.
  • the thickness of each of the piezoelectric ceramic sheets 11 becomes large, and as the voltage increases, the thickness of each of the piezoelectric ceramic sheets 11 also linearly increases. As the voltage is reduced, the thickness of each of the piezoelectric ceramic sheets 11 is also linearly reduced, the voltage is removed, and the thickness of each of the piezoelectric ceramic sheets 11 is restored to the original state; or, in the state of applying a voltage, each The thickness of the piezoelectric ceramic sheet 11 becomes small, and as the voltage increases, the thickness of each of the piezoelectric ceramic sheets 11 linearly decreases, and each of the piezoelectric ceramic sheets decreases as the voltage decreases. The thickness of 11 is linearly increased, the voltage is removed, and the thickness of each of the piezoelectric ceramic sheets 11 is restored to its original shape.
  • a plurality of the piezoelectric ceramic sheets 11 are stacked in a continuous or intermittent annular shape in the receiving member 12 and surround the light passing holes 124.
  • a plurality of the piezoelectric ceramic sheets 11 are continuously annularly stacked in the receiving member 12 and surround the light passing holes 124.
  • a fourth embodiment of the present invention provides an electronic device 100, which includes a finder eyepiece 101 and any diopter adjustment device described in the first to third embodiments;
  • the piezoelectric ceramic module 10 in the diopter adjusting device is fixed to the finder eyepiece 101.
  • the first surface 121 or the second surface 122 of the accommodating member 12 in the diopter adjusting device is fixed on the finder eyepiece 101 by adhesive or glue, and is closely connected to the finder eyepiece 101. To have better dustproof ability.
  • the electronic device 100 can be a camera, a microscope, a telescope, a head mounted device, or the like. It can be understood that the electronic device 100 should also include other components, which are not shown in the embodiment.
  • the diopter power addition and subtraction value may be first set by the adjusting member 33 to process the chip 32. After receiving the command of the diopter setting, the deformation according to the voltage value applied to the at least one piezoelectric ceramic sheet 11, the deformation of the at least one piezoelectric ceramic sheet 11, and the deformation amount of the receiving member 12 will be calculated.
  • the corresponding voltage value is calculated, and the voltage value is output to the at least one piezoelectric ceramic sheet 11, and the at least one piezoelectric ceramic sheet 11 is under the action of a voltage
  • the deformation occurs, and the accommodating member 12 is deformed to change the thickness.
  • the accommodating member 12 pulls the distance between the finder eyepiece and the lens module 20 to change the preset distance. The degree of diopter plus or minus.
  • the adjusting member 33 includes a plurality of diopter power adjusting positions 331, when the diopter adjusting device 1 of the electronic device 100 is used, the refracting power can be first set by the adjusting member 33, and the processing chip 32 is receiving. After the command of the diopter setting, the voltage value applied to the at least one piezoelectric ceramic sheet 11, the deformation of the at least one piezoelectric ceramic sheet 11, the deformation amount of the receiving member 12, and the refracting power will be calculated.
  • the thickness variation caused by the deformation of the receiving member 12 can also make the screen and the lens module. 20 The distance between them is changed, and in fact, the user can observe more clearly.
  • the diopter power or diopter plus or minus value can be set to correct the naked eye for the operator with poor vision, so that the operator can use the naked eye for clear observation.
  • the thickness variation of the receiving member is linear with the input voltage, after setting the diopter degree or the diopter addition and subtraction value, the corresponding very accurate input voltage can be calculated, and thus the actual output value of the diopter is set.
  • the error between the set diopter power or the diopter plus or minus value is very small, and the accuracy of the output value is very high.
  • the variation of the thickness of the piezoelectric ceramic module can be directly controlled to control the change of the eyepiece and the lens module. It is not necessary to set other adjustment structures such as gears, so that the structure of the diopter adjusting device and the electronic device is very simple and designed. It is very convenient to set the diopter power or the diopter plus or minus value to achieve automatic adjustment.
  • the piezoelectric ceramic sheets are respectively disposed on two sides of the receiving member, or are arranged in an annular layer or evenly stacked in the receiving member, so that at least two sides of the receiving member can be simultaneously deformed. Further, the thickness of each part of the accommodating member is substantially the same, and the force between the finder eyepiece and the lens module is uniform, and the tilting is not easy, thereby avoiding the framing eyepiece and the lens dies.
  • the shape interface or distortion caused by the tilt between the groups, that is, the piezoelectric ceramic module of the embodiment can be designed to make the electronic device have a better observation effect.

Abstract

一种屈光度调节装置(1),用于一具有取景目镜的电子设备,包括:压电陶瓷模组(10),可在加电压的状态下发生形变;镜片模组(20),与所述压电陶瓷模组(10)固接,用于向所述屈光度调节装置提供光学支持;及控制模组(30),连接所述压电陶瓷模组(10),用于供用户进行屈光度设定,并用于根据用户的屈光度设定控制所述压电陶瓷模组(10)上所加的电压,以控制所述压电陶瓷模组(10)的形变。一种电子设备(100)。所述屈光度调节装置(1)及电子设备(100)可以对视力不佳的操作者进行裸眼矫正。

Description

屈光度调节装置及电子设备 技术领域
本发明涉及显示技术领域,尤其涉及一种屈光度调节装置及电子设备。
背景技术
一些光学仪器上,如相机、显微镜、望远镜、头戴式设备等上,都设有取景目镜以便操作者观测及进行对焦,然而,在使用设备的取景目镜进行观测及对焦时,视力不佳的操作者用裸眼观测会因视线不清晰影响观测及对焦,如佩戴眼镜观测则会因眼镜与取景目镜之间存在间距,从而对设备的对焦不准确,进而也影响对设备的使用。
发明内容
本发明技术方案揭示一种屈光度调节装置及电子设备,可以对视力不佳的操作者进行裸眼矫正,使操作者可以用裸眼进行清晰观测。
一种屈光度调节装置,用于一具有取景目镜的电子设备,包括:压电陶瓷模组,可在加电压的状态下发生形变;镜片模组,与所述压电陶瓷模组固接,用于向所述屈光度调节装置提供光学支持;及控制模组,连接所述压电陶瓷模组,用于供用户进行屈光度设定,并用于根据用户的屈光度设定控制所述压电陶瓷组上所加的电压,以控制所述压电陶瓷组的形变。
一种电子设备,所述电子设备包括一取景目镜及一如上述的屈光度调节装置,其中,所述取景目镜与所述屈光度调节装置的压电陶瓷模组固接。
本发明的屈光度调节装置及电子设备可以对视力不佳的操作者进行裸眼矫正,使操作者可以用裸眼进行清晰观测。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明第一实施例中的屈光度调节装置的分解示意图。
图2为本发明第一实施例中的屈光度调节装置的侧视示意图。
图3为本发明第一实施例中的屈光度调节装置的压电陶瓷模组的立体示意图。
图4为本发明第二实施例中的屈光度调节装置的压电陶瓷模组的立体示意图。
图5为本发明第三实施例中的屈光度调节装置的压电陶瓷模组的立体示意图。
图6为本发明第四实施例中的电子设备的分解示意图。
图7为本发明第四实施例中的电子设备的侧视示意图。
具体实施方式
下面将结合本发明技术方案实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
请参阅图1-3,图1为本发明第一实施例中的屈光度调节装置的分解示意图,图2为本发明第一实施例中的屈光度调节装置的侧视示意图,图3为本发明第一实施例中的屈光度调节装置的压电陶瓷模组的立体示意图;本技术方案第一实施例提供一种屈光度调节装置1,用于一具有取 景目镜的电子设备。
所述屈光度调节装置1包括压电陶瓷模组10、镜片模组20及控制模组30。
所述压电陶瓷模组10包括至少一压电陶瓷片11及收容件12,所述至少一条压电陶瓷片11收容并固定于所述收容件12内;所述镜片模组20包括镜片组21及壳体22,所述镜片组21收容于所述壳体22内;所述收容件12设置于所述壳体22上;所述控制模组30包括相互电连接的电路板31、处理芯片32及调节件33,所述控制模组30连接所述压电陶瓷模组10。其中,在屈光度调节装置1用于所述具有取景目镜的电子设备时,所述收容件12可与所述取景目镜固接。
本实施例中,所述控制模组30的电路板31及处理芯片32收容于所述壳体22内,所述调节件33暴露于所述壳体22上。
优选地,所述收容件12通过背胶或胶水等固设于所述壳体22上,且与所述壳体22密闭连接,以具有较好的防尘能力。
所述压电陶瓷片11具有电致变形特性,在加电压的状态下,所述压电陶瓷片11能够发生形变;所述收容件12能够响应所述压电陶瓷片11的形变而发生变形,所述收容件12的变形可引起所述取景目镜与所述镜片模组20之间的距离发生变化,其中,所述取景目镜与所述镜片模组20之间的距离发生变化即对应屈光度度数的变化。
本实施例中,在加电压的状态下,所述压电陶瓷片11能够沿所述镜片模组20的镜片组21的光轴方向发生形变;所述收容件12能够响应所述压电陶瓷片11的形变在沿所述镜片模组20的光轴方向上发生变形,所述收容件12的变形量等于所述取景目镜与所述镜片模组20之间的距离变化量。
在其他实施例中,如果想要所述镜片模组20内的镜片沿光轴方向以外的方向移动,则可以设置在加压的状态下,所述压电陶瓷片11能够沿所述镜片模组20的光轴方向以外的方向发生形变,例如设置所述压电陶 瓷片11的变形方向与所述光轴方向呈一倾斜角度。
本实施例中,所述压电陶瓷模组10包括两条大致相平行的压电陶瓷片11;每条所述压电陶瓷片11均包括一弧形部111及连接于所述弧形部111两端的延伸部112;所述弧形部111沿所述镜片组21的光轴方向弯曲。
在加电压的状态下,两条所述压电陶瓷片11的所述弧形部111的弯曲弧度能够发生变化,且所述弧形部111的弯曲弧度可随电压的大小呈线性变化。其中,两条所述压电陶瓷片11的参数相一致,也就是说,在加相同电压的状况下,形变的方向及形变量等保持一致。
本实施例中,设定在加电压的状态下,两所述弧形部111的弯曲弧度变大,且随着电压的增加,所述弧形部111的弯曲弧度也线性增加,随着电压的减小,所述弧形部111的弯曲弧度也线性减小,撤去电压,所述弧形部111恢复原状;在其他实施例中,也可以设定在加电压的状态下,所述弧形部111的弯曲弧度变小,且随着电压的增加,所述弧形部111的弯曲弧度线性减小,随着电压的减小,所述弧形部111的弯曲弧度线性增大,撤去电压,所述弧形部111恢复原状。
本实施例中,两条所述压电陶瓷片11的延伸部112相分离;在其他实施例中,两条所述压电陶瓷片11的延伸部112也可以相连接,并不以本实施例图示为限。
本实施例中,所述收容件12包括相对且平行的第一表面121、第二表面122、及连接于所述第一表面121与所述第二表面122之间的连接面123;所述收容件12上形成有一通光孔124,所述通光孔124贯通所述第一表面121及所述第二表面122,从而使所述收容件12整体呈环状;所述第一表面121及所述第二表面122的延伸方向与所述镜片模组20的光轴方向大致垂直;两条所述压电陶瓷片11的弧形部111的顶端均固定于所述第一表面121侧,两条所述压电陶瓷片11的延伸部112的均固定于所述第二表面122侧;两条所述压电陶瓷片11分别设于所述收容件12的两侧;其中,响应所述压电陶瓷片11的弧度变化,所述收容件12在 沿所述镜片模组20的光轴方向上可产生厚度变化,响应所述压电陶瓷片11的形变,所述收容件12在沿所述镜片模组20的光轴方向上的变形量即为厚度变化量。本实施例中,所述收容件12的厚度即为所述第一表面121与所述第二表面122之间的距离。
所述收容件12的形状优选与取景目镜及镜片模组20大致匹配,以便于连接于所述取景目镜与镜片模组20之间,优选地,如本案图示1-3,所述收容件12整体呈长圆环状,以具有更好的机械性能。
所述收容件12可以为壳体,对应所述连接面123的壳体可以为柔软绝缘材料制成,以容易在所述收容件12的厚度方向发生变形,例如为硅胶、橡胶、树脂等软性绝缘材料制成,或,对应所述连接面的壳体为多个折叠面连接组成,所述多个折叠面可以为硬质或软质材料制成,所述多个折叠面之间通过软性材料连接,所述多个折叠面能够沿所述镜片模组20的光轴方向折叠或展开,也能够容易地在所述收容件12的厚度方向发生变形;所述收容件12也可以为整体由弹性材料制成的弹性实体,也能够容易地发生变形,所述至少一条压电陶瓷片11紧密包裹于所述弹性体内;所述弹性材料可以为硅胶、橡胶、弹性树脂等。
所述镜片模组20用于向所述屈光度调节装置1提供光学支持,例如提供近视或远视屈光度矫正所需的光学支持;所述镜片组21可以包括一个或多个光学镜片。
所述控制模组30用于供用户进行屈光度设定,并用于根据用户的屈光度设定控制所述至少一条压电陶瓷片11上所加的电压以控制所述至少一条压电陶瓷片11的形变;所述处理芯片32安装于所述电路板31上;所述控制模组30存储有所述至少一条压电陶瓷片11上所加的电压值、所述至少一条压电陶瓷片11的形变、所述收容件12的变形量以及屈光度度数(或变化值)之间的对应关系,所述处理芯片32可进行所述至少一条压电陶瓷片11上所加的电压值、所述至少一条压电陶瓷片11的形变、所述收容件12的变形量以及屈光度度数(或变化值)之间的转换计 算;所述调节件33用于供用户进行屈光度调节设定。
所述调节件33可以为虚拟调节界面、按键盘或旋钮等。
本实施例中,所述调节件33设有两个加减调节位331,所述两个加减调节位331对应屈光度加和屈光度减,例如每操作一次加调节位,屈光度加50,每操作一次减调节位,屈光度减50,从而用户可以选择不同的调节位331进行屈光度的加减调节。
在其他实施例中,所述调节件33上还可以设置多个调节位331,所述多个调节位331可以对应不同的屈光度度数,例如50、100、150、200、250、300、350等,用户可以根据需要的屈光度选择不同的调节位331。
需要说明的是,当所述调节件33为虚拟界面时,也可以设置两个虚拟加减调节位或多个虚拟屈光度度数调节位,进行类似上述的屈光度设定。
请参阅图4,图4为本发明第二实施例中的屈光度调节装置的压电陶瓷模组的立体示意图,本技术方案第二实施例提供一种屈光度调节装置,所述屈光度调节装置与第一实施例的屈光度调节装置1大致相同,其区别在于:本实施例中,所述压电陶瓷模组10包括四条压电陶瓷片11,四条压电陶瓷片11两两一组,其中两组所述压电陶瓷片11分别设于所述收容件12的两侧,每条所述压电陶瓷片11均包括一倾斜部113及分别连接于所述倾斜部113两端的延伸部112,每条所述压电陶瓷片11的倾斜部113两端的延伸部112分别固定于所述第一表面121侧及所述第二表面122侧,使每条所述压电陶瓷片11均位于所述第一表面121及第二表面122之间;优选每组的两个所述压电陶瓷片11中的所述倾斜部113的倾斜方向相反;所述倾斜部113朝向所述镜片模组20的光轴方向倾斜。
在加电压的状态下,所述倾斜部113的倾斜度及长度能够发生变化,且所述倾斜部113的倾斜度及/或长度可随电压的大小呈线性变化,其中,响应所述压电陶瓷片11的倾斜度及/或长度变化,所述收容件12在沿所述镜片模组20的光轴方向上可产生厚度变化。其中,四条所述压电陶瓷 片11的参数相一致,也就是说,在加相同电压的状况下,形变的方向及形变量等保持一致。
与第一实施例类似,本实施例中,在加电压的状态下,各所述倾斜部113的倾斜度及/或长度变大,且随着电压的增加,所述倾斜部113的倾斜度及/或长度也线性增加,随着电压的减小,所述倾斜部113的倾斜度及/或长度也线性减小,撤去电压,所述倾斜部113恢复原状;或,在加电压的状态下,所述倾斜部的倾斜度及/或长度变小,且随着电压的增加,所述倾斜部的倾斜度及/或长度线性减小,随着电压的减小,所述倾斜部113的倾斜度及/或长度线性增加,撤去电压,所述倾斜部113恢复原状。
请参阅图5,图5为本发明第三实施例中的屈光度调节装置的压电陶瓷模组的立体示意图,本技术方案第三实施例提供一种屈光度调节装置,所述屈光度调节装置与第一实施例的屈光度调节装置1大致相同,其区别在于:本实施例中,所述压电陶瓷模组10包括层层叠加且层层固接的多条压电陶瓷片11,最外两侧的两条所述压电陶瓷片11分别固定于所述第一表面121侧及所述第二表面122侧;在加电压的状态下,每条所述压电陶瓷片11的厚度均能够发生变化,且所述压电陶瓷片11的厚度可随电压的大小呈线性变化,其中,响应所述压电陶瓷片11的厚度变化,所述收容件12在沿所述镜片模组20的光轴方向上也可产生厚度变化。其中,四条所述压电陶瓷片11的参数相一致,也就是说,在加相同电压的状况下,形变的方向及形变量等保持一致。
与第一实施例类似,在加电压的状态下,每条所述压电陶瓷片11的厚度变大,且随着电压的增加,每条所述压电陶瓷片11的厚度也线性增加,随着电压的减小,每条所述压电陶瓷片11的厚度也线性减小,撤去电压,每条所述压电陶瓷片11的厚度恢复原状;或,在加电压的状态下,每条所述压电陶瓷片11的厚度变小,且随着电压的增加,每条所述压电陶瓷片11的厚度线性减小,随着电压的减小,每条所述压电陶瓷片11的厚度线性增加,撤去电压,每条所述压电陶瓷片11的厚度恢复原状。
优选地,多条所述压电陶瓷片11呈连续或断续环状层叠于所述收容件12内且环绕所述通光孔124。本实施例中,多条所述压电陶瓷片11呈连续环状层叠于所述收容件12内且环绕所述通光孔124。
请参阅图1-7,本技术方案第四实施例提供一种电子设备100,所述电子设备100包括一取景目镜101及第一至第三实施例中所述的任一屈光度调节装置;所述屈光度调节装置中的压电陶瓷模组10固接于所述取景目镜101上。
本实施例中,所述屈光度调节装置中的收容件12的第一表面121或第二表面122通过背胶或胶水等固设于所述取景目镜101上,且与所述取景目镜101密闭连接,以具有较好的防尘能力。
其中,所述电子设备100可以为相机、显微镜、望远镜、头戴式设备等等。可以理解,所述电子设备100还应包括其他部件,本实施例图示并未示出。
当所述调节件33包括两个加减调节位331时,使用所述电子设备100的所述屈光度调节装置1时,可以先通过所述调节件33设定屈光度度数加减值,处理芯片32在接收到屈光度设定的指令后,将会计算根据所述至少一条压电陶瓷片11上所加的电压值、所述至少一条压电陶瓷片11的形变、所述收容件12的变形量以及屈光度度数变化值之间的对应关系,计算出对应的电压值,并将所述电压值输出至所述至少一条压电陶瓷片11,所述至少一条压电陶瓷片11在电压作用下即发生形变,进而带动所述收容件12变形从而发生厚度变化,所述收容件12即牵引所述取景目镜与所述镜片模组20使其之间的距离发生变化,以此来获得预设的屈光度度数加减值。
当所述调节件33为包括多个屈光度度数调节位331时,使用所述电子设备100的所述屈光度调节装置1时,可以先通过所述调节件33设定屈光度度数,处理芯片32在接收到屈光度设定的指令后,将会计算根据所述至少一条压电陶瓷片11上所加的电压值、所述至少一条压电陶瓷片11的形变、所述收容件12的变形量以及屈光度度数之间的对应关系,计 算出对应的电压值,并将所述电压值输出至所述至少一条压电陶瓷片11,所述至少一条压电陶瓷片11在电压作用下即发生形变,进而带动所述收容件12变形从而发生厚度变化,所述收容件12即牵引所述取景目镜与所述镜片模组20使其之间的距离发生变化,以此来获得预设的屈光度度数。
可以理解,在其他实施例中,当所述电子设备100为头戴式设备等具有屏幕的设备时,所述收容件12的变形引起的厚度变化也可以使所述屏幕与所述镜片模组20使其之间的距离发生变化,实际上也能使用户更清楚的观测。
本发明技术方案的屈光度调节装置及电子设备具有如下优点:
1.可以设定屈光度度数或屈光度加减值,从而对视力不佳的操作者进行裸眼矫正,使操作者可以用裸眼进行清晰观测。
2.因所述收容件的厚度变化与输入电压呈线性关系,从而在设定屈光度度数或屈光度加减值之后,可以计算得到对应的非常精准的输入电压,从而,屈光度的实际输出值与设定设定屈光度度数或屈光度加减值之间的误差非常小,输出值的精准度非常高。
3.可以直接由压电陶瓷模组的厚度变形量来控制取景目镜与镜片模组的变化,不需要设定齿轮等其他调节结构,从而使屈光度调节装置及电子设备的结构非常简单,且设定设定屈光度度数或屈光度加减值即可实现自动调节,非常方便。
4.所述压电陶瓷片分别设于所述收容件的两侧,或呈环状层或均匀分段叠设置于收容件内,从而可以使所述收容件的至少两侧同时发生变形,进而使所述收容件的各个部位的厚度基本相同,进而可以使所述取景目镜与所述镜片模组之间的受力均匀,不易倾斜,进而可以避免因所述取景目镜与所述镜片模组之间产生倾斜而引起的形界面或畸变,也即,本实施例的压电陶瓷模组的设计可以使电子设备具有较好的观测效果。
以上所述是本发明的优选实施例,应当指出,对于本技术领域的普通 技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本发明的保护范围。

Claims (20)

  1. 一种屈光度调节装置,用于一具有取景目镜的电子设备,包括:
    压电陶瓷模组,可在加电压的状态下发生形变;
    镜片模组,与所述压电陶瓷模组固接,用于向所述屈光度调节装置提供光学支持;及
    控制模组,连接所述压电陶瓷模组,用于供用户进行屈光度设定,并用于根据用户的屈光度设定控制所述压电陶瓷组上所加的电压,以控制所述压电陶瓷组的形变。
  2. 如权利要求1所述的屈光度调节装置,其特征在于,所述压电陶瓷模组包括至少一条压电陶瓷片及一收容件;所述收容件包括相对的第一表面及第二表面;所述收容件上形成有一通光孔,所述通光孔贯通所述第一表面及所述第二表面;所述收容件的第一表面或第二表面与所述镜片模组固接;所述至少一条压电陶瓷片收容于所述收容件内,在电压作用于所述至少一条压电陶瓷片时,所述收容件响应所述压电陶瓷片的形变发生变形。
  3. 如权利要求2所述的屈光度调节装置,其特征在于,所述收容件还包括连接于所述第一表面及第二表面之间的连接面;所述收容件为一壳体,对应所述连接面的壳体为柔软绝缘材料制成。
  4. 如权利要求2所述的屈光度调节装置,其特征在于,所述收容件还包括连接于所述第一表面及第二表面之间的连接面;所述收容件为一壳体,对应所述连接面的壳体为多个折叠面连接组成,所述多个折叠面为硬质或软质材料制成,所述多个折叠面之间通过软性材料连接,所述多个折叠面可沿所述镜片模组的光轴方向折叠或展开。
  5. 如权利要求2所述的屈光度调节装置,其特征在于,所述收容件为整体由弹性材料制成的弹性实体,所述至少一条压电陶瓷片紧密包裹于所述弹性体内。
  6. 如权利要求2所述的屈光度调节装置,其特征在于,所述压电陶 瓷模组包括两条相平行的压电陶瓷片,两条所述压电陶瓷片分别设于所述收容件的两侧;每条所述压电陶瓷片均包括一弧形部;所述弧形部沿所述镜片模组的光轴方向弯曲;在加电压的状态下,所述弧形部的弯曲弧度随电压的大小呈线性变化。
  7. 如权利要求6所述的屈光度调节装置,其特征在于,在加电压的状态下,所述弧形部的弯曲弧度变大,且随着电压的增加,所述弧形部的弯曲弧度也线性增加,随着电压的减小,所述弧形部的弯曲弧度也线性减小,撤去电压,所述弧形部恢复原状;或,在加电压的状态下,所述弧形部的弯曲弧度变小,且随着电压的增加,所述弧形部的弯曲弧度也线性减小,随着电压的减小,所述弧形部的弯曲弧度线性增大,撤去电压,所述弧形部恢复原状。
  8. 如权利要求6所述的屈光度调节装置,其特征在于,每条所述压电陶瓷片均还包括连接于所述弧形部两端的延伸部,每条所述压电陶瓷片的弧形部的均固定于所述第一表面侧,每条所述压电陶瓷片的延伸部的均固定于所述第二表面侧。
  9. 如权利要求2所述的屈光度调节装置,其特征在于,所述压电陶瓷模组包括四条压电陶瓷片,四条压电陶瓷片两两一组,其中两组所述压电陶瓷片分别设于所述收容件的两侧,每条所述压电陶瓷片均包括一倾斜部,所述倾斜部朝向所述镜片模组的光轴方向倾斜;在加电压的状态下,所述倾斜部的倾斜度及/或长度随电压的大小呈线性变化。
  10. 如权利要求9所述的屈光度调节装置,其特征在于,在加电压的状态下,所述倾斜部的倾斜度及/或长度变大,且随着电压的增加,所述倾斜部的倾斜度及/或长度也线性增加,随着电压的减小,所述倾斜部的倾斜度及/或长度也线性减小,撤去电压,所述倾斜部恢复原状;或,在加电压的状态下,所述倾斜部的倾斜度及/或长度变小,且随着电压的增加,所述倾斜部的倾斜度及/或长度也线性减小,随着电压的减小,所述倾斜部的倾斜度及/或长度线性增加,撤去电压,所述倾斜部恢复原状。
  11. 如权利要求9所述的屈光度调节装置,其特征在于,每条所述压电陶瓷片还包括分别连接于所述倾斜部两端的延伸部,每条所述压电 陶瓷片两端的延伸部分别固定于所述第一表面侧及所述第二表面侧,使每条所述压电陶瓷片均位于所述第一表面及第二表面之间。
  12. 如权利要求9所述的屈光度调节装置,其特征在于,每组的两个所述压电陶瓷片中的所述倾斜部的倾斜方向相反。
  13. 如权利要求2所述的屈光度调节装置,其特征在于,所述压电陶瓷模组包括层层叠加且层层固接的多条压电陶瓷片,最外两侧的两条所述压电陶瓷片分别固定于所述第一表面侧及所述第二表面侧,在加电压的状态下,每条所述压电陶瓷片的厚度随电压的大小呈线性变化。
  14. 如权利要求13所述的屈光度调节装置,其特征在于,在加电压的状态下,每条所述压电陶瓷片的厚度变大,且随着电压的增加,每条所述压电陶瓷片的厚度也线性增加,随着电压的减小,每条所述压电陶瓷片的厚度也线性减小,撤去电压,每条所述压电陶瓷片的厚度恢复原状;或,在加电压的状态下,每条所述压电陶瓷片的厚度变小,且随着电压的增加,每条所述压电陶瓷片的厚度也线性减小,随着电压的减小,每条所述压电陶瓷片的厚度线性增加,撤去电压,每条所述压电陶瓷片的厚度恢复原状。
  15. 如权利要求13所述的屈光度调节装置,其特征在于,多条所述压电陶瓷片呈连续或断续环状层叠于所述收容件内,且环绕所述通光孔。
  16. 如权利要求1所述的屈光度调节装置,其特征在于,所述控制模组包括一调节件,所述调节件用于供用户进行屈光度调节设定;所述调节件为虚拟调节界面、按键盘或旋钮。
  17. 如权利要求16所述的屈光度调节装置,其特征在于,所述调节件设有两个加减调节位,所述两个加减调节位分别对应屈光度加和屈光度减。
  18. 如权利要求16所述的屈光度调节装置,其特征在于,所述调节件设有多个调节位,所述多个调节位对应不同的屈光度度数。
  19. 一种电子设备,所述电子设备包括一取景目镜及一如权利要求1至18任一项所述的屈光度调节装置,其中,所述取景目镜与所述屈光度调节装置的压电陶瓷模组固接。
  20. 如权利要求19所述的屈光度调节装置,其特征在于,所述电子设备为相机、显微镜、望远镜、头戴式设备。
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