Optical system

Abstract

The present disclosure provides an optical system. The optical system includes a first optical module, a fixed portion, and a driving module. The first optical module is configured to connect a first optical element. The first optical module is movable relative to the fixed portion. The driving module is configured to drive the first optical module to move relative to the fixed portion. The fixed portion includes an opening corresponding to the first optical module.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an optical system. BACKGROUND

[0002] With the development of technology, nowadays many electronic devices (e.g. smart phones or digital cameras) have the function of taking pictures or videos. These electronic devices are increasingly popular and are developing towards the direction of convenient and thin design to provide users with more choices.

[0003] The aforementioned electronic devices with the function of taking pictures or videos usually have an optical system to drive an optical element (e.g. a lens) to move along an optical axis to achieve the functions of auto focus (AF) or optical image stabilization (OIS). Light can pass through the aforementioned optical element to form an image on a photosensitive element. However, the trend of today's mobile devices is to have a smaller size and higher durability, so how to effectively reduce the size of the optical system and improve its durability has become an important issue. SUMMARY

[0004] The purpose of the present disclosure is to propose an optical system to solve at least one of the above problems.

[0005] The embodiments of the present disclosure provide an optical system, comprising a first optical module, a fixed part, and a driving module. The first optical module is used to connect a first optical element. The first optical module can move relative to the fixed part. The driving module is used to drive the first optical module to move relative to the fixed part. The fixed part comprises an opening corresponding to the first optical module.

[0006] In some embodiments, the fixed part comprises a substrate. The driving module comprises a base, a pedestal, a coil, a magnetic conducting assembly, and a magnetic element. The base is arranged on the substrate. The pedestal is made of plastic material and is arranged on the base. The coil is fixed to the pedestal. The magnetic conducting assembly corresponds to the coil and is arranged on the pedestal. The magnetic element corresponds to the magnetic conducting assembly.

[0007] In some embodiments, the coil comprises a first section and a second section, the first section extends along a first axis, and the second section extends along the first axis. The magnetically conductive assembly comprises a first magnetically conductive element and a second magnetically conductive element. The first magnetically conductive element has an elongated structure and comprises a first end and a second end. The second magnetically conductive element has an elongated structure and comprises a third end and a fourth end. The winding axis of the coil is parallel to a second axis. The second axis is perpendicular to the first axis. A third axis is perpendicular to the first axis and the second axis. The first magnetically conductive element has a magnetically conductive material. The second magnetically conductive element has a magnetically conductive material. When viewed along the first axis, the first end does not overlap the second magnetically conductive element. When viewed along the first axis, the second end overlaps the second magnetically conductive element. When viewed along the first axis, the third end overlaps the first magnetically conductive element. When viewed along the first axis, the fourth end does not overlap the first magnetically conductive element. When viewed along the first axis, the distance between the first end and the coil is different from the distance between the second end and the coil. When viewed along the first axis, the distance between the third end and the coil is different from the distance between the fourth end and the coil. When viewed along the first axis, the magnetic element is located between the first end and the fourth end. In the direction of the second axis, the fourth end at least partially overlaps the base.

[0008] In some embodiments, the first magnetically conductive element comprises a first magnetically conductive portion and a first portion. The first magnetically conductive portion corresponds to the magnetic element. The first portion connects the first magnetically conductive portion. The second magnetically conductive element comprises a second magnetically conductive portion, a second portion, a third portion, and a fourth portion. The second magnetically conductive portion corresponds to the magnetic element. The second portion connects the second magnetically conductive portion. The third portion connects the second portion. The fourth portion connects the third portion. When viewed along the first axis, the first portion does not overlap the second portion. When viewed along the first axis, the first portion extends in a direction different from the third portion. When viewed along the first axis, the first portion at least partially overlaps the fourth portion. The coil surrounds the first portion and the fourth portion. The second portion and the third portion are outside the coil. When viewed along the first axis, the distance between the first end and the coil is greater than the distance between the third end and the coil. When viewed along the first axis, the distance between the second end and the coil is less than the distance between the fourth end and the coil. When viewed along the second axis, the first magnetically conductive element does not overlap the second magnetically conductive element. When viewed along the third axis, the first magnetically conductive element does not overlap the second magnetically conductive element. When viewed along the second axis, the first magnetically conductive element does not overlap the second section. When viewed along the second axis, the second magnetically conductive element at least partially overlaps the second section.

[0009] In some embodiments, the magnetically conductive assembly further comprises a third magnetically conductive element and a fourth magnetically conductive element, each having a long strip structure. The third magnetically conductive element has a magnetically conductive material. The fourth magnetically conductive element has a magnetically conductive material. In the direction of the first axis, the first magnetically conductive element, the second magnetically conductive element, the third magnetically conductive element, and the fourth magnetically conductive element are sequentially arranged. In the view along the third axis, the first magnetically conductive element, the second magnetically conductive element, the third magnetically conductive element, and the fourth magnetically conductive element do not overlap. In the direction of the first axis, the first portion of the first magnetically conductive element at least partially overlaps the third magnetically conductive element. In the direction of the first axis, the first end of the first magnetically conductive element at least partially overlaps the third magnetically conductive element. In the direction of the first axis, the first end of the first magnetically conductive element does not overlap the fourth magnetically conductive element. In the direction of the first axis, the fourth end of the second magnetically conductive element at least partially overlaps the fourth magnetically conductive element. In the direction of the first axis, the fourth end of the second magnetically conductive element does not overlap the third magnetically conductive element.

[0010] In some embodiments, the base comprises a support portion, a first positioning portion, a second positioning portion, a first opening, a second opening, and a first isolation portion. The first positioning portion is disposed on the support portion to support the coil. The second positioning portion is disposed on the support portion to support the coil. The first opening is disposed on the support portion to accommodate the first magnetically conductive element. The second opening is disposed on the support portion to accommodate the second magnetically conductive element. The first isolation portion is located between the first opening and the second opening. The coil is wound around the first positioning portion, the second positioning portion, and the first isolation portion. The first opening is located between the first positioning portion and the second positioning portion. The first positioning portion is located between the first section of the coil and the second section of the coil. The second positioning portion is located between the first section of the coil and the second section of the coil. The first isolation portion is located between the first section of the coil and the second section of the coil. The first isolation portion is located between the first positioning portion and the second positioning portion. In the view along the third axis, the first positioning portion is at least partially exposed from the coil. In the view along the third axis, the second positioning portion is at least partially exposed from the coil. In the view along the third axis, the first isolation portion is at least partially exposed from the coil. In the direction of the first axis, the width of the first positioning portion is different from the width of the first isolation portion. In the direction of the first axis, the width of the second positioning portion is different from the width of the first isolation portion.

[0011] In some embodiments, the optical system further comprises a connecting assembly, the driving module connects the first optical module through the connecting assembly, the connecting assembly comprises a first connecting element, a second connecting element, a third connecting element, and a fourth connecting element. The first connecting element is rotatably connected to the base. The second connecting element is fixed to the first axis. The third connecting element is movably connected to the second connecting element. The fourth connecting element is movably connected to the third connecting element, and the first optical module is fixedly connected to the fourth connecting element. The fixed part further comprises a housing and a top plate, the housing is fixedly arranged on the base plate. The top plate is fixedly arranged on the housing. The top plate and the housing form a containing space. The first optical module is arranged in the containing space. The second connecting element is fixed to a magnetic element. The second connecting element is at least partially arranged in the containing space. The third connecting element is arranged in the containing space. The fourth connecting element is arranged in the containing space. The fourth connecting element comprises a first limiting part and a second limiting part. The first limiting part has a first stop surface. The second limiting part has a third stop surface.

[0012] In some embodiments, the housing has a first recess, a second recess, and a third recess. The first limiting part is arranged in the first recess. The second limiting part is arranged in the second recess. The first recess has a second stop surface, which directly faces the first stop surface. The second recess has a fourth stop surface, which directly faces the third stop surface. The first stop surface and the third connecting element are located on both sides of the fourth connecting element. The third connecting element is arranged in the third recess. The first stop surface and the third stop surface face in opposite directions. The first stop surface and the second stop surface are parallel to each other. The third stop surface and the fourth stop surface are parallel to each other.

[0013] In some embodiments, the first stop surface, the second stop surface, the third stop surface, and the fourth stop surface are parallel to the third axis. The second connecting element comprises a first connecting hole, which has an elongated shape. The fourth connecting element comprises a second connecting hole, which has an elongated shape. The third connecting element passes through the first connecting hole and the second connecting hole. The third connecting element can slide in the first connecting hole and the second connecting hole. The first connecting hole and the second connecting hole at least partially overlap when viewed along the first axis. The third connecting element has a metallic material.

[0014] In some embodiments, the optical system further comprises a first positioning magnetic element, a second positioning magnetic element, a third positioning magnetic element, and a first sealing element. The first positioning magnetic element is arranged in the fixed part. The second positioning magnetic element is arranged in the fixed part. The third positioning magnetic element is arranged in the fixed part. The first sealing element is arranged in the fixed part. The third connecting element has magnetic permeability. The distances between the first positioning magnetic element, the second positioning magnetic element, and the third positioning magnetic element and the base plate are different from each other. The first sealing element and the fixed part form a sealed space for sealing the first optical module.

[0015] The beneficial effects of this disclosure are that the embodiments of this disclosure provide an optical system including a first optical module, a fixing part, and a driving module. The first optical module is used to connect to a first optical element. The first optical module is movable relative to the fixing part. The driving module is used to drive the first optical module to move relative to the fixing part. The fixing part includes an opening corresponding to the first optical module. Thus, the first optical module can be allowed to move in a specific direction relative to the fixing part to achieve functions such as autofocus or zoom. Attached Figure Description

[0016] The embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that, in accordance with industry standard practice, many features are not shown to scale and are for illustrative purposes only. In fact, the dimensions of the components may be arbitrarily enlarged or reduced to clearly demonstrate the features of this disclosure.

[0017] FIG. 1A This is a schematic diagram of an optical system according to some embodiments of the present disclosure.

[0018] FIG. 1B This is an exploded view of the optical system.

[0019] FIG. 1C This is a top view of the optical system.

[0020] FIG. 1D It is a top view of some components of an optical system.

[0021] FIG. 1E It is along FIG. 1C The second axis shows a cross-sectional view.

[0022] FIG. 2A This is a schematic diagram of some components of an optical system.

[0023] FIG. 2B This is a schematic diagram of some components of an optical system.

[0024] FIG. 3 This is a schematic diagram of the driver module and some components of the connecting components.

[0025] FIG. 4A This is a schematic diagram of some components of the driver module.

[0026] FIG. 4B This is a schematic diagram of some components of the driver module.

[0027] FIG. 4C This is a schematic diagram of some components of the driver module.

[0028] FIG. 4D This is a schematic diagram of some components of the driver module.

[0029] FIG. 4E This is a schematic diagram of some components of the driver module.

[0030] FIG. 5 is a schematic view of the base.

[0031] FIG. 6A is a schematic view of some elements of the drive module.

[0032] FIG. 6B is a schematic view of some elements of the drive module.

[0033] FIG. 7A is a schematic view of the drive module when driving the connection assembly.

[0034] FIG. 7B is a schematic view of the drive module when driving the connection assembly.

[0035] FIG. 8 is a schematic view of the optical system when being arranged in the electronic device.

[0036] The reference signs are as follows:

[0037] 100: drive module

[0038] 110: base

[0039] 120: base

[0040] 121: first positioning portion

[0041] 122: second positioning portion

[0042] 123: support portion

[0043] 130: coil

[0044] 131: first segment portion

[0045] 132: second segment portion

[0046] 140: magnetic conducting assembly

[0047] 141: first magnetic conducting element

[0048] 142: second magnetic conducting element

[0049] 143: third magnetic conducting element

[0050] 144: fourth magnetic conducting element

[0051] 145: fifth magnetic conducting element

[0052] 146: sixth magnetic conducting element

[0053] 150: magnetic element

[0054] 200: connection assembly

[0055] 210: first connecting element

[0056] 220: second connecting element

[0057] 221: first connecting hole

[0058] 230: third connecting element

[0059] 240: fourth connecting element

[0060] 241: first limiting portion

[0061] 242: second limiting portion

[0062] 243: first stop surface

[0063] 244: third stop surface

[0064] 245: second connecting hole

[0065] 300: fixing portion

[0066] 310: base plate

[0067] 320: top plate

[0068] 321: opening

[0069] 325: accommodation space

[0070] 330: housing

[0071] 331: first recessed portion

[0072] 332: second recessed portion

[0073] 333: third recessed portion

[0074] 334: second stop surface

[0075] 335: fourth stop surface

[0076] 400: first optical module

[0077] 501: first shaft

[0078] 502: second shaft

[0079] 503: third shaft

[0080] 511: first positioning magnetic element

[0081] 512: second positioning magnetic element

[0082] 513: third positioning magnetic element

[0083] 521, 522, 523, 531, 532, 533, 534: distance

[0084] 541, 542, 543: width

[0085] 601: first end

[0086] 602: second end

[0087] 603: third end

[0088] 604: fourth end

[0089] 611: first magnetic conducting part

[0090] 612: second magnetic conducting part

[0091] 621: first part

[0092] 622: second part

[0093] 623: third part

[0094] 624: fourth part

[0095] 631: first isolation part

[0096] 632: second isolation part

[0097] 633: third isolation part

[0098] 634: fourth isolation part

[0099] 635: fifth isolation part

[0100] 641: first opening

[0101] 642: second opening

[0102] 643: third opening

[0103] 644: fourth opening

[0104] 645: fifth opening

[0105] 646: sixth opening

[0106] 700: electronic device

[0107] 710: first sealing element

[0108] 720: second sealing element

[0109] 1000: optical system DETAILED DESCRIPTION

[0110] The following disclosure of various embodiments is provided as an example to provide a thorough understanding of claimed subject matter. Accordingly, the embodiments described below and wholly or in part illustrated in the drawings are not intended to limit the scope of claimed subject matter to any particular embodiments described. One skilled in the art will readily recognize from the following discussion and examples that alternative embodiments of the embodiments discussed and / or contemplated herein include, but are not limited to, such subject matter and / or methods that can include any of the features described below. Accordingly, actual scope of claimed subject matter is expressly intended to be limited only by the appended claims.

[0111] Further, repeated usage of the phrases such as "first," "second," "third," etc. can not imply a chronological or sequential order among the elements, operations, or structures described, but can be used to distinguish among various elements, operations, or structures described, and / or to distinguish from other embodiments described. Moreover, the manner in which the description is presented in this specification is not to be construed as limiting the scope of the concepts presented herein. For example, the concepts presented herein can be applied to other embodiments that do not employ all of the features, functions, or structures described in this specification. Furthermore, although embodiments presented herein can be described as performing a particular series of operations, it should be understood that the operations can be performed in any order, unless otherwise specifically noted, and that some operations can be performed in parallel, unless otherwise infeasible.

[0112] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.

[0113] Furthermore, the use of the terms "first," "second," etc. to describe various elements or components are not intended to convey a meaning of any sort of importance, priority, or order, but are simply intended to provide names for elements. In addition, the use of "a" and "an" are employed to describe elements and components, this is done merely for convenience and to give a single illustrative example unless otherwise specifically stated herein. This is also true of the terms "the" and "said," which are used to describe one element in a given example, but should be translatable with the context of the description to the understanding that the modified terminology can refer to both a singular as well as plural of a that is being described in a prior sentence.

[0114] Moreover, in some embodiments of the present disclosure, the terms such as "connected", "interconnected" and the like in relation to the joining, connecting, etc., unless specifically stated otherwise, can refer to two structures that are in direct contact, or can refer to two structures that are not in direct contact with each other, with other structures being disposed between the two structures. Also, the terms in relation to the joining, connecting, etc., can also include cases where both structures are movable, or both structures are fixed.

[0115] First, refer to FIGS. 1A-1E wherein FIG. 1A is a schematic diagram of an optical system 1000 according to some embodiments of the present disclosure, FIG. 1B is an exploded view of the optical system 1000, FIG. 1C is a top view of the optical system 1000, FIG. 1D is a top view of some elements of the optical system 1000, FIG. 1E is a cross-sectional view along FIG. 1C the second axis 502.

[0116] As shown in FIGS. 1A-1E , the optical system 1000 can mainly include a driving module 100, a connecting assembly 200, a fixing portion 300, and a first optical module 400. In some embodiments, the fixing portion 300 can include a base plate 310, a top plate 320, and a housing 330. The driving module 100 and the housing 330 can be disposed on the base plate 310. The first optical module 400 can be disposed in the housing 330. The top plate 320 can be disposed on the housing 330 and form a containing space 325 together with the housing 330. The first optical module 400 can be disposed in the containing space 325. The top plate 320 can have an opening 321 corresponding to the first optical module 400, for example, to expose part of the first optical module 400.

[0117] The first optical module 400 can be used to connect a first optical element (not shown). For example, the first optical module 400 can be an optical element driving mechanism, for example, having an auto focus (AF) or optical image stabilization (OIS) function. The aforementioned optical element can be, for example, a lens, a mirror, a prism, a beam splitter, an aperture, a liquid lens, an image sensor, a camera module, a ranging module, etc. It should be noted that the definition of the optical element here is not limited to elements related to visible light, and elements related to invisible light (such as infrared light, ultraviolet light) can also be included in the present disclosure.

[0118] The driving module 100 can be used to drive the first optical module 400 to move relative to the fixed part 300. For example, the driving module 100 can connect the first optical module 400 through the connecting assembly 200 to allow the first optical module 400 to move. For example, FIG. 2A 、 FIG. 2B is a schematic view of some elements of the optical system 1000, in which other elements in the fixed part 300 are shown. FIG. 3 is a schematic view of some elements of the driving module 100 and the connecting assembly 200. As shown in FIG. 1E 、 FIG. 3 , the driving module 100 can include a base 110, a pedestal 120, a coil 130, a magnetic conducting assembly 140, and a magnetic element 150. The connecting assembly 200 can include a first connecting element 210, a second connecting element 220, a third connecting element 230, and a fourth connecting element 240.

[0119] The base 110 can be fixedly arranged on the substrate 310, the pedestal 120 can be fixed on the base 110, the coil 130 can be fixed on the pedestal 120, the magnetic conducting assembly 140 can be arranged on the pedestal 120 and correspond to the coil 130. In some embodiments, the magnetic element 150 can correspond to the magnetic conducting assembly 140. In some embodiments, an axis passing through the center of the magnetic element 150 can be defined as a first axis 501, an axis parallel to the winding axis of the coil 130 (for example, an axis passing through the center of the coil 130) can be defined as a second axis 502, and an axis passing through the center of the first optical module 400 can be defined as a third axis 503. The first axis 501, the second axis 502, and the third axis 503 can be perpendicular to each other.

[0120] FIG. 4A 、 FIG. 4B 、 FIG. 4C 、 FIG. 4D 、 FIG. 4E is a schematic view of some elements of the driving module 100. FIG. 5 is a schematic view of the pedestal 120. FIG. 6A 、 FIG. 6B is a schematic view of some elements of the driving module 100. As shown in FIG. 5 , the pedestal 120 can include a first positioning part 121, a second positioning part 122, and be arranged on a supporting part 123. The first positioning part 121, the second positioning part 122, and the supporting part 123 can be used to support the coil 130.

[0121] In addition, the first positioning portion 121 and the second positioning portion 122 can further include a first isolation portion 631, a second isolation portion 632, a third isolation portion 633, a fourth isolation portion 634, and a fifth isolation portion 635 arranged in sequence. A first opening 641 can be defined between the first positioning portion 121 and the first isolation portion 631, a second opening 642 can be defined between the first isolation portion 631 and the second isolation portion 632, a third opening 643 can be defined between the second isolation portion 632 and the third isolation portion 633, a fourth opening 644 can be defined between the third isolation portion 633 and the fourth isolation portion 634, a fifth opening 645 can be defined between the fourth isolation portion 634 and the fifth isolation portion 635, and a sixth opening 646 can be defined between the fifth isolation portion 635 and the second positioning portion 122.

[0122] In some embodiments, the magnetic conducting assembly 140 can include a first magnetic conducting element 141, a second magnetic conducting element 142, a third magnetic conducting element 143, a fourth magnetic conducting element 144, a fifth magnetic conducting element 145, and a sixth magnetic conducting element 146 arranged in the first opening 641, the second opening 642, the third opening 643, the fourth opening 644, the fifth opening 645, and the sixth opening 646, respectively. In some embodiments, the first magnetic conducting element 141, the third magnetic conducting element 143, and the fifth magnetic conducting element 145 can have the same or similar shapes, and the second magnetic conducting element 142, the fourth magnetic conducting element 144, and the sixth magnetic conducting element 146 can have the same or similar shapes. In addition, the first magnetic conducting element 141, the second magnetic conducting element 142, the third magnetic conducting element 143, the fourth magnetic conducting element 144, the fifth magnetic conducting element 145, and the sixth magnetic conducting element 146 can have an elongated shape and a magnetic conducting material to guide the magnetic field generated by the coil 130 or the magnetic element 150.

[0123] The coil 130 can be wound around the first positioning portion 121 and the second positioning portion 122, so as to surround the first magnetic conducting element 141, the second magnetic conducting element 142, the third magnetic conducting element 143, the fourth magnetic conducting element 144, the fifth magnetic conducting element 145, and the sixth magnetic conducting element 146. For example, in some embodiments, the coil 130 can include a first segment 131 and a second segment 132 extending along the direction of the first axis 501, and the first positioning portion 121, the second positioning portion 122, the first magnetic conducting element 141, the second magnetic conducting element 142, the third magnetic conducting element 143, the fourth magnetic conducting element 144, the fifth magnetic conducting element 145, the sixth magnetic conducting element 146, the first isolation portion 631, the second isolation portion 632, the third isolation portion 633, the fourth isolation portion 634, the fifth isolation portion 635, the first opening 641, the second opening 642, the third opening 643, the fourth opening 644, the fifth opening 645, and the sixth opening 646 can be located between the first segment 131 and the second segment 132.

[0124] Observing along the third axis 503, as FIG. 4C As shown, the first positioning part 121, the second positioning part 122, the first isolation part 631, the second isolation part 632, the third isolation part 633, the fourth isolation part 634, and the fifth isolation part 635 can be at least partially exposed in the coil 130, that is, the length of the first positioning part 121, the second positioning part 122, the first isolation part 631, the second isolation part 632, the third isolation part 633, the fourth isolation part 634, and the fifth isolation part 635 can be greater than the thickness of the coil 130.

[0125] In addition, such as FIG. 6B As shown, in the direction extending from the first shaft 501, the width 541 of the first positioning portion 121 is different from the width 543 of the first isolation portion 631, and the width 542 of the second positioning portion 122 is different from the width 543 of the first isolation portion 631. For example, the width 541 can be greater than the width 543, the width 542 can be greater than the width 543, and the width 541 can be approximately equal to the width 542. This enhances the mechanical strength of the first positioning portion 121 and the second positioning portion 122, allowing the coil 130 to be wound around the first positioning portion 121 and the second positioning portion 122.

[0126] Since the first magnetic element 141, the third magnetic element 143, and the fifth magnetic element 145 may have the same or similar shapes, and the second magnetic element 142, the fourth magnetic element 144, and the sixth magnetic element 146 may have the same or similar shapes, the structural details of each magnetic element will be described below using the first magnetic element 141 and the second magnetic element 142 as examples. In some embodiments, such as FIG. 4D as well as FIG. 4E As shown, viewed along the first axis 501, the first magnetically conductive element 141 may have an elongated shape and may include a first magnetically conductive portion 611 and a first portion 621 connected to each other. The first magnetically conductive portion 611 has a first end 601, and the first portion 621 has a second end 602. In some embodiments, viewed along the first axis 501, the second magnetically conductive element 142 may have an elongated shape and may include a second magnetically conductive portion 612, a second portion 622, a third portion 623, and a fourth portion 624 connected to each other in sequence.

[0127] In some embodiments, the first end 601 does not overlap the second magnetic conducting element 142, the second end 602 overlaps the second magnetic conducting element 142, the third end 603 overlaps the first magnetic conducting element 141, and the fourth end 604 does not overlap the first magnetic conducting element 141 when viewed along the first axis 501. In some embodiments, the distance 531 between the first end 601 and the coil 130 is different from the distance 532 between the second end 602 and the coil 130, and the distance 533 between the third end 603 and the coil 130 is different from the distance 534 between the fourth end 604 and the coil 130. For example, the distance 531 can be greater than the distance 532, and the distance 533 can be less than the distance 534. In some embodiments, the distance 532 can be substantially equal to the distance 533, and the distance 531 can be substantially equal to the distance 534. In this way, the size of the drive module 100 in a particular direction can be reduced to achieve miniaturization.

[0128] In some embodiments, the first portion 621 does not overlap the second portion 622, the first portion 621 extends in a direction different from the third portion 623, and the first portion 621 at least partially overlaps the fourth portion 624 when viewed along the first axis 501. The coil 130 can surround the first portion 621 and the fourth portion 624, and the second portion 622 and the third portion 623 can be outside the coil 130. In this way, the first portion 621 and the fourth portion 624 can induce a magnetic field generated by the coil 130 and transmit to the first magnetic conducting portion 611 and the second magnetic conducting portion 612 (the second magnetic conducting element 142 can be transmitted through the second portion 622 and the third portion 623).

[0129] The magnetic element 150 can be disposed between the first magnetic conducting portion 611 and the second magnetic conducting portion 612, for example, between the first end 601 and the fourth end 604, such that the first magnetic conducting portion 611 and the second magnetic conducting portion 612 correspond to the magnetic element 150. This allows the magnetic element 150 to be subjected to magnetic fields in different directions through the first magnetic conducting portion 611 and the second magnetic conducting portion 612, respectively, thereby controlling the direction and magnitude of the electromagnetic driving force to control the rotation of the magnetic element 150.

[0130] In some embodiments, the first magnetic conducting element 141, the second magnetic conducting element 142, the third magnetic conducting element 143, the fourth magnetic conducting element 144, the fifth magnetic conducting element 145, and the sixth magnetic conducting element 146 can be sequentially arranged and do not overlap each other when viewed along the second axis 502 or the third axis 503. In addition, the first magnetic conducting element 141 does not overlap the second section 132, and the second magnetic conducting element 142 can at least partially overlap the second section 132 when viewed along the second axis 502. In this way, the size of the drive module 100 in a particular direction can be reduced to achieve miniaturization.

[0131] Since the first magnetic conducting element 141 and the third magnetic conducting element 143 have similar or identical shapes, and the second magnetic conducting element 142 and the fourth magnetic conducting element 144 have similar or identical shapes, it can be inferred that in the direction in which the first axis 501 extends, the first portion 621 of the first magnetic conducting element 141 at least partially overlaps the third magnetic conducting element 143, the first end 601 of the first magnetic conducting element 141 at least partially overlaps the third magnetic conducting element 143, the first end 601 of the first magnetic conducting element 141 does not overlap the fourth magnetic conducting element 144, the fourth end 604 of the second magnetic conducting element 142 at least partially overlaps the fourth magnetic conducting element 144, and the fourth end 604 of the second magnetic conducting element 142 does not overlap the third magnetic conducting element 143. In this way, the size of the driving module 100 in a particular direction can be reduced to achieve miniaturization.

[0132] FIG. 7A With FIG. 7B is a schematic view of the driving module 100 driving the connecting assembly 200. The first connecting element 210 can be rotatably disposed on the base 110, and the second connecting element 220 can be fixed on the first connecting element 210 to rotate together with the first connecting element 210. The magnetic element 150 can be fixed on the second connecting element 220 and can have a columnar shape, so as to generate an electromagnetic driving force to rotate corresponding to the magnetic field generated by the coil 130 and guided by the magnetic conducting assembly 140, thereby driving the first connecting element 210 and the second connecting element 220 to rotate together.

[0133] The second connecting element 220 can have a first connecting hole 221, and the fourth connecting element 240 can have a second connecting hole 245, and the first connecting hole 221 and the second connecting hole 245 at least partially overlap when viewed along the first axis 501. Therefore, the third connecting element 230 can be disposed in the first connecting hole 221 and the second connecting hole 245, so as to allow the third connecting element 230 to movably connect the second connecting element 220 and the fourth connecting element 240. For example, the first connecting hole 221 and the second connecting hole 245 can have an elongated shape, and the third connecting element 230 can have a metal material to allow the third connecting element 230 to rotate relative to the first connecting hole 221 and the second connecting hole 245 or slide along the extension direction of the first connecting hole 221 and the second connecting hole 245. The third connecting element 230 having a metal material can improve the durability when sliding and can reduce the friction when sliding. In this way, the electromagnetic driving force generated by the driving module 100 can move the fourth connecting element 240 in the direction in which the third axis 503 extends.

[0134] Please refer back to FIG. 1D , FIG. 1EThe second connecting element 220 can be disposed at least partially in the accommodation space 325, and the third connecting element 230 and the fourth connecting element 240 can be disposed in the accommodation space 325. In this way, the connecting elements can be protected. The fourth connecting element 240 can have a first limiting portion 241 and a second limiting portion 242. The first limiting portion 241 has a first stop surface 243, and the second limiting portion 242 has a third stop surface 244. In addition, the housing 330 can have a first recess 331, a second recess 332, and a third recess 333. The first limiting portion 241 is disposed in the first recess 331, the second limiting portion 242 is disposed in the second recess 332, and the third connecting element 230 is disposed in the third recess 333.

[0135] It should be noted that the first recess 331 has a second stop surface 334 directly facing the first stop surface 243, and the second recess 332 has a fourth stop surface 335 directly facing the third stop surface 244. In some embodiments, the first stop surface 243 and the third stop surface 244 face opposite directions, the first stop surface 243 and the second stop surface 334 are parallel to each other, and the third stop surface 244 and the fourth stop surface 335 are parallel to each other. For example, the first stop surface 243, the second stop surface 334, the third stop surface 244, and the fourth stop surface 335 can be parallel to the third axis 503. In this way, when the fourth connecting element 240 is driven by the driving module 100, the fourth connecting element 240 can be limited by the first stop surface 243, the second stop surface 334, the third stop surface 244, and the fourth stop surface 335 which are parallel to the third axis 503, and can only move along the third axis 503, so as to ensure that the directions of the optical axes of the optical elements disposed in the first optical module 400 remain consistent. In some embodiments, the first stop surface 243 is located on both sides of the fourth connecting element 240 relative to the third connecting element 230. In some embodiments, there can be at least a gap between the first stop surface 243 and the second stop surface 334, and between the third stop surface 244 and the fourth stop surface 335, so as to allow the fourth connecting element 240 to move relative to the housing 330.

[0136] As shown in FIGS. 10A and 10B, the optical system 1000 can further have two first positioning magnetic elements 511, two second positioning magnetic elements 512, and two third positioning magnetic elements 513, which are disposed on both sides of the third connecting element 230 and can be disposed in the fixing portion 300 (e.g., the housing 330). The first positioning magnetic elements 511, the second positioning magnetic elements 512, and the third positioning magnetic elements 513 can be, for example, magnets, and the third connecting element 230 can be a material having magnetic permeability, so as to react with the magnetic fields generated by the first positioning magnetic elements 511, the second positioning magnetic elements 512, and the third positioning magnetic elements 513, thereby fixing the position of the third connecting element 230. FIG. 2A 、 FIG. 2B As shown in FIGS. 10A and 10B, the optical system 1000 can further have two first positioning magnetic elements 511, two second positioning magnetic elements 512, and two third positioning magnetic elements 513, which are disposed on both sides of the third connecting element 230 and can be disposed in the fixing portion 300 (e.g., the housing 330). The first positioning magnetic elements 511, the second positioning magnetic elements 512, and the third positioning magnetic elements 513 can be, for example, magnets, and the third connecting element 230 can be a material having magnetic permeability, so as to react with the magnetic fields generated by the first positioning magnetic elements 511, the second positioning magnetic elements 512, and the third positioning magnetic elements 513, thereby fixing the position of the third connecting element 230.

[0137] For example, when the drive module 100 drives the fourth connecting element 240 to a position closer to the bottom ( FIG. 7A The third connecting element 230 can be attracted by the first positioning magnetic element 511 located near the bottom. Conversely, when the drive module 100 drives the fourth connecting element 240 to a position near the top, ( FIG. 7B The third connecting element 230 can be attracted by the second positioning magnetic element 512 and the third positioning magnetic element 513 located close to it. Thus, the third connecting element 230 (and the fourth connecting element 240 connected thereto) can be positioned in a specific location without requiring additional energy, thereby reducing the energy used. In some embodiments, such as FIG. 1C As shown, when viewed along the third axis 503, the third magnetic element 513 can be at least partially exposed in the top shell 320 to facilitate the installation of the third magnetic element 513.

[0138] In some embodiments, the distances between the first positioning magnetic element 511, the second positioning magnetic element 512, and the third positioning magnetic element 513 and the substrate 310 are different from each other. For example, such as FIG. 2B As shown, in the direction extending from the third axis 503, the first positioning magnetic element 511 has a distance 521 from the substrate 310, the second positioning magnetic element 512 has a distance 522 from the substrate 310, and the third positioning magnetic element 513 has a distance 523 from the substrate 310, and the distances 521, 522, and 523 are different from each other. For example, distance 521 may be smaller than distance 522, and distance 522 may be smaller than distance 523, thereby allowing the third connecting element 230 to be attracted and positioned in a specific location.

[0139] FIG. 8 This is a schematic diagram of an optical system 1000 installed on an electronic device 700 (e.g., a mobile phone). In some embodiments, the optical system 1000 may further include a first sealing element 710 disposed on the fixing portion 300. The first sealing element 710 may include, for example, a transparent material and may form a sealed space together with the fixing portion 300. The fourth connecting element 340 and the first optical module 400 may be disposed in this sealed space to prevent dust from the outside of the electronic device 700 from entering the optical system 1000. In addition, in some embodiments, the electronic device 700 may also have a second sealing element 720 made of transparent material to further isolate the optical system 1000 from the external environment, thereby improving the durability of the optical system 1000.

[0140] In summary, the present disclosure provides an optical system, which includes a first optical module, a fixed portion, and a driving module. The first optical module is used to connect a first optical element. The first optical module is movable relative to the fixed portion. The driving module is used to drive the first optical module to move relative to the fixed portion. The fixed portion includes an opening corresponding to the first optical module. Thus, the first optical module can be allowed to move in a specific direction relative to the fixed portion to achieve functions such as auto-focusing or zooming.

[0141] The special relative positions and size relationships of the elements disclosed in the present disclosure not only allow the optical system to be thin in a specific direction and small in size as a whole, but also allow the system to further improve optical quality (e.g., imaging quality or depth sensing accuracy) by being combined with different optical modules. Furthermore, the multiple shockproof systems of the optical modules can be used to greatly improve the effect of preventing hand shaking.

[0142] Although the embodiments of the present disclosure and their advantages have been disclosed, it should be understood that those skilled in the art, without departing from the spirit and scope of the present disclosure, can make changes, replacements, and modifications. In addition, the scope of protection of the present disclosure is not limited to the specific embodiments described in the specification. Any person skilled in the art can understand the current or future developed processes, machines, manufactures, compositions of matter, devices, methods, and steps from the disclosure of the present disclosure, as long as they can substantially achieve the same function or obtain substantially the same results as in the embodiments described herein. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufactures, compositions of matter, devices, methods, and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An optical system, comprising: a first optical module configured to connect a first optical component; a fixed portion relative to which the first optical module is movable; and a driving module configured to drive the first optical module to move relative to the fixed portion, the driving module comprising a magnetic conducting assembly and a coil, the coil comprising: a first segment extending along a first axis; and a second segment extending along the first axis; the magnetic conducting assembly comprising: a first magnetic conducting element having an elongated structure and comprising a first end and a second end; and a second magnetic conducting element having an elongated structure and comprising a third end and a fourth end; the first end and the second magnetic conducting element do not overlap when viewed along the first axis; the second end and the second magnetic conducting element overlap when viewed along the first axis; the third end and the first magnetic conducting element overlap when viewed along the first axis; the fourth end and the first magnetic conducting element do not overlap when viewed along the first axis; a distance between the first end and the coil is different from a distance between the second end and the coil when viewed along the first axis; a distance between the third end and the coil is different from a distance between the fourth end and the coil when viewed along the first axis; wherein the fixed portion comprises an opening corresponding to the first optical module.

2. The optical system of claim 1, wherein: the fixed portion comprises a substrate; the driving module further comprises: a base disposed on the substrate; a pedestal having a plastic material disposed on the base; and a magnetic element corresponding to the magnetic conducting assembly; the coil is fixed to the pedestal; the magnetic conducting assembly corresponding to the coil is disposed on the pedestal.

3. The optical system of claim 2, wherein: wherein: an axis of winding of the coil is parallel to a second axis; the second axis is perpendicular to the first axis; a third axis is perpendicular to the first axis and the second axis; the first magnetic conducting element has a magnetic conducting material; the second magnetic conducting element has a magnetic conducting material; the magnetic element is located between the first end and the fourth end when viewed along the first axis; the fourth end at least partially overlaps with the pedestal in a direction in which the second axis extends.

4. The optical system of claim 3, wherein: the first magnetic conducting element comprises: a first magnetic conducting portion corresponding to the magnetic element; and a first portion connecting the first magnetic conducting portion; the second magnetic conducting element comprises: a second magnetic conducting portion corresponding to the magnetic element; a second portion connecting the second magnetic conducting portion; a third portion connecting the second portion; and a fourth portion connecting the third portion; wherein: the first portion and the second portion do not overlap when viewed along the first axis; the first portion and a direction in which the third portion extends are different when viewed along the first axis; the first portion and the fourth portion at least partially overlap when viewed along the first axis; the coil surrounds the first portion and the fourth portion; the second portion and the third portion are located outside the coil; a distance between the first end and the coil is greater than a distance between the third end and the coil when viewed along the first axis; a distance between the second end and the coil is less than a distance between the fourth end and the coil when viewed along the first axis; ​ The first magnetic conductive element and the second magnetic conductive element do not overlap when viewed along the second axis; The first magnetic conductive element and the second magnetic conductive element do not overlap when viewed along the third axis; The first magnetic conductive element and the second segment do not overlap when viewed along the second axis; The second magnetic conductive element at least partially overlaps with the second segment when viewed along the second axis.

5. The optical system of claim 4, wherein the magnetic conductive assembly further comprises: a third magnetic conductive element having an elongated structure; and a fourth magnetic conductive element having an elongated structure; wherein: the third magnetic conductive element has a magnetic conductive material; the fourth magnetic conductive element has a magnetic conductive material; the first magnetic conductive element, the second magnetic conductive element, the third magnetic conductive element, and the fourth magnetic conductive element are sequentially arranged in the direction in which the first axis extends; the first magnetic conductive element, the second magnetic conductive element, the third magnetic conductive element, and the fourth magnetic conductive element do not overlap when viewed along the third axis; the first portion of the first magnetic conductive element at least partially overlaps with the third magnetic conductive element in the direction in which the first axis extends; the first end of the first magnetic conductive element at least partially overlaps with the third magnetic conductive element in the direction in which the first axis extends; the first end of the first magnetic conductive element does not overlap with the fourth magnetic conductive element in the direction in which the first axis extends; the fourth end of the second magnetic conductive element at least partially overlaps with the fourth magnetic conductive element in the direction in which the first axis extends; the fourth end of the second magnetic conductive element does not overlap with the third magnetic conductive element in the direction in which the first axis extends.

6. The optical system of claim 5, wherein the base comprises: a support portion; a first positioning portion disposed on the support portion to support the coil; a second positioning portion disposed on the support portion to support the coil; a first opening on the support portion to accommodate the first magnetic conductive element; a second opening on the support portion to accommodate the second magnetic conductive element; and a first isolation portion between the first opening and the second opening; wherein: the coil is wound around the first positioning portion and the second positioning portion; the first opening is between the first positioning portion and the second positioning portion; the first positioning portion is between the first segment and the second segment of the coil; the second positioning portion is between the first segment and the second segment of the coil; the first isolation portion is between the first segment and the second segment of the coil; the first isolation portion is between the first positioning portion and the second positioning portion; the first positioning portion is at least partially exposed from the coil when viewed along the third axis; the second positioning portion is at least partially exposed from the coil when viewed along the third axis; the first isolation portion is at least partially exposed from the coil when viewed along the third axis; a width of the first positioning portion is different from a width of the first isolation portion in the direction in which the first axis extends; a width of the second positioning portion is different from a width of the first isolation portion in the direction in which the first axis extends.

7. The optical system of claim 6, further comprising a connection assembly, wherein the driving module connects the first optical module through the connection assembly, the connection assembly comprising: ​ a first connecting element rotatably connected to the base; a second connecting element fixed to the first connecting element; a third connecting element movably connected to the second connecting element; a fourth connecting element movably connected to the third connecting element, wherein the first optical module is fixedly connected to the fourth connecting element; the fixing portion further comprises: a housing fixedly disposed on the substrate; and a top plate fixedly disposed on the housing; wherein: the top plate and the housing form a receiving space; the first optical module is disposed in the receiving space; the second connecting element is fixed to the magnetic element; the second connecting element is at least partially disposed in the receiving space; the third connecting element is disposed in the receiving space; the fourth connecting element is disposed in the receiving space; the fourth connecting element comprises a first limiting portion and a second limiting portion; the first limiting portion has a first stop surface; the second limiting portion has a third stop surface.

8. The optical system of claim 7, wherein: the housing has a first recess, a second recess, and a third recess; the first limiting portion is disposed in the first recess; the second limiting portion is disposed in the second recess; the first recess has a second stop surface directly facing the first stop surface; the second recess has a fourth stop surface directly facing the third stop surface; the first stop surface and the third connecting element are located on two sides of the fourth connecting element; the third connecting element is disposed in the third recess; the first stop surface and the third stop surface face in opposite directions; the first stop surface and the second stop surface are parallel to each other; the third stop surface and the fourth stop surface are parallel to each other.

9. The optical system of claim 8, wherein: the first stop surface, the second stop surface, the third stop surface, and the fourth stop surface are parallel to the third axis; the second connecting element comprises a first connecting hole having an elongated shape; the fourth connecting element comprises a second connecting hole having an elongated shape; the third connecting element passes through the first connecting hole and the second connecting hole; the third connecting element is slidable in the first connecting hole and the second connecting hole; the first connecting hole and the second connecting hole at least partially overlap when viewed along the first axis; the third connecting element has a metallic material.

10. The optical system of claim 9, further comprising: a first positioning magnetic element disposed in the fixing portion; a second positioning magnetic element disposed in the fixing portion; a third positioning magnetic element disposed in the fixing portion; and a first sealing element disposed in the fixing portion; wherein: the third connecting element has magnetic permeability; distances between the first positioning magnetic element, the second positioning magnetic element, the third positioning magnetic element, and the substrate are different from each other; the first sealing element and the fixing portion form a sealed space for sealing the first optical module. ​

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