CN215449772U - Optical system - Google Patents

Abstract

The utility model provides an optical system which is arranged on an electronic device. The optical system comprises a movable part, a fixed part, a first driving component and an intermediate module. The movable part is used for connecting the optical module. The fixed part is fixedly connected with the electronic device, and the movable part can move relative to the fixed part. The first driving component is used for driving the movable part to move relative to the fixed part. The movable part is movably connected with the fixed part through the middle module. The utility model has the advantages that the optical system can achieve ultra-thinning in a specific direction and overall miniaturization, the optical quality is further improved, and the effect of preventing hand shock is greatly improved by utilizing each optical module to achieve a multiple shock-proof system.

Description

Optical system

Technical Field

The present invention relates to an optical system.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have a function of taking pictures or recording videos. The use of these electronic devices is becoming more common and the design direction of these electronic devices is being developed to be more convenient and thinner to provide more choices for users.

The electronic device with the photographing or video recording function is usually provided with a driving mechanism to drive an Optical element (such as a lens) to move along an Optical axis, so as to achieve an Optical anti-shake (Optical image stabilization, OIS) function. The light can pass through the optical element to form an image on the photosensitive element. However, the trend of mobile devices is to have a smaller size and a higher durability, so that how to effectively reduce the size and improve the durability of the driving mechanism becomes an important issue.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an optical system which is arranged on an electronic device. The optical system comprises a movable part, a fixed part, a first driving component and an intermediate module. The movable part is used for connecting the optical module. The fixed part is fixedly connected with the electronic device, and the movable part can move relative to the fixed part. The first driving component is used for driving the movable part to move relative to the fixed part. The movable part is movably connected with the fixed part through the middle module.

In some embodiments, the middle module includes a first elastic element, and the movable portion is movably connected to the fixed portion via the first elastic element. The first elastic element comprises a first end and a second end. The first elastic element has an elongated structure and extends along the direction of the main shaft. The first elastic element is made of metal material. The fixing portion includes a first setting portion, a second setting portion, a frame, a top cover, a bottom cover, and a first avoiding portion. The first avoiding portion is used for accommodating at least part of the first elastic element. The first end of the first elastic element is positioned at the first setting part. A second end of the first elastic element is positioned at the second setting part. The first setting part is provided with a sunken structure and is formed between the frame and the top cover. The top cover has a plate-shaped structure and is perpendicular to the main shaft. The second setting part has a concave structure or a perforated structure and is formed on the bottom cover. The frame is at least partially positioned between the top cover and the bottom cover when viewed in a direction perpendicular to the major axis. The first avoidance portion has a tapered structure.

In some embodiments, the mobile portion comprises a second avoidance portion for receiving at least a portion of the first resilient element. The second avoidance part is provided with a tapered structure, and the tapered structure of the second avoidance part and the tapered structure of the first avoidance part are tapered towards different directions. The first elastic element passes through the first avoidance part and the second avoidance part. The optical system also comprises a first damping element which is directly arranged on the first elastic element and is used for inhibiting the abnormal movement of the movable part relative to the fixed part. The first damping element is made of resin. The first damping element directly contacts the fixed part or the movable part. The first damping element directly contacts the first avoidance portion or the second avoidance portion.

In some embodiments, the first damping element directly contacts the fixed portion and the movable portion. The first damping element directly contacts the first avoidance portion and the second avoidance portion. The tapered structure of the first avoidance part and the tapered structure of the second avoidance part have opposite tapered directions. The movable part comprises a bearing seat used for connecting the first optical element. The first optical element includes a first lens. The bearing seat can move relative to the fixed part. The bearing seat can move relative to the photosensitive element of the optical module. The photosensitive element is used for receiving the light and outputting an image signal.

In some embodiments, the optical system further comprises a second drive assembly, a second resilient element, and a third resilient element. The second driving assembly is used for driving the bearing seat to move relative to the fixing part. The bearing seat is movably connected with the fixing part through a second elastic element. The bearing seat is movably connected with the fixing part through a third elastic element. The second elastic element has a plate-like structure. The second elastic element is perpendicular to the main shaft. The third elastic element has a plate-like structure. The third elastic element is perpendicular to the main shaft.

Drawings

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in accordance with standard practice in the industry, various features are not shown to scale and are merely illustrative. In fact, the dimensions of the elements may be arbitrarily expanded or reduced to clearly illustrate the features of the present invention.

FIG. 1 is a perspective view of an optical system shown in accordance with some embodiments of the present invention.

Fig. 2 is an exploded view of the optical system.

Fig. 3 is a plan view of the optical system.

Fig. 4A is a cross-sectional view of the optical system along line 5-a-5-a in fig. 3.

Fig. 4B is a cross-sectional view of the optical system along line 5-B-5-B in fig. 3.

Fig. 5 is a cross-sectional perspective view of the optical system along line 5-B-5-B in fig. 3.

Fig. 6A, 6B, 6C, 6D, 6E are schematic diagrams of some elements in an optical system.

Fig. 7 is a schematic diagram of an electronic device.

Description of the symbols

5-110: top cover

5-120: frame structure

5-130: outer frame

5-140: bottom cover

5-151: the first side edge

5-152: second side edge

5-153: third side edge

5-154: the fourth side edge

5-200: bearing seat (Movable part)

5-300: first drive assembly

5-305: coil substrate

5-311: first coil

5-312: second coil

5-313: third coil

5-314: fourth coil

5-315: fifth coil

5-316: sixth coil

5-317: seventh coil

5-321: first magnetic element

5-322: second magnetic element

5-323: third magnetic element

5-324: fourth magnetic element

5-325: fifth magnetic element

5-331: first magnetic unit

5-332: second magnetic unit

5-340: second drive assembly

5-400: intermediate module

5-500: circuit module

5-610: second elastic element

5-620: third elastic element

5-700: optical module

5-710: photosensitive element

5-711: optical signal

5-712: image signal

5-720: shell body

5-721: top cover

5-730: base seat

5-740: second optical element

5-800: position sensing module

5-811: first sensing assembly

5-812: second sensing assembly

5-813: third sensing assembly

5-814: fourth sensing assembly

5-821: first sensing element

5-822: second sensing element

5-823: third sensing element

5-831: first reference element

5-832: second reference element

5-833: third reference element

5-841: a first sensing signal

5-842: the second sensing signal

5-843: third sensing signal

5-844: the fourth sensing signal

5-900: first optical element

5-910: a first setting part

5-920: a second setting part

5-931: first avoidance part

5-932: second avoidance part

5-940: first damping element

5-1000: optical system

5-2000: electronic device

5-2100: control unit

5-C1, 5-C2: connecting wire

5-F: fixing part

5-H1,5-H2,5-W1, 5-W2: maximum size

5-O: main shaft (first rotating shaft)

Detailed Description

Various embodiments or examples are disclosed below to practice various features of the provided subject matter, and embodiments of specific elements and arrangements thereof are described below to illustrate the present invention. These examples are, of course, intended to be illustrative only and should not be construed as limiting the scope of the utility model. For example, reference in the specification to a first feature being formed over a second feature can include embodiments in which the first feature is in direct contact with the second feature, and can also include embodiments in which additional features are included between the first feature and the second feature, i.e., the first feature is not in direct contact with the second feature.

Moreover, where specific reference numerals or designations are used in various embodiments, these are merely used to identify the utility model in a simplified and clear manner, and are not intended to necessarily represent a particular relationship between the various embodiments and/or structures discussed. Furthermore, forming, connecting, and/or coupling another feature over, to, and/or to another feature in the present disclosure may include embodiments in which features are formed in direct contact, and may also include embodiments in which additional features may be formed interposing the above-described features, such that the above-described features may not be in direct contact. Furthermore, spatially relative terms, such as "vertical," "above," "upper," "lower," "bottom," and the like, may be used herein to facilitate describing one element(s) or feature(s) relationship to another element(s) or feature(s) in the figures, and are intended to encompass different orientations of the device in which the features are included.

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 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 invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Furthermore, the use of ordinal numbers such as "first," "second," etc., in the specification and claims to modify a claim element does not by itself connote any preceding element or act as a prelude to the more detailed description that is presented later, nor is the order in which a claimed element is presented or the order in which a claimed element may be easily distinguished from another element by the same name.

Furthermore, in some embodiments of the present invention, terms concerning bonding, connecting, such as "connected," "interconnected," and the like, may refer to two structures being in direct contact or, alternatively, may refer to two structures not being in direct contact, with another structure being interposed therebetween, unless otherwise specified. And the terms coupled and connected should also be construed to include both structures being movable or both structures being fixed.

Fig. 1 is a perspective view of an optical system 5-1000 according to some embodiments of the present invention, fig. 2 is an exploded view of the optical system 5-1000, fig. 3 is a top view of the optical system, fig. 4A is a cross-sectional view of the optical system 5-1000 taken along line 5-a-5-a in fig. 3, fig. 4B is a cross-sectional view of the optical system 5-1000 taken along line 5-B-5-B in fig. 3, fig. 5 is a cross-sectional perspective view of the optical system 5-1000 taken along line 5-B-5-B in fig. 3, and fig. 6A, 6B, and 6C are schematic views of some elements of the optical system 5-1000. Fig. 7 is a schematic diagram of the electronic device 5-2000.

In some embodiments, the optical system 5-1000 may mainly include a top cover 5-110, a frame 5-120, an outer frame 5-130, a bottom cover 5-140, a carrier 5-200, a first driving assembly 5-300, a coil substrate 5-305, an intermediate module 5-400, a circuit module 5-500, a second elastic element 5-610, and a third elastic element 5-620 arranged along a main axis 5-O. The optical system 5-1000 may be disposed on an electronic device 5-2000 (fig. 7), such as a mobile phone, a tablet computer, a notebook computer, etc., but not limited thereto.

The optical system 5-1000 may be used to drive the first optical element 5-900, or may be used to drive optical elements such as a lens (lens), a mirror (mirror), a prism (prism), a beam splitter (beam splitter), an aperture (aperture), a liquid lens (liquid lens), a light sensor (image sensor), a camera module (camera module), a ranging module (ranging module), and the like. It should be noted that the definition of optical elements herein is not limited to visible light related elements, and elements related to invisible light (e.g., infrared light, ultraviolet light) and the like can also be included in the present invention. In some embodiments, the first optical element 5-900 may have a first lens.

In some embodiments, the top cover 5-110, the frame 5-120, the outer frame 5-130, and the bottom cover 5-140 can be collectively referred to as a fixing portion 5-F for fixedly connecting to the electronic device 5-2000. The electronic devices 5-2000 may be, for example, mobile phones, notebook computers, tablet computers, and other electronic devices having a camera function.

In some embodiments, the photosensitive element 5-710, the housing 5-720, the base 5-730, and the second optical element 5-740 may be collectively referred to as an optical module 5-700, and the carrying base 5-200 may be referred to as a movable portion 5-200, and the movable portion 5-200 may be used to connect the optical module 5-700 and may be used to carry the first optical element 5-900 to move relative to the fixed portion 5-F or the photosensitive element 5-710 of the optical module 5-700.

The first driving component 5-300 may comprise a combination of a magnet and a coil, or may also comprise a piezoelectric element, a shape memory alloy, or other driving elements, so that the carrier 5-200 and the first optical element 5-900 disposed in the carrier 5-200 can move relative to the fixed portion 5-F or the optical module 5-700, for example, to achieve an Automatic Focusing (AF) effect or an optical anti-shake (OIS) effect.

As shown in fig. 6A to 6E, a first coil 5-311, a second coil 5-312, a third coil 5-313, a fourth coil 5-314, and a fifth coil 5-315 may be embedded in the coil substrate 5-305. The first coil 5-311, the second coil 5-312 may correspond to the first magnetic unit 5-331, the third coil 5-313 may correspond to the third magnetic element 5-323, the fourth coil 5-314, the fifth coil 5-315 may correspond to the second magnetic unit 5-332, e.g. may overlap each other in the Z-direction. The first magnetic unit 5-331 includes a first magnetic element 5-321, a second magnetic element 5-322, and the second magnetic unit 5-332 includes a fourth magnetic element 5-324, a fifth magnetic element 5-325, which may overlap in the Z direction. The first magnetic element 5-321, the second magnetic element 5-322, the third magnetic element 5-323, the fourth magnetic element 5-324 and the fifth magnetic element 5-325 can be magnets, for example, and can generate a magnetic field, and when the first coil 5-311, the second coil 5-312, the third coil 5-313, the fourth coil 5-314 and the fifth coil 5-315 pass through current, the magnetic field can interact with each other to generate an electromagnetic driving force, so that the movable part 5-200 can be driven to move relative to the fixed part 5-F.

In some embodiments, the first coil 5-311, the second coil 5-312, the third coil 5-313 and the fourth coil 5-314 are electrically independent from each other, so that the first coil 5-311, the second coil 5-312, the third coil 5-313 and the fourth coil 5-314 can be separately controlled to provide driving force for the movable part 5-200 in different directions, for example, to generate translation in direction X, Y, Z or rotation relative to axis X, Y, Z or other axes. In addition, the fifth coil 5-315 may be electrically independent from the second coil 5-312, the third coil 5-313, and the fourth coil 5-314, and electrically connected to the first coil 5-311 to boost the thrust.

As shown in fig. 6B, a line 5-C1 connecting the center of the first coil 5-311 and the center of the fourth coil 5-314 is not perpendicular or parallel to the first direction (X direction) and the second direction (Y direction) when viewed in the Z direction. Further, a line 5-C2 connecting the center of the first coil 5-311 and the center of the fifth coil 5-315 may be parallel to the first direction (X direction). In other words, the first coil 5-311 may be aligned in the Y direction with the fifth coil 5-315.

As shown in fig. 3, the fixing portion 5-F has a polygonal structure when viewed along the major axis 5-O, and has a first side 5-151, a second side 5-152, a third side 5-153, and a fourth side 5-154 arranged in order in a counterclockwise direction. The first coil 5-311, the second coil 5-312 are located on the first side 5-151 of the fixing portion 5-F, the third coil 5-313 is located on the second side 5-152 of the fixing portion 5-F, and the fourth coil 5-314, the fifth coil 5-315 are located on the third side 5-153 of the fixing portion 5-F. The first side 5-151 extends in a first direction (X-direction), the second side 5-152 extends in a second direction (Y-direction), the third side 5-153 is parallel to the first side 5-151 and the fourth side 5-154 is parallel to the second side 5-152. The first side edge 5-151 is located between the second side edge 5-152 and the fourth side edge 5-154, and the second side edge 5-152 is located between the first side edge 5-151 and the third side edge 5-153.

As shown in FIG. 6D and FIG. 6E, the maximum dimension 5-H1 (height) of the first magnetic unit 5-331 is different from the maximum dimension 5-H2 of the third magnetic element 5-323, e.g., the maximum dimension 5-H1 may be larger than the maximum dimension 5-H2, in the direction in which the major axis 5-O extends (Z direction). Furthermore, the maximum dimension 5-W1 (width) of the first magnetic unit 5-331 in the second direction (Y direction) is different from the maximum dimension 5-W2 (width) of the third magnetic element 5-323 in the first direction (X direction), e.g., the maximum dimension 5-W1 may be smaller than the maximum dimension 5-W2.

The optical system 5-1000 may further have a second driving assembly 5-340 for driving the movable portion 5-200 to move relative to the fixed portion 5-F. The first driving assembly 5-300 and the second driving assembly 5-340 may drive the movable portion 5-200 to move in different directions. The second drive assembly 5-340 may comprise a sixth coil 5-316, a seventh coil 5-317, corresponding to the first magnetic unit 5-331, respectively, and the second magnetic unit 5-332, respectively, e.g. may at least partially overlap in the Y-direction. The sixth coil 5-316 may be located at the first side 5-151 and the seventh coil 5-317 may be located at the third side 5-153, as seen in the direction of the main axis 5-O.

The middle module 5-400, the second elastic member 5-610, and the third elastic member 5-620 may be disposed between the fixed part 5-F and the movable part 5-200 to movably connect the fixed part 5-F and the movable part 5-200, thereby allowing the movable part 5-200 to movably connect the fixed part 5-F. The intermediate module 5-400 may for example comprise a first elastic element 5-410, the first elastic element 5-410 may for example be a suspension wire. The second elastic element 5-610, the third elastic element 5-620 may be, for example, a spring leaf, which may have a plate-like structure and be perpendicular to the main axis 5-O. The middle module 5-400, the second elastic element 5-610, and the third elastic element 5-620 comprise, for example, a metal material, and may be electrically connected to each electronic element in the optical system 5-1000, for example, to the first driving component 5-300 or the circuit module 5-500.

The circuit module 5-500 is, for example, a flexible printed circuit board (FPC) which can be fixed to the fixing portion 5-F by adhesion. In the present embodiment, the circuit modules 5-500 are electrically connected to other electronic components disposed inside or outside the optical system 5-1000. For example, the circuit module 5-500 can transmit an electrical signal to the first driving component 5-300 or the second driving component 5-340, thereby controlling the movement of the carrying seat 5-200 in X, Y or Z direction, so as to achieve the functions of Auto Focus (AF) or optical hand vibration prevention (OIS). As shown in FIG. 7, the photosensitive element 5-710 can be used for receiving an optical signal 5-711 from the outside and outputting an image signal 5-712 to the control unit 5-2100 of the electronic device 5-2000.

As shown in fig. 4B and 5, the first elastic element 5-410 of the intermediate module 5-400 has an elongated structure, extending in the direction of the major axis 5-O (Z direction). The fixing portion 5-F includes a first setting portion 5-910 and a second setting portion 5-920, wherein a first end 5-411 of the first elastic element 5-410 is disposed at the first setting portion 5-910, and a second end 5-412 of the first elastic element 5-410 is disposed at the first setting portion 5-920. The first setting portion 5-910 has a concave structure and is formed between the frame 5-120 and the top cover 5-110 of the fixing portion 5-F. The top cover 5-110 has a plate-like structure, perpendicular to the direction in which the main shaft 5-O extends. The second setting portion 5-920 may have a concave structure or a perforated structure formed at the bottom cover 5-140 of the fixing portion 5-F. The frame 5-120 is at least partially positioned between the top cover 5-110 and the bottom cover 5-140.

In addition, as shown in FIG. 5, the fixing portion 5-F may further include a first avoidance portion 5-931 and a second avoidance portion 5-932 for accommodating a portion of the first elastic element 5-410, so as to make room for the first elastic element 5-410 to pass through. The first avoidance part 5-931 may be located at the outer frame 5-130 of the fixing part 5-F, and the second avoidance part 5-932 may be located at the movable part 5-200. The first avoidance parts 5 to 931 and the second avoidance parts 5 to 932 may have a tapered structure. Further, the tapered structure of the first avoidance portion 5-931 is tapered in a different direction, for example, in an opposite direction, than the tapered structure of the second avoidance portion 5-932.

In some embodiments, as shown in FIG. 4B, a first damping element 5-940 may be disposed in the optical system 5-1000, for example, directly on the first elastic element 5-410, to damp the vibration of the first elastic element 5-410, for example, to suppress the abnormal movement of the movable portion 5-200 relative to the fixed portion 5-F. The first damping element 5-940 may be, for example, a gel or may be of a resin material. In some embodiments, the first damping element 5-940 may directly contact the fixed portion 5-F and/or the movable portion 5-200. In addition, the first damping element 5-940 can also directly contact the first avoidance portion 5-931 and/or the second avoidance portion 5-932 to fill the gap in the optical system 5-1000 to avoid the abnormal movement of the movable portion 5-200 relative to the fixed portion 5-F.

The light sensing element 5-710 and the second optical element 5-740 of the optical module 5-700 can be disposed in a receiving space formed by the housing 5-720 and the base 5-730, for example, the light sensing element 5-710 and the housing 5-720 can be fixed on the base 5-730. The housing 5-720 may include a top cover 5-721 having a plate-like structure and perpendicular to the main axis 5-O. The photosensitive element 5-710 may be located between the top cover 5-721 and the base 5-730 in the direction in which the main axis 5-O extends (Z direction).

The second optical element 5-740 is, for example, a filter element, which can only allow light with specific wavelength to pass through to reach the photosensitive element 5-710, and filter other light with unwanted wavelength, i.e. can filter electromagnetic wave with specific wavelength. For example, the second optical element 5-740 can filter infrared light and let visible light pass through, but not limited thereto. The second optical element 5-740 may correspond to the photosensitive element 5-710. Therefore, the light rays sensed by the photosensitive elements 5-710 can be closer to the naked eyes.

In some embodiments, as shown in FIG. 6C, a position sensing module 5-800 may also be provided in the optical system 5-1000, and may be used to sense the movement of the movable portion 5-200 relative to the fixed portion 5-F. The position sensing module 5-800 may include, for example, a first sensing element 5-811, a second sensing element 5-812, a third sensing element 5-813, and a fourth sensing element 5-814. The first sensing element 5-811 can include a first sensing element 5-821 and a first reference element 5-831, the second sensing element 5-812 can include a second sensing element 5-822 and a second reference element 5-832, and the third sensing element 5-813 can include a third sensing element 5-823 and a third reference element 5-833. The fourth sensing assembly 5-814 can include a fourth sensing element 5-824 and a fourth reference element 5-834.

The first sensing elements 5-821, the second sensing elements 5-822, the third sensing elements 5-823, and the fourth sensing elements 5-824 may include Hall Effect sensors (Hall sensors), magnetoresistive Effect sensors (MR sensors), Giant magnetoresistive Effect sensors (GMR sensors), Tunneling magnetoresistive Effect sensors (TMR sensors), or flux sensors (flux sensors).

The first reference element 5-831, the second reference element 5-832, the third reference element 5-833, the fourth reference element 5-834 may be, for example, magnets and may, for example, be arranged on the movable part 5-200. The first sensing elements 5-821, the second sensing elements 5-822, the third sensing elements 5-823, and the fourth sensing elements 8-824 may be disposed on the fixed portion 5-F, respectively, and may be configured to sense a change in a magnetic field of the first reference elements 5-831, the second reference elements 5-832, the third reference elements 5-833, and the fourth reference elements 5-834 when the movable portion 5-200 moves relative to the fixed portion 5-F, respectively, so as to obtain a position of the movable portion 5-200 relative to the fixed portion 5-F, and may respectively output the first sensing signals 5-841, the second sensing signals 5-842, the third sensing signals 5-843, and the fourth sensing signals 5-844 to the control units 5-2100 of the electronic devices 5-2000. The control unit 5-2100 is operable to receive the first sensing signal 5-841, the second sensing signal 5-842, the third sensing signal 5-843, and the fourth sensing signal 5-844 to analyze the movement of the movable portion 5-200 relative to the fixed portion 5-F. For example, the control unit 5-2100 may be used to analyze the linear motion of the movable portion 5-200 relative to the fixed portion 5-F or the rotation about a first rotation axis 5-O (main axis 5-O), the first rotation axis 5-O may be perpendicular to the light-sensing surface 5-711 of the light-sensing element 5-710 (FIG. 4A).

In some embodiments, the locations of first reference elements 5-831, second reference elements 5-832, third reference elements 5-833, and fourth reference elements 5-834 and the locations of first sensing elements 5-821, second sensing elements 5-822, third sensing elements 5-823, and fourth sensing elements may also be interchanged, depending on design requirements.

The direction of arrangement of the first sensing elements 5-811 and the second sensing elements 5-812 is neither parallel nor perpendicular to the direction of arrangement of the second sensing elements 5-812 and the third sensing elements 5-813 when viewed in the direction in which the main axis 5-O extends. For example, the first sensing elements 5-811 and the second sensing elements 5-812 may be arranged in the Y-direction, i.e., perpendicular to the first direction (X-direction). While the second sensing elements 5-812 and the third sensing elements 5-813 are arranged in a direction that is neither perpendicular nor parallel to the Y-direction. Whereby movements of the movable parts 5-200 in different directions can be sensed. In some embodiments, the first sensing elements 5-811 and the second sensing elements 5-812 may also be arranged in the X direction, i.e. may be parallel to the first direction.

In some embodiments, the first reference element 5-831, the second reference element 5-832, and the third magnetic element 5-323 can have an integrally formed structure, or can be the same element. The third reference element 5-833 and the fourth magnetic element 5-324 may have an integrally formed structure or may be the same element to reduce the required space for miniaturization.

As shown in FIG. 6C, the first sensing element 5-821 is at least partially located in the third coil 5-313, the second sensing element 5-822 is at least partially located in the third coil 5-313, and the third sensing element 5-823 is at least partially located in the fourth coil 5-314 as viewed along the direction of the main axis 5-O, to reduce the required volume and achieve miniaturization.

In summary, the present invention provides an optical system for being disposed in an electronic device. The optical system comprises a movable part, a fixed part, a first driving component and an intermediate module. The movable part is used for connecting the optical module. The fixed part is fixedly connected with the electronic device, and the movable part can move relative to the fixed part. The first driving component is used for driving the movable part to move relative to the fixed part. The movable part is movably connected with the fixed part through the middle module. Thus, the size of the optical system can be reduced, and miniaturization can be achieved.

The special relative position and size relationship of the elements disclosed by the utility model not only can enable the optical system to achieve ultra-thinning in a specific direction and overall miniaturization, but also enables the system to further improve the optical quality (such as shooting quality or depth sensing precision) by matching with different optical modules, and further achieves a multiple anti-shake system by utilizing each optical module so as to greatly improve the anti-shake effect.

Although the embodiments of the present invention and their advantages have been disclosed, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the utility model. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification, but it is to be understood that any process, machine, manufacture, composition of matter, means, method and steps, presently existing or later to be developed, that will become apparent to those skilled in the art from this disclosure, may be utilized according to the present invention, and that all the same functions or advantages of the disclosed embodiments may be accomplished by the present invention. Accordingly, the scope of the present application includes the processes, machines, manufacture, compositions of matter, means, methods, and steps described in the specification. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present invention also includes combinations of the respective claims and embodiments.

Claims (10)

1. An optical system for being disposed in an electronic device, the optical system comprising:

a movable part for connecting an optical module;

the fixed part is fixedly connected with the electronic device, and the movable part can move relative to the fixed part;

the first driving component is used for driving the movable part to move relative to the fixed part; and

the movable part is movably connected with the fixed part through the middle module.

2. The optical system of claim 1, wherein the middle module comprises a first elastic element, the movable portion is movably connected to the fixed portion via the first elastic element;

the first elastic element comprises a first end and a second end;

the first elastic element is provided with a strip-shaped structure and extends along the direction of a main shaft;

the first elastic element is made of metal material.

3. The optical system of claim 2, wherein the fixed portion comprises:

a first setting part, the first end of the first elastic element is positioned at the first setting part;

a second setting part, the second end of the first elastic element is positioned at the second setting part;

a frame;

a top cover;

a bottom cover; and

a first avoiding portion for accommodating at least a portion of the first elastic element;

wherein the frame is at least partially positioned between the top cover and the bottom cover when viewed along a direction perpendicular to the major axis.

4. The optical system of claim 3, wherein:

the first setting part is provided with a sunken structure and is formed between the frame and the top cover;

the top cover has a plate-shaped structure and is vertical to the main shaft;

the second setting part has a concave structure or a perforated structure and is formed on the bottom cover;

the first avoidance portion has a tapered structure.

5. The optical system of claim 4, wherein the movable portion comprises a second avoidance portion for receiving at least a portion of the first resilient element;

the second avoidance part is provided with a tapered structure, and the tapered structure of the second avoidance part and the tapered structure of the first avoidance part are tapered towards different directions;

the first elastic element passes through the first avoidance part and the second avoidance part;

the optical system also comprises a first damping element which is directly arranged on the first elastic element and is used for inhibiting the abnormal movement of the movable part relative to the fixed part.

6. The optical system of claim 5, wherein:

the first damping element is made of resin;

the first damping element directly contacts the fixed part or the movable part;

the first damping element directly contacts the first avoidance portion or the second avoidance portion.

7. The optical system of claim 6, wherein:

the first damping element directly contacts the fixed part and the movable part;

the first damping element directly contacts the first avoidance part and the second avoidance part;

the tapered structure of the first avoidance part and the tapered structure of the second avoidance part have opposite tapered directions.

8. The optical system of claim 7, wherein:

the movable part comprises a bearing seat used for connecting a first optical element;

the first optical element comprises a first lens;

the bearing seat can move relative to the fixed part;

the bearing seat can move relative to a photosensitive element of the optical module;

the photosensitive element is used for receiving a light and outputting an image signal.

9. The optical system of claim 8, further comprising:

the second driving component is used for driving the bearing seat to move relative to the fixed part;

the bearing seat is movably connected with the fixed part through the second elastic element; and

a third elastic element, the bearing seat is movably connected with the fixed part through the third elastic element.

10. The optical system of claim 9, wherein:

the second elastic element has a plate-shaped structure;

the second elastic element is vertical to the main shaft;

the third elastic element has a plate-shaped structure;

the third elastic element is perpendicular to the main shaft.

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