Camera module and electronic device using reflective element
By introducing reflective elements and guide rod structures into the camera module, the problems of miniaturization and high imaging quality of traditional optical lenses are solved, and the effects of automatic focus and image stabilization are achieved, meeting the high specification needs of electronic devices.
Patent Information
- Application Number
- CN202510783479.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2020-09-16
- Filing Date
- 2020-10-21
- Publication Date
- 2025-08-12
AI Technical Summary
Traditional optical lenses are difficult to meet the needs of miniaturization and high imaging quality at the same time, especially the telephoto telescope lens is too large and the imaging quality is insufficient, which cannot meet the high specification needs of electronic devices.
The reflective element and guide rod structure design is adopted, including longitudinal guide rod, transverse guide rod and rotary shaft guide rod. Automatic focus and image stability are achieved through the movement of the lens module and the rotation of the reflective element, simplifying the optical lens structure.
The camera module is miniaturized and high imaging quality is achieved, the lens structure is balanced, and the automatic focus and image stabilization effect is achieved through the guide rod design.
Smart Images
Figure CN120469142A_ABST
Abstract
Description
[0001] This application is a divisional application. The application date of the original application is October 21, 2020; the application number is 202011130840.1; the name of the invention is: Camera module and electronic device using reflective elements. Technical Field
[0002] The present invention relates to a camera module and an electronic device, and in particular to a camera module using a reflective element suitable for the electronic device. Background Art
[0003] As semiconductor processing technology continues to improve, the performance of electronic photosensitive components has increased, allowing pixels to achieve smaller sizes. Therefore, optical lenses with high imaging quality have become indispensable. Furthermore, with the rapid advancement of technology, the application range of mobile devices equipped with optical lenses has become wider, and the requirements for optical lenses have also become more diverse.
[0004] In recent years, electronic products have been moving towards becoming thinner and lighter. However, traditional optical lenses have struggled to simultaneously meet the demands for miniaturization and high image quality, especially for telephoto lenses with long focal lengths. Known telephoto lenses suffer from being too long, having poor image quality, or being too bulky, making them unable to meet current market demands. Therefore, optical lenses can be configured with an optical axis deflection feature to reduce their dimensions in a single direction, thereby reducing their overall size. Furthermore, optical lenses can be equipped with anti-vibration features to ensure excellent image quality when capturing images. However, meeting these demands requires configuring a complex drive unit within the optical axis deflection element, which complicates the overall structure of the optical lens and increases its weight.
[0005] Therefore, how to improve optical lenses to simplify their structure, reduce their size, and maintain good imaging quality to meet the current high-standard requirements of electronic devices has become an important issue in related fields. Summary of the Invention
[0006] In view of the above-mentioned problems, the present invention discloses a camera module and an electronic device using a reflective element, which helps to simplify the structure of the optical lens, reduce the volume, and at the same time maintain good imaging quality.
[0007] The present invention provides a camera module comprising a base, a lens module, a reflector module, a longitudinal guide rod, a transverse guide rod, a rotating shaft guide rod, and a translatable bracket. The lens module has an optical axis and is disposed on the base. The reflector module is disposed on the object side of the lens module and includes a reflector element carrier and a reflector element, wherein the reflector element is disposed on the reflector element carrier. The longitudinal guide rod is disposed between the base and the lens module and extends in a first direction parallel to the optical axis. The transverse guide rod is disposed between the base and the lens module and extends in a second direction perpendicular to the optical axis. The rotating shaft guide rod is parallel to the transverse guide rod, and the reflector element is rotatable about the rotating shaft guide rod. The translatable bracket is disposed between the longitudinal guide rod and the transverse guide rod and is movable along either the longitudinal guide rod or the transverse guide rod. The lens module is movable along both the longitudinal guide rod and the transverse guide rod. The reflector element carrier has a rotating shaft surface for abutting a reflective surface of the reflector element, and the rotating shaft surface is located between the reflective surface and the rotating shaft guide rod.
[0008] The present invention further provides a camera module comprising a base, a lens module, a reflector module, a longitudinal guide rod, a transverse guide rod, a rotation axis guide rod, and a translatable bracket. The lens module has an optical axis and is disposed on the base. The reflector module is disposed on the object side of the lens module and includes a reflector element carrier and a reflector element, wherein the reflector element is disposed on the reflector element carrier. The longitudinal guide rod is disposed between the base and the lens module and extends in a first direction parallel to the optical axis. The transverse guide rod is disposed between the base and the lens module and extends in a second direction perpendicular to the optical axis. The rotation axis guide rod is parallel to the transverse guide rod, and the reflector module is disposed on the rotation axis guide rod. The translatable bracket is disposed between the longitudinal guide rod and the transverse guide rod and is movable along one of the longitudinal guide rod and the transverse guide rod. The lens module is movable along both the longitudinal guide rod and the transverse guide rod. The reflector element carrier has a rotation axis surface for a reflective surface of the reflective element to abut, and the rotation axis surface is located between the reflective surface and the rotation axis guide rod.
[0009] The present invention provides an electronic device including the aforementioned camera module.
[0010] The camera module and electronic device using a reflective element disclosed in the present invention utilize a guide rod design to enable the camera module to achieve autofocus and image stabilization. Furthermore, the spatial arrangement of the guide rods maintains the balance of the camera module and achieves miniaturization.
[0011] The above description of the disclosed contents and the following description of the embodiments are intended to demonstrate and explain the spirit and principles of the present invention, and to provide further explanation of the scope of protection of the claims of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 FIG. 1 is a perspective diagram of a camera module according to a first embodiment of the present invention.
[0013] Figure 2 Draw Figure 1 An exploded diagram of the camera module.
[0014] Figure 3 Draw Figure 1 Exploded diagram of the other side of the camera module.
[0015] Figure 4 Draw Figure 2 A three-dimensional schematic diagram of one of the first buffer elastic members.
[0016] Figure 5 Draw Figure 2 A three-dimensional schematic diagram of one of the second buffer elastic members.
[0017] Figure 6 Draw Figure 1 Schematic cross-sectional view of the camera module along the 6-6' section line.
[0018] Figure 7 Draw Figure 1 A schematic cross-sectional view of the camera module along the 7-7' section line.
[0019] Figure 8 FIG. 1 is a perspective diagram of a camera module according to a second embodiment of the present invention.
[0020] Figure 9 Draw Figure 8 An exploded diagram of the camera module.
[0021] Figure 10 Draw Figure 8 Exploded diagram of the other side of the camera module.
[0022] Figure 11 Draw Figure 9 A three-dimensional schematic diagram of one of the first buffer elastic members.
[0023] Figure 12 Draw Figure 8 A schematic cross-sectional view of the camera module along the 12-12' section line.
[0024] Figure 13 Draw Figure 8 A schematic cross-sectional view of the camera module along the cross-sectional line 13-13'.
[0025] Figure 14 FIG. 1 is a schematic cross-sectional view of a camera module according to a third embodiment of the present invention.
[0026] Figure 15FIG. 4 is another cross-sectional schematic diagram of a camera module according to the third embodiment of the present invention.
[0027] Figure 16 A schematic three-dimensional diagram of one side of an electronic device according to a fourth embodiment of the present invention is shown.
[0028] Figure 17 Draw Figure 16 A three-dimensional schematic diagram of the other side of the electronic device.
[0029] Figure 18 A schematic diagram illustrating image capture using an ultra-wide-angle camera module.
[0030] Figure 19 A schematic diagram illustrating image capture using a high-pixel camera module.
[0031] Figure 20 A schematic diagram illustrating image capture using a telephoto camera module is shown.
[0032] Figure 21 A schematic three-dimensional diagram of one side of an electronic device according to a fifth embodiment of the present invention is shown.
[0033]
Explanation of symbols
[0034] 4, 5…electronic devices;
[0035] 40a…Ultra-wide-angle camera module;
[0036] 40b...high-pixel camera module;
[0037] 40c…telephoto camera module;
[0038] 41, 51…Flash module;
[0039] 42…focus assist module;
[0040] 43…Image signal processor;
[0041] 44…display panel;
[0042] 10, 20, 30, 50a, 50b, 50c, 50d, 50e, 50f, 50g, 50h… camera module;
[0043] 111, 211… shell;
[0044] 1110, 2110…open;
[0045] 112, 212, 312…base;
[0046] 1120, 2120…opening;
[0047] 1121, 2121… groove;
[0048] 2122…Second chute;
[0049] 113, 213…circuit boards;
[0050] 120, 220, 320... lens modules;
[0051] 121, 221… lens carrier;
[0052] 1210…Second chute;
[0053] 122, 222… lens elements;
[0054] 131, 231, 331…longitudinal guide rods;
[0055] 132, 232, 332… transverse guide rods;
[0056] 133, 233…rotating shaft guide rod;
[0057] 140, 240...Translation bracket;
[0058] 141, 241…first chute;
[0059] 150, 250…reflection module;
[0060] 151, 251, 351…reflective element carrier;
[0061] 1510, 2510…rotating axis surface;
[0062] 152, 252, 352…reflective elements;
[0063] 1520, 2520…reflective surface;
[0064] 161, 261… first driving mechanism;
[0065] 1611, 2611, 3611…first driving magnet;
[0066] 1612, 2612…first driving coil;
[0067] 162, 262… second driving mechanism;
[0068] 1621, 2621, 3621…second driving magnet;
[0069] 1622, 2622…second driving coil;
[0070] 163, 263…rotation drive mechanism;
[0071] 1631, 2631…rotating drive magnet;
[0072] 1632, 2632…rotating drive coil;
[0073] 171, 271 ... first elastic buffer member;
[0074] 1711, 2711…fixed part;
[0075] 1712, 2712…buffer contact portion;
[0076] 1713, 2713…buffer elastic portion;
[0077] 172, 272 ... a second elastic buffer member;
[0078] 1721, 2721…fixed part;
[0079] 1722, 2722…buffer contact portion;
[0080] 1723, 2723…buffer elastic portion;
[0081] 180, 280… preload element;
[0082] 190, 290…damping;
[0083] 295, 395… ferromagnetic components;
[0084] 399…object side lens element;
[0085] SP…accommodation space;
[0086] OA…Optical axis;
[0087] D1…first direction;
[0088] D2…first direction;
[0089] D3…first direction;
[0090] FOV…the maximum viewing angle of the lens module;
[0091] L1…length of the longitudinal guide rod;
[0092] L2…The length of the transverse guide rod. DETAILED DESCRIPTION
[0093] The following detailed description of the features and advantages of the present invention is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly. Based on the disclosure of this specification, the scope of the claims, and the accompanying drawings, any person skilled in the art can easily understand the relevant objects and advantages of the present invention. The following examples further illustrate the concepts of the present invention in detail but are not intended to limit the scope of the present invention in any way.
[0094] The present invention provides a camera module using a reflective element, which includes a base, a lens module and a reflective module. The camera module using the reflective element also includes at least two of a longitudinal guide rod, a transverse guide rod and a rotating shaft guide rod.
[0095] The lens module has an optical axis, and the lens module is arranged on the base. The reflective module includes a reflective element for deflecting the optical path of the incident light, the reflective element is arranged on the base, and the reflective element is located on the object side of the lens module. The base may include a plurality of sub-bases, but the present invention is not limited thereto. The lens module may include a lens carrier and at least one lens element, and the lens element is arranged on the lens carrier. The reflective module may further include a reflective element carrier for the reflective element to be arranged, and the reflective element carrier is arranged on the base. The reflective element may be a prism or a reflector, but the present invention is not limited thereto.
[0096] A longitudinal guide rod is disposed between the base and the lens module, extending in a first direction parallel to the optical axis. A transverse guide rod is disposed between the base and the lens module, extending in a second direction perpendicular to the optical axis. A rotational axis guide rod is disposed between the base and the reflector module, extending in a second direction. The lens module is movable along the longitudinal guide rod, i.e., guided by the longitudinal guide rod in a first direction; and along the transverse guide rod, i.e., guided by the transverse guide rod in a second direction. Movement of the lens module along the longitudinal guide rod and along the transverse guide rod, respectively, achieves image focusing and image stabilization in one dimension. The reflective element of the reflector module rotates about the rotational axis guide rod, thereby achieving image stabilization in another dimension. The longitudinal guide rod and the transverse guide rod can be cylindrical, and the rotational axis guide rod can also be cylindrical. This reduces frictional resistance at the sliding contact surface between the individual elements and the guide rods, thereby improving smoothness during operation. The perpendicularity mentioned in the present invention may refer to the angle between two elements (such as line and line, plane and plane, or line and plane) being 90 degrees or close to 90 degrees, and the parallelism mentioned in the present invention may refer to the angle between two elements (such as line and line, plane and plane, or line and plane) being 180 degrees or close to 180 degrees.
[0097] The present invention discloses a camera module using a reflective element. The guide rod design enables the camera module to achieve autofocus and image stabilization. In addition, the spatial arrangement of the guide rod maintains the balance of the camera module and achieves miniaturization.
[0098] The camera module disclosed herein may further include at least one object-side lens element, located on the object side of the reflective element and adjacent to the reflective element along a third direction perpendicular to both the first direction and the second direction. This allows the reflective element to be positioned between the two lens groups in the optical path, allowing for more flexible use of the camera module's space and meeting more stringent specifications.
[0099] The camera module disclosed herein may further include a translatable bracket, wherein the translatable bracket is disposed between the longitudinal guide rod and the transverse guide rod and is movable along one of the longitudinal guide rod and the transverse guide rod. That is, the translatable bracket can be guided by the longitudinal guide rod in a first direction or by the transverse guide rod in a second direction. This helps improve the translational stability of the lens module in both the first and second directions.
[0100] In the camera module disclosed herein, the longitudinal guide rods and the transverse guide rods may be secured to one of the base, the translatable bracket, and the lens carrier via adhesive, while the rotational guide rods may be secured to one of the base and the reflective element carrier via adhesive, but the present invention is not limited thereto. For example, in one embodiment, the guide rods are secured to one of the base, the translatable bracket, the lens carrier, and the reflective element carrier via insert molding.
[0101] The camera module disclosed in the present invention may further include at least one buffer elastic member, wherein the buffer elastic member includes a fixed portion, a buffer contact portion and a buffer elastic portion, the fixed portion is fixed to one of the base and the lens module, the buffer contact portion corresponds to the other of the base and the lens module, and the buffer elastic portion connects the fixed portion and the buffer contact portion. In this way, it helps to reduce the wear and tear of the lens module caused by impact, thereby protecting the guide rod so that the guide rod is not easily loosened. The buffer elastic member can be used to limit the movable range of the lens module, and when the lens module moves along the longitudinal guide rod or the transverse guide rod, the buffer elastic member can prevent the lens module from strongly colliding with the base. The above-mentioned arrangement of the fixed portion and the buffer contact portion is not intended to limit the present invention. In some embodiments, the fixed portion of at least one buffer elastic member of the camera module is fixed to one of the translatable bracket and the lens module, and the buffer contact portion corresponds to the other of the translatable bracket and the lens module.
[0102] The camera module disclosed herein may further include a first driving mechanism, wherein the first driving mechanism includes a first driving magnet and a first driving coil. The first driving magnet is disposed on the lens module, and the first driving coil corresponds to the first driving magnet. The first driving mechanism is configured to drive the lens module to move in a first direction. This provides a driving force for the lens module to move in the first direction.
[0103] The camera module disclosed in the present invention may further include a second driving mechanism, where the second driving mechanism includes a second driving magnet and a second driving coil. The second driving magnet is disposed on the lens module, the second driving coil corresponds to the second driving magnet, and the second driving mechanism is used to drive the lens module to move along a second direction. Thereby, a driving force for the lens module to move along the second direction can be provided.
[0104] The camera module disclosed in the present invention may further include a ferromagnetic element, where the ferromagnetic element is disposed on the base, and the ferromagnetic element corresponds to one of the first driving magnet and the second driving magnet, and is jointly used to provide an attractive force for the lens module to exert a force towards the base, so that the longitudinal guide rod and the transverse guide rod support the lens module. Thereby, higher assembly convenience can be provided, and the assembly efficiency can be further improved.
[0105] One of the longitudinal guide rod and the transverse guide rod may be made of a ferromagnetic material, and the longitudinal guide rod or the transverse guide rod that may be made of a ferromagnetic material may be fixed to the base and correspond to one of the first driving magnet and the second driving magnet, and are jointly used to provide an attractive force for the lens module to exert a force towards the base, so that the longitudinal guide rod and the transverse guide rod support the lens module. Thereby, by directly attracting the guide rod by the driving magnet, the driving direction can be made more consistent, and the lens module can be prevented from being skewed.
[0106] The camera module disclosed in the present invention may further include a rotational driving mechanism, where the rotational driving mechanism includes a rotational driving magnet and a rotational driving coil. The rotational driving magnet is disposed on the reflection module, the rotational driving coil corresponds to the rotational driving magnet, and the rotational driving mechanism is used to drive the reflection module to rotate about the rotation axis guide rod. Thereby, a driving force for the reflection module to rotate about the rotation axis guide rod can be provided.
[0107] The camera module disclosed in the present invention may further include a preloading element, where the preloading element is connected to the reflection module, and the preloading element is used to provide a preloading force for the reflection module to exert a force towards the rotation axis guide rod. Thereby, a preloading method with a relatively strong structure is adopted, so that the guide rod is less likely to be damaged. Among them, the preloading element may be, for example, a spring piece.
[0108] The preloading element disclosed in the present invention may be further connected to the base. The camera module may further include a damper, and the damper is disposed between the preloading element and the base and is used to eliminate the oscillation of the reflection module. Thereby, it helps to improve the image stability of the lens module to avoid image shaking.
[0109] The maximum viewing angle of the lens module is FOV, which may satisfy the following condition: 3 degrees < FOV < 40 degrees. Thereby, a telephoto camera module with a small viewing angle can be provided.
[0110] The length of the longitudinal guide rod is L1, and the length of the transverse guide rod is L2, which can meet the following conditions: 0.1 < L2 / L1 < 2.0. Thereby, in a small-volume space, a guide rod length ratio configuration that can maintain a sufficient driving distance can be achieved. Please refer to Figure 6 and Figure 7 , which are schematic diagrams respectively showing the parameters L1 and L2 in the first embodiment of the present invention.
[0111] Each technical feature in the camera module using a reflection element in the above-mentioned present invention can be combined and configured to achieve the corresponding effects.
[0112] According to the above implementation manners, specific embodiments are proposed below and will be described in detail with reference to the accompanying drawings.
[0113] <First Embodiment>
[0114] Please refer to Figures 1 to 7 , in which Figure 1 is a three-dimensional schematic diagram of a camera module according to the first embodiment of the present invention, Figure 2 shows Figure 1 a disassembled schematic diagram of the camera module, Figure 3 shows Figure 1 a disassembled schematic diagram of the other side of the camera module, Figure 4 shows Figure 2 a three-dimensional schematic diagram of one of the first buffer elastic members in Figure 5 shows Figure 2 a three-dimensional schematic diagram of one of the second buffer elastic members in Figure 6 shows Figure 1 a sectional schematic diagram of the camera module along the 6-6' cutting line, and Figure 7 shows Figure 1 a sectional schematic diagram of the camera module along the 7-7' cutting line.
[0115] The camera module 10 includes a housing 111, a base 112, a lens module 120, two longitudinal guide rods 131, a translatable bracket 140, two transverse guide rods 132, a reflection module 150, a rotating shaft guide rod 133, a circuit board 113, a first driving mechanism 161, a second driving mechanism 162, a rotation driving mechanism 163, two first buffer elastic members 171, two second buffer elastic members 172, a preloading element 180, and a damper 190.
[0116] The housing 111 is assembled to the base 112 and jointly forms an accommodation space SP with the base 112. The housing 111 has an opening 1110 for light to enter, and the base 112 has an opening 1120 for light to exit.
[0117] The lens module 120 has an optical axis OA and includes a lens carrier 121 and at least one lens element 122 . The lens carrier 121 is located in the accommodation space SP and movably disposed on the base 112 , and the lens element 122 is disposed on the lens carrier 121 .
[0118] The longitudinal guide rod 131 is disposed between the base 112 and the lens module 120 and fixed to the base 112 , and extends along a first direction D1 parallel to the optical axis OA.
[0119] The translatable bracket 140 is disposed between the longitudinal guide rod 131 and the lens module 120. The translatable bracket 140 has two first sliding grooves 141 extending along the first direction D1. The first sliding grooves 141 correspond to the longitudinal guide rods 131, respectively. The longitudinal guide rods 131 are slidably positioned in the first sliding grooves 141, thereby allowing the translatable bracket 140 to be slidably disposed on the base 112 and movable along the longitudinal guide rods 131. The translatable bracket 140 can be guided along the first direction D1 by the longitudinal guide rods 131.
[0120] A transverse guide rod 132 is disposed between the translatable support 140 and the lens module 120 and is fixed to the translatable support 140. The transverse guide rod 132 extends along a second direction D2 perpendicular to the optical axis OA. The lens carrier 121 of the lens module 120 has two second guide slots 1210 extending along the second direction D2. The second guide slots 1210 correspond to the transverse guide rods 132, respectively. The transverse guide rods 132 are slidably positioned within the second guide slots 1210, thereby allowing the lens module 120 to be slidably disposed on the translatable support 140 and move along the transverse guide rods 132. The lens module 120 can be guided along the second direction D2 by the transverse guide rods 132. Furthermore, when the translatable bracket 140 moves along the longitudinal guide rod 131, the translatable bracket 140 also drives the lens module 120 to move along the longitudinal guide rod 131, so that the lens module 120 can move along the longitudinal guide rod 131 and along the transverse guide rod 132, thereby achieving the image focusing effect and one-dimensional image stabilization respectively.
[0121] The reflective module 150 includes a reflective element carrier 151 and a reflective element 152. The reflective element carrier 151 is disposed on the base 112. The reflective element 152 is a prism for redirecting the optical path of incident light. The reflective element 152 is disposed on the reflective element carrier 151 and is located on the object side of the lens module 120.
[0122] The rotating shaft guide rod 133 is disposed between the base 112 and the reflective module 150 and fixed to the reflective element carrier 151. The rotating shaft guide rod 133 extends along the second direction D2. The base 112 has a groove 1121 extending along the second direction D2. The groove 1121 corresponds to the rotating shaft guide rod 133, so that the rotating shaft guide rod 133 is rotatably located in the groove 1121. As a result, the reflective element 152 is rotatably disposed on the base 112 and rotates around the rotating shaft guide rod 133 as the central axis, thereby achieving another dimension of image stabilization. Figure 2 、 Figure 3 and Figure 6 As shown, the reflective element carrier 151 has a rotation axis surface 1510 for a reflective surface 1520 of the reflective element 152 to abut against, and the rotation axis guide rod 133 is located between the rotation axis surface 1510 and the base 112 .
[0123] The circuit board 113 is disposed on the base 112 to provide driving current to the driving coil.
[0124] The first driving mechanism 161 includes a first driving magnet 1611 and a first driving coil 1612. The first driving magnet 1611 is disposed on the lens module 120, and the first driving coil 1612 is disposed on the circuit board 113 and corresponds to the first driving magnet 1611. The circuit board 113 can provide a driving current to the first driving coil 1612, generating an electromagnetic force between the first driving magnet 1611 and the first driving coil 1612 to drive the first driving magnet 1611 to move in the first direction D1, thereby driving the lens module 120 to move in the first direction D1.
[0125] The second driving mechanism 162 includes two second driving magnets 1621 and two second driving coils 1622. The second driving magnets 1621 are disposed on opposite sides of the lens module 120 and adjacent to the first driving magnet 1611. The second driving coils 1622 are disposed on opposite sides of the circuit board 113 and adjacent to the first driving coil 1612, with each second driving coil 1622 corresponding to the second driving magnets 1621. The circuit board 113 can provide a driving current to the second driving coils 1622, generating an electromagnetic force between the second driving magnets 1621 and the second driving coils 1622 to drive the second driving magnets 1621 to move in the second direction D2, thereby driving the lens module 120 to move in the second direction D2.
[0126] The rotational drive mechanism 163 includes a rotational drive magnet 1631 and a rotational drive coil 1632. The rotational drive magnet 1631 is disposed on the reflective element carrier 151 of the reflective module 150 and is located on one side of the rotating shaft guide rod 133. The rotational drive coil 1632 is disposed on the circuit board 113 and corresponds to the rotational drive magnet 1631. The circuit board 113 provides a driving current to the rotational drive coil 1632, generating an electromagnetic force between the rotational drive magnet 1631 and the rotational drive coil 1632 to drive the rotational drive magnet 1631 to rotate about the rotating shaft guide rod 133, thereby driving the reflective module 150 to rotate about the rotating shaft guide rod 133. In this embodiment, the first drive mechanism 161 is driven to cause the coil and magnet to move substantially horizontally relative to each other; the second drive mechanism 162 and the rotational drive mechanism 163 are both driven to cause the coil and magnet to move substantially perpendicularly relative to each other.
[0127] Each of the first elastic buffer members 171 includes two fixed portions 1711, a buffer contact portion 1712, and two elastic buffer portions 1713 connecting the fixed portions 1711 and the buffer contact portions 1712. The fixed portions 1711 are fixed to the base 112, and the buffer contact portions 1712 correspond to the lens module 120. The first elastic buffer members 171 are used to limit the range of movement of the lens module 120 in the first direction D1. When the lens module 120 moves along the longitudinal guide rod 131, the first elastic buffer member 171 can stop the lens module 120 through the buffer contact portions 1712 to prevent the lens module 120 from strongly colliding with the base 112.
[0128] Each second elastic buffer member 172 includes a fixed portion 1721, two buffer contact portions 1722, and two elastic buffer portions 1723 connecting the fixed portion 1721 and the buffer contact portions 1722. The fixed portion 1721 is fixed to the lens module 120, and the buffer contact portions 1722 correspond to the translatable bracket 140. The second elastic buffer member 172 is used to limit the range of movement of the lens module 120 in the second direction D2. When the lens module 120 moves along the transverse guide rod 132, the second elastic buffer member 172 can stop the lens module 120 through the buffer contact portions 1722 to prevent the lens module 120 from strongly colliding with the base 112.
[0129] The preload element 180 is a spring sheet located between the base 112 and the reflective module 150 and connects the base 112 and the reflective element carrier 151 of the reflective module 150. The preload element 180 is used to apply a preload force to the reflective element carrier 151 toward the base 112, so that the shaft guide rod 133 supports the reflective module 150.
[0130] A damper 190 is disposed between the preload element 180 and the base 112 to eliminate the oscillation of the reflection module 150.
[0131] In this embodiment, the longitudinal guide rod 131 is made of a ferromagnetic material, and the longitudinal guide rod 131 corresponds to the second driving magnet 1621, and they are jointly used to provide an attractive force for the lens module 120 to apply a force toward the base 112, so that the longitudinal guide rod 131 and the transverse guide rod 132 support the lens module 120.
[0132] In this embodiment, the longitudinal guide rod 131, the transverse guide rod 132, and the rotating shaft guide rod 133 are all cylinders.
[0133] The maximum viewing angle of the lens module 120 is FOV, which satisfies the following condition: 3 degrees < FOV < 40 degrees.
[0134] The length of the longitudinal guide rod 131 is L1, and the length of the transverse guide rod 132 is L2, which satisfy the following conditions: L1 = 7 mm; L2 = 3.7 mm; and L2 / L1 = 0.53.
[0135] The camera module 10 of this embodiment takes the example of having the longitudinal guide rod 131, the transverse guide rod 132, and the rotating shaft guide rod 133, so as to enable the lens module 120 to move along the first direction D1 and the second direction D2 respectively, and enable the reflecting element 152 of the reflection module 150 to rotate around the rotating shaft guide rod 133 as the central axis, but the present invention is not limited thereto. In other embodiments, the camera module can be designed to have only two of the longitudinal guide rod, the transverse guide rod, and the rotating shaft guide rod according to the actual image focusing requirements and the requirements of specific-dimensional image stabilization.
[0136] <Second Embodiment>
[0137] Please refer to Figures 8 to 13 , in which Figure 8 is a three-dimensional schematic diagram of a camera module according to the second embodiment of the present invention, Figure 9 shows Figure 8 a disassembled schematic diagram of the camera module, Figure 10 shows Figure 8 a disassembled schematic diagram of the other side of the camera module, Figure 11 shows Figure 9 a three-dimensional schematic diagram of one of the first buffer elastic members, Figure 12 shows Figure 8 a sectional view of the camera module along the 12-12' cutting line, and Figure 13 shows Figure 8 a sectional view of the camera module along the 13-13' cutting line.
[0138] The camera module 20 includes a housing 211, a base 212, a lens module 220, two longitudinal guide rods 231, a translatable bracket 240, two transverse guide rods 232, a reflection module 250, a rotation axis guide rod 233, a circuit board 213, a first driving mechanism 261, a second driving mechanism 262, a rotation driving mechanism 263, two first buffer elastic members 271, two second buffer elastic members 272, a preload element 280, a damper 290 and a ferromagnetic element 295.
[0139] The housing 211 is assembled to the base 212 and forms a receiving space SP together with the base 212 . The housing 211 has an opening 2110 for light to enter, and the base 212 has an opening 2120 for light to exit.
[0140] The lens module 220 has an optical axis OA and includes a lens carrier 221 and at least one lens element 222 . The lens carrier 221 is located in the accommodation space SP and movably disposed on the base 212 , and the lens element 222 is disposed on the lens carrier 221 .
[0141] The longitudinal guide rod 231 is disposed between the base 212 and the lens module 220 and fixed to the lens carrier 221 of the lens module 220 . The longitudinal guide rod 231 extends along a first direction D1 parallel to the optical axis OA.
[0142] The translatable bracket 240 is disposed between the longitudinal guide rods 231 and the base 212. The translatable bracket 240 has two first sliding grooves 241 extending along the first direction D1. The first sliding grooves 241 correspond to the longitudinal guide rods 231, respectively. The longitudinal guide rods 231 are slidably located in the first sliding grooves 241, so that the lens module 220 is slidably disposed on the translatable bracket 240 and can move along the longitudinal guide rods 231. The lens module 220 can be guided by the longitudinal guide rods 231 to move along the first direction D1.
[0143] The transverse guide rod 232 is disposed between the translatable bracket 240 and the base 212 and is fixed to the translatable bracket 240. The transverse guide rod 232 extends along a second direction D2 perpendicular to the optical axis OA. The base 212 has two second guide slots 2122 extending along the second direction D2. The second guide slots 2122 correspond to the transverse guide rods 232, respectively. The transverse guide rods 232 are slidably positioned in the second guide slots 2122, thereby allowing the translatable bracket 240 to be slidably disposed on the base 212 and movable along the transverse guide rods 232. The translatable bracket 240 can be guided along the second direction D2 by the transverse guide rods 232. Furthermore, when the translatable bracket 240 moves along the transverse guide rod 232, the translatable bracket 240 also drives the lens module 220 to move along the transverse guide rod 232, so that the lens module 220 can move along the longitudinal guide rod 231 and along the transverse guide rod 232, thereby achieving the image focusing effect and one-dimensional image stabilization respectively.
[0144] The reflective module 250 includes a reflective element carrier 251 and a reflective element 252. The reflective element carrier 251 is disposed on the base 212. The reflective element 252 is a prism for deflecting the optical path of incident light. The reflective element 252 is disposed on the reflective element carrier 251 and is located on the object side of the lens module 220.
[0145] The rotating shaft guide rod 233 is disposed between the base 212 and the reflective module 250 and fixed to the reflective element carrier 251. The rotating shaft guide rod 233 extends along the second direction D2. The base 212 has a groove 2121 extending along the second direction D2. The groove 2121 corresponds to the rotating shaft guide rod 233, so that the rotating shaft guide rod 233 is rotatably located in the groove 2121. As a result, the reflective element 252 is rotatably disposed on the base 212 and rotates around the rotating shaft guide rod 233 as the central axis, thereby achieving another dimension of image stabilization. Figure 9 、 Figure 10 and Figure 12 As shown, the reflective element carrier 251 has a rotation axis surface 2510 for a reflective surface 2520 of the reflective element 252 to abut against, and the rotation axis guide rod 233 is located between the rotation axis surface 2510 and the base 212 .
[0146] The circuit board 213 is disposed on the base 212 to provide driving current to the driving coil.
[0147] The first driving mechanism 261 includes a first driving magnet 2611 and a first driving coil 2612. The first driving magnet 2611 is disposed on the lens module 220, and the first driving coil 2612 is disposed on the circuit board 213 and corresponds to the first driving magnet 2611. The circuit board 213 can provide a driving current to the first driving coil 2612, generating an electromagnetic force between the first driving magnet 2611 and the first driving coil 2612 to drive the first driving magnet 2611 to move in the first direction D1, thereby driving the lens module 220 to move in the first direction D1.
[0148] The second driving mechanism 262 includes two second driving magnets 2621 and two second driving coils 2622. The second driving magnets 2621 are disposed on opposite sides of the lens module 220 and adjacent to the first driving magnet 2611. The second driving coils 2622 are disposed on opposite sides of the circuit board 213 and adjacent to the first driving coil 2612, with each second driving coil 2622 corresponding to the second driving magnets 2621. The circuit board 213 can provide a driving current to the second driving coils 2622, generating an electromagnetic force between the second driving magnets 2621 and the second driving coils 2622 to drive the second driving magnets 2621 to move in the second direction D2, thereby driving the lens module 220 to move in the second direction D2.
[0149] The rotational drive mechanism 263 includes a rotational drive magnet 2631 and a rotational drive coil 2632. The rotational drive magnet 2631 is disposed on the reflective element carrier 251 of the reflective module 250 and is located on one side of the rotating shaft guide rod 233. The rotational drive coil 2632 is disposed on the circuit board 213 and corresponds to the rotational drive magnet 2631. The circuit board 213 provides a driving current to the rotational drive coil 2632, generating an electromagnetic force between the rotational drive magnet 2631 and the rotational drive coil 2632 to drive the rotational drive magnet 2631 to rotate about the rotating shaft guide rod 233, thereby driving the reflective module 250 to rotate about the rotating shaft guide rod 233. In this embodiment, the first drive mechanism 261 is driven to produce a substantially horizontal displacement between the coil and the magnet; the second drive mechanism 262 and the rotational drive mechanism 263 are both driven to produce a substantially perpendicular displacement between the coil and the magnet.
[0150] Each of the first buffer elastic members 271 includes two fixing portions 2711, two buffer contact portions 2712, and four buffer elastic portions 2713 connecting the fixing portions 2711 and the buffer contact portions 2712. The fixing portions 2711 are fixed to the base 212, and the buffer contact portions 2712 correspond to the lens module 220. The first buffer elastic members 271 are used to limit the range of movement of the lens module 220 in the first direction D1. When the lens module 220 moves along the longitudinal guide rod 231, the first buffer elastic members 271 can stop the lens module 220 through the buffer contact portions 2712 to prevent the lens module 220 from strongly impacting the base 212.
[0151] Each of the second buffer elastic members 272 includes a fixing portion 2721, two buffer contact portions 2722, and two buffer elastic portions 2723 connecting the fixing portion 2721 and the buffer contact portions 2722. The fixing portion 2721 is fixed to the lens module 220, and the buffer contact portions 2722 correspond to the translatable bracket 240. The second buffer elastic members 272 are used to limit the range of movement of the lens module 220 in the second direction D2. When the lens module 220 moves along the transverse guide rod 232, the second buffer elastic members 272 can stop the lens module 220 through the buffer contact portions 2722 to prevent the lens module 220 from strongly impacting the base 212.
[0152] The preloading element 280 is a spring piece, which is located between the base 212 and the reflection module 250 and connects the reflection element carrier 251 of the base 212 and the reflection module 250. The preloading element 280 is used to provide a preloading force to the reflection element carrier 251 that applies a force towards the base 212, so that the rotating shaft guide rod 233 supports the reflection module 250.
[0153] The damper 290 is disposed between the preloading element 280 and the base 212, and is used to eliminate the oscillation of the reflection module 250.
[0154] The ferromagnetic element 295 is disposed on the base 212, and the ferromagnetic element 295 corresponds to the first driving magnet 2611, and is used together to provide an attractive force to the lens module 220 that applies a force towards the base 212, so that the longitudinal guide rod 231 and the transverse guide rod 232 support the lens module 220.
[0155] In this embodiment, the longitudinal guide rod 231, the transverse guide rod 232, and the rotating shaft guide rod 233 are all cylinders.
[0156] The maximum viewing angle of the lens module 220 is FOV, which satisfies the following condition: 3 degrees < FOV < 40 degrees.
[0157] The length of the longitudinal guide rod 231 is L1 , and the length of the transverse guide rod 232 is L2 , which satisfy the following conditions: L1 = 6.5 mm; L2 = 4.1 mm; and L2 / L1 = 0.63.
[0158] <Third embodiment>
[0159] Please refer to Figure 14 and Figure 15 ,in Figure 14 FIG2 is a cross-sectional view of a camera module according to a third embodiment of the present invention. Figure 15 FIG. 4 is another cross-sectional schematic diagram of a camera module according to the third embodiment of the present invention.
[0160] The structure of the camera module 30 of this embodiment is similar to that of the camera module 10 of the first embodiment, except for the differences described below.
[0161] In this embodiment, compared with the camera module 10 , the camera module 30 further includes a ferromagnetic element 395 and an object-side lens element 399 .
[0162] The ferromagnetic element 395 is disposed on the base 312 and corresponds to the first driving magnet 3611. Together, the ferromagnetic element 395 provides an attractive force to force the lens module 320 toward the base 312. Furthermore, the longitudinal guide rod 331 is made of a ferromagnetic material and corresponds to the second driving magnet 3621. Together, the longitudinal guide rod 331 and the second driving magnet 3621 provide an attractive force to force the lens module 320 toward the base 312. Thus, the ferromagnetic element 395, the first driving magnet 3611, the longitudinal guide rod 331, and the second driving magnet 3621 collectively provide an attractive force to force the lens module 320 toward the base 312, allowing the longitudinal guide rod 331 and the transverse guide rod 332 to support the lens module 320.
[0163] The object-side lens element 399 is located at the object side of the reflective element 352 and is disposed adjacent to the reflective element 352 along a third direction D3 , wherein the third direction D3 is perpendicular to the first direction D1 and perpendicular to the second direction D2 .
[0164] In this embodiment, the reflective element 352 is a reflector for redirecting the optical path of incident light. The reflective element 352 is disposed on the reflective element carrier 351 and is located on the object side of the lens module 320 .
[0165] The length of the longitudinal guide rod 331 is L1 , and the length of the transverse guide rod 332 is L2 , which satisfy the following conditions: L1 = 7 mm; L2 = 3.6 mm; and L2 / L1 = 0.51.
[0166] <Fourth embodiment>
[0167] Please refer to Figure 16 and Figure 17 ,in Figure 16 A schematic perspective view of one side of an electronic device according to a fourth embodiment of the present invention is shown, and Figure 17 Draw Figure 16 A three-dimensional schematic diagram of the other side of the electronic device.
[0168] In this embodiment, the electronic device 4 is a smart phone and includes a plurality of camera modules, a flash module 41 , a focus assist module 42 , an image signal processor 43 , a display panel (user interface) 44 , and an image software processor (not shown).
[0169] These camera modules include an ultra-wide-angle camera module 40a, a high-pixel camera module 40b, and a telephoto camera module 40c. The telephoto camera module 40c is the camera module 10 of the first embodiment, but the present invention is not limited thereto. The telephoto camera module 40c may also be, for example, the camera module of any of the other embodiments of the present invention described above.
[0170] The ultra-wide-angle camera module 40 a has a function of accommodating multiple views. Figure 18 FIG. 4 is a schematic diagram illustrating an image captured by the ultra-wide-angle camera module 40 a .
[0171] The high-pixel camera module 40b has high resolution and low distortion functions. The high-pixel camera module 40b can further capture Figure 18 Part of the image. Figure 19 FIG. 4 is a schematic diagram showing an image captured by a high-pixel camera module 40 b.
[0172] The telephoto camera module 40c has a high magnification function. The telephoto camera module 40c can further capture Figure 19 Part of the image. Figure 20 A schematic diagram of capturing an image with a telephoto camera module 40c is shown. The maximum viewing angle (FOV) of the camera module corresponds to Figure 20 perspective.
[0173] When a user photographs a subject, electronic device 4 utilizes ultra-wide-angle camera module 40a, high-pixel camera module 40b, or telephoto camera module 40c to focus light and capture the image. Flash module 41 is activated for fill light, and the subject's distance information provided by focus assist module 42 is used for rapid focusing. Image signal processor 43 then performs image optimization processing to further enhance the image quality produced by the camera modules while also providing a zoom function. Focus assist module 42 may utilize an infrared or laser focus assist system to achieve rapid focusing. Display panel 44 may utilize a touch screen or a physical capture button, in conjunction with the diverse functions of the image software processor for image capture and processing. Images processed by the image software processor are displayed on display panel 44.
[0174] <Fifth embodiment>
[0175] Please refer to Figure 21 , is a schematic three-dimensional diagram illustrating one side of an electronic device according to a fifth embodiment of the present invention.
[0176] In this embodiment, the electronic device 5 is a smartphone. The electronic device 5 includes the camera module 10, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h of the first embodiment, a flash module 51, an image signal processor, a display device, and an image software processor (not shown). The camera modules 10, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h are all located on the same side of the electronic device 5, while the display device is located on the other side of the electronic device 5.
[0177] Camera module 10 is a telephoto camera module, camera module 50a is a telephoto camera module, camera module 50b is a telephoto camera module, camera module 50c is a telephoto camera module, camera module 50d is a wide-angle camera module, camera module 50e is a wide-angle camera module, camera module 50f is an ultra-wide-angle camera module, camera module 50g is an ultra-wide-angle camera module, and camera module 50h is a time-of-flight (ToF) camera module. In this embodiment, camera modules 10, 50a, 50b, 50c, 50d, 50e, 50f, and 50g have different viewing angles, allowing electronic device 5 to provide different magnifications, achieving an optical zoom effect. Furthermore, camera module 10 and camera module 50a are telephoto camera modules equipped with optical path deflection elements. Furthermore, camera module 50h is capable of acquiring depth information from an image. The electronic device 5 described above includes a plurality of camera modules 10, 50a, 50b, 50c, 50d, 50e, 50f, 50g, and 50h, but the number and configuration of the camera modules are not intended to limit the present invention. When a user photographs a subject, the electronic device 5 utilizes camera module 10, camera module 50a, camera module 50b, camera module 50c, camera module 50d, camera module 50e, camera module 50f, camera module 50g, or camera module 50h to focus light and capture an image. The flash module 51 is activated for fill light, and subsequent processing is performed in a manner similar to the aforementioned embodiments, which will not be further described here.
[0178] The camera modules 10, 20, and 30 of the present invention are not limited to smartphones. They can also be used in mobile focus systems, offering both superior aberration correction and high-quality imaging. For example, the camera modules 10, 20, and 30 can be used in a variety of electronic devices, including three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network surveillance equipment, dashcams, backup cameras, multi-lens devices, recognition systems, motion-sensing game consoles, and wearable devices. The aforementioned electronic devices are merely illustrative examples of practical applications of the present invention and are not intended to limit the scope of application of the camera modules 10, 20, and 30 of the present invention.
[0179] Although the present invention has been disclosed above with reference to the aforementioned embodiments, these embodiments are not intended to limit the present invention. Any modifications and variations that do not depart from the spirit and scope of the present invention are intended to be within the scope of the claims. Please refer to the appended claims for the scope of protection defined by the present invention.
Claims
1. A camera module, characterized in that: Include: a base; a lens module having an optical axis, and the lens module is disposed on the base; a reflective module disposed on the object side of the lens module, the reflective module comprising a reflective element carrier and a reflective element, wherein the reflective element is disposed on the reflective element carrier; a longitudinal guide rod disposed between the base and the lens module, and extending along a first direction parallel to the optical axis; a transverse guide rod disposed between the base and the lens module, and extending along a second direction perpendicular to the optical axis; a rotating shaft guide rod, parallel to the transverse guide rod, and the reflective element can rotate around the rotating shaft guide rod as a central axis; as well as a translatable bracket, disposed between the longitudinal guide rod and the transverse guide rod, and the translatable bracket can move along one direction of the longitudinal guide rod and the transverse guide rod; Wherein, the lens module can move along the longitudinal guide rod and the transverse guide rod respectively; The reflective element carrier has a rotating shaft surface for a reflective surface of the reflective element to lean against, and the rotating shaft surface is located between the reflective surface and the rotating shaft guide rod.
2. The camera module according to claim 1, wherein: It also includes at least one buffering elastic member, wherein the buffering elastic member includes a fixed portion, a buffering contact portion and a buffering elastic portion, the fixed portion is fixed to one of the base and the lens module, the buffering contact portion corresponds to the other of the base and the lens module, and the buffering elastic portion connects the fixed portion and the buffering contact portion.
3. The camera module according to claim 1, wherein: It also includes at least one buffer elastic member, wherein the buffer elastic member includes a fixed portion, a buffer contact portion and a buffer elastic portion, the fixed portion is fixed to one of the translatable bracket and the lens module, the buffer contact portion corresponds to the other of the translatable bracket and the lens module, and the buffer elastic portion connects the fixed portion and the buffer contact portion.
4. The camera module according to claim 1, wherein: It also includes a first driving mechanism, wherein the first driving mechanism includes a first driving magnet and a first driving coil, the first driving magnet is arranged on the lens module, the first driving coil corresponds to the first driving magnet, and the first driving mechanism is used to drive the lens module to move along the first direction.
5. The camera module according to claim 4, wherein: It also includes a second driving mechanism, wherein the second driving mechanism includes a second driving magnet and a second driving coil, the second driving magnet is arranged on the lens module, the second driving coil corresponds to the second driving magnet, and the second driving mechanism is used to drive the lens module to move along the second direction.
6. The camera module according to claim 1, wherein: It also includes a rotation drive mechanism, wherein the rotation drive mechanism includes a rotation drive magnet and a rotation drive coil, the rotation drive magnet is arranged on the reflection module, the rotation drive coil corresponds to the rotation drive magnet, and the rotation drive mechanism is used to drive the reflection module to rotate with the rotation shaft guide rod as the center axis.
7. The camera module according to claim 1, wherein: It further includes a preloading element, wherein the preloading element is connected to the reflection module, and the preloading element is used to provide a preloading force for the reflection module to exert a force towards the rotating shaft guide rod.
8. The camera module according to claim 7, wherein: The preloading element is connected to the base, and the camera module further includes a damper, wherein the damper is disposed between the preloading element and the base.
9. The camera module according to claim 5, wherein: It further includes a ferromagnetic element, wherein the ferromagnetic element is disposed on the base, and the ferromagnetic element corresponds to one of the first driving magnet and the second driving magnet, and is jointly used to provide an attractive force for the lens module to exert a force towards the base, so that the longitudinal guide rod and the transverse guide rod support the lens module.
10. The camera module according to claim 5, wherein: One of the longitudinal guide rod and the transverse guide rod is made of ferromagnetic material, fixed to the base and corresponds to one of the first driving magnet and the second driving magnet, and is jointly used to provide an attractive force for the lens module to exert a force towards the base, so that the longitudinal guide rod and the transverse guide rod support the lens module.
11. The camera module according to claim 1, wherein: Both the longitudinal guide rod and the transverse guide rod are cylinders.
12. The camera module according to claim 1, wherein: The rotating shaft guide rod is a cylinder.
13. The camera module according to claim 1, wherein: The maximum viewing angle of the lens module is FOV, which satisfies the following conditions: 3 degrees < FOV < 40 degrees.
14. The camera module according to claim 1, wherein: The length of the longitudinal guide rod is L1, and the length of the transverse guide rod is L2, which satisfies the following conditions: 0.1 < L2 / L1 < 2.
0.
15. An electronic device, characterized in that: Comprising: The camera module according to claim 1.
16. A camera module, characterized in that: Comprising: A base; A lens module having an optical axis, and the lens module is disposed on the base; A reflection module disposed on the object side of the lens module, the reflection module includes a reflection element carrier and a reflection element, and the reflection element is disposed on the reflection element carrier; A longitudinal guide rod disposed between the base and the lens module, and the longitudinal guide rod extends along a first direction parallel to the optical axis; A transverse guide rod disposed between the base and the lens module, and the transverse guide rod extends along a second direction perpendicular to the optical axis; A rotating shaft guide rod parallel to the transverse guide rod, and the reflection module is disposed on the rotating shaft guide rod; And A translatable bracket disposed between the longitudinal guide rod and the transverse guide rod, and the translatable bracket can move along one of the longitudinal guide rod and the transverse guide rod; Wherein, the lens module can move along the longitudinal guide rod and the transverse guide rod respectively; Wherein, the reflection element carrier has a rotating shaft surface for the reflection surface of the reflection element to abut against, and the rotating shaft surface is located between the reflection surface and the rotating shaft guide rod.