Camera module
By introducing buffer components and dampers into the camera module, the problem of the camera module being easily damaged by external impacts was solved, improving reliability, reducing noise, and improving quality.
Patent Information
- Application Number
- CN202520077217.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-06-13
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Camera modules are easily damaged by external impacts, and high-performance components are heavy, resulting in poor impact resistance.
Introducing buffer components and dampers into the camera module, the buffer components and multiple dampers formed of elastic material are set in the optical axis direction to absorb impact energy and reduce collisions and deformation between components.
This improved the reliability of the camera module, reduced noise and damage caused by component collisions, and enhanced overall quality.
Smart Images

Figure CN223942764U_ABST
Abstract
Description
[0001] Cross-reference to related applications
[0002] This application claims priority to Korean Patent Application No. 10-2024-0076818, filed on June 13, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field
[0003] The following description pertains to a camera module implemented in a mobile device. Background Technology
[0004] Camera modules are implemented in mobile devices such as, but not limited to, smartphones, tablet PCs, and laptops. Furthermore, camera modules implemented in mobile devices typically feature autofocus (AF) and optical image stabilization (OIS), and there is a trend towards adding zoom capabilities.
[0005] Whether a camera module functions properly under external impact is a crucial factor in determining its quality. However, higher-performance camera modules are often heavier, making them less susceptible to impact damage.
[0006] The above information is presented as background information and is intended to aid in understanding this disclosure. No determination or assertion is made as to whether any of the above content constitutes an application of prior art to this disclosure. Utility Model Content
[0007] This summary is provided to present the selection of concepts in a simplified form, while these concepts are further described in the following detailed description. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.
[0008] In general, the camera module includes: a housing having an internal space; a lens module housed in the internal space, at least a portion of which is configured to move in the optical axis direction; and a first stop and a second stop spaced apart in the optical axis direction within the housing, each of the first stop and the second stop including a buffer member protruding toward the lens module, wherein a plurality of dampers are disposed on at least one side of the lens module, the plurality of dampers being spaced apart in the optical axis direction and protruding toward the first stop and the second stop, and wherein the plurality of dampers and the buffer member are disposed opposite to each other in the optical axis direction.
[0009] The buffer components and multiple dampers can be formed of elastic materials.
[0010] The lens module may include: a lens tube, including at least one lens, and fixedly disposed in a housing; and a lens holder, including at least one lens, and configured to move in the optical axis direction within the housing, wherein a plurality of dampers are disposed on the lens holder.
[0011] The lens holder may further include: a lens mounting portion spaced apart from the lens barrel in the optical axis direction, and at least one lens included in the lens holder is mounted on the lens mounting portion; and a first support portion and a second support portion extending toward the lens barrel from a first side of the lens mounting portion and a second side of the lens mounting portion in the optical axis direction, respectively, wherein a plurality of dampers are disposed on at least one of the first support portion and the second support portion.
[0012] Multiple dampers can be integrally formed with the lens holder.
[0013] The camera module may also include a damper bracket attached to at least one side surface of the lens mount, wherein a plurality of dampers are mounted on the lens mount via the damper bracket.
[0014] Multiple dampers may include a pair of dampers arranged in a direction perpendicular to the optical axis, and a buffer member may include a pair of protrusions facing the pair of dampers in the optical axis direction.
[0015] The lens module may further include a lens module drive section, which includes a drive magnet and a drive coil and is configured to provide a driving force to move the lens holder in the optical axis direction, wherein the drive magnet is disposed on a first side surface of the lens holder, and wherein a plurality of dampers may be disposed on a second side surface of the lens holder, the second side surface of the lens holder being at least opposite to the first side surface of the lens holder relative to the optical axis.
[0016] The camera module may further include: a folding module, including a reflective member, and the folding module is disposed in front of the lens module based on an optical path; and an image sensor module, including an image sensor, and disposed at the rear of the lens module based on an optical path, wherein a first stop may be disposed between the folding module and the lens module, and a second stop may be disposed between the lens module and the image sensor module.
[0017] In general, the camera module includes: a folding module disposed in a housing and configured to change the optical path; a lens module including a plurality of lenses, and light passing through the folding module is incident on the lens module; an image sensor module, and light passing through the lens module is incident on the image sensor module; and a first stop and a second stop spaced apart in the optical axis direction, with the lens module inserted between the first stop and the second stop, wherein buffer members are respectively disposed on the first stop and the second stop to protrude toward the lens module, and a plurality of dampers are disposed on the lens module to protrude toward the first stop and the second stop, respectively, and face the buffer members in the optical axis direction.
[0018] The lens module may further include: a lens tube, fixedly disposed in the housing; and a lens support, disposed in the housing and configured to move in the optical axis direction between the folding module and the image sensor module, wherein a plurality of dampers may be disposed on the lens support.
[0019] Multiple dampers can be integrally formed with the lens holder.
[0020] Multiple dampers can be spaced apart from each other in the optical axis direction on at least one side surface of the lens holder.
[0021] The camera module may also include a damper bracket attached to at least one side surface of the lens mount, wherein a plurality of dampers are mounted on the lens mount via the damper bracket.
[0022] Multiple dampers may include a pair of dampers arranged in a direction perpendicular to the optical axis, wherein the buffer member may include a pair of protrusions facing the pair of dampers in the optical axis direction.
[0023] The buffer components and multiple dampers can be formed of elastic materials.
[0024] In general, the camera module includes: a housing including an internal space; a lens holder disposed in the internal space and configured to move in the optical axis direction; and a first stop disposed in the housing, the first stop including a buffer member protruding toward the lens module, and wherein at least one side of the lens holder is provided with a damper protruding toward the first stop, and wherein the damper and the buffer member are disposed opposite to each other in the optical axis direction.
[0025] The second stop can be spaced apart from the first stop in the optical axis direction.
[0026] Other features and aspects will become apparent from the following detailed description, drawings, and claims. Attached Figure Description
[0027] Figure 1A perspective view of an exemplary camera module according to one or more embodiments is shown.
[0028] Figure 2 It shows Figure 1 A perspective view of an exemplary camera module with its cover removed.
[0029] Figure 3 It shows Figure 2 The top view of the exemplary camera module shown.
[0030] Figure 4 It shows along Figure 2 A partial sectional view taken from line I-I'.
[0031] Figure 5 A schematic exploded perspective view of an exemplary camera module according to one or more embodiments is shown.
[0032] Figure 6 An exploded perspective view of an exemplary folding module according to one or more embodiments is shown.
[0033] Figure 7 A top view of an exemplary folding module according to one or more embodiments is shown.
[0034] Figure 8 A bottom view of an exemplary folding module according to one or more embodiments is shown.
[0035] Figure 9 An exploded perspective view of an exemplary lens module according to one or more embodiments is shown.
[0036] Figure 10 A side view of an exemplary lens holder according to one or more embodiments is shown.
[0037] Figure 11 An exploded perspective view of an exemplary lens holder and stop according to a first exemplary embodiment is shown.
[0038] Figure 12A and Figure 12B This is a side view showing the state in which the lens holder according to the first exemplary embodiment is in contact with the stop when it is moved to the maximum position.
[0039] Figure 13A An exploded perspective view of a lens holder (including a damper holder) and a stop member according to a second exemplary embodiment is shown.
[0040] Figure 13B A side view of an exemplary lens holder according to a second exemplary embodiment is shown.
[0041] Figure 14An exploded perspective view of an exemplary lens holder and stop according to a third exemplary embodiment is shown.
[0042] Figure 15 An exploded perspective view of an exemplary lens holder and stop according to a fourth exemplary embodiment is shown.
[0043] Figure 16A and Figure 16B This is a side view showing the lens holder according to the fourth exemplary embodiment in contact with the stop when moved to the maximum position.
[0044] Figure 17 An exploded perspective view of an exemplary lens holder and stop according to a fifth exemplary embodiment is shown.
[0045] Figure 18 An exploded perspective view of an exemplary lens holder and stop according to a sixth exemplary embodiment is shown.
[0046] Throughout the accompanying drawings and detailed embodiments, the same reference numerals denote the same elements unless otherwise described. For clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative dimensions, scale, and depiction of elements in the drawings may be exaggerated. Detailed Implementation
[0047] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations and / or the order within operations described herein are merely examples and are not limited to the order set forth herein, but can be changed as will be apparent after understanding the disclosure of this application, except for the order of operations and / or the order within operations that must occur in a certain order. As another example, the order of operations and / or the order within operations can be performed in parallel, except for at least a portion of the order of operations and / or at least a portion of the order within operations that must occur in a certain order (e.g., a specific order). Furthermore, for clarity and brevity, descriptions of features known after understanding the disclosure of this application may be omitted.
[0048] Although terms such as “first,” “second,” and “third,” or A, B, (a), (b), etc., may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Each of these terms is not intended to define, for example, the nature, order, or sequence of the corresponding component, assembly, region, layer, or part, but only to distinguish the corresponding component, assembly, region, layer, or part from other components, assemblies, regions, layers, or parts. Therefore, the first component, first assembly, first region, first layer, or first part mentioned in the examples described herein may also be referred to as a second component, second assembly, second region, second layer, or second part without departing from the teachings of the examples.
[0049] Throughout this specification, when a component, element, or layer is described as being “on,” “connected to,” “attached to,” or “joined to” another component, element, or layer, it may be directly “on” (e.g., in contact with), directly “connected to,” directly “attached to,” or directly “joined to” the other component, element, or layer, or one or more other components, elements, or layers may reasonably be present between them. When a component, element, or layer is described as being “directly” “on,” “directly connected to,” “directly attached to,” or “directly joined to” another component, element, or layer, there are no other components, elements, or layers between them. Similarly, expressions such as “between” and “immediately between” and “adjacent to” and “immediately adjacent to” can also be interpreted as described above.
[0050] The terminology used herein is for describing various examples only and is not intended to limit this disclosure. The terms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. As non-limiting examples, the terms “comprising,” “including,” and “having” specify the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof, nor do they exclude the presence of alternatives to said features, quantities, operations, components, elements, and / or combinations thereof. Furthermore, while one embodiment may describe the presence of such terms “comprising,” “including,” and “having” specifying the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, other embodiments may exist in which one or more of the stated features, quantities, operations, components, elements, and / or combinations thereof are absent.
[0051] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more of the associated listed items. The phrases “at least one of A, B, and C” are intended to have a separate meaning, and these phrases also include examples in which one or more of A, B, and C may be present (e.g., any combination of one or more of A, B, and C), unless the corresponding description and implementation require that such an enumeration (e.g., “at least one of A, B, and C”) be interpreted as having a combined meaning.
[0052] The features described herein may be implemented in various forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways in which the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. Throughout this document, the term “may” is used with respect to examples or implementations; for example, regarding what an example or implementation may include or implement, it means that there exists at least one example or implementation that includes or implements this feature, and that all examples and implementations are not limited thereto. The terms “example” or “implementation” as used herein have the same meaning (e.g., the phrase “in one example” has the same meaning as “in one implementation,” and “in one or more examples” has the same meaning as “in one or more implementations”).
[0053] One or more examples can improve the reliability of the camera module.
[0054] One or more examples can mitigate the problem of foreign objects generated due to collisions between components when an impact is applied to a camera module, as well as the problem of deformation and / or damage to injection-molded products.
[0055] One or more examples can improve the quality of a camera module. Specifically, one or more examples can reduce noise (sound) caused by collisions between internal components of the camera module.
[0056] Figure 1 A perspective view of an exemplary camera module according to one or more embodiments is shown. Figure 2 It shows Figure 1 A perspective view of an exemplary camera module with its cover removed. Figure 3 It shows Figure 2 A top view of the exemplary camera module shown. Figure 4 It shows along Figure 2 A partial sectional view taken by line I-I', and Figure 5 A schematic exploded perspective view of an exemplary camera module according to one or more embodiments is shown.
[0057] Reference Figure 1 A camera module 1000 according to one or more embodiments may include a housing 1010 and a cover 1030 coupled to the housing 1010. The housing 1010 and the cover 1030 may constitute the appearance of the camera module 1000.
[0058] The cover 1030 may include an opening 1031. Light reflected from an external object can enter the camera module 1000 through the opening 1031.
[0059] The cover 1030 can be formed from a material including metallic materials to serve as a shield.
[0060] Reference Figures 2 to 5 The camera module 1000 according to one or more embodiments may include a folding module 1100, a lens module 1200, and an image sensor module 1300. In a non-limiting example, each of these modules may be housed within a housing 1010.
[0061] The folding module 1100 can be configured to change the direction of light. Light incident on the camera module 1000 through the opening 1031 of the cover 1030 can have a changed direction of travel from the folding module 1100 to the lens module 1200. For example, light incident in the thickness direction (first optical axis direction) (Y-axis direction) of the camera module 1000 can have its direction of travel changed based on the folding module 1100 to a direction that is approximately parallel to the length direction (second optical axis direction) (Z-axis direction) of the camera module 1000.
[0062] A camera module 1000 according to one or more embodiments can provide a relatively long total track length (TTL) without significantly increasing the thickness of the camera module 1000 by having a folding module 1100. The total track length can be defined as the maximum distance between the lens surface closest to the object side of one of the plurality of lenses in the lens module 1200, which will be described later, and the imaging surface of the image sensor, which will be described later, and the longer the total track length, the more advantageous it is for achieving a high zoom ratio.
[0063] The lens module 1200 can be configured to refract light. Light reflected from the folding module 1100 can be refracted as it passes through the lens module 1200.
[0064] The image sensor module 1300 may include an image sensor 1310 and a printed circuit board (sensor board) 1320 on which the image sensor 1310 is mounted.
[0065] Image sensor 1310 can be configured to have its imaging surface facing lens module 1200, and can generate an electrical signal corresponding to light passing through lens module 1200 and incident on the imaging surface. The electrical signal converted by image sensor 1310 can be displayed as a visual image on the screen (display) of a mobile device.
[0066] The image sensor module 1300 may also include a filter that filters out light that passes through the lens module 1200 and is incident on the image sensor 1310. In an example, the filter may be an infrared cut-off filter that blocks light in the infrared region from passing through the lens module 1200 and being incident on the image sensor 1310.
[0067] The housing 1010 may have an internal space. The internal space of the housing 1010 may accommodate the folding module 1100 and the lens module 1200. The housing 1010 may include a protruding wall 1011 that extends from two side walls between the internal space that accommodates the folding module 1100 and the internal space that accommodates the lens module 1200.
[0068] The image sensor module 1300 can be connected to the housing 1010 from the outside of the housing 1010.
[0069] The folding module 1100, lens module 1200, and image sensor module 1300 can be arranged sequentially along the second optical axis (Z-axis direction). Therefore, in this example, the housing 1010 can have a length along the second optical axis (Z-axis direction). However, in another example, the folding module 1100, lens module 1200, and image sensor module 1300 can be housed in different housings. In this example, the housing housing the folding module 1100, the housing housing the lens module 1200, and the housing housing the image sensor module 1300 can be arranged along the second optical axis (Z-axis direction).
[0070] Additionally, the stop 1400 can be disposed within the housing 1010. The stop 1400 can be connected to the protruding wall 1011 and the connecting groove 1013 (see...). Figure 11 The connecting groove 1013 is formed in the portion of the protruding wall 1011 in the second optical axis direction (Z-axis direction).
[0071] In this example, multiple stops 1400 can be provided. A portion of the multiple stops 1400 (first stops) can be connected to a connecting groove 1013 formed in the protruding wall 1011 and can be disposed between the folding module 1100 and the lens module 1200. Additionally, a portion of the remaining stops 1400 (second stops) can be connected to the connecting groove 1013, which is formed in the portion of the protruding wall 1011 facing the housing 1010 in the second optical axis direction (Z-axis direction) and can be disposed between the lens module 1200 and the image sensor module 1300. That is, the first stops and the second stops can be spaced apart in the second optical axis direction (Z-axis direction).
[0072] Reference Figure 11 The stop 1400 may include a frame 1410 connected to the connecting groove 1013 and a buffer member 1430 disposed on the frame 1410 and protruding toward the lens module 1200.
[0073] By way of example only, frame 1410 may be formed of a rigid material to support cushioning member 1430, and cushioning member 1430 may be formed of an elastic material such as thermoplastic polyurethane (TPU), rubber, silicone, etc. However, the material of cushioning member 1430 may not be limited to the materials listed above, but may also be formed of other materials with similar properties.
[0074] Figure 6 This is an exploded perspective view of a folding module according to one or more embodiments. Figure 7 It is a top view of a folding module according to one or more embodiments, and Figure 8 This is a bottom view of a folding module according to one or more embodiments.
[0075] The folding module 1100 is rotatably disposed within the housing 1010. In one embodiment, the folding module 1100 can rotate about two rotation axes perpendicular to the second optical axis (Z-axis). The folding module 1100 can rotate about a first rotation axis (X-axis) and a second rotation axis (Y-axis). The first rotation axis (X-axis) and the second rotation axis (Y-axis) can both be perpendicular to the second optical axis (Z-axis) and can be perpendicular to each other. According to one or more embodiments, the camera module 1000 can implement shake correction functionality based on the rotation of the folding module 1100.
[0076] Reference Figure 6 The folding module 1100 may include a reflective member 1110, a reflective bracket 1120, and a rotating bracket 1130.
[0077] The reflective member 1110 can change the direction of light incident inside the camera module 1000 by approximately 90 degrees. In a non-limiting example, the reflective member 1110 can be configured as a mirror or a prism.
[0078] The reflective component 1110 can be mounted on the reflective bracket 1120.
[0079] In addition, the reflector bracket 1120 can be rotatably supported on the rotating bracket 1130, while the reflector member 1110 is mounted on the reflector bracket 1120.
[0080] The first ball assembly 1141 can be disposed between the reflective bracket 1120 and the rotating bracket 1130, and the reflective bracket 1120 can be rotatably supported on the rotating bracket 1130 by the first ball assembly 1141. The first ball assembly 1141 may include a plurality of ball members spaced apart in a first axial direction (X-axis direction).
[0081] The reflective support 1120 and the rotating support 1130 may include receiving slots 1121 and 1131 on their facing surfaces. These receiving slots 1121 and 1131 may be spaced apart from each other in a first axial direction (X-axis direction) and may receive a portion of a plurality of ball components included in the first ball assembly 1141. The number of receiving slots 1121 and 1131 may correspond to the number of ball components included in the first ball assembly 1141.
[0082] In one embodiment, the reflective bracket 1120 may be provided with a first receiving slot 1121, and the rotating bracket 1130 may be provided with a second receiving slot 1131. The first receiving slot 1121 and the second receiving slot 1131 may face each other in the second optical axis direction (Z-axis direction).
[0083] A plurality of ball components included in the first ball assembly 1141 can be fitted between the first receiving groove 1121 and the second receiving groove 1131. The first receiving groove 1121 and the second receiving groove 1131 can be formed having two or more inclined surfaces, and a portion of these grooves can be formed having at least three inclined surfaces. The plurality of ball components included in the first ball assembly 1141 can be supported by the first receiving groove 1121 and the second receiving groove 1131 at at least two points, and a portion can be supported at at least three points. Therefore, the first ball assembly 1141 can be suitably rotated while fitted between the first receiving groove 1121 and the second receiving groove 1131, simultaneously forming a first rotation axis (X-axis) of the reflector bracket 1120. The reflector bracket 1120 can rotate relative to the rotating bracket 1130 relative to the first rotation axis (X-axis) formed by the first ball assembly 1141.
[0084] To prevent the first ball group 1141 from detaching, the reflective bracket 1120 can be in close contact with the rotating bracket 1130 in the second optical axis direction (Z-axis direction) where the first receiving slot 1121 and the second receiving slot 1131 face each other.
[0085] In one embodiment, the first magnetic component 1171 may be disposed in the reflective bracket 1120, and the second magnetic component 1173 may be disposed in the rotating bracket 1130 so as to face the first magnetic component 1171 in the second optical axis direction (Z-axis direction).
[0086] The first magnetic component 1171 and the second magnetic component 1173 can generate a magnetic attraction between them. One of the first magnetic component 1171 and the second magnetic component 1173 can be a traction magnet, and the other can be a traction yoke or a traction magnet. For example, the first magnetic component 1171 can be a traction yoke assembled in the reflective bracket 1120, and the second magnetic component 1173 can be a traction magnet disposed in the rotating bracket 1130.
[0087] The magnetic attraction force can act on the second optical axis direction (Z-axis direction) where the first magnetic component 1171 and the second magnetic component 1173 face each other. Therefore, the reflective bracket 1120 can be in close contact with the rotating bracket 1130 in the second optical axis direction (Z-axis direction).
[0088] The rotating bracket 1130 can be connected to the auxiliary member 1180 to surround both sides of the reflective bracket 1120. The auxiliary member 1180 can be connected to the rotating bracket 1130 at a certain distance from the reflective bracket 1120 so as not to interfere with the rotation of the reflective bracket 1120.
[0089] The auxiliary component 1180 can prevent the reflector bracket 1120 from separating from the rotating bracket 1130. In addition, the damper provided in the auxiliary component 1180 can prevent direct collision between the reflector bracket 1120 and the rotating bracket 1130 due to the rotation of the reflector bracket 1120.
[0090] The rotating bracket 1130 can be rotatably supported on the housing 1010.
[0091] The second ball assembly 1143 can be disposed between the rotating support 1130 and the housing 1010, and the rotating support 1130 can be rotatably supported on the housing 1010 by the second ball assembly 1143. The second ball assembly 1143 may include a rotating axis ball 1143a and a plurality of guide balls 1143b spaced apart from the rotating axis ball 1143a.
[0092] The rotating bracket 1130 and the housing 1010 may include receiving grooves and guide grooves 1137 and 1017 on their facing surfaces. The receiving groove is used to receive a portion of the rotating shaft ball 1143a, and the guide grooves 1137 and 1017 are used to receive portions of a plurality of guide balls 1143b. The guide grooves 1137 and 1017 may be configured in a number corresponding to the plurality of guide balls 1143b.
[0093] In one embodiment, the rotating bracket 1130 may be provided with a third receiving slot 1135 (see [link]). Figure 8 Furthermore, the housing 1010 may be provided with a fourth receiving slot (not shown). The third receiving slot 1135 and the fourth receiving slot may face each other in the first optical axis direction (Y-axis direction).
[0094] A rotating ball 1143a can be fitted between a third receiving slot 1135 and a fourth receiving slot. The third receiving slot 1135 and the fourth receiving slot can be formed with at least three inclined surfaces, and the rotating ball 1143a can be supported at at least three points within the third receiving slot 1135 and the fourth receiving slot. Therefore, the rotating ball 1143a can be appropriately selected while being fitted between the third receiving slot 1135 and the fourth receiving slot, simultaneously forming a second rotation axis (Y-axis) of the rotating support 1130. The rotating support 1130 can rotate relative to the housing 1010 based on the second rotation axis (Y-axis) formed by the rotating ball 1143a.
[0095] In addition, in this embodiment, the rotating bracket 1130 may be provided with a first guide groove 1137, and the housing 1010 may be provided with a second guide groove 1017. The first guide groove 1137 and the second guide groove 1017 may face each other in the first optical axis direction (Y-axis direction).
[0096] Multiple guide balls 1143b can be fitted between the first guide groove 1137 and the second guide groove 1017. The first guide groove 1137 and the second guide groove 1017 can be in the form of a curve extending in the circumferential direction of a circle centered on the second rotation axis (Y-axis). Alternatively, the first guide groove 1137 and the second guide groove 1017 can be in the form of a straight line extending in the tangential direction of the circumference of a circle centered on the second rotation axis (Y-axis). The multiple guide balls 1143b can roll along the extending direction of the guide grooves 1137 and 1017 while being fitted between them. That is, the multiple guide balls 1143b can maintain the gap between the rotating bracket 1130 and the housing 1010, and support the rotating bracket 1130 to rotate about the second rotation axis (Y-axis).
[0097] To prevent the second ball assembly 1143 from detaching, the rotating bracket 1130 can be in close contact with the housing 1010 in the first optical axis direction (Y-axis direction) where the third receiving slot 1135, the fourth receiving slot, the first guide slot 1137, and the second guide slot 1017 face each other.
[0098] In one embodiment, the third magnetic component 1161 may be disposed in the rotating bracket 1130, and the fourth magnetic component 1167 may be disposed in the housing 1010 so as to face the third magnetic component 1161 in the first optical axis direction (Y-axis direction).
[0099] The third magnetic member 1161 and the fourth magnetic member 1167 can generate a magnetic attraction between them. In an embodiment, the third magnetic member 1161 can be a second driving magnet, which will be described later, and the fourth magnetic member 1167 can be a second magnetic yoke, which will be described later. The magnetic attraction can act in a first optical axis direction (Y-axis direction) in which the third magnetic member 1161 and the fourth magnetic member 1167 face each other, so that the rotating support 1130 can be in close contact with the housing 1010 in the first optical axis direction (Y-axis direction).
[0100] The folding module 1100 may include a drive unit that provides driving force to rotate the reflector bracket 1120 and the rotating bracket 1130.
[0101] The folding module 1100 may include a first drive portion (first drive unit or reflector bracket drive portion) 1150, which provides drive force to rotate the reflector bracket 1120 about a first rotation axis (X-axis) relative to the rotating bracket 1130.
[0102] The first driving portion 1150 may include a first driving magnet 1151 disposed in the reflective bracket 1120 and a first driving coil 1153 disposed in the housing 1010. The reflective bracket 1120 may include an extension 1120a extending between the rotating bracket 1130 and the housing 1010, and the first driving magnet 1151 may be in the extension 1120a to face one surface of the housing 1010.
[0103] The first drive coil 1153 may be disposed on a surface of the housing 1010 facing the first drive magnet 1151. The first drive coil 1153 may be disposed in the housing 1010 and attached to the motherboard 1050. The housing 1010 may include an opening so that the first drive coil 1153 can be exposed to the internal space.
[0104] The first drive coil 1153 can be exposed to the interior space of the housing 1010 through the opening and can directly face the first drive magnet 1151.
[0105] Reference Figure 7 The first driving magnet 1151 and the first driving coil 1153 can face each other in the second optical axis direction (Z-axis direction) and can provide a driving force for rotating the reflective bracket 1120 based on their interaction.
[0106] In one embodiment, the first driving magnet 1151 may face two first driving coils 1153, which can provide driving force to cause the reflective bracket 1120 to rotate about the first rotation axis (X-axis).
[0107] The first drive section 1150 may further include a first position sensor 1155 for detecting the position (rotation amount) of the reflector bracket 1120. As a non-limiting example, the first position sensor 1155 may be configured as a Hall sensor.
[0108] The first position sensor 1155 can be attached to the motherboard 1050 together with the first drive coil 1153 and disposed in the housing 1010 so as to face the first drive magnet 1151.
[0109] The first position sensor 1155 can be configured to face the neutral region between the N and S poles of the first driving magnet 1151, and can effectively detect the position (rotation amount) of the reflector bracket 1120.
[0110] Additionally, the first drive unit 1150 may also include a first yoke 1157 configured to face the first drive magnet 1151, with the first drive coil 1153 and the first position sensor 1155 inserted between them.
[0111] The first magnetic yoke 1157 can be configured to cover another surface of the motherboard 1050 from the outside (meaning the surface opposite to the surface on which the first drive coil 1153, etc., can be disposed), thereby preventing the leakage of magnetic force generated from the first drive magnet 1151 and concentrating the magnetic force.
[0112] The folding module 1100 may include a second drive unit (second drive portion or rotating bracket drive portion) 1160, which provides drive force to rotate the rotating bracket 1130 about a second rotation axis (Y-axis) relative to the housing 1010.
[0113] The second drive unit 1160 may include a second drive magnet (i.e., a third magnetic component 1161) disposed in the rotating bracket 1130 and a second drive coil 1163 disposed in the housing 1010.
[0114] The second driving magnet can be disposed on the bottom surface of the rotating bracket 1130 and can be disposed between a rotating shaft ball 1143a and a plurality of guide balls 1143b.
[0115] The second drive coil 1163 can be disposed on a surface of the housing 1010 facing the second drive magnet. The housing 1010 may include an opening that exposes the second drive coil 1163 to the internal space. The second drive coil 1163 can be exposed to the internal space of the housing 1010 through this opening and can directly face the second drive magnet.
[0116] Reference Figure 8 The second driving magnet and the second driving coil 1163 can face each other in the first optical axis direction (Y-axis direction) and can provide a driving force to rotate the rotating bracket 1130 based on their interaction.
[0117] In an embodiment, the second driving magnet and the second driving coil 1163 may be configured in one or more corresponding numbers and may face each other one to one, and may provide driving force to rotate the rotating bracket 1130 about the second rotation axis (Y axis).
[0118] The second drive section 1160 may further include a second position sensor 1165 for detecting the position (rotation amount) of the rotating bracket 1130. In a non-limiting example, the second position sensor 1165 may be configured as a Hall sensor.
[0119] The second position sensor 1165 can be attached to the motherboard 1050 together with the second drive coil 1163, and can be disposed in the housing 1010 facing the second drive magnet. The second position sensor 1165 can be configured to face the neutral region disposed between the N pole and the S pole of the second drive magnet, and can effectively detect the position (rotation amount) of the rotating bracket 1130.
[0120] Additionally, the second drive section 1160 may also include a second yoke (i.e., a fourth magnetic member 1167) configured to face the second drive magnet, with the second drive coil 1163 and the second position sensor 1165 inserted between them.
[0121] The second yoke can be configured to cover another surface of the motherboard 1050 from the outside (meaning the surface opposite to the surface where the second drive coil 1163, etc., can be installed), thereby preventing the leakage of magnetic force generated from the second drive magnet and concentrating the magnetic force.
[0122] In addition, the second magnetic yoke can generate magnetic force with the second driving magnet, thereby making the rotating bracket 1130 in close contact with the bottom surface of the housing 1010.
[0123] Figure 9 This is an exploded perspective view of an exemplary lens module according to one or more embodiments, and Figure 10This is a side view of one side of an exemplary lens module according to one or more embodiments.
[0124] Reference Figure 9 The lens module 1200 may include a lens barrel 1210 and a lens holder 1220.
[0125] Additionally, the lens module 1200 may include a plurality of lenses arranged along the second optical axis (Z-axis direction). These lenses can refract light emitted from the folding module 1100.
[0126] Multiple lenses can be individually mounted in the lens barrel 1210 and on the lens holder 1220. That is, the lens barrel 1210 and the lens holder 1220 can each include at least one lens arranged along the second optical axis direction (Z-axis direction).
[0127] In the example, the lens barrel 1210 may be fixedly disposed within the housing 1010. In one embodiment, a portion of the lens barrel 1210 may be coupled to a mounting portion 1014 disposed within the interior space of the housing 1010, and the lens barrel 1210 may be spaced apart from the bottom surface of the housing 1010 by a predetermined distance (approximately corresponding to the diameter of the plurality of spherical members included in the third spherical group 1245 (described later)). However, in another embodiment, the lens barrel 1210 may be a movable member and may be configured to be driven independently of the lens holder 1220 described later.
[0128] The lens holder 1220 may include a lens mounting portion 1221 on which at least one lens is mounted, and support portions 1223a, 1223b extending on both sides of the lens mounting portion 1221 in the second optical axis direction (Z-axis direction).
[0129] The lens mounting portion 1221 can be disposed between the lens barrel 1210 and the image sensor module 1300. Therefore, light incident on the camera module 1000 can pass through at least one lens mounted in the lens barrel 1210 and then be incident on at least one lens mounted on the lens holder 1220.
[0130] The support portions 1223a and 1223b may include a first support portion 1223a and a second support portion 1223b extending toward the lens barrel 1210 from the first side and the second side of the lens mounting portion 1221, respectively, in the second optical axis direction (Z-axis direction).
[0131] That is, the first support portion 1223a and the second support portion 1223b can be disposed on opposite sides relative to the second optical axis (Z axis) to be spaced apart in the width direction (X-axis direction) of the camera module 1000.
[0132] Since the lens holder 1220 can have the above-described structure, the lens barrel 1210 can be disposed in the space defined at least partially by the lens mounting portion 1221, the first support portion 1223a, and the second support portion 1223b of the lens holder 1220.
[0133] The lens holder 1220 can be movably disposed within the housing 1010. In one embodiment, the lens holder 1220 can move back and forth in the second optical axis direction (Z-axis direction). According to one or more embodiments, the camera module 1000 can realize focus adjustment and zoom functions by moving the lens module 1200 (specifically, the lens holder 1220).
[0134] The third ball group 1245 can be disposed between the lens bracket 1220 and the housing 1010, and the lens bracket 1220 can be movably supported on the housing 1010 by the third ball group 1245.
[0135] The third ball assembly 1245 may include a plurality of ball members disposed between the lens holder 1220 and the housing 1010, and specifically, between the first support portion 1223a and the housing 1010 and between the second support portion 1223b and the housing 1010. The plurality of ball members spaced apart in the second optical axis direction (Z-axis direction) may be disposed between the first support portion 1223a and the housing 1010 and between the second support portion 1223b and the housing 1010.
[0136] The lens holder 1220 and the housing 1010 may each include a guide groove on their facing surfaces, the guide groove accommodating a portion of a plurality of ball members included in the third ball group 1245. The guide grooves may be configured in a number corresponding to the plurality of ball members included in the third ball group 1245.
[0137] In one embodiment, the lens holder 1220 may be provided with a third guide groove (not shown), and the housing 1010 may be provided with a fourth guide groove 1019. The third guide groove and the fourth guide groove 1019 may face each other in the first optical axis direction (Y-axis direction).
[0138] Multiple ball components included in the third ball group 1245 can be fitted between the third guide groove and the fourth guide groove 1019. The third guide groove and the fourth guide groove 1019 can be configured as straight lines extending approximately in the second optical axis direction (Z-axis direction). The multiple ball components included in the third ball group 1245 can roll along the extension direction of the guide grooves while being fitted between the third guide groove and the fourth guide groove 1019. That is, the third ball group 1245 can maintain the gap between the lens holder 1220 and the housing 1010, and can support the movement of the lens holder 1220 in the second optical axis direction (Z-axis direction).
[0139] To prevent the third ball assembly 1245 from detaching, the lens bracket 1220 can be in close contact with the housing 1010 in the first optical axis direction (Y-axis direction) where the third guide groove and the fourth guide groove 1019 face each other.
[0140] In one embodiment, the fifth magnetic component 1271 may be disposed in the lens holder 1220, and the sixth magnetic component 1273 may be disposed in the housing 1010 so as to face the fifth magnetic component 1271 in the first optical axis direction (Y-axis direction).
[0141] The fifth magnetic component 1271 and the sixth magnetic component 1273 can generate a magnetic attraction between them. One of the fifth magnetic component 1271 and the sixth magnetic component 1273 can be a traction magnet, and the other can be a traction yoke or a traction magnet. For example, the fifth magnetic component 1271 can be a traction magnet disposed in the lens holder 1220, and the sixth magnetic component 1273 can be a traction yoke inserted into the housing 1010.
[0142] The magnetic attraction force can act on the first optical axis direction (Y-axis direction) where the fifth magnetic component 1271 and the sixth magnetic component 1273 face each other. Therefore, the lens holder 1220 can be in close contact with the housing 1010 in the first optical axis direction (Y-axis direction).
[0143] The lens module 1200 may include a drive section that provides driving force to move the lens holder 1220.
[0144] The lens module 1200 may include a third drive portion (third drive unit or lens module drive portion) 1250, which provides a driving force to move the lens support 1220 relative to the housing 1010 in the second optical axis direction (Z-axis direction).
[0145] The third drive section 1250 may include a third drive magnet 1251 disposed in the lens holder 1220 and a third drive coil 1253 disposed in the housing 1010.
[0146] The third driving magnet 1251 can be disposed on the side surface of the support portion of the lens holder 1220, for example, on the side surface of the first support portion 1223a (or the second support portion 1223b), so as to face the side surface of the housing 1010.
[0147] The third drive coil 1253 can be disposed on the side surface of the housing 1010 facing the third drive magnet 1251. The third drive coil 1253 can be disposed in the housing 1010 and attached to the motherboard 1050. The housing 1010 may include an opening that exposes the third drive coil 1253 to the internal space. The third drive coil 1253 can be exposed to the internal space of the housing 1010 through this opening so as to directly face the third drive magnet 1251.
[0148] Reference Figure 10 The third driving magnet 1251 and the third driving coil 1253 can face each other in the direction of the third axis (X-axis direction) perpendicular to both the first optical axis (Y-axis) and the second optical axis (Z-axis), and can provide a driving force for moving the lens holder 1220 based on their interaction.
[0149] In this embodiment, the third driving magnet 1251 and the third driving coil 1253 can be configured in one or more corresponding numbers, and can face each other one by one, and can provide driving force to move the lens holder 1220 in the second optical axis direction (Z-axis direction). When the lens holder 1220 moves in the second optical axis direction (Z-axis direction), the gap in the second optical axis direction (Z-axis direction) between the lens holder 1220, the image sensor 1310 and the lens barrel 1210 can be changed.
[0150] The third drive unit 1250 may also include a third position sensor 1255 for detecting the position (movement) of the lens holder 1220. As an example, the third position sensor 1255 may be configured as a Hall sensor.
[0151] The third position sensor 1255 can be attached to the motherboard 1050 together with the third drive coil 1253 disposed in the housing 1010, so as to face the third drive magnet 1251. The third position sensor 1255 can be configured to face the neutral region disposed between the N pole and the S pole of the third drive magnet 1251, thereby effectively detecting the position (movement) of the lens holder 1220.
[0152] Additionally, the third drive unit 1250 may also include a third yoke 1257 configured to face the third drive magnet 1251, with the third drive coil 1253 and the third position sensor 1255 inserted between them.
[0153] The third yoke 1257 can be configured to cover another surface of the motherboard 1050 from the outside (meaning the surface opposite to the surface on which the third drive coil 1253, etc., can be disposed), thereby preventing the leakage of magnetic force generated from the third drive magnet 1251 and concentrating the magnetic force.
[0154] Reference Figure 11 In the example, as described above, a plurality of stops 1400 may be provided in the housing 1010. Specifically, the plurality of stops 1400 may be provided in the housing 1010 to face the lens support 1220 in the direction of movement of the lens support 1220 (i.e., in the second optical axis direction (Z-axis direction)), and the plurality of stops 1400 may respectively face the first support portion 1223a or the second support portion 1223b.
[0155] The stop 1400 may be provided with a buffer member 1430, which may be formed of an elastic material, protruding toward the lens bracket 1220, and may be configured to absorb impact and noise.
[0156] Additionally, according to one or more embodiments, the lens holder 1220 may be provided with a damper 1225, which is formed to protrude toward the stop 1400 to face the buffer member 1430 of the stop 1400 in the second optical axis direction (Z-axis direction). Similar to the buffer member 1430, the damper 1225 may be formed of an elastic material.
[0157] According to this structure, when the lens holder 1220 moves to its maximum position in the second optical axis direction (Z-axis direction), the damper 1225 of the lens holder 1220 and the buffer member 1430 of the stop 1400 come into contact with each other. Therefore, collisions between rigid components (e.g., injection molded products) can be prevented.
[0158] In addition, since the damper 1225 and the buffer member 1430 that are in contact with each other can both be formed of elastic material, the driving distance of the lens bracket 1220 can be unlimited, while reducing the generation of noise.
[0159] In the following text, you can refer to Figures 11 to 18 Various embodiments of the lens holder 1220 and the stop 1400 are described below.
[0160] Figure 11 This is an exploded perspective view of the lens holder and stop according to the first exemplary embodiment, and Figure 12A and Figure 12B This is a side view showing the lens holder according to the first exemplary embodiment in contact with the stop when moved to the maximum position.
[0161] Reference Figure 11 The second support portion 1223b (or the first support portion 1223a) of the lens holder 1220 may be provided with a plurality of dampers 1225 spaced apart in the second optical axis direction (Z-axis direction). In the example, the plurality of dampers 1225 may be integrally formed with the lens holder 1220 by an insert injection molding process.
[0162] Multiple dampers 1225 may be formed to protrude toward the stop 1400 at a position facing the buffer member 1430. Preferably, the multiple dampers 1225 may be configured to face the largest protruding surface (meaning the portion protruding most from the surface of the frame 1410) 1431 of the buffer member 1430.
[0163] That is, the gap formed between the plurality of dampers 1225 and the stop 1400 in the second optical axis direction (Z-axis direction) can be narrower than the gap formed between the second support portion 1223b (or the first support portion 1223a) and the stop 1400 in the second optical axis direction (Z-axis direction).
[0164] Therefore, as shown in FIG12a, when the lens holder 1220 moves to its maximum position (moving in the -Z-axis direction) towards the folding module 1100 along the second optical axis, and as shown in FIG12b, when the lens holder 1220 moves to its maximum position (moving in the +Z-axis direction) towards the image sensor module 1300 along the second optical axis, the damper 1225 and the buffer member 1430 can come into contact with each other, and can prevent contact between the lens holder 1220 and the housing 1010. In the example, the contact between the damper 1225 and the buffer member 1430 can be a surface contact.
[0165] Figure 13A An exploded perspective view of an exemplary lens holder (including a damper holder) and a stop member according to a second exemplary embodiment is shown, as well as Figure 13B A side view of an exemplary lens holder according to a second exemplary embodiment is shown.
[0166] Reference Figure 13A The damper bracket 1227 can be disposed on the second support portion 1223b (or the first support portion 1223a) of the lens bracket 1220. In the example, the damper bracket 1227 can extend in the second optical axis direction (Z-axis direction) and can be coupled to the side surface of the second support portion 1223b (or the first support portion 1223a) facing the housing 1010.
[0167] The damper bracket 1227 may be provided with a plurality of dampers 1225 spaced apart in the second optical axis direction (Z-axis direction). In the example, the plurality of dampers 1225 may be integrally formed with the damper bracket 1227 by an insert injection molding process.
[0168] Multiple dampers 1225 may be formed to protrude toward the stop 1400, and damper brackets 1227 may be connected to a second support portion 1223b (or a first support portion 1223a) such that the multiple dampers 1225 face the buffer member 1430. Preferably, the multiple dampers 1225 may face the largest protruding surface (or protrusion) 1431 of the buffer member 1430.
[0169] Figure 14 An exploded perspective view of an exemplary lens holder and an exemplary stop according to a third exemplary embodiment is shown.
[0170] Reference Figure 14 The first support portion 1223a and the second support portion 1223b of the lens holder 1220 may each be provided with a plurality of dampers 1225 spaced apart from each other in the second optical axis direction (Z-axis direction). For example, the plurality of dampers 1225 may be integrally formed with the lens holder 1220 by an insert injection molding process.
[0171] According to this embodiment, the stop 1400 and the damper 1225 can correspond one-to-one. That is, multiple stop 1400s can respectively face the damper 1225 disposed on the first support portion 1223a or the second support portion 1223b opposite to them.
[0172] Multiple dampers 1225 may be opposite to the buffer member 1430 of the stop 1400. They may be formed to protrude toward each other. Preferably, the multiple dampers 1225 may be arranged to face the largest protruding surface (or protrusion) 1431 of the buffer member 1430.
[0173] Figure 15 An exploded perspective view of an exemplary lens holder and stop according to a fourth exemplary embodiment is shown, and Figure 16A and Figure 16B This is a side view showing the exemplary lens holder according to the fourth exemplary embodiment in contact with the stop when moved to the maximum position.
[0174] Reference Figure 15 On the second support portion 1223b (or the first support portion 1223a) of the lens holder 1220, the first pair of dampers 1225a1 and 1225b1 arranged in the first optical axis direction (Y-axis direction) can be spaced apart from the second pair of dampers 1225a2 and 1225b2 arranged in the first optical axis direction (Y-axis direction) in the second optical axis direction (Z-axis direction).
[0175] According to this embodiment, the first pair of dampers 1225a1 and 1225b1, arranged in the first optical axis direction (Y-axis direction), can be respectively arranged on the first surface of the second support portion 1223b (or the first support portion 1223a) of the lens holder 1220, and the second pair of dampers 1225a2 and 1225b2, arranged in the first optical axis direction (Y-axis direction), can be respectively arranged on the second surface of the second support portion 1223b (or the first support portion 1223a) facing the stop member 1400 in the second optical axis direction (Z-axis direction). The first pair of dampers 1225a1 and 1225b1 and the second pair of dampers 1225a2 and 1225b2 can be arranged along the longitudinal direction of the buffer member 1430. The first pair of dampers 1225a1 and 1225b1 and the second pair of dampers 1225a2 and 1225b2 can be integrally formed with the lens holder 1220 by an insertion injection molding process.
[0176] In addition, according to this embodiment, the buffer member 1430 of the stop member 1400 may include a plurality of maximum protruding surfaces (or protrusions) 1431a1, 1431b1, 1431a2, 1431b2 formed in the first optical axis direction (Y-axis direction) so as to face the corresponding first pair of dampers 1225a1, 1225b1 and second pair of dampers 1225a2, 1225b2 respectively.
[0177] Reference Figure 16A and Figure 16B When the lens holder 1220 moves to the maximum position (moving in the -Z axis direction) along the second optical axis towards the folding module 1100, and when the lens holder 1220 moves to the maximum position (moving in the +Z axis direction) along the second optical axis towards the image sensor module 1300, the corresponding first pair of dampers 1225a1, 1225b1 and the second pair of dampers 1225a2, 1225b2 can each contact with the plurality of maximum protruding surfaces (or protrusions) 1431a1, 1431b1, 1431a2, 1431b2 that are respectively opposite to them.
[0178] Although not shown in the accompanying drawings, the corresponding first pair of dampers 1225a1, 1225b1 and the second pair of dampers 1225a2, 1225b2 may be provided on each of the first support portion 1223a and the second support portion 1223b.
[0179] Figure 17 An exploded perspective view of an exemplary lens holder and an exemplary stop according to a fifth exemplary embodiment is shown, as well as Figure 18 An exploded perspective view of an exemplary lens holder and an exemplary stop according to a sixth exemplary embodiment is shown.
[0180] According to this exemplary embodiment, the buffer member 1430 of the stop member 1400 that contacts the plurality of dampers 1225 disposed in the lens holder 1220 can be configured in a shape other than the protruding surface.
[0181] Reference Figure 17 The largest protrusion (or protrusion) 1432 of the buffer member 1430 facing the plurality of dampers 1225 can be in the form of a line having a length in the width direction of the buffer member 1430. According to this embodiment, when the lens support 1220 moves to the maximum position in the second optical axis direction (moves in the ±Z axis direction), the plurality of dampers 1225 can contact the largest protrusion 1432 of the buffer member 1430, and the contact between the plurality of dampers 1225 and the largest protrusion 1432 can be a line contact.
[0182] In addition, refer to Figure 18 In the example, the largest protrusion (or protrusion) 1433 of the buffer member 1430 facing the plurality of dampers 1225 can be hemispherical. According to this embodiment, when the lens support 1220 moves to its maximum position in the second optical axis direction (moves in the ±Z axis direction), the plurality of dampers 1225 can contact the largest protrusion 1433 of the buffer member 1430, and the contact between the plurality of dampers 1225 and the largest protrusion 1433 can be a point contact.
[0183] While this disclosure includes specific examples, it will be apparent upon understanding the disclosure of this application that various changes in form and detail may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered descriptive only and not for limiting purposes. The description of features or aspects in each example is to be applied to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order, and / or if components in the described system, architecture, device, or circuit are combined in a different manner and / or replaced or supplemented by other components or their equivalents.
[0184] Therefore, in addition to the disclosures above and in all the accompanying drawings, the scope of this disclosure also includes the claims and their equivalents; that is, all variations within the scope of the claims and their equivalents shall be interpreted as included in this disclosure.
Claims
1. A camera module, characterized in that, include: case; A lens module is housed in the housing, and at least a portion of the lens module is configured to move in the direction of the optical axis; as well as A first stop and a second stop are spaced apart in the housing along the optical axis, and each of the first stop and the second stop includes a buffer member protruding toward the lens module. The lens module has a plurality of dampers disposed on at least one side thereof, the dampers being spaced apart along the optical axis and protruding toward the first stop and the second stop. The plurality of dampers and the buffer members are arranged opposite to each other in the direction of the optical axis.
2. The camera module according to claim 1, characterized in that, The buffer member and the plurality of dampers are formed of an elastic material.
3. The camera module according to claim 1, characterized in that, The lens module includes: A lens barrel, including at least one lens, is fixedly disposed within the housing; and A lens holder, including at least one lens, is configured to move within the housing in the direction of the optical axis. The plurality of dampers are disposed on the lens bracket.
4. The camera module according to claim 3, characterized in that, The lens holder also includes: A lens mounting portion, spaced apart from the lens barrel in the optical axis direction, and at least one lens included in the lens holder is mounted on the lens mounting portion; and The first support portion and the second support portion extend toward the lens barrel from the first side and the second side of the lens mounting portion, respectively, along the optical axis. The plurality of dampers are disposed on at least one of the first support portion and the second support portion.
5. The camera module according to claim 3, characterized in that, The plurality of dampers are integrally formed with the lens bracket.
6. The camera module according to claim 3, characterized in that, Also includes: A damper bracket is attached to at least one side surface of the lens bracket. The plurality of dampers are mounted on the lens bracket via the damper bracket.
7. The camera module according to claim 1, characterized in that, The plurality of dampers includes a pair of dampers arranged in a direction perpendicular to the optical axis, and The buffer member includes a pair of protrusions facing the pair of dampers in the direction of the optical axis.
8. The camera module according to claim 3, characterized in that, The lens module also includes: The lens module driving section includes a driving magnet and a driving coil, and is configured to provide a driving force to move the lens holder in the direction of the optical axis. The driving magnet is disposed on the first side surface of the lens holder, and The plurality of dampers are disposed at least relative to the optical axis on the second side surface of the lens holder, and the second side surface of the lens holder is opposite to the first side surface of the lens holder.
9. The camera module according to claim 1, characterized in that, Also includes: A folding module, including a reflective component, is disposed in front of the lens module based on an optical path; as well as An image sensor module, including an image sensor, is disposed at the rear of the lens module based on the optical path. The first stop is disposed between the folding module and the lens module, and the second stop is disposed between the lens module and the image sensor module.
10. A camera module, characterized in that, include: A folding module is housed within the housing and configured to alter the optical path; A lens module, comprising multiple lenses, and light passing through the folding module is incident on the lens module; The image sensor module receives light rays that have passed through the lens module. as well as The first stop and the second stop are spaced apart in the optical axis direction, and the lens module is inserted between the first stop and the second stop. The buffer components are respectively disposed on the first stop and the second stop, protruding toward the lens module, and Multiple dampers are disposed on the lens module, protruding toward the first stop and the second stop respectively, and facing the buffer member in the direction of the optical axis.
11. The camera module according to claim 10, characterized in that, The lens module also includes: The lens barrel is fixedly disposed within the housing; and A lens holder is disposed within the housing and configured to move between the folding module and the image sensor module along the optical axis. The plurality of dampers are disposed on the lens bracket.
12. The camera module according to claim 11, characterized in that, The plurality of dampers are integrally formed with the lens bracket.
13. The camera module according to claim 11, characterized in that, The plurality of dampers are spaced apart from each other in the optical axis direction on at least one side surface of the lens holder.
14. The camera module according to claim 11, characterized in that, Also includes: A damper bracket is attached to at least one side surface of the lens bracket. The plurality of dampers are mounted on the lens bracket via the damper bracket.
15. The camera module according to claim 11, characterized in that, The plurality of dampers includes a pair of dampers arranged in a direction perpendicular to the optical axis, and The buffer member includes a pair of protrusions facing the pair of dampers in the optical axis direction.
16. The camera module according to claim 10, characterized in that, The buffer member and the plurality of dampers are formed of an elastic material.
17. A camera module, characterized in that, include: case; A lens holder is disposed within the housing and configured to move in the direction of the optical axis; as well as A first stop is disposed within the housing, and the first stop includes a buffer member protruding toward the lens holder. A damper protruding toward the first stop is provided on at least one side of the lens bracket, and The damper and the buffer member are arranged opposite to each other in the direction of the optical axis.
18. The camera module according to claim 17, characterized in that, It also includes a second stop, which is spaced apart from the first stop in the optical axis direction.
Citation Information
Patent Citations
Power amplifier with protection loop
KR1020240076818A