Lens module

Abstract

The lens module includes: a lens barrel including a plurality of lenses arranged in a first direction; a zoom ring configured to accommodate the lens barrel; and a lens gap adjusting member coupled to the lens barrel and the zoom ring to adjust a gap between the plurality of lenses. The lens barrel and the zoom ring form a sliding groove extending in the first direction to guide movement of the lens gap adjusting member. The sliding groove includes a serrated portion to which the lens gap adjusting member is engaged to be slidable in the first direction.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2023-0101935 filed on August 4, 2023, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety for all purposes by reference. Technical Field

[0003] The following description relates to a lens module. Background Art

[0004] Mixed reality, which combines virtual reality and augmented reality, is becoming more prominent.

[0005] Mixed reality reflects the real world and reduces the sense of difference given by the virtual world, allowing users to feel virtual images as if they were part of reality. In addition, in addition to vision, various human senses such as hearing and touch can be combined with virtuality, increasing vividness and immersion.

[0006] Among display technologies, mixed reality is provided by a video see-through method that mixes the real world imaged by a camera with a virtual image.

[0007] The above information is presented as background information only to assist with understanding the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with respect to the present disclosure. Summary of the invention

[0008] The purpose of providing this summary is to introduce a selection of concepts in a concise form, and these concepts will be further described in the following detailed description. This summary is not intended to identify the key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter.

[0009] In one general aspect, a lens module includes: a lens barrel including a plurality of lenses arranged in a first direction; a zoom ring configured to accommodate the lens barrel; and a lens gap adjustment member coupled to the lens barrel and the zoom ring to adjust the gap between the plurality of lenses. The lens barrel and the zoom ring form a sliding groove extending in the first direction to guide the movement of the lens gap adjustment member. The sliding groove includes a sawtooth portion, and the lens gap adjustment member is engaged to the sawtooth portion to be slidable in the first direction.

[0010] The lens gap adjusting member may include a sliding portion movable in the sliding groove in the first direction. The bridge portion may have one side disposed on the sliding portion and another side disposed on the lens barrel to support movement of the sliding portion.

[0011] The sliding portion may include a fixing protrusion coupled to the sawtooth portion. When the sawtooth portion and the fixing protrusion are not aligned, the sliding portion may slide in the first direction, and when the fixing protrusion is engaged with the sawtooth portion, the sliding portion may be fixed.

[0012] The lens barrel may further include a fixed barrel and a movable barrel, the fixed barrel including at least one lens, the movable barrel including at least one lens, and the movable barrel configured to move in a first direction relative to the fixed barrel. When the movable barrel moves, a gap between at least one lens of the fixed barrel and at least one lens of the movable barrel may change.

[0013] The bridge portion may include a first bridge portion extending upward from the sliding portion and disposed in the movable barrel, and a second bridge portion extending downward from the sliding portion and disposed in a receiving groove formed in the fixed barrel.

[0014] The end portion of the first bridge portion may have a plurality of bent portions.

[0015] The movable lens barrel may include a seating groove in an outer peripheral surface, and an end portion of the first bridge portion is inserted into the seating groove. The movable lens barrel may be movable in the first direction by the first bridge portion.

[0016] The second bridge portion may be configured to maintain contact with at least an inner wall portion of the accommodation groove when disposed in the accommodation groove.

[0017] The lens module may further include a first ball member and a second ball member disposed between the lens barrel and the zoom ring to guide movement of the zoom ring in the first direction.

[0018] The lens gap adjusting member and the first and second ball members may be disposed at an angular interval in a circumferential direction of the zoom ring and the lens barrel.

[0019] In another general aspect, a lens module includes: a lens barrel including a plurality of lenses arranged in a first direction; a zoom ring configured to accommodate the lens barrel; and a lens gap adjustment member coupled to the lens barrel and the zoom ring and configured to be movable in the first direction. The lens barrel includes a movable barrel and a fixed barrel, the movable barrel including a first lens group, and the fixed barrel including a second lens group. The zoom ring and the movable barrel are configured to move together with the lens gap adjustment member in a direction parallel to the first direction.

[0020] The lens module may further include a first ball member and a second ball member disposed between the fixed barrel and the zoom ring and each including a plurality of ball members disposed in the first direction.

[0021] The lens gap adjusting member and the first and second ball members may be disposed at an angular interval in a circumferential direction of the zoom ring and the lens barrel.

[0022] The fixed lens barrel and the zoom ring may form a sliding groove extending in the first direction to guide movement of the lens gap adjusting member.

[0023] The lens gap adjusting member may include a sliding portion movable in a first direction within the sliding groove, and a bridge portion having one side disposed in the sliding portion and the other side disposed in the lens barrel to support movement of the sliding portion.

[0024] The sliding groove may include a sawtooth portion to which the lens gap adjusting member is coupled to be slidable in the first direction. The sliding portion may include a fixing protrusion coupled to the sawtooth portion.

[0025] Other features and aspects will become apparent from the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of a camera module to which a lens module is applied.

[0027] Figure 2 yes Figure 1 An exploded perspective view of the camera module.

[0028] Figure 3 yes Figure 1 A plan view of the camera module.

[0029] Figure 4 is along Figure 1 A cross-sectional view taken along line II'.

[0030] Figure 5 yes Figure 4 An enlarged exploded perspective view of area A.

[0031] Figure 6 When the lens module is in the initial position Figure 4 Magnified view of area A.

[0032] Figure 7 When the lens module is in the maximum raised position Figure 4 Magnified view of area A.

[0033] Figure 8 is along Figure 3 A cross-sectional view taken along line II-II'.

[0034] Fig. 9 When the lens module is in the initial position Figure 8 Magnified view of area B.

[0035] Fig.10 When the lens module is in the maximum raised position Figure 8 Magnified view of area B.

[0036] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0037] Hereinafter, although examples of the present disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0038] The following specific embodiments are provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described herein. However, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent after understanding the present disclosure. For example, the order of operations described herein is merely an example, and except for operations that must occur in a specific order, it is not limited to the order set forth herein, but can be changed, which will be apparent after understanding the present disclosure. In addition, for greater clarity and brevity, descriptions of features known in the art may be omitted.

[0039] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent after understanding the present disclosure.

[0040] Throughout the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present between the element and the other element.

[0041] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items; similarly, "at least one" includes any one of the associated listed items and any combination of any two or more items.

[0042] Although terms such as "first", "second" and "third" may be used herein to describe various members, components, regions, layers or portions, these members, components, regions, layers or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer or portion from another member, component, region, layer or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer or first portion mentioned in these examples may also be referred to as the second member, second component, second region, second layer or second portion.

[0043] Spatially relative terms such as "above", "higher", "below", "lower", etc. may be used herein for descriptive convenience to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, an element described as being "above" or "higher" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" covers both orientations of "above" and "below". The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0044] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the terms "a", "an" and "the" are intended to include plural forms as well. The terms "include", "comprise" and "have" indicate the presence of the features, numbers, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements and / or combinations thereof.

[0045] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0046] It should be noted that herein, use of the word “may” with respect to an example, such as regarding what an example may include or implement, means that there is at least one example in which such feature is included or implemented, and all examples are not limited thereto.

[0047] The features of the examples described herein may be combined in various ways that will be apparent after understanding the present disclosure. In addition, although the examples described herein have various configurations, other configurations that will be apparent after understanding the present disclosure are also possible.

[0048] Figure 1 is a perspective view of a camera module to which a lens module is applied.

[0049] Figure 1 The camera module 1 shown in the figure can be a camera module for providing a video perspective of mixed reality. The camera module 1 can be installed on a head-mounted device worn by a user on the head.

[0050] According to an embodiment of the present disclosure, the camera module 1 may include a lens module 100 and an image sensor module 200. The lens module 100 according to an embodiment of the present disclosure may be a pancake type lens assembly having a low thickness.

[0051] Figure 2 yes Figure 1 An exploded perspective view of the camera module, and Figure 3 yes Figure 1 A plan view of the camera module.

[0052] The lens module 100 and the image sensor module 200 may be arranged in a first direction (Z direction).

[0053] The lens module 100 may include a plurality of lenses 110 , a lens barrel 120 , a zoom ring 130 , a lens gap adjusting member 140 , a ball member 150 , a cap 160 , and a ring member 170 .

[0054] A plurality of lenses 110 may be mounted in a lens barrel 120, and the lens barrel 120 may be accommodated in a zoom ring 130, and the focus may be adjusted by moving the zoom ring 130 in a first direction (Z direction). The zoom ring 130 may be moved in the first direction (Z direction) by a lens gap adjusting member 140 and a ball member 150. Figure 3 , the lens gap adjusting member 140 and the ball member 150 may be arranged at regular angular intervals in the circumferential direction of the lens module 100. In an embodiment, the ball member 150 may include a first ball member 150a and a second ball member 150b, and the lens gap adjusting member 140, the first ball member 150a and the second ball member 150b may be arranged at intervals of about 120 degrees in the circumferential direction of the lens module 100.

[0055] The image sensor module 200 may be disposed below the lens module 100. The image sensor module 200 may include a sensor unit 210 including an image sensor and a substrate on which the image sensor is mounted, and a board 220 to which the sensor unit 210 and the lens module 100 are coupled. The lens module 100 may be coupled to the board 220 by a fixing barrel 123, which will be described below.

[0056] Figure 4 is along Figure 1 A cross-sectional view taken along line II' of Figure 8 is along Figure 3 A cross-sectional view taken along line II-II'.

[0057] Reference Figure 4 , the plurality of lenses 110 may be arranged in the first direction (Z direction). The direction in which the plurality of lenses 110 are arranged may be the optical axis direction. Although not shown in the drawings, a spacer may be provided between the plurality of lenses 110.

[0058] The lens barrel 120 may include a movable barrel 121 and a fixed barrel 123, and the plurality of lenses 110 may be separated to be mounted on the movable barrel 121 and the fixed barrel 123. The plurality of lenses 110 may form a first lens group 110a and a second lens group 110b. The first lens group 110a may be mounted on the movable barrel 121, and the second lens group 110b may be mounted on the fixed barrel 123.

[0059] The movable lens barrel 121 can move in a first direction (Z direction) relative to the fixed lens barrel 123, while a portion of the movable lens barrel 121 is accommodated in the fixed lens barrel 123. At this time, the first lens group 110a mounted on the movable lens barrel 121 also moves in the first direction (Z direction) relative to the second lens group 110b mounted on the fixed lens barrel 123, so the gap between the first lens group 110a and the second lens group 110b can be changed, and the focus can be adjusted. At the same time, the gap between the lenses mounted in the same lens barrel can be constant.

[0060] The zoom ring 130 may have a cylindrical shape having a length in a first direction (Z direction) and may accommodate the lens barrel 120 therein. During focus adjustment, the zoom ring 130 may move in the first direction (Z direction), and the movable barrel 121 may move in conjunction with the movement of the zoom ring 130.

[0061] The zoom ring 130 may move in the first direction (Z direction) by the lens gap adjusting member 140 and the ball member 150. When external force is applied to the lens gap adjusting member 140, the ball member 150 may perform a rolling motion ascending or descending in the first direction (Z direction) due to the external force.

[0062] In an embodiment, the lens gap adjusting member 140 may be a structure operated in a step-sliding manner. When an external force is applied, the lens gap adjusting member 140 may slide in a first direction (Z direction) and may be fixed at a position where the external force is removed. Therefore, reverse movement may be restricted.

[0063] Figure 5 yes Figure 4 An enlarged exploded perspective view of area A, Figure 6 When the lens module is in the initial position Figure 4 A magnified view of region A, and Figure 7 When the lens module is in the maximum raised position Figure 4 Magnified view of area A.

[0064] In the following description, the initial position refers to the position where the lens module 100 is lowered to the maximum extent (or the position where the first bridging portion 142 described below is not bent). However, without limitation thereto, the initial position may be a specific position existing between the position where the lens module 100 is most lowered and the position where the lens module 100 is most elevated. For example, the initial position may refer to the position of the lens module 100 before the focus adjustment.

[0065] The lens gap adjusting member 140 may include a sliding portion 141 movable in a first direction (Z direction) and bridge portions 142 and 143 supporting movement of the sliding portion 141 .

[0066] In addition, the sliding portion 141 may include an operating portion 1411 disposed outside the sliding groove SG to which an external force is applied, an insertion protrusion 1413 inserted into the sliding groove SG, and a fixing protrusion 1415 fixing a position.

[0067] When an external force is applied to the sliding portion 141 (or the operating portion 1411), the sliding portion 141 may slide in the first direction (Z direction). In an embodiment, the external force may be applied in a direction perpendicular to the first direction (Z direction), and the external force may be a force by which a user pushes the operating portion 1411 toward the center of the lens module 100. For this reason, when the external force is removed, a slight gap may exist between the outer peripheral surface of the zoom ring 130 and the operating portion 1411.

[0068] The sliding portion 141 may be disposed in a sliding groove SG formed by the zoom ring 130 and the fixed barrel 123. The sliding groove SG may have a length in a first direction (Z direction) and guide movement of the sliding portion 141 in the first direction (Z direction).

[0069] The sliding groove SG may be formed by a first auxiliary groove 131 formed on the zoom ring 130 and a second auxiliary groove 1231 formed on the fixed lens barrel 123. The first auxiliary groove 131 may have a length in the first direction (Z direction) and may have an open lower end. The second auxiliary groove 1231 may have a length in the first direction (Z direction) and may have an open upper end. The sliding groove SG may be formed by aligning the open lower end of the first auxiliary groove 131 and the open upper end of the second auxiliary groove 1231 so that they face each other in the first direction (Z direction).

[0070] Meanwhile, a serration SR having a constant pitch in the longitudinal direction may be provided in the slide groove SG. The serration SR may be formed adjacent to the zoom ring 130 , ie, on inner surfaces of the first auxiliary groove 131 facing each other.

[0071] The fixing protrusion 1415 may be a portion engaged with the sawtooth portion SR. The fixing protrusion 1415 may be provided on both sides of the insertion protrusion 1413 facing the inner surface of the first auxiliary groove 131. When an external force is applied to the sliding portion 141, the fixing protrusion 1415 may be misaligned with the sawtooth portion SR, so that the sliding portion 141 may move freely up and down in the first direction (Z direction). In addition, when the external force is removed and the movement of the sliding portion 141 stops, the fixing protrusion 1415 engages with the sawtooth portion SR, thereby preventing the sliding portion 141 from moving in the opposite direction. According to an embodiment, the lens gap adjustment member 140 may be fixed to the zoom ring 130 by a combination of the sawtooth portion SR and the fixing protrusion 1415, without requiring a separate external force (e.g., electric power) to fix the lens. With this structure, the lens gap may be stably fixed.

[0072] The bridge portions 142 and 143 may be provided on one side of the sliding portion 141. The bridge portions 142 and 143 may include a first bridge portion 142 extending upward from the sliding portion 141 and a second bridge portion 143 extending downward.

[0073] The end of the first bridge portion 142 may be arranged on the movable lens barrel 121. The movable lens barrel 121 may include a placement groove 121a located on the upper side of the sliding groove SG in the first direction (Z direction), and the end of the first bridge portion 142 may be inserted and arranged in the placement groove 121a. The substantially entire second bridge portion 143 may be arranged on the fixed lens barrel 123. The fixed lens barrel 123 may include a receiving groove 123a forming the sliding groove SG below the second auxiliary groove 1231. The receiving groove 123a may include an outer wall portion 123b, and the space in which the second bridge portion 143 is accommodated may be formed by the outer wall portion 123b. The second bridge portion 143 may extend to the lower side of the second auxiliary groove 1231, and may be inserted and arranged in the receiving groove 123a surrounded by the outer wall portion 123b.

[0074] The first bridge portion 142 and the second bridge portion 143 may elastically support the movement of the sliding portion 141. Figure 6 and Figure 7 , when the sliding part 141 rises in the first direction (Z direction) from the initial position, the end of the first bridging part 142 can remain fixed to the seating groove 121a, and the portion between the end of the first bridging part 142 and the sliding part 141 can be deformed. In addition, the end of the first bridging part 142 can be bent so as not to be separated from the seating groove 121a due to the movement of the sliding part 141, etc. Preferably, the end of the first bridging part 142 can be bent twice or more, and the lower edge of the seating groove 121a can contact the area between the two bent portions. At the same time, when the sliding part 141 moves in the first direction (Z direction), the second bridging part 143 inserted into the accommodation groove 123a can move up and down in the moving direction of the sliding part 141. When the sliding part 141 moves, the second bridging part 143 can release the contact with the outer wall part 123b, and when the sliding part 141 is fixed, the second bridging part 143 can contact the outer wall part 123b. The end of the second bridge portion 143 may remain supported on the inner wall portion 123 c of the accommodation groove 123 a facing the outer wall portion 123 b .

[0075] The lens module 100 according to an embodiment of the present disclosure may include a ball member 150 that guides the movement of the zoom ring 130 in the first direction (Z direction) in conjunction with the sliding movement of the lens gap adjusting member 140 in the first direction (Z direction). The ball member 150 may include a first ball member 150a spaced about 120 degrees from the lens gap adjusting member 140 in the counterclockwise (or clockwise) direction and a second ball member 150b spaced about 120 degrees from the lens gap adjusting member 140 in the clockwise (or counterclockwise) direction.

[0076] Fig. 9When the lens module is in the initial position Figure 8 A magnified view of region B, and Fig.10 When the lens module is in the maximum raised position Figure 8 Magnified view of area B.

[0077] The first ball member 150 a and the second ball member 150 b may each include a plurality of ball members arranged in the first direction (Z direction), and may be disposed between the zoom ring 130 and the fixed lens barrel 123 .

[0078] The zoom ring 130 and the fixed lens barrel 123 may include guide grooves extending in the first direction (Z direction) on surfaces facing each other in a direction perpendicular to the first direction (Z direction). In an embodiment, the zoom ring 130 may include a guide groove on an inner peripheral surface facing the fixed lens barrel 123, and the fixed lens barrel 123 may include a guide groove opposite to the guide groove formed in the zoom ring 130 on an outer peripheral surface facing the zoom ring 130. The first ball member 150a and the second ball member 150b may be accommodated between the guide grooves formed by the zoom ring 130 and the fixed lens barrel 123. In an embodiment, the first ball member 150a may be accommodated in the first guide groove G1, and the second ball member 150b may be accommodated in the second guide groove G2.

[0079] When external force is applied to the lens gap adjusting member 140, the first ball member 150a and the second ball member 150b may support the movement of the zoom ring 130 in the first direction (Z direction) while rolling in the first direction (Z direction) within the guide groove, and move to the first position of the zoom ring 130. The zoom ring 130 may move in parallel with the first direction (Z direction) by the first ball member 150a and the second ball member 150b.

[0080] The first ball member 150a and the second ball member 150b may include a plurality of ball members having different diameters. In an embodiment, among the plurality of ball members, the outermost (uppermost and lowermost) ball members in the first direction (Z direction) may have a larger diameter than the ball members disposed therebetween. Therefore, among the plurality of ball members of the first ball member 150a and the second ball member 150b, only the outermost ball member contacts the guide groove, so that the movement of the zoom ring 130 in the first direction (Z direction) can be smoothly guided.

[0081] In the drawings, the first ball member 150a and the second ball member 150b are shown as including four ball members each, but a different number of ball members may be provided. That is, the first ball member 150a and the second ball member 150b may include a different number of ball members.

[0082] As described above, the lens module 100 according to the embodiment in the present disclosure can adjust the focus by sliding the lens gap adjustment member 140 in the first direction (Z direction). During the focus adjustment, the zoom ring 130 can also move in a direction parallel to the first direction (Z direction). In addition, it is possible to fix between the lens gap adjustment member 140 and the zoom ring 130 so that the lens gap can be stably maintained after the focus adjustment. Therefore, a constant resolution can be provided.

[0083] According to the embodiments of the present disclosure, the lens module can provide a constant resolution without being affected by the external environment. In addition, the focus can be adjusted at high speed.

[0084] An aspect of the present disclosure is to provide a lens module that structurally fixes a lens position after focus adjustment.

[0085] Another aspect of the present disclosure is to provide a lens module having a short moving distance during focus adjustment.

[0086] Although specific examples have been shown and described above, it will be apparent after understanding the present disclosure that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are understood in a descriptive sense only and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. If the described techniques are performed in a different order, and / or if the components in the described system, architecture, device or circuit are replaced or supplemented in a different manner and / or by other components or their equivalents, appropriate results can still be achieved. Therefore, the scope of the present disclosure is not limited by specific embodiments, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in the present disclosure.

Claims

1. Lens module, including: a lens barrel including a plurality of lenses arranged in a first direction; a zoom ring accommodating the lens barrel and having a length in the first direction; as well as a lens gap adjusting member coupled to the lens barrel and the zoom ring to adjust a gap between the plurality of lenses, wherein the lens barrel and the zoom ring form a sliding groove extending in the first direction to guide the movement of the lens gap adjusting member, and The sliding groove includes a sawtooth portion, and the lens gap adjusting member is coupled to the sawtooth portion to be able to slide in the first direction.

2. The lens module according to claim 1, wherein: The lens gap adjusting member comprises: a sliding portion capable of moving in the first direction within the sliding groove, and A bridge portion has one side disposed on the sliding portion and the other side disposed on the lens barrel to support movement of the sliding portion.

3. The lens module according to claim 2, wherein: The sliding portion includes a fixing protrusion coupled to the serrated portion, and When the sawtooth portion and the fixing protrusion are not aligned, the sliding portion is able to slide in the first direction, and when the fixing protrusion is engaged with the sawtooth portion, the sliding portion is fixed.

4. The lens module according to claim 2, wherein: The lens barrel further comprises: a fixed lens barrel including at least one lens, and a movable lens barrel including at least one lens and configured to move in the first direction relative to the fixed lens barrel, and Wherein, when the movable lens barrel moves, a gap between the at least one lens of the fixed lens barrel and the at least one lens of the movable lens barrel changes.

5. The lens module according to claim 4, wherein: The bridging portion comprises: a first bridge portion extending upward from the sliding portion and disposed in the movable barrel, and The second bridge portion extends downward from the sliding portion and is disposed in a receiving groove formed in the fixed lens barrel.

6. The lens module according to claim 5, wherein: The end of the first bridge portion has a plurality of bent portions.

7. The lens module according to claim 5, wherein: The movable barrel includes a seating groove in an outer peripheral surface, an end portion of the first bridge portion being inserted into the seating groove, and The movable barrel moves in the first direction via the first bridge portion.

8. The lens module according to claim 5, wherein: The second bridging portion is configured to maintain contact with at least an inner wall portion of the accommodation groove when disposed in the accommodation groove. 9 . The lens module of claim 1 , further comprising first and second ball members disposed between the lens barrel and the zoom ring to guide movement of the zoom ring in the first direction.

10. The lens module according to claim 9, wherein: The lens gap adjusting member is disposed at an angular interval from the first ball member and the second ball member in a circumferential direction of the zoom ring and the lens barrel.

11. Lens module, comprising: a lens barrel including a plurality of lenses arranged in a first direction; a zoom ring accommodating the lens barrel and having a length in the first direction; as well as a lens gap adjusting member coupled to the lens barrel and the zoom ring and configured to be movable in the first direction, The lens barrel comprises a movable lens barrel and a fixed lens barrel, the movable lens barrel comprises a first lens group, the fixed lens barrel comprises a second lens group, and The zoom ring and the movable barrel are configured to move together with the lens gap adjusting member in a direction parallel to the first direction. 12 . The lens module according to claim 11 , further comprising first and second ball members disposed between the fixed barrel and the zoom ring and each comprising a plurality of ball members disposed in the first direction.

13. The lens module according to claim 12, wherein: The lens gap adjusting member is disposed at an angular interval from the first ball member and the second ball member in a circumferential direction of the zoom ring and the lens barrel.

14. The lens module according to claim 11, wherein: The fixed lens barrel and the zoom ring form a sliding groove extending in the first direction to guide movement of the lens gap adjusting member.

15. The lens module according to claim 14, wherein: The lens gap adjusting member comprises: a sliding portion capable of moving in the first direction within the sliding groove, and A bridge portion has one side disposed in the sliding portion and the other side disposed in the lens barrel to support movement of the sliding portion.

16. The lens module according to claim 15, wherein: The sliding groove includes a sawtooth portion, the lens gap adjusting member is coupled to the sawtooth portion to be slidable in the first direction, and The sliding portion includes a fixing protrusion coupled to the serrated portion.

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