Camera module

Abstract

The camera module includes: a housing; a lens holder disposed inside the housing; a lens module disposed inside the lens holder; and a printed circuit board disposed at a lower portion of the housing and including an image sensor facing the lens module, wherein the lens module is threadedly coupled to an inner surface of the lens holder, wherein the lens holder is threadedly coupled to an inner surface of the housing, and wherein the threaded coupling area of ​​the lens module is disposed closer to an upper end of the lens module than to a lower end thereof.

Description

Technical Field

[0001] This embodiment relates to a camera module. Prior Art

[0002] Recently, ultra-small camera modules have been developed and are widely used in small electronic products such as smartphones, laptops, and game consoles.

[0003] With the popularization of automobiles, ultra-small cameras are not only widely used in small electronic products but also widely used in vehicles. For example, a black box camera that provides objective data for vehicle protection or traffic accidents, a rear monitoring camera that allows a driver to monitor the blind spot behind the vehicle through a screen to ensure safety when the car moves backward, a peripheral detection camera that can monitor the surrounding environment of the vehicle, and so on.

[0004] A camera may include: a lens; a lens holder that houses the lens; an image sensor that converts an image of an individual collected in the lens into an electrical signal; and a printed circuit board on which the image sensor is mounted. A housing that forms the external shape of the camera has a structure in which its entire area is sealed to prevent internal components from being contaminated by foreign substances including moisture.

[0005] Mechanical devices such as the housing or the lens holder may expand at high temperatures and contract at low temperatures according to temperature changes. The problem with such deformation of the mechanical device is that it changes the distance between the image sensor and the lens. Summary of the Invention Problems to be Solved by the Invention

[0006] An object of an embodiment of the present invention is to improve the structure to provide a camera module that can minimize the change in the distance between an image sensor and a lens module caused by temperature changes. Means for Solving the Problems

[0007] A camera module according to an embodiment of the present invention includes: a housing; a lens holder disposed inside the housing; a lens module disposed inside the lens holder; and a printed circuit board disposed in a lower portion of the housing and including an image sensor facing the lens module, wherein the lens module is threadedly coupled to an inner surface of the lens holder, wherein the lens holder is threadedly coupled to an inner surface of the housing, and wherein a threaded coupling region of the lens module is disposed closer to an upper end of the lens module than to a lower end thereof.

[0008] The housing may include a main body portion in a cylindrical shape and a protrusion portion projecting downward from a lower surface of the main body portion, and a coupling component may be disposed between the protrusion portion and the printed circuit board.

[0009] The housing includes a first spatial section in which the lens holder is disposed and a second spatial section disposed on the inner side of the protrusion, wherein the lower end of the lens module can be disposed in the second spatial section.

[0010] The lens holder of the housing and the housing threadedly coupled to an inner surface may be the first spatial segment.

[0011] The lens holder includes a third spatial section, the upper and lower surfaces of which are open and the lens module is coupled to the third spatial section, wherein the lens module is threadedly coupled to a coupling portion disposed on an inner surface of the third spatial section, and wherein the coupling portion is disposed adjacent to an upper end of the lens holder.

[0012] According to another embodiment, a camera module may include: a housing; a lens holder disposed on an upper portion of the housing; a lens module disposed on an inner side of the housing and the lens holder; and a printed circuit board disposed on a lower portion of the housing and including an image sensor facing the lens module, wherein the lens module is threadedly coupled to an inner surface of the lens holder, and wherein the threaded coupling area of ​​the lens module is disposed closer to an upper end of the lens module than to a lower end.

[0013] A second coupling component may be disposed between the housing and the lens holder, and the second coupling component may include an epoxy resin.

[0014] The housing includes a second protrusion that projects upward from an upper surface, wherein a third protrusion that projects outward from other areas is disposed at a lower portion of the lens holder, and wherein the second coupling member is disposed between the second protrusion and the third protrusion.

[0015] The housing includes a main body portion in a cylindrical shape and a first protrusion portion projecting downward from a lower surface of the main body portion, and a first coupling component may be disposed between the first protrusion portion and the printed circuit board.

[0016] The length of the threaded coupling area between the lens module and the lens holder in the optical axis direction can be half or less of the length of the lens module. Advantages of the Invention

[0017] In this embodiment, since the change in the distance between the image sensor and the lens module according to temperature changes is compensated by the coupling structure between the lens module and the lens holder, there is an advantage that the distance between the image sensor and the lens module can be kept constant and the resolution of the camera module can be stabilized. Brief Description of the Drawings

[0018] FIG. 1 is a perspective view of a camera module according to a first embodiment of the present invention; FIG. 2 is a plan view illustrating an upper surface of a camera module according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line A-A' of FIG. 2. FIG. 4 is an exploded perspective view of a camera module according to a first embodiment of the present invention. FIG. 5 is a perspective view of a camera module according to a second embodiment of the present invention. FIG. 6 is a plan view illustrating an upper surface of a camera module according to a second embodiment of the present invention. FIG. 7 is a cross-sectional view taken along line C-C' of FIG. 6; FIG. 8 is an exploded perspective view of a camera module according to a second embodiment of the present invention. Embodiments

[0019] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0020] However, the technical idea of the present invention is not limited to some embodiments to be described, but can be implemented in various forms, and within the scope of the technical idea of the present invention, one or more of the components can be selectively combined or replaced between the embodiments.

[0021] In addition, unless clearly defined and described, terms (including technical and scientific terms) used in the embodiments of the present invention can be interpreted as having the meanings commonly understood by those skilled in the art, and common terms such as those defined in the dictionary can be interpreted in consideration of the meanings in the context of the related technology.

[0022] Furthermore, the terminology used in this specification is for describing embodiments and is not intended to limit the invention. In this specification, unless specifically stated in a phrase, the singular form may include the plural form, and when described as "at least one (or more than one) of A, B, and C", it may include one or more of all combinations that can be combined with A, B, and C.

[0023] Furthermore, when describing the components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are merely intended to distinguish these components from other components, and the terms do not limit the nature, order, or sequence of the components.

[0024] Furthermore, when a component is described as being "connected," "coupled," or "interconnected" to another component, the component is not only directly connected, coupled, or interconnected to the other component, but may also include situations where the component is "connected," "coupled," or "interconnected" between the other components due to the other component.

[0025] Additionally, when described as being formed or configured in each component, "above" or "below," "above" or "below" means not only that the two components are in direct contact, but also that one or more other components are formed or configured between the two components. Furthermore, when expressed as "above" or "below," it can include not only the meaning based on the upstream direction of a component, but also the meaning based on the downstream direction.

[0026] The term "optical axis direction" as used below is defined as the optical axis direction of the lens module. Additionally, "optical axis direction" can correspond to "vertical direction," "z-axis direction," etc.

[0027] The camera module according to one embodiment of the present invention may be a vehicle camera module, but is not limited thereto.

[0028] The invention will now be described in more detail with reference to the accompanying drawings.

[0029] Figure 1 is a perspective view of a camera module according to a first embodiment of the present invention, Figure 2 is a plan view showing the upper surface of the camera module according to a first embodiment of the present invention, Figure 3 is a cross-sectional view taken along line A-A' of Figure 2, and Figure 4 is an exploded perspective view of the camera module according to a first embodiment of the present invention.

[0030] Referring to Figures 1 to 4, a camera module according to an embodiment of the present invention

[10] May include a housing

[0100] Lens holder

[0120] Lens module

[0140] and printed circuit boards

[0150] However, it can be implemented in addition to some of the configurations, and additional configurations are not excluded.

[0031] shell

[0100] A camera module can be formed.

[10] External shape. Shell

[0100] Can accommodate lens holder

[0120] and lens module

[0140] . For accommodating a lens holder.

[0120] and lens module

[0140] The space can be formed in the outer shell.

[0100] Inside the outer casing.

[0100] It may have a shape in which the upper and lower surfaces are open. Outer shell The cross-sectional shape of

[0100] can be formed into a rectangular shape.

[0032] shell

[0100] and lens holder

[0120] It can be formed from plastic materials.

[0033] shell

[0100] May include the main body portion

[0110] and the self-subject part

[0110] The protruding portion protruding downward from the lower surface

[0112] Main body

[0110] The outer surface can be arranged to be a protruding portion.

[0112] The outer surface protrudes further outward. Protruding portion

[0112] The cross-sectional area of ​​the main body may be smaller than that of the main body.

[0110] Cross-sectional area. Protruding portion.

[0112] The lower surface can be positioned to face the printed circuit board.

[0150] The upper surface. Protruding portion.

[0112] The side surface can be formed with the printed circuit board.

[0150] is the same plane as the side surface. Perpendicular to the camera module

[10] The protruding part defined in the direction of the optical axis.

[0112] The cross-sectional area can correspond to the printed circuit board.

[0150] is the cross-sectional region.

[0034] First Space Segment

[0102] It can be formed in the main body.

[0110] Inside the second spatial segment.

[0116] It can form on the protruding part

[0112] Inside the first spatial segment.

[0102] and the second space segment

[0116] Can be positioned vertically. First spatial segment

[0102] and the second space segment

[0116] They can communicate with each other. Second space segment The cross-sectional area of ​​

[0116] can be greater than that of the first spatial segment.

[0102] Cross-sectional area. Threads or threaded grooves may be formed in the first spatial segment.

[0102] On the inner circumferential surface. Therefore, the lens holder.

[0120] Can be threadedly coupled to the first spatial segment

[0102] Inside.

[0035] Lens holder

[0120] Can be mounted on the outer casing

[0100] Interior. Lens holder.

[0120] Can be coupled to the housing

[0100] . Lens holder

[0120] Can accommodate lens module At least a portion of

[0140] . Lens holder.

[0120] It can be called a lens barrel because it houses the lens module.

[0140] . Lens holder

[0120] The cross-section can be circular.

[0036] Lens holder At least a portion of

[0120] is disposed in the outer casing.

[0100] Inside, and another part can be arranged from the outer shell.

[0100] Protrudes upwards. Lens holder. At least a portion of

[0120] may be disposed in the main body portion.

[0110] Inside the side.

[0037] Lens holder

[0120] May include a first coupling portion

[0122] First coupling part

[0122] Can be mounted on a lens holder

[0120] At the lower portion. First coupling portion.

[0122] Can be installed in the main body.

[0110] Inside the lens holder. When a portion of the side surface of

[0120] protrudes outward, a first coupling portion can be formed.

[0122] . First coupling portion

[0122] Can be mounted as a lens holder Other areas of the side surface of

[0120] protrude further outward. First coupling portion

[0122] The cross-sectional area can be larger than that of the lens holder. Cross-sectional area of ​​the other side surface of

[0120] . First coupling portion.

[0122] It can be positioned so that it faces the main body in a direction perpendicular to the optical axis.

[0110] . First coupling portion

[0122] Can be placed in the first space segment

[0102] Internally. A threaded groove or thread may be formed in the first coupling portion.

[0122] On the outer circumferential surface. Therefore, the lens holder.

[0120] Can be threadedly coupled to the housing

[0100] .

[0038] Lens holder

[0120] It can be formed such that the upper and lower surfaces are open. Third space segment

[0124] Can be mounted on a lens holder

[0120] Inside the third space section.

[0124] May have a self-lens holder

[0120] The shape of the hole penetrating the lower surface from the upper surface. Lens holder. The cross-sectional shape of

[0120] can be formed by the shape of a ring.

[0039] Second coupling part

[0126] Can be placed in the third space section On the inner circumferential surface of

[0124] , the second coupling portion...

[0126] Can be mounted as a lens holder

[0120] The upper end is closer to the lower end than the upper end. Second coupling portion

[0126] Can be positioned in the optical axis direction by a lens holder

[0120] The upper end extends downward by a predetermined distance. Second coupling portion

[0126] It can be positioned to face the lens module in a direction perpendicular to the optical axis. At least a portion of

[0140] . Second coupling portion.

[0126] May be formed in the third space segment

[0124] Threads or threaded grooves on the inner surface. Lens holder.

[0120] The second coupling portion can be used

[0126] Threaded connection to the lens module

[0140] . Second coupling portion

[0126] Can be mounted as a lens holder

[0120] The upper end is closer to the lower end than the upper end.

[0040] Camera module

[10] Including lens module

[0140] . Lens module

[0140] Can be mounted on a lens holder

[0120] Interior. Lens module.

[0140] A camera module can be formed at the upper end.

[10] The upper surface. Constituting the lens module. The outermost lens of the lens

[0140] can be mounted as a lens holder.

[0120] Protrudes upwards. Lens module

[0140] The upper part, rather than other areas, can be self-contained by the camera module.

[10] Protrudes upwards. Lens module

[0140] The lower end may protrude below the lens holder.

[0120] The lower end makes the lens module

[0140] At least a portion may be placed in the second space segment.

[0116] Inside.

[0041] Lens module

[0140] May include a plurality of lenses. Lens module

[0140] It can be positioned to face the printed circuit board, which will be described later, in the optical axis direction.

[0150] Image sensor

[0152] Lens module

[0140] Can be used with an image sensor

[0152] Alignment. Lens module. The optical axis of

[0140] can be aligned with the image sensor.

[0152] The optical axes coincide. An infrared filter (IR filter, not shown) can be placed in the lens module.

[0140] with image sensor

[0152] between.

[0042] Third coupling part

[0142] Can be installed in lens module

[0140] The outer surface facing the second coupling portion

[0126] in the region. Third coupling portion.

[0142] It may have a shape in which the lens module

[0140] A portion of the side surface protrudes outward perpendicular to the optical axis. Third coupling portion

[0142] Can be installed as a lens module

[0140] The upper end is closer to the lower end than the upper end. Third coupling portion

[0142] Can be positioned facing the second coupling portion

[0126] . Threads or threaded grooves may be formed in the third coupling portion.

[0142] On the outer surface. Therefore, the lens holder

[0120] and lens module

[0140] The second coupling portion can be used

[0126] and the third coupling portion

[0142] Threaded coupling is performed. In summary, the lens module...

[0140] The upper end can be threadedly coupled to the lens holder.

[0120] Inside.

[0043] Meanwhile, relative to the optical axis direction, the lens holder

[0120] with lens module The length of the threaded coupling area between

[0140] can be formed as a lens module.

[0140] is half or less of its length.

[0044] Printed Circuit Board

[0150] Can be mounted on the outer casing

[0100] At the lower portion. Printed circuit board.

[0150] It can be formed in the shape of a plate and is used to drive a camera module.

[10] At least one electronic component may be mounted on a printed circuit board.

[0150] On the outer surface. For example, an image sensor.

[0152] Can be mounted on a printed circuit board

[0150] On the upper surface. Image sensor

[0152] It can be positioned to face the lens module in the optical axis direction.

[0140] . Image sensor

[0152] The lens module can be used

[0140] The image of the incident individual is converted into an electrical signal. Image sensor

[0152] Can be placed in the second space segment

[0116] Inside.

[0045] Printed Circuit Board

[0150] Can be coupled to the housing

[0100] . Prominent part

[0112] The lower end can be coupled to a printed circuit board.

[0150] Above surface. Coupling component.

[0160] Can be placed on protruding parts

[0112] With printed circuit board

[0150] Between. Coupling components

[0160] May include epoxy resin or rubber. For example, coupling components

[0160] Can be applied to the outer casing

[0100] With printed circuit board

[0150] Epoxy resin between

[0046] Coupling components

[0160] Not only can the protruding part

[0112] and printed circuit board

[0150] They are coupled to each other, and also prevent the introduction of foreign matter into the second space segment.

[0116] In the middle. Coupling component

[0160] It can be formed in a ring shape. Coupling component

[0160] The cross-sectional shape may correspond to the protruding portion.

[0112] Cross-sectional shape. Figure 3 illustrates the cross-sectional shape of the image sensor. Outside the area of ​​

[0152] , coupling components

[0160] Widely installed on printed circuit boards

[0150] On the above surface, but not limited thereto, and coupling components

[0160] It can be installed only on the protruding part.

[0112] Printed circuit board at the lower end

[0150] Above.

[0047] Lens module

[0140] with image sensor

[0152] The distance between them can be achieved by coupling components.

[0160] To adjust. Lens module

[0140] with image sensor The distance between

[0152] in the optical axis direction can be adjusted by adjusting the coupling component.

[0160] is achieved by the thickness of each region.

[0048] At the same time, under high temperature, the outer shell

[0110] or coupling component

[0160] Due to the outer casing

[0100] or coupling component

[0160] The material properties cause it to expand. Therefore, the image sensor

[0152] with lens module The distance between

[0140] can be increased. However, in this embodiment, the lens module

[0140] The upper end can be equipped with a lens module

[0140] with lens holder

[0120] The threaded coupling structure between them is fixed, and the lens module

[0140] The lower end can protrude downwards by expanding at high temperature. Therefore, the lens module

[0240] With image sensor

[0252] The distance between them can be further determined by the lens module.

[0240] expands and decreases, similar to the lens module.

[0240] with image sensor

[0252] The distance between them has been separated by the outer shell.

[0100] or coupling component

[0160] The same number of expansions and separations.

[0049] Additionally, at low temperatures, the outer casing

[0100] or coupling component

[0160] It can be retracted. Therefore, the image sensor

[0152] with lens module

[0140] The distance between them can be reduced. However, in this embodiment, since the lower end is connected by a lens module

[0140] The contraction moves upward, and the lens module

[0140] The upper end is connected by a lens module

[0140] with lens holder

[0120] is fixed by a threaded coupling structure between them, therefore the lens module

[0140] with image sensor

[0152] The distance between them can be increased again, similar to the lens module.

[0140] with image sensor

[0152] The distance between them has been determined by the outer shell.

[0100] or coupling component

[0160] The contraction is achieved by the lens module

[0140] The contraction decreases by the same amount.

[0050] In summary, due to the lens module

[0140] with image sensor

[0152] The change in distance between them is achieved through the lens module.

[0140] The contraction and expansion are achieved by the outer shell

[0100] Lens holder

[0120] and coupling components

[0160] The expansion and contraction at high or low temperatures are compensated for, thus minimizing the image sensor's performance due to temperature changes.

[0152] with lens module The change in distance between

[0140] and the camera module The resolution of

[10] can be stabilized.

[0051] Figure 5 is a perspective view of a camera module according to a second embodiment of the present invention, Figure 6 is a plan view illustrating the upper surface of the camera module according to a second embodiment of the present invention, Figure 7 is a cross-sectional view taken along line C-C' of Figure 6, and Figure 8 is an exploded perspective view of a camera module according to a second embodiment of the present invention.

[0052] In this embodiment of the invention, other parts are the same as those in the first embodiment, except for the difference in the housing structure of the camera module. Therefore, in the following description, only the characteristic parts of this embodiment will be described, and for the remaining parts, reference will be made to the description of the first embodiment.

[0053] Referring to Figures 5 to 8, a camera module according to an embodiment of the present invention

[20] May include a housing

[0200] Lens holder

[0220] Lens module

[0240] and printed circuit board

[0250] However, it can be implemented in addition to some of the configurations, and additional configurations are not excluded.

[0054] shell

[0200] A camera module can be formed.

[20] External shape. Outer shell.

[0200] Can accommodate lens module

[0240] . For accommodating the lens module.

[0240] The space can be formed in the outer shell.

[0200] Inside the outer casing.

[0200] It may have a shape in which the upper and lower surfaces are open. Outer shell The cross-sectional shape of

[0200] can be formed in the shape of a rectangle.

[0055] shell

[0200] and lens holder

[0220] It can be formed from plastic materials.

[0056] shell

[0200] May include the main body portion

[0210] Self-subject part

[0210] The first protruding portion protruding downward from the lower surface

[0212] and the self-subject part

[0210] The second protruding part protruding upward from the upper surface

[0216] Main body

[0210] The outer surface may be positioned to protrude from the first portion.

[0212] and the second protruding portion

[0216] The outer surface protrudes further outward. First protruding portion

[0212] or the second protruding portion

[0216] The cross-sectional area of ​​the

[0216] part may be smaller than that of the main body.

[0210] Cross-sectional area.

[0057] First prominent part

[0212] The lower surface can be arranged to face the printed circuit board.

[0250] Above surface. First protruding portion.

[0212] The side surface can be formed with the printed circuit board.

[0250] is the same plane as the side surface. Perpendicular to the camera module

[20] The first protruding part defined in the direction of the optical axis.

[0212] The cross-sectional area can correspond to the printed circuit board.

[0250] is the cross-sectional region.

[0058] Second prominent part

[0216] The main body

[0210] The second protruding portion is formed by one part of the upper surface protruding upwards.

[0216] It may have a cross-section in the shape of a ring. Second protruding portion

[0216] The upper surface can be positioned to face the lens holder in the optical axis direction.

[0220] Lower surface. Second protruding portion.

[0216] The upper surface can be coupled by the second coupling member, which will be described later.

[0270] Coupled to lens holder

[0220] The lower surface.

[0059] First Space Segment

[0202] It can be formed in the main body.

[0210] and the second protruding portion

[0216] Inside the second spatial section.

[0217] It can be formed in the first protruding part

[0212] Inside the first spatial segment.

[0202] and the second space segment

[0217] Can be positioned vertically. First spatial segment

[0202] and the second space segment

[0217] They can communicate with each other. Second space segment

[0217] The cross-sectional area can be formed to be larger than the first spatial segment.

[0202] Cross-sectional area.

[0060] Lens holder

[0220] Can be installed in the outer casing

[0200] At the upper part. Lens holder.

[0220] Can be coupled to the housing

[0200] Upper surface. Lens holder.

[0220] Can accommodate lens module

[0240] At least a portion of the lens holder.

[0220] It can be called a lens barrel because it houses the lens module.

[0240] . Lens holder

[0220] The cross-section can be circular.

[0061] Lens holder

[0220] Its upper and lower surfaces can be open. It accommodates a lens module.

[0240] At least a portion of the third space segment

[0224] Can be mounted on a lens holder

[0220] Inside the third space segment.

[0224] May have a self-lens holder

[0220] The shape of the hole that penetrates the lower surface from the upper surface.

[0062] First coupling part

[0226] Can be placed in the third space section

[0224] On the inner circumferential surface of the first coupling portion.

[0226] Can be mounted as a lens holder

[0220] The upper end is closer to its lower end than the lower end. First coupling portion

[0226] Can be installed as a self-lens holder

[0220] The upper end extends downwards by a predetermined distance in the optical axis direction. First coupling portion

[0226] May include those formed in the third space segment

[0224] Threads or threaded grooves on the inner surface. Lens module.

[0240] The first coupling portion can be used

[0226] Threaded connection to lens holder

[0220] Inside.

[0063] Meanwhile, lens holder

[0220] with lens module The length of the threaded coupling area between

[0240] relative to the optical axis direction can be formed as a lens module.

[0240] is half or less of its length.

[0064] For use with housing

[0200] The third protruding part of the coupling

[0222] Can be mounted on a lens holder

[0220] At the lower part. Third protruding part.

[0222] It may have a shape in which the lens holder is located.

[0220] A portion of the side surface protrudes outward. Third protruding portion

[0222] A lens holder can be formed.

[0220] Lower end. Third protruding part.

[0222] The outer surface may be disposed outside the outer surface, the outer surface being formed in the lens holder.

[0220] In another area. The third protruding part

[0222] A portion of the lower surface may be positioned to face the second protrusion in the optical axis direction.

[0216] Above surface. Third protruding portion.

[0222] The outer surface may be disposed on the second protrusion.

[0216] On the inner side rather than on its outer surface, but not limited thereto, and the third protruding part

[0222] Outer surface and main protruding part

[0216] The outer surfaces can form the same plane.

[0065] Second coupling component

[0270] Can be placed in the second protruding part

[0216] The upper surface and the third protrusion

[0222] Between the lower surfaces.

[0066] Camera module

[20] May include a lens module

[0240] . Lens module At least a portion of

[0240] may be disposed in the lens holder.

[0220] Inside the lens module.

[0240] A camera module can be formed at the upper end.

[20] Above surface. Lens module

[0240] The upper part, rather than other areas, can be self-contained by the camera module.

[20] Protrudes upwards. Lens module

[0240] Lower end comparable lens holder

[0220] Lower end and main body

[0210] The lower surface protrudes further downward, making the lens module

[0240] At least a portion of it may be placed in the second space segment.

[0217] Interior.

[0067] Lens module

[0240] May include a plurality of lenses. Lens module

[0240] It can be positioned to face the printed circuit board, which will be described later, in the optical axis direction.

[0250] Image sensor

[0252] . Lens module

[0240] Can be used with an image sensor

[0252] Alignment. Lens module. The optical axis of

[0240] can be aligned with the image sensor.

[0252] The optical axes coincide. An infrared filter (infrared filter, not shown) can be mounted on the lens module.

[0240] With image sensor

[0252] between.

[0068] Second coupling part

[0242] Can be installed in lens module

[0240] The first coupling portion

[0226] In the region of the outer surface of the second coupling portion.

[0242] It may have a shape in which the lens module

[0240] A portion of the side surface protrudes outward perpendicular to the optical axis. Second coupling portion

[0242] Can be installed as a lens module

[0240] The upper end is closer to the lower end. Second coupling portion

[0242] It can be positioned facing the first coupling portion in a direction perpendicular to the optical axis.

[0226] . Threads or threaded grooves may be formed in the second coupling portion.

[0242] On the outer surface. Therefore, the lens holder

[0220] and lens module

[0240] The first coupling portion can be used

[0226] and the second coupling portion

[0242] Threaded coupling is performed. In summary, the lens module...

[0240] The upper end can be threadedly coupled to the lens holder.

[0220] .

[0069] Printed Circuit Board

[0250] Can be mounted on the outer casing

[0200] In the lower portion. Printed circuit board.

[0250] It can be formed in the shape of a plate and used to drive a camera module.

[20] At least one electronic component may be mounted on a printed circuit board.

[0250] On the outer surface. For example, an image sensor.

[0252] Can be mounted on a printed circuit board

[0250] On the upper surface. Image sensor

[0252] It can be positioned to face the lens module in the optical axis direction.

[0240] . Image sensor

[0252] The lens module can be used

[0240] The image of the incident individual is converted into an electrical signal. Image sensor

[0252] Can be placed in the second space segment

[0217] in.

[0070] Printed Circuit Board

[0250] Can be coupled to the housing

[0200] . First protruding part

[0212] The lower end can be coupled to a printed circuit board.

[0250] Above surface. First coupling component.

[0260] Can be placed on protruding parts

[0212] With printed circuit board

[0250] Between. First coupling component.

[0260] May include epoxy resin or rubber. For example, the first coupling component

[0260] Can be applied to the outer casing

[0200] With printed circuit board

[0250] Epoxy resin between.

[0071] First coupling component

[0260] Not only can the first protruding part

[0212] and printed circuit board

[0250] They are coupled to each other, and also prevent foreign matter from being introduced into the second space segment.

[0217] In the middle. First coupling component.

[0260] The cross-section can be formed in a ring shape. First coupling component The cross-sectional shape of

[0260] may correspond to the first protruding portion.

[0212] Cross-sectional shape. In FIG7, although illustrated, in addition to the placement of the image sensor Outside the area of ​​

[0252] , the first coupling component

[0260] Widely installed on printed circuit boards

[0250] On the above surface, but not limited thereto, and the first coupling component

[0260] It can be installed only on the side facing the first protrusion.

[0212] Printed circuit board at the lower end

[0250] Above.

[0072] Lens module

[0240] with image sensor

[0252] The distance between them can be achieved by the first coupling component

[0260] To adjust. Lens module

[0240] with image sensor The distance between

[0252] in the optical axis direction can be adjusted by adjusting the first coupling component.

[0260] The thickness of each region is used to achieve this.

[0073] Second coupling component

[0270] Can be mounted on a lens holder

[0220] with the outer casing

[0200] Between. Second coupling component.

[0270] Can be placed in the second protruding part

[0216] The upper surface and the third protrusion

[0222] Between the lower surfaces. Second coupling component.

[0270] May include epoxy resin or rubber. For example, the second coupling component

[0260] May be applied to the second protrusion.

[0216] The upper surface and the third protrusion

[0222] Epoxy resin between the lower surfaces.

[0074] Second coupling component

[0270] Not only can the lens holder be secured

[0220] and outer casing

[0200] They are coupled to each other, and also prevent foreign substances from being introduced into the casing.

[0200] In the second coupling component.

[0270] The cross-section can be formed in an annular shape.

[0075] Lens module

[0240] with image sensor

[0252] The distance between them can be achieved by the second coupling component.

[0270] To adjust. Lens module

[0240] with image sensor The distance between

[0252] in the optical axis direction can be adjusted by adjusting the second coupling component.

[0270] The thickness of each region is used to achieve this.

[0076] Meanwhile, in one embodiment of the present invention, a first coupling component is included.

[0260] and the second coupling component

[0270] A plurality of coupling components are disposed in the camera module.

[20] but camera module

[20] It may include only one of them and exclude the other.

[0077] At the same time, under high temperature, the outer shell

[0200] Lens holder

[0220] and coupling components

[0260] and

[0270] Due to the outer casing

[0200] Lens holder

[0220] and coupling components

[0260] and

[0270] The material properties cause it to expand. Therefore, the image sensor

[0252] with lens module

[0240] The distance between them can be increased. However, in this embodiment of the invention, the lens module

[0240] The upper end can be equipped with a lens module

[0240] with lens holder

[0220] is fixed by a threaded coupling structure between them, and the lens module

[0240] The lower end can expand downwards by high temperature. Therefore, the lens module

[0240] with image sensor

[0252] The distance between them can be determined by the lens module.

[0240] expands and then closes again, similar to the lens module.

[0240] with image sensor

[0252] The distance between them has been secured by the lens holder

[0220] and coupling components

[0260] and

[0270] The same number of expansions and separations.

[0078] Additionally, at low temperatures, the outer casing

[0200] Lens holder

[0220] and coupling components

[0260] and

[0270] It is retractable. However, in this embodiment of the invention, the image sensor

[0252] with lens module

[0240] The distance between them can be reduced. However, in this embodiment of the invention, due to the lens module

[0240] The upper end can be equipped with a lens module

[0240] with lens holder

[0220] is fixed by a threaded coupling structure between them, and the lens module

[0240] The lower end is due to the lens module

[0240] contracts and moves upward, therefore the lens module

[0240] with image sensor

[0252] The distance between them can be increased again, similar to the lens module.

[0240] with image sensor

[0252] The distance between them has been separated by the outer shell.

[0200] Lens holder

[0220] and coupling components

[0260] and

[0270] The contraction and reduction are the same amount.

[0079] In short, due to the outer shell

[0200] Lens holder

[0220] and coupling components

[0260] and

[0270] Lens module caused by contraction and expansion at high and low temperatures

[0240] with image sensor

[0252] The change in distance between them is achieved through the lens module.

[0240] The contraction and expansion are compensated for, thus it is possible to minimize the image sensor's performance due to temperature changes.

[0252] with lens module The change in distance between

[0240] and the camera module The resolution of

[20] can be stabilized.

[0080] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that the present invention may be implemented in other specific forms without altering the spirit or essential features of the invention. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects.

[0081] 10: Camera Module 20: Camera Module 100: Outer shell 102: First Space Segment 110: Main body 112: Highlighted Part 116: Second Space Segment 120: Lens Holder 122: First coupling part 124: Third Space Segment 126: Second coupling part 140: Lens Module 142: Third coupling part 150: Printed Circuit Board 152: Image Sensor 160: Coupling component 200: Outer shell 202: First Space Segment 210: Main body 212: First Protruding Part 216: Second Prominent Part 217: Second Space Segment 220: Lens Holder 222: The Third Prominent Part 224: Third Space Segment 226: First coupling part 240: Lens Module 242: Second coupling part 250: Printed Circuit Board 252: Image Sensor 260: First coupling component 270: Second coupling component A-A': line C-C': line

Claims

1. A camera module comprising: a housing; a lens holder disposed within the housing; a lens module disposed within the lens holder; and a printed circuit board disposed at a lower portion of the housing and including an image sensor facing the lens module, wherein the lens module is threadedly coupled to an inner surface of the lens holder; wherein the lens holder is threadedly coupled to an inner surface of the housing; wherein the threaded coupling area of ​​the lens module is positioned closer to an upper end of the lens module than to a lower end; wherein the housing includes a main body portion in a cylindrical shape and A protruding portion extending downward from the lower surface of the main body; wherein a coupling member is disposed between the protruding portion and the printed circuit board; wherein when the housing or the coupling member expands, the upper end of the lens module can be fixed by a threaded coupling area between the lens module and the lens holder, and the lower end of the lens module expands to approach the printed circuit board; and wherein when the housing or the coupling member contracts, the upper end of the lens module can be fixed by a threaded coupling area between the lens module and the lens holder, and the lower end of the lens module contracts to move away from the printed circuit board.

2. The camera module of claim 1, wherein the housing includes a first spatial section in which the lens holder is disposed and a second spatial section disposed inside the protrusion, and wherein a lower end of the lens module is disposed in the second spatial section.

3. The camera module of claim 2, wherein the lens holder of the housing and the housing are threadedly coupled to an inner surface as the first spatial segment.

4. The camera module of any one of claims 1 to 3, wherein the lens holder includes a third spatial section, the upper and lower surfaces of the third spatial section are open and the lens module is coupled to the third spatial section, wherein the lens module is threadedly coupled to a coupling portion disposed on an inner surface of the third spatial section, and wherein the coupling portion is disposed adjacent to an upper end of the lens holder.

5. A camera module comprising: a housing; a lens holder disposed on an upper portion of the housing; a lens module disposed inside the housing and the lens holder; and a printed circuit board disposed on a lower portion of the housing and including an image sensor facing the lens module, wherein the lens module is threadedly coupled to an inner surface of the lens holder; wherein the threaded coupling area of ​​the lens module is disposed closer to an upper end of the lens module than to a lower end of the lens module; wherein the housing includes a main body portion in a cylindrical shape and a first protrusion portion projecting downward from a lower surface of the main body portion; One of the first coupling components is disposed between the first protrusion and the printed circuit board; One of the second coupling components is disposed between the housing and the lens holder; wherein when the housing, the first coupling component, or the second coupling component expands, the upper end of the lens module can be fixed by the threaded coupling area between the lens module and the lens holder, and the lower end of the lens module expands to approach the printed circuit board; and wherein when the housing, the first coupling component, or the second coupling component contracts, the upper end of the lens module can be fixed by the threaded coupling area between the lens module and the lens holder, and the lower end of the lens module contracts to move away from the printed circuit board.

6. The camera module of claim 5, wherein the first and second coupling components comprise an epoxy resin.

7. The camera module of claim 6, wherein the housing includes a second protrusion projecting upward from an upper surface, wherein a third protrusion projecting outward from another area is disposed at a lower portion of the lens holder, and wherein the second coupling member is disposed between the second protrusion and the third protrusion.

8. The camera module of claim 1 or 5, wherein the length of the threaded coupling area of ​​the lens module and the lens holder relative to the optical axis is half or less of the length of the lens module.

Images