CN117849982B - Periscope type camera shooting module and electronic equipment - Google Patents

Abstract

The application discloses a periscope type camera shooting module and electronic equipment, wherein the camera shooting module comprises: a first lens, the outer Zhou Bitu of which is provided with a first lug part; the bracket is provided with a first accommodating groove, the first accommodating groove is provided with a first opening and a second opening, the first opening faces inwards and is opposite to the peripheral wall of the first lens, the second opening faces upwards so as to allow the first lug to be inserted and matched in the first accommodating groove through the second opening, and an adhesive is filled between the surface of the first lug and the inner wall of the first accommodating groove; the first accommodating groove comprises a second base part and a second extension part connected with the second base part, the second base part extends up and down, the second extension part extends in the optical axis direction of the first lens, and a second step is formed at the connection part of the second base part and the second extension part. The periscope type camera shooting module is applied to the electronic equipment.

Description

Periscope type camera shooting module and electronic equipment

Technical Field

The application relates to a camera module, in particular to a periscope camera module, and also relates to electronic equipment applying the periscope camera module.

Background

In recent years, electronic devices such as smartphones, tablet computers, notebook computers, smartwatches, etc. are increasingly being developed toward miniaturization and high performance, and under such development trend, more stringent requirements are being put on the size and imaging capability of an imaging module, which is one of the standard configurations of electronic devices, so that the electronic device industry is not pursuing the compact and integrated functions of the imaging module, such as auto-focusing, zooming and anti-shake functions, and telephoto functions.

The conventional camera module generally includes a lens and a photosensitive chip, and the lens is located on a photosensitive path of the photosensitive chip, so that the lens converges light on the photosensitive chip to form an image. In order to realize the functions of automatic focusing, zooming and anti-shake of the camera module, the existing camera module generally arranges a photosensitive chip or part of lenses on a movable and/or deflectable carrier, and drives the lenses or the photosensitive chip to move and/or deflect by moving and/or deflecting the carrier so as to adjust the relative positions of the lenses and the photosensitive chip.

In order to realize the telephoto function of the camera module, the existing camera module also introduces a tele lens. Because the long-focus lens has a longer total optical length, the height of the camera module with the long-focus lens is too high according to the traditional camera module assembly mode, and the camera module is difficult to be put into electronic equipment with thinner thickness. At present, an optical system of a long-focus camera module is folded by arranging a light steering element such as a prism or a reflecting mirror in the camera module in the market to form a periscope camera module, so that the periscope camera module can be transversely placed in electronic equipment such as a mobile phone, and the problem that the height of the long-focus camera module is too high due to the fact that the total optical length of a long-focus lens is too long is solved.

Taking periscope type camera modules as an example, a lens is usually adhered to a fixed base or a movable carrier by adopting an adhesive; specifically, the outer peripheral surface of the lens is provided with an ear extending outwards, and the side wall of the fixed base or the movable carrier is provided with a containing groove extending vertically. When the lens is assembled, firstly, the accommodating groove is used for drawing glue, then the lens is placed on the fixed base or the movable carrier, the lug is inserted and matched in the accommodating groove, and after the adhesive is solidified, the lens is fixed on the fixed base or the movable carrier.

Along with the development of large image plane and large aperture camera modules, the size of a lens matched with a photosensitive chip and an aperture diaphragm is increased, and the optical performance of some lenses is improved by integrating glass lenses, so that the lens is heavier and heavier. In view of the requirement of the reliability of the lens assembly in the camera module, it is often necessary to supplement an adhesive between the outer peripheral wall of the lens and the surface of the fixed base or the movable carrier in addition to filling the adhesive in the accommodating groove. However, the adhesive tends to shrink and cause a risk of variation in curing, and the adhesive attached to the outer peripheral wall of the lens tends to deform the lens mounting hole in the lens during curing, which results in deformation of the peripheral edge of the lens mounted in the lens mounting hole due to extrusion, and eventually affects the optical imaging performance of the optical system. The more the amount of adhesive adhered to the outer peripheral wall of the lens, the more the adhesive curing variation has a more pronounced effect on deformation of the lens mounting hole in the lens, i.e., on the optical performance of the optical system.

Disclosure of Invention

The periscope type camera module has the advantages of being high in assembly reliability, good in optical performance and small in size.

Another advantage of the present application is to provide an electronic device to which the periscope type camera module described above is applied.

To achieve at least one of the above or other advantages and objects, the present application provides a periscope type camera module, comprising:

a first lens, the outer Zhou Bitu of which is provided with a first lug part;

The bracket is provided with a first accommodating groove, the first accommodating groove is provided with a first opening and a second opening, the first opening faces inwards and is opposite to the outer peripheral wall of the first lens, the second opening faces upwards so as to allow the first lug to be inserted and matched in the first accommodating groove through the second opening, and an adhesive is filled between the surface of the first lug and the inner wall of the first accommodating groove;

And the first accommodating groove comprises a second base part and a second extension part connected with the second base part, the second base part extends up and down, and the second extension part extends along the optical axis direction of the first lens so as to form a second step at the connection part of the second base part and the second extension part.

The periscope type camera module provided by the application has the advantages that the first accommodating groove is arranged into the structure of the second base part and the second extension part, the second extension part can increase the adhesion surface area of the adhesive, so that the first lug part is firmly adhered to the first accommodating groove, the reliability of the first lens and the bracket assembly is improved, the reliability requirement of the periscope type camera module on the assembly of the first lens and the bracket can be nearly or even completely met, the adhesive supplementing between the peripheral wall of the first lens and the surface of the bracket is further allowed to be reduced or even avoided, most or even all of the adhesive is concentrated in the first accommodating groove far away from the peripheral wall of the first lens, the risk of deformation of a lens mounting hole of the first lens caused by the solidification of the adhesive can be reduced or even avoided, and the periscope type camera module can keep good optical performance. And, this second extension extends along the optical axis direction of first camera lens, but not along the extending direction of first basal portion, can avoid periscope formula camera module too wide, does benefit to periscope formula camera module's miniaturized design.

In some embodiments of the present application, the second step has a downward facing second step surface, the second step surface being opposite to the local surface of the first ear, and the second step surface, in addition to being capable of providing an adhesive attachment surface, is capable of physically blocking upward movement of the first ear, so as to further reduce the risk of upward disengagement of the first ear from the first receiving groove, and make the reliability of the first lens and bracket assembly higher.

In some embodiments of the application, the second extension engages a lower end of the second base. Like this, when the assembly, fill the adhesive in first storage tank earlier, assemble first camera lens in the support from top to bottom again, make first ear get into first storage tank through the second opening simultaneously, first ear moves down along the second basal portion earlier, follow the second extension and remove afterwards, be convenient for control the removal orbit of first ear in first storage tank when the assembly, and the first camera lens is assembled in place after, the adhesive is mainly distributed in the bottom of first storage tank because of gravity, can encapsulate first ear, make first ear and first storage tank bond more firmly, thereby promote the reliability of first camera lens and support assembly.

In some embodiments of the present application, a distance between the second step surface and an upper edge of the first accommodating groove is h1, and a mass of the first lens is G, where h1 and G satisfy the following relation: g/h1 is less than or equal to 0.4G/mm and less than or equal to 0.6G/mm, so that the physical blocking effect of the second step on the upward movement of the first lug part is better.

In some embodiments of the present application, in the optical axis direction of the first lens, the width of the first ear is w1, and the width of the second step surface is w2, and then w1 and w2 satisfy the following relation: w1/w2 is more than or equal to 0.8 and less than or equal to 1.2, so that the superposition area of the second step surface and the surface of the first lug is larger, and the physical blocking effect of the second step surface on the upward movement of the first lug is better.

In other embodiments of the application, the second step has an outwardly facing fourth step surface that opposes a partial surface of the first ear. The fourth step surface can provide an adhesion surface of an adhesive, and more importantly, the fourth step surface can physically block the first lug from moving inwards, so that the optical axis of the first lens is not easy to deviate from a preset position, and the optical performance of the periscope type camera module is better.

In some embodiments of the present application, the first ear portion includes a first base portion and a first extension portion, the first base portion extends outward from an outer peripheral wall of the first lens, and the first extension portion is protruding at least along an extending direction of the optical axis and is located at a peripheral edge of the first base portion, so that a surface area of the first ear portion can be increased through the first extension portion, and an attachment surface area of an adhesive can be increased, so that the first ear portion and the first accommodating groove are adhered more firmly, reliability of assembling the first lens and the bracket is improved, the first base portion and the first extension portion form a first step at a joint, the first step has a first step surface, and the first step surface is opposite to the fourth step surface, so that the first ear portion can form a first step surface matched with the fourth step surface.

In some embodiments of the present application, the first extension portion is engaged with the outer side of the first base portion, and/or the second extension portion is engaged with the outer side of the second base portion, so that the mechanical strength and the workability of the first ear portion and/or the bracket at the first receiving groove can be ensured, and the wall thickness of the bracket at the first receiving groove can be reduced, thereby reducing the width dimension of the periscope type camera module.

In some embodiments of the present application, the depth of the first accommodating groove is H2, and the height of the bracket is H, so that H2 and H satisfy the following relationship: H2/H is more than or equal to 0.25 and less than or equal to 0.5; in the extending direction of the optical axis, the width of the first accommodating groove is W, and the length of the first lens is L, so that W and L satisfy the following relation: W/L is more than or equal to 0.2 and less than or equal to 0.4, thereby having the bonding firmness of the first lens and the bracket and the mechanical strength of the bracket.

In some embodiments of the application, the bracket is provided with a concave portion, the first lens is inserted into the concave portion from top to bottom, and the first accommodating groove is arranged on the side wall of the concave portion, so that the periscope type camera module can be more compact in structure.

In some embodiments of the application, a third step is provided on a side wall of the bracket, the third step has a third step surface located below the first accommodating groove, and a gap is provided between the third step and an outer peripheral wall of the first lens. Thus, even if too much adhesive is filled in the first accommodating groove, the excessive adhesive overflows from the first accommodating groove, flows along the third step surface firstly, flows to the bottom of the bracket through the gap between the third step and the outer peripheral surface of the first lens, and can ensure that the adhesive overflowed from the first accommodating groove is not easy to adhere to the outer peripheral surface of the first lens, thereby reducing or even avoiding the risk of deformation of the first lens mounting hole caused by the solidification of the adhesive on the outer peripheral surface of the first lens.

In some embodiments of the application, further comprising: a carrier movably constrained to the support; the second lens is assembled on the carrier, the second lens is positioned on one side of the first lens in the optical axis direction, and the second lens is lighter than the first lens, so that the second lens can be driven by the carrier to move to realize the functions of automatic focusing, zooming and anti-shake of the camera module, and because the second lens is lighter than the first lens, the second lens is also designed to be shorter than the first lens in axial length, so that the requirement on the bonding reliability of the second lens and the carrier is lower, and the second lens and the carrier can adopt the bonding mode of the first lens and the bracket and also can adopt the existing bonding mode.

Further, in some embodiments of the present application, a second ear portion extends outward from an outer peripheral wall of the second lens, the carrier is provided with a second accommodating groove into which the second ear portion is inserted, the second accommodating groove extends up and down, and an adhesive is filled between a surface of the second ear portion and an inner wall of the second accommodating groove; and the optical system further comprises an aperture diaphragm, wherein the aperture diaphragm is positioned on the light incident side of the first lens in the optical axis direction, and the second lens is positioned on the light emergent side of the first lens in the optical axis direction. Although the adhesive that the second ear portion and the second accommodating groove can provide is smaller in adhesion area, it will be appreciated that the processing difficulty and the assembly difficulty of the second lens and the carrier are also lower, and by designing the second lens to be further away from the aperture stop, the sensitivity of the second lens in the whole optical system is reduced, even if the adhesive needs to be filled between the outer peripheral surface of the second lens and the surface of the carrier based on the reliability of the assembly of the second lens on the carrier, the influence of deformation of the lens mounting hole of the second lens caused by the curing variation of the adhesive has smaller influence on the optical performance of the camera module, so that the comprehensive performance of the periscope type camera module is better.

According to another aspect of the application, the application further provides electronic equipment, and the periscope type camera module is integrated.

Further objects and advantages of the present application will become fully apparent from the following description and the accompanying drawings.

These and other objects, features and advantages of the present application will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims.

Drawings

Fig. 1 is a schematic perspective view of some exemplary periscope type camera modules of the present application.

Fig. 2A is a top view of some exemplary periscope type camera modules of the present application.

Fig. 2B is an enlarged schematic view of the structure of the part i in fig. 2A.

Fig. 3 is a cross-sectional view of some exemplary periscope camera modules of the present application.

Fig. 4A is a schematic perspective view of some exemplary first receiving grooves according to the present application.

Fig. 4B is an enlarged schematic view of the structure of the part ii in fig. 4A.

Fig. 5 is a front view of some exemplary first lenses of the application.

Fig. 6 is a rear view of another exemplary first lens barrel of the present application.

Fig. 7 is a schematic perspective view of some other exemplary first lenses according to the application.

Fig. 8 is a schematic perspective view of another exemplary periscope type camera module of the present application.

Fig. 9 is a top view of still other exemplary periscope type camera modules of the present application.

Fig. 10A is a cross-sectional view of the structure of fig. 9 in the C-C direction.

Fig. 10B is an enlarged schematic view of the structure of the part iii in fig. 10A.

Fig. 11 is a sectional view of the structure of fig. 9 in the direction D-D.

Fig. 12A is a schematic perspective view of another exemplary first receiving groove according to the present application.

Fig. 12B is an enlarged schematic view of the structure of the part iv in fig. 12A.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the application. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the application defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the application.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present application.

In the present application, the terms "a" and "an" in the claims and specification should be understood as "one or more", i.e. in one embodiment the number of one element may be one, while in another embodiment the number of the element may be plural. The terms "a" and "an" are not to be construed as unique or singular, and the term "the" and "the" are not to be construed as limiting the amount of the element unless the amount of the element is specifically indicated as being only one in the disclosure of the present application.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through a medium. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Illustrative embodiments

In some embodiments of the present application, an electronic device is provided, wherein the electronic device includes an electronic device body and at least one camera module, wherein the camera module is disposed on the electronic device body for capturing an image. It should be noted that the type of the electronic device body is not limited, and for example, the electronic device body may be any electronic device capable of being configured with a camera module, such as a smart phone, a tablet computer, a notebook computer, an electronic book, a personal digital assistant, a camera, and the like. Referring to fig. 1 and 8, at least one of the camera modules on the electronic device body is a periscope camera module.

Referring to fig. 1 and 8, in some embodiments of the application, a periscope type camera module is provided. For convenience of description of the embodiments, referring to fig. 1, the periscope type camera module is defined to be arranged along a Z axis in a length direction, arranged along an X axis in a width direction, and arranged along a Y axis in a height direction. It can be understood that the coordinate system of the periscope type camera module can be flexibly set according to specific actual requirements. In the electronic apparatus (not shown in the figure) of the present embodiment, the periscope type camera module is assembled in the housing of the electronic apparatus (not shown in the figure), and the height direction of the periscope type camera module coincides with the thickness direction of the electronic apparatus (not shown in the figure) (i.e., the front-rear direction of the electronic apparatus).

Referring to fig. 1 and 8, in some embodiments of the present application, the periscope type camera module includes a frame 3 and an optical system, wherein the frame 3 is frame-shaped, and the optical system is constrained to the frame 3. The optical system includes a light turning element 5, an aperture stop (not shown in the figure), a first lens 1, a second lens 2, and a photosensitive member (not shown in the figure) which are sequentially arranged in the Z-axis direction, specifically, the light emitting direction of the light turning element 5, the axial direction of the first lens 1, the axial direction of the second lens 2, and the normal direction of the photosensitive member (not shown in the figure) are all arranged in the Z-axis direction. Wherein the light turning element 5, the aperture stop (not shown), the first lens 1 and the second lens 2 are all positioned inside the bracket 3, and the photosensitive assembly (not shown) is positioned outside the bracket 3.

Referring to fig. 1 and 8, in some embodiments of the present application, the light redirecting element 5 has an entrance face and an exit face that intersect such that the direction of light rays is changed after passing through the light redirecting element 5 to fold the optical path. The aperture stop (not shown in the figure) is used to adjust the clear aperture so that the amount of light incident on the first lens 1 can be adjusted. The first lens 1 and the second lens 2 comprise a lens barrel and a lens, the lens barrel is penetrated along the axial direction and is provided with a lens mounting hole, and the lens is provided with at least one lens and is distributed in the lens mounting hole along the axial direction, so that the first lens 1 and the second lens 2 are used for converging light rays successively. The photosensitive assembly (not shown) receives the collected light and converts the received light signal into an electrical signal for imaging.

Referring to fig. 1, in some embodiments of the present application, the light diverting member 5 is disposed at a and the photosensitive member (not shown) is disposed at B. In other embodiments, the light diverting element 5 may also be disposed between the second lens 2 and a photosensitive assembly (not shown).

The application does not limit the included angle between the incident surface and the emergent surface of the light turning element 5, and the light turning element 5 with the included angle of 30 degrees, 45 degrees, 60 degrees, 90 degrees or the like between the incident surface and the emergent surface can be selected according to the actual installation environment requirements. In some embodiments of the application, the entrance and exit faces of the light diverting element 5 are perpendicular. The type of the light redirecting element 5 is not limited in the present application as long as the requirement of changing the direction of light can be satisfied. In general, the light redirecting element 5 may be a prism, mirror or beam splitter in order to facilitate better steering of the optical path. It will be appreciated that when the total optical length (TTL) of the camera module is too long, a greater number of light redirecting elements 5 may be provided to meet the size requirements of the camera module, for example, the light redirecting elements 5 may be provided on both the object side and the image side of the camera module, or the light redirecting elements 5 may be provided between multiple lenses of the camera module.

Referring to fig. 1 and 8, the bracket 3 has a concave portion 30, and the concave portion 30 is upwardly opened, so that the first lens 1 can be inserted into the concave portion 30 from top to bottom. The up-down direction refers to the Y-axis direction (i.e., the height direction of the camera module). The carrier 4 and a driving mechanism for driving the carrier 4 to move along the Z axis are further assembled in the bracket 3, and the carrier 4 is also provided with a recess with an upward opening, so that the second lens 2 can be inserted and matched with the carrier 4 from top to bottom, and the carrier 4 can drive the second lens 2 to move along the Z axis relative to a photosensitive assembly (not shown in the figure) so as to adjust the back focal position, thereby realizing focusing and zooming of the optical system. The second lens 2 is lighter than the first lens 1, so that the output of the driving mechanism can be reduced, and the energy consumption can be reduced.

Referring to fig. 1, 2B and 4B, a first accommodating groove 31 is formed in a side wall of the concave portion 30, a first ear 11 is protruding from an outer peripheral wall of the lens barrel of the first lens 1, the first ear 11 is inserted into the first accommodating groove 31, and an adhesive (not shown) is filled between a surface of the first ear 11 and an inner wall of the first accommodating groove 31, so that the first lens 1 and the bracket 3 are adhered and fixed by the adhesive. The first accommodating groove 31 has a first opening 313 and a second opening 314, the first opening 313 faces inward and is opposite to the outer peripheral wall of the first lens 1, the second opening 314 faces upward, and the first ear 11 is configured to be inserted into the first accommodating groove 31 through the second opening 314.

Referring to fig. 1 and 8, the side wall of the carrier 4 is provided with a second accommodating groove 41, the outer peripheral wall of the barrel of the second lens 2 is convexly provided with a second ear portion 21, the second ear portion 21 is inserted into the second accommodating groove 41, and an adhesive (not shown) is filled between the surface of the second ear portion 21 and the inner wall of the second accommodating groove 41, so that the second lens 2 and the carrier 4 are adhered and fixed by the adhesive. The second accommodating groove 41 has a third opening facing inward and opposite to the outer peripheral wall of the second lens 2, and a fourth opening facing upward, and the second ear portion 21 is configured to be inserted into the second accommodating groove 41 through the fourth opening.

In the related art, based on the requirement of the lens mounting reliability in the image pickup module, it is generally necessary to fill the adhesive between the outer peripheral wall of the barrel of the first lens 1 and the surface of the concave portion 30 of the holder 3 and between the outer peripheral wall of the barrel of the second lens 2 and the inner surface of the carrier 4, in addition to the adhesive inside the first accommodation groove 31 and the second accommodation groove 41. However, the adhesive may be deformed by shrinkage during curing, so that the adhesive attached to the outer peripheral wall of the lens barrel may easily deform the lens mounting hole inside the lens during curing, thereby causing deformation of the lens peripheral side edge mounted in the lens mounting hole due to extrusion, and ultimately affecting the optical imaging performance of the optical system. Further, the more the amount of adhesive adhered to the lens peripheral wall, the more the deformation of the lens mounting hole in the lens due to the curing variation of the adhesive becomes apparent, that is, the more the influence on the optical performance of the optical system becomes apparent.

In addition, considering that the first lens 1 is heavier than the second lens 2, the reliability requirement of the periscopic image capturing module on the assembly of the first lens 1 is higher, and the influence of the adhesive curing variation on the first lens 1 is more obvious on the optical performance of the whole optical system. In addition, the first lens 1 is closer to the aperture stop (not shown in the drawings), and there are trimming edges (see fig. 5 to 7, which are designed to reduce the height of the periscope type camera module) at the top and bottom of the barrel of the first lens 1, so that the influence of the curing variation of the adhesive on the first lens 1 has a more obvious influence on the optical performance of the whole optical system. Accordingly, in some embodiments of the present application, only the structures of the first receiving groove 31 and the first ear portion 11 are modified, specifically, the second receiving groove 41 and the second ear portion 21 are both maintained in the existing design (i.e., the second receiving groove 41 extends vertically, the second ear portion 21 extends outwardly from the outer peripheral wall of the second lens 2), only the structure of the first receiving groove 31 is modified, or, the structures of the first receiving groove 31 and the first ear portion 11 are modified, the specific modification will be described in detail later.

In some embodiments of the present application, referring to fig. 7 and 11, the first ear portion 11 includes a first base portion 111, and the first base portion 111 extends outwardly from the outer peripheral wall of the first lens 1. Referring to fig. 4B and 10A to 12B, the first receiving groove 31 includes a second base 311 and a second extension 312 engaged with the second base 311, the second base 311 extends up and down, and the second extension 312 extends along the optical axis direction of the first lens 1 to form a second step at the engagement of the second base 311 and the second extension 312. Fig. 4B illustrates a first receiving groove 31 of one shape, and fig. 10A-12B illustrate a junction between the second base 311 and the second extension 312 with a dotted line in fig. 4B, and illustrate a first receiving groove 31 of another shape.

Referring to fig. 2B, in some other embodiments of the present application, the first ear 11 includes a first base 111 and a first extension 112 engaged with the first base 111, the first base 111 extends outwardly from the outer peripheral wall of the first lens 1, and the first extension 112 protrudes from a peripheral edge of the first base 111 at least in the extending direction of the optical axis to form a first step at the engagement of the first base 111 and the first extension 112. The first accommodating groove 31 includes a second base 311 and a second extension 312 engaged with the second base 311, the second base 311 extending up and down, the second extension 312 extending in the optical axis direction of the first lens 1 to form a second step at the engagement of the second base 311 and the second extension 312.

Taking the reference coordinate shown in fig. 1 as an example, the optical axis direction of the first lens 1 is the Z-axis direction, and the extending direction of the second base 311 is the Y-axis direction.

The periscope type camera module provided by the application has the advantages that the first lug 11 is arranged into the structure of the first base 111 and the first extension part 112, the first accommodating groove 31 is arranged into the structure of the second base 311 and the second extension part 312, the first extension part 112 and the second extension part 312 can increase the adhesion surface area of the adhesive, the first lug 11 and the first accommodating groove 31 are adhered more firmly, the reliability of the assembly of the first lens 1 and the bracket 3 is improved, the reliability requirement of the periscope type camera module on the assembly of the first lens 1 and the bracket 3 can be nearly or even completely met, the supplement of the adhesive between the peripheral wall of the first lens 1 and the surface of the bracket 3 is further allowed to be reduced or even avoided, most of the adhesive is even entirely concentrated in the first accommodating groove 31 far away from the peripheral wall of the first lens 1, the risk of deformation of the lens mounting hole of the first lens 1 caused by the curing of the adhesive is reduced or even avoided, and the periscope type camera module can maintain good optical performance. In addition, at least part of the first extension portion 112 and the second extension portion 312 extend along the optical axis direction of the first lens 1, but not along the extending direction of the first base portion 111 (i.e., the X-axis direction in fig. 1), so that the periscope type camera module can be prevented from being too wide, and the miniaturized design of the periscope type camera module is facilitated.

Based on the designs of the first extension portion 112 and the second extension portion 312, the periscopic camera module is more suitable for introducing a photosensitive assembly with a large image surface, a large aperture and a lens with a large proportion of trimming. The "large image plane" means 1.33 half inch, the "large aperture" means FNO of 1.6 or more, and the "large-scale trimming" means that the dimension of the trimming in the radial direction is 10% or more of the outer diameter of the lens.

In some embodiments of the present application, referring to fig. 5, the peripheral edge of the first extension 112 is only protruded on the peripheral edge of the first base 111 in the optical axis direction of the first lens 1 (the Z-axis direction shown in fig. 1), i.e., the first extension 112 is substantially flush with the first base 111 in the height direction of the first lens 1 (i.e., the Y-axis direction shown in fig. 1), so as to form a first step at the junction of the first ear 11 and the first base 111.

Since the lens barrel of the first lens 1 is usually made of plastic, and the first ear portion 11 is only distributed in a local area of the outer peripheral wall of the first lens 1, the lens barrel of the first lens 1 is easy to generate variation at the first ear portion 11 when the plastic is cured, so that the lens mounting hole of the first lens 1 is deformed. In order to improve the influence of the presence of the first ear 11 on the deformation of the lens mounting hole of the first lens 1, referring to fig. 6, in other embodiments of the present application, the peripheral edge of the first extension 112 is located at the periphery of the peripheral edge of the first base 111, which means that the peripheral edge of the first extension 112 protrudes from the peripheral edge of the first base 111 in the optical axis direction (Z-axis direction shown in fig. 1) of the first lens 1, and also protrudes from the peripheral edge of the first base 111 in the height direction (i.e., Y-axis direction shown in fig. 1) of the first lens 1, so that the design can make the first extension 112 have a larger surface, and can provide a larger attachment area for the adhesive, so as to meet the reliability requirement of the assembly of the first lens 1, thereby allowing the peripheral dimension of the first base 111 to be reduced as much as possible while increasing the adhesive attachment area of the first ear 11, and further reducing the deformation influence of the presence of the first ear 11 on the lens mounting hole, so as to meet the optical performance requirement of the camera module.

Referring to fig. 2B, 5 and 6, in some embodiments of the present application, the first extension 112 is in a sheet shape, so that the first extension 112 has a larger surface area, thereby providing a larger attachment area for the adhesive and facilitating the processing of the first extension 112.

Referring to fig. 10A to 12B, in some embodiments of the present application, the second step has a downward second step surface 315, the second step surface 315 being opposite to the upper surface of the first ear 11, so that the second step surface 315 can provide an adhesive attachment surface, and more importantly, the second step surface 315 can physically block the first ear 11 from moving upward, thereby further reducing the risk that the first ear 11 is separated from the first receiving groove 31 upward, and making the reliability of the assembly of the first lens 1 and the holder 3 higher.

Specifically, referring to fig. 10A to 12B, the second opening 314 is located at an upper end of the second base 311, and the second extension 312 is engaged with a lower end of the second base 311. Thus, during assembly, the first accommodating groove 31 is filled with the adhesive, the first lens 1 is assembled in the bracket 3 from top to bottom, the first lug 11 enters the first accommodating groove 31 through the second opening 314, the first lug 11 moves downwards along the second base 311 and then moves along the second extension 312, the moving track of the first lug 11 in the first accommodating groove 31 is controlled during assembly, and after the first lens 1 is assembled in place, the adhesive is mainly distributed at the bottom of the first accommodating groove 31 due to gravity, the first lug 11 can be packaged, and the first lug 11 and the first accommodating groove 31 are adhered more firmly, so that the assembly reliability of the first lens 1 and the bracket 3 is improved.

Referring to fig. 10B and 11, in some embodiments of the present application, a distance between the second step surface 315 and the upper edge of the first accommodating groove 31 is h1, and the mass of the first lens 1 is G, so that h1 and G satisfy the following relationship: and 0.4G/mm is less than or equal to G/h1 is less than or equal to 0.6G/mm, so that the physical blocking effect of the second step surface 315 on the upward movement of the first lug 11 is better. In the optical axis direction of the first lens 1 (the Z axis direction as shown in fig. 1), the width of the first ear 11 is w1, and the width of the second step surface 315 is w2, then w1 and w2 satisfy the following relation: w1/w2 is more than or equal to 0.8 and less than or equal to 1.2, so that the superposition area of the surfaces of the second step surface 315 and the first lug 11 is larger, and the physical blocking effect of the second step surface 315 on the upward movement of the first lug 11 is better.

Referring to fig. 2B and 4B, in other embodiments of the application, the second step has an outwardly facing fourth step surface 317, the first step having an inwardly facing first step surface 113, the first step surface 113 being opposite the fourth step surface 317. In this way, the first step surface 113 and the fourth step surface 317 can provide an adhesive adhesion surface, and more importantly, the engagement of the first step surface 113 and the fourth step surface 317 can physically block the inward movement of the first ear 11, so that the optical axis of the first lens 1 is not easily deviated from the preset position, and the optical performance of the periscope type camera module is better.

It should be noted that, in the X-axis direction, the first extension portion 112 may be engaged with any position of the first base portion 111, and the second extension portion 312 may be engaged with any position of the second base portion 311, but considering that the two sides of the first ear portion 112 in the X-axis direction and the two sides of the sidewall of the concave portion 30 in the X-axis direction of the second extension portion 312 have minimum thickness requirements during injection molding, and the filling gap of the adhesive and the tolerance of processing of each wall portion need to be reserved, so, in order to avoid the periscope type camera module from being too wide, in some embodiments of the present application, the first extension portion 112 is engaged with the outer side of the first base portion 111, and the second extension portion 312 is engaged with the outer side of the second base portion 311, the strength and the workability of the first ear portion 11 and/or the bracket 3 at the first receiving groove 31 are ensured, and the wall thickness of the bracket 3 at the first receiving groove 31 is reduced, so that the width dimension of the periscope type camera module can be reduced.

Referring to fig. 2B and 3, in some embodiments of the present application, the depth of the first receiving groove 31 is H2 in the vertical direction, and the height of the bracket 3 is H, so that H2 and H satisfy the following relationship: H2/H is more than or equal to 0.25 and less than or equal to 0.5; in the extending direction of the optical axis, the width of the first accommodating groove 31 is W, and the length of the first lens 1 is L, and W and L satisfy the following relationship: W/L is more than or equal to 0.2 and less than or equal to 0.4, thereby having the bonding firmness of the first lens 1 and the bracket 3 and the strength of the bracket 3.

Due to the presence of the first opening 313, part of the adhesive in the first accommodating groove 31 flows out of the first opening 313, and if the overflowed part of the adhesive adheres to the lens outer peripheral surface of the first lens 1, the shape of the lens mounting hole of the first lens 1 is affected by curing variation. In order to reduce or even avoid the adverse effect of the curing of the overflowed adhesive, in some embodiments of the application, referring to fig. 11, the side wall of the recess 30 is provided with a third step having a third step face 316 located under the first receiving groove 31 with a gap X between the third step and the peripheral wall of the first lens 1. In this way, even if the adhesive filled in the first accommodating groove 31 is excessive, the excessive adhesive overflows from the first accommodating groove 31, flows along the third step surface 316, and flows to the bottom of the concave portion 30 through the gap X between the third step and the outer circumferential surface of the first lens 1, so that the adhesive overflowed from the first accommodating groove 31 is not easily adhered to the outer circumferential surface of the first lens 1, and the risk of deformation of the mounting hole of the first lens 1 due to solidification of the adhesive on the outer circumferential surface of the first lens 1 is reduced or even avoided.

In consideration of structural improvement of the first accommodating groove 31 and the first lug 11, the processing difficulty of the first lens 1 and the bracket 3 is higher, and the assembling difficulty of the first lens 1 and the bracket 3 is correspondingly increased. In some embodiments of the present application, only the structures of the first accommodating groove 31 and the first ear 11 are improved, so that the reliability and the optical performance of the periscope type camera module are both achieved, and meanwhile, the processing difficulty and the assembly difficulty of the periscope type camera module are prevented from being excessively increased. It will be appreciated that in other embodiments of the present application, the second ear portion 21 and the second accommodating groove 41 may also be provided with an extension portion to increase the bonding area, so as to further improve the reliability of the periscope type camera module and reduce the influence of curing the adhesive on the optical performance. In some other embodiments of the present application, the second lens 2 may be disposed between an aperture stop (not shown in the drawings) and the first lens 1.

The specific arrangement of the driving mechanism is not limited in the present application, and typically, the driving mechanism is an electromagnetic motor or a piezoelectric motor or an electric motor. In this case, an electromagnetic motor is taken as an example, and a specific implementation manner of the driving mechanism is provided. Specifically, the side wall of the bracket 3 is provided with a circuit board, and the circuit board is assembled with the bracket 3 in a mounting or molding manner; the driving mechanism comprises a coil and a magnet, wherein the coil is arranged on a circuit board, the magnet is arranged on a carrier 4, and the coil is powered through the circuit board, so that Lorentz force generated between the coil and the magnet drives the carrier 4 to move, and further drives the second lens 2 to move.

It can be appreciated that in other embodiments, the number of lenses may be increased according to actual requirements, so that the periscope type camera module has a larger zoom range. The carrier 4 may also be arranged to move along the X-axis and/or the Y-axis, or the photosensitive assembly (not shown) may be arranged to move along the X-axis and/or the Y-axis, or the carrier 4 and/or the photosensitive assembly (not shown) may be arranged to be deflectable, thereby achieving the anti-shake function of the periscope type camera module.

It will be appreciated by persons skilled in the art that the embodiments of the application described above and shown in the drawings are by way of example only and are not limiting. The objects of the present application have been fully and effectively achieved. The functional and structural principles of the present application have been shown and described in the examples and embodiments of the present application may be modified or practiced without departing from the principles.

Claims (14)

1. Periscope type camera module, its characterized in that includes:

a first lens, the outer Zhou Bitu of which is provided with a first lug part;

The bracket is provided with a first accommodating groove, the first accommodating groove is provided with a first opening and a second opening, the first opening faces inwards and is opposite to the outer peripheral wall of the first lens, the second opening faces upwards so as to allow the first lug to be inserted and matched in the first accommodating groove through the second opening, and an adhesive is filled between the surface of the first lug and the inner wall of the first accommodating groove;

And the first accommodating groove comprises a second base part and a second extension part connected with the second base part, the second base part extends up and down, and the second extension part extends along the optical axis direction of the first lens so as to form a second step at the connection part of the second base part and the second extension part.

2. The periscope type camera module of claim 1, wherein the second step has a downward facing second step surface, the second step surface being opposite a partial surface of the first ear.

3. The periscope type camera module of claim 2, wherein the second extension is engaged with a lower end of the second base.

4. The periscope type camera module according to claim 2, wherein a distance between the second step surface and the upper edge of the first accommodating groove is h1, and the mass of the first lens is G, so that h1 and G satisfy the following relation: g/h1 is less than or equal to 0.4G/mm and less than or equal to 0.6G/mm.

5. The periscope type camera module of claim 2, wherein in the optical axis direction of the first lens, the width of the first ear is w1, and the width of the second step surface is w2, and w1 and w2 satisfy the following relation: w1/w2 is more than or equal to 0.8 and less than or equal to 1.2.

6. The periscope type camera module of claim 1, wherein the second step has an outwardly facing fourth step surface, the fourth step surface being opposite a partial surface of the first ear.

7. The periscope type camera module of claim 6, wherein the first ear comprises a first base and a first extension, the first base extends outwards from the peripheral wall of the first lens, the first extension is protruded on the peripheral edge of the first base at least in the extending direction of the optical axis, so that a first step is formed at the joint of the first base and the first extension, the first step is provided with a first step surface, and the first step surface is opposite to the fourth step surface.

8. The periscope type camera module of claim 7, wherein the first extension portion engages an outside of the first base portion and/or the second extension portion engages an outside of the second base portion.

9. The periscope type camera module of claim 6, wherein in the vertical direction, the depth of the first accommodating groove is H2, and the height of the bracket is H, so that H2 and H satisfy the following relation: H2/H is more than or equal to 0.25 and less than or equal to 0.5; in the extending direction of the optical axis, the width of the first accommodating groove is w, and the length of the first lens is L, so that w and L satisfy the following relation: w/L is more than or equal to 0.2 and less than or equal to 0.4.

10. The periscope type camera module of any one of claims 1 to 9, wherein the bracket is provided with a concave part, the first lens is inserted into the concave part from top to bottom, and the first accommodating groove is arranged on the side wall of the concave part.

11. The periscope type camera module of claim 10, wherein a third step is arranged on the side wall of the bracket, the third step is provided with a third step surface positioned below the first accommodating groove, and a gap is arranged between the third step and the peripheral wall of the first lens.

12. The periscope type camera module of claim 10, further comprising:

a carrier movably constrained to the support;

The second lens is assembled on the carrier, is positioned on one side of the first lens in the optical axis direction and is lighter than the first lens.

13. The periscope type camera module of claim 12, wherein a second lug extends outwards from the outer peripheral wall of the second lens, the carrier is provided with a second accommodating groove for the second lug to be inserted and matched in, the second accommodating groove extends up and down, and an adhesive is filled between the surface of the second lug and the inner wall of the second accommodating groove;

And the optical system further comprises an aperture diaphragm, wherein the aperture diaphragm is positioned on the light incident side of the first lens in the optical axis direction, and the second lens is positioned on the light emergent side of the first lens in the optical axis direction.

14. Electronic device, characterized in that it incorporates a periscope type camera module according to any one of claims 1 to 13.