WO2018035945A1

WO2018035945A1 - Dual camera zoom module

Info

Publication number: WO2018035945A1
Application number: PCT/CN2016/101965
Authority: WO
Inventors: 方银丽; 刘春梅; 姚立锋; 张百成
Original assignee: 宁波舜宇光电信息有限公司
Priority date: 2016-08-24
Filing date: 2016-10-13
Publication date: 2018-03-01

Abstract

Provided is a dual camera zoom module, comprising a first camera module (1), a prism module (2) and a second camera module (3), wherein the first camera module (1) is a wide-angle camera module, the second camera module (3) is a zoom camera module, the second camera module (3) and the prism module (2) constitute a periscope camera module, and light reflected by the prism module (2) enters the lens of the second camera module (3), characterized in that the first camera module (1) and the prism module (2) are coplanarly disposed, and the spacing between an incident optical axis of the first camera module (1) and the incident optical axis of the prism module (2) is between 5 mm and 15 mm. Since the spacing between the optical axes of the two camera modules is designed to be at a reasonable distance, the dual camera module can realize a zooming operation thereby effectively improving imaging resolution.

Description

Dual camera zoom module

Technical field

The invention relates to a dual camera zoom module, in particular to a dual camera zoom module for a mobile terminal.

Background technique

Chinese patent CN201480051999.0 discloses a mirror tilt actuation in which a mirror and a base supporting the mirror are provided. According to this patent, different pivot-supporting mirrors are used, and the mirrors are controlled by elements such as magnets, FP coils, Hall sensors, and springs to avoid jitter that occurs during use.

The tilting actuation result of this kind of mirror is complicated, the number of parts is numerous, and the manufacturing and maintenance are complicated.

Summary of the invention

The object of the present invention is to provide a dual camera zoom module, which enables a camera module and a prism to enter a dual camera module with high parallelism, high image quality, high overall strength, and easy mass production.

In order to achieve the above object, a dual camera zoom module is provided, including a first camera module, a prism module and a second camera module, wherein the first camera module is a wide-angle camera module, and the second camera module The group is a zoom camera module, the second camera module and the prism module form a periscope camera module, and the light reflected by the prism module is incident on the lens of the second camera module, the first camera module and the prism module The common plane is arranged such that the distance between the incident optical axis of the first camera module and the incident optical axis of the prism module is 5 mm to 15 mm.

According to an aspect of the invention, the distance between the incident optical axis of the first camera module and the incident optical axis of the prism module is d<h*tan(α/2)*ω-h*tan(β/2 );

h: object distance;

α: the angle of view of the first camera module 1;

ω: the length L of the coincidence field of view and the maximum field of view of the first camera module 1 (OH*2) Length ratio

β: the angle of view of the prism module 2.

The first camera module has an angle of view of 65° to 130°, and the second camera module has an angle of view of 20° to 55°.

In addition, the effective focal length of the first camera module is 2.5 mm to 5.5 mm, and the effective focal length of the second camera module is 3.5 mm to 19.0 mm.

In addition, the dual camera zoom module can be used to achieve 1.5x to 3.5x optical zoom.

According to an aspect of the invention, the prism module comprises a prism unit and a prism base;

The prism unit is rotatably supported in the prism base.

According to an aspect of the invention, the prism unit comprises a prism housing, a prism, a prism holder, a support sleeve and a support shaft;

The prism housing has a rectangular frame and has a bottom frame and two side frames. One end of each of the two side frames is fixedly connected to the bottom frame, and the other end is an outward end extending free end. There are connecting beams between the ends.

According to an aspect of the invention, the prism base comprises a first camera module receiving cavity, a prism receiving cavity, a connecting wall, an intermediate reinforcing plate and a bottom plate;

At least one positioning protrusion is provided on one surface of the connecting wall.

According to an aspect of the invention, the second camera module includes an image pickup housing, a motor module, an anti-shake unit and a support shell;

The imaging housing, the motor module, the anti-shake unit, and the support housing are coaxially disposed with each other.

According to an aspect of the invention, the image pickup housing includes a housing portion, an optical axis opening, a positioning hole, a front panel, and a connecting portion;

The connecting portion is located at an end of the hollow rectangular columnar outer casing portion adjacent to the front panel, and is at least two opposite to each other.

According to an aspect of the invention, the positioning projection is located in the positioning hole, and the free end and the connecting portion cooperate with each other and are fixedly connected to each other.

According to an aspect of the invention, the outer casing portion is a hollow rectangular column, the front panel is fixedly coupled to one end of the hollow rectangular cylindrical outer casing portion, and the optical axis opening is disposed on the front panel Centrally, the positioning hole is disposed on the front panel.

The dual camera zoom module according to the present invention designs the optical axis spacing of the two camera modules to be separated by a reasonable distance, thereby enabling the dual camera module to realize the zoom operation and effectively improving the resolution of the imaging.

The invention designs the field of view angle and focal length of the dual camera module within a reasonable range, and can further improve the effects of zooming and imaging.

The dual camera zoom module according to the present invention fixes the first camera module and the prism unit on the prism base, thereby ensuring that the two are on a common plane. This allows the light entering the first camera module to be parallel to the light entering the prism, thereby ensuring image quality.

According to the invention, the intermediate reinforcing plate is arranged on the prism base to strengthen the prism base, so that the overall rigidity of the prism base is improved, so that the first camera module and the prism unit are on a plane with higher rigidity, which further ensures The relative positional relationship between the first camera module and the prism is stable, ensuring that the incoming light is parallel; at the same time, the prism base is stronger and less susceptible to damage.

The dual camera zoom module according to the present invention has positioning protrusions on the prism base, and positioning holes are arranged on the second camera module, and the two cooperate with each other to ensure correct mutual positional relationship during assembly and improve image quality.

The dual camera zoom module according to the present invention employs a split structure, which divides different components into different units and then assembles them into one body. This design results in a dual camera zoom module in accordance with the present invention that can be individually replaced with different components. For example, if the first camera module is damaged or the prism unit is damaged, it can be replaced separately without affecting the second camera module behind. This split structure provides the possibility and flexibility to replace parts individually, saving manufacturing costs, labor costs, and maintenance costs during use.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a schematic diagram of an imaging overlap region of a dual camera zoom module in accordance with the present invention;

2 is a perspective view of the dual camera zoom module of the present invention assembled;

3 is an exploded perspective view of the dual camera zoom module of the present invention;

Figure 4 is a schematic exploded view of the prism unit of the present invention;

Figure 5 is a perspective view of the prism base of the present invention;

Figure 6 is a schematic view of the prism unit of the present invention assembled to a prism base;

7 is an exploded perspective view of a second camera module of the present invention;

FIG. 8 is a schematic view showing a state in which the prism module and the second camera module of the present invention are connected to each other.

detailed description

The description of this illustrative embodiment should be combined with the corresponding drawings, which are incorporated as part of the specification. In the drawings, the shape or thickness of the embodiment may be expanded and simplified or conveniently indicated. Further, portions of the various structures in the drawings will be described in terms of separate descriptions, and it is noted that components not shown or not illustrated by the drawings are known to those of ordinary skill in the art.

The present invention will be described in detail below with reference to the drawings and specific embodiments, and the embodiments are not described herein, but the embodiments of the present invention are not limited to the following embodiments.

1 is a schematic illustration of an imaging overlap region of a dual camera zoom module in accordance with the present invention. FIG. 2 is a perspective view schematically showing a dual camera zoom module according to an embodiment of the present invention. The dual camera zoom module is mainly used for a mobile terminal having a periscope camera module, such as a mobile phone. As shown in FIG. 2 , the dual camera zoom module includes a first camera module 1 , a prism module 2 , and a second camera module 3 .

The first camera module 1 is a wide-angle camera module, the second camera module 3 is a zoom camera module, and the second camera module 3 and the prism module 2 form a periscope camera module, and the prism module 2 is The reflected light is incident on the lens of the second camera module 3. The first camera module 1 and the prism module 2 are disposed in a plane, and the distance between the incident optical axis of the first camera module 1 and the incident optical axis of the prism module 2 is 5 mm to 15 mm.

Referring to FIG. 1 , the first camera module 1 has an angle of view of α and a focal length of h; the angle of view of the prism module 2 is β. The size of the half field of view area OH of the first camera module 1 shown in FIG. 1 is equal to h*tan(α/2). In FIG. 1, L is the length of the overlapping field of view region, and d is the incident of the first camera module 1. The distance between the optical axis and the incident optical axis of the prism module 2, h is the object distance. Where x1=d-h*tan(β/2), x2=d+h*tan(β/2), |x1|+x2=L. X1 is the starting position of the area of the overlapping field of view (optical zooming in the case of far focus, the left boundary of the overlapping field of view is located on the left side of the optical axis of the first camera module 1, assuming that the horizontal position coordinate of the optical axis is 0, then X1 represents the horizontal position of the left boundary of the overlapping field of view), x2 is the end position of the overlapping field of view (optical zoom in the case of far focus, the right border of the overlapping field of view is located on the right side of the optical axis of the first camera module 1 Assuming that the horizontal position coordinate of the optical axis of the first camera module 1 is 0, x2 indicates the horizontal position where the right boundary of the overlapping field of view is located. At this time, if the zoom is to be completed, the second camera module 3 is satisfied. The field of view overlap region between the prism module 2 and the first camera module 1 is within a certain field of view region of the first camera module 1.

Let L be the length of the coincident field of view, and ω be the length ratio of the length L of the coincident field of view to the maximum field of view (OH*2) of the first camera module 1. In order to achieve the focus operation, the following requirements must be met. :

X2=d+h*tan(β/2)<h*tan(α/2)*ω;

That is, d<h*tan(α/2)*ω-h*tan(β/2).

That is, in the case where α, β, and h are known, the distance d between the incident optical axis of the first camera module 1 and the incident optical axis of the prism module 2 should satisfy the above conditions.

In order to achieve a 1.5x to 3.5x optical zoom for the dual camera zoom module, a camera module that satisfies the following parameters can be used:

The field of view α of the first camera module 1 is 65° to 130°, and the field of view β of the prism module 2 is 20° to 55°; the effective focal length of the first camera module 1 is 2.5 mm to 5.5 mm. The effective focal length of the second camera module 3 is 3.5 mm to 19.0 mm.

Example 1: Implementing a 2.5x optical zoom

In this example, the field of view α of the first camera module 1 is 74°, the field of view β of the prism module 2 is 30°, and the object distance is 5000 mm, when the first camera module 1 and the prism module 2 When the incident optical axis spacing d is equal to 8.5 mm, OH is equal to 3768, x1 is -1331, x2 is 1348, and the ratio of x1 to the length OH of the half field of view (x1/OH) is -0.35, x2 and the half field of view. The ratio of the length OH (x2/OH) was 0.36.

Example 2: Achieve 1.5x optical zoom

In the present example, the field of view α of the first camera module 1 is 74°, and the field of view angle β of the prism module 2 It is 49° and the object distance is 5000mm. When the incident optical axis distance d between the first camera module 1 and the prism module 2 is equal to 10mm, OH is equal to 3768, x1 is -2269, x2 is 2289, x1 and half field of view. The ratio of length OH (x1/OH) is -0.60, and the ratio of x2 to the length OH of the half field of view region (x2/OH) is 0.61.

Example 3: Implementing a 3.5x optical zoom

In this example, the field of view α of the first camera module 1 is 78°, the field of view β of the prism module 2 is 23°, and the object distance is 5000 mm, when the first camera module 1 and the prism module 2 When the incident optical axis spacing d is equal to 10 mm, OH is equal to 4049, x1 is -1007, x2 is 1027, and the ratio of x1 to the length OH of the half field of view region (x1/OH) is -0.25, x2 and the half field of view The ratio of length OH (x2/OH) is 0.25.

3 is an exploded perspective view of the dual camera zoom module of FIG. 2, schematically showing the positional relationship between the various components of the dual camera zoom module according to the present invention.

As can be seen from Figures 2 and 3, the dual camera zoom module in accordance with the present invention employs a split configuration. In an embodiment in accordance with the present invention, the coplanar design of the first camera module 1 and the prism unit 201 is such that the two are integrated into one unit as an assembly unit. The second camera module 3 and the circuit board 4 are two other independent components or assembly units. This split structure allows individual components to be inspected prior to assembly, and once an unacceptable component or unit is found, it can be easily replaced without any effect on other components. Of course, once assembled, after a period of use, if a part or unit is found to be damaged, it is also possible to simply replace the damaged part without affecting the continued use of the other parts. This will reduce manufacturing costs as well as maintenance costs.

In an embodiment of the present invention, glue is applied to the connecting surface of the prism module 2 opposite to the second camera module 3 behind, and the connection between the two is laser-welded to each other. fixed. Applying glue to the joint faces facilitates sealing the gap between the two joint faces, thereby preventing unwanted light from entering the dual camera zoom module in accordance with the present invention.

As shown in FIGS. 2 and 3, the dual camera zoom module includes a first camera module 1, a prism module 2, a second camera module 3, and a circuit board 4. As shown in the figure, the first camera module 1 is disposed on the leftmost side of the entire dual camera zoom module, and the prism module 2 is disposed behind. The prism module 2 includes a prismatic base 202 having a rectangular shape. There are two positions on the prism base 202, one position It is disposed to accommodate the prism unit 201, and the other is used to accommodate the first camera module 1. The arrangement is such that the first camera module 1 and the prism unit 201 are mounted on a bottom plate or a plane, or the first camera module 1 and the prism unit 201 are coplanar. This eliminates the positional error between the first camera module 1 and the prism unit 201 disposed on different pedestals. This arrangement ensures the parallelism of the light entering the first camera module 1 and the prism unit 201 with a simple structure, that is, the image quality is ensured.

As shown in FIG. 2 and FIG. 3, according to an embodiment of the present invention, after the first camera module 1 and the prism module 2 are assembled to each other, the second camera module 3 is fixedly connected to each other. When implementing this connection, the two are required to be strictly positioned and aligned with each other. This ensures that the light refracted from the prism unit 201 is concentric or coaxial with the optical axis of the imaging lens in the second camera module 3. The structure of this positioning will be described in further detail later in connection with the related drawings. In the present embodiment, the prism module 2 and the second camera module 3 to which the first camera module 1 is fixed are positioned to each other, and then the two are fixedly connected to each other by laser welding or bonding. The circuit board 4 can be pre-assembled on the second camera module 3, and then the prism module 2 and the second camera module 3 of the first camera module 1 are fixedly connected to each other. The prism module 2 and the second camera module 3 of the first camera module 1 may be fixedly connected to each other, and then the circuit board 4 is fixedly connected to the second camera module 3. So far, the dual camera zoom module according to the present invention has been assembled to form a complete dual camera zoom module as shown in FIG. 2.

Figure 4 shows, in an exploded schematic view, the prism unit 201 in the prism module 2 of the dual camera zoom module in accordance with the present invention.

As shown in FIG. 4, the prism unit 201 mainly includes a prism housing 2011, a prism 2012, a prism holder 2013, a support sleeve 2014, a support shaft 2015, and a support card holder 2016. The prism housing 2011 is a rectangular frame surrounded by three side walls or a frame, and the three side walls or the frame are respectively a bottom frame 2011a and two side frames 2011b. The two side frames 2011b have the same structure and shape and are arranged opposite each other. A bottom frame 2011a is provided at one end of the two side frames 2011b. This forms an approximately U-shaped frame. This frame is a rectangular frame that is open or open on one side. The two side frames 2011b are respectively fixedly connected to the bottom frame 2011a with their respective ends, and the other end is an outwardly extending free end 2011c. In the present embodiment, the two free ends 2011c are used to interconnect with the second camera module 3 disposed in sequence. Also set between the two free ends 2011c There is a connecting beam 2011d. The connecting beam 2011d is used to fix the distance between the two free ends 2011c on the one hand, so that it can be more accurately connected with the rear second camera module 3 and then fixedly connected to each other; on the other hand, the connecting beam 2011d also plays a role The occlusion may leak light in the space between the prism 2012 and the second camera module 3 at the connection gap. This helps to improve the image quality. The connecting beam 2011d increases the overall rigidity of the prism housing 2011 and effectively prevents unwanted light from entering the dual camera zoom module in accordance with the present invention.

As shown in FIG. 4, the prism unit 201 further includes a prism 2012, a prism holder 2013, a support sleeve 2014, and a support shaft 2015. The prism 2012 is fixedly disposed in the prism holder 2013, and it can be clearly seen from the figure that the upper surface of the prism 2012 protrudes from the prism holder 2013 in the assembled state. The support bushing 2014 is fixedly mounted on the lower portion of the prism holder 2013, that is, the other side of the prism holder 2013 opposite to the position where the prism 2012 is mounted. The support shaft 2015 is rotatably mounted in the support bushing 2014.

As shown in Fig. 4, the cross section of the prism 2012 is substantially a right triangle, and the prism 2012 shown in the figure is in a state of being horizontal. As shown, the plane of a right-angled side of a right-angled triangle is set upwards. Thus, the plane of the hypotenuse of the right triangle on the prism 2012 faces the prism holder 2013 and is supported therein.

As shown in FIG. 4, in an embodiment in accordance with the invention, the support bushing 2014 cooperates with the support shaft 2015 to support the entire prism mount 2013 and the prism 2012 so as to be rotatable about the support shaft 2015.

In an embodiment in accordance with the present invention as shown in FIG. 4, the glue for bonding is first applied in the prism holder 2013, and then the prism 2012 is placed in the prism holder 2013 and the glue is solidified, thereby the prism 2012. It is firmly bonded to the prism holder 2013. The support bushing 2014 is placed in the through hole 2013a on the prism holder 2013, and is fixed. The prism holder 2013 on which the prism 2012 has been assembled is rotatably supported by the prism base 202 via the support shaft 2015, and the prism housing 2011 is mounted on the prism holder 2013.

In the embodiment according to the present invention, a magnet for driving the movement of the prism holder 2013 is further provided on the prism holder 2013, and a coil and a circuit for mutually interacting with the magnet for driving the prism holder 2013 are provided on the prism base 202. . Thereby a drive device for driving the movement of the prism 2012 is formed. Under the driving of the driving device, the prism 2012 rotates or moves relative to the support shaft 2015, from The adjustment movement of the prism 2012 in different degrees of freedom is achieved.

Figure 5 shows the specific shape and configuration of the prism base 202 in a perspective view. As shown, the prism base 202 has a rectangular shape, and its bottom plate 2025 is a rectangular flat plate. On one surface of the bottom plate 2025, a positioning frame wall 2026 extending along the side length thereof is provided. As shown, in this embodiment in accordance with the present invention, the locating frame wall 2026 does not extend continuously around the entire side length of the bottom plate 2025, but rather extends intermittently. The first opening 2028 is shown for applying the power/signal line of the first camera module 1. Similarly, the second opening 2029 is also an opening for applying a power/control signal line for controlling the prism 2012.

The prism base 202 shown in Fig. 5 is divided into two different chambers by a middle partition wall 2027, one of which is for accommodating or arranging the prism unit 201 is a prism accommodating chamber 2022. Another one for accommodating the first camera module 1 is a first camera module housing cavity 2021.

A connecting wall 2023 is disposed on one side of the prism accommodating cavity 2022. The connecting wall 2023 is connected to the second camera module 3, and at the same time, the two cameras are accurately connected to each other when being connected to the second camera module 3. The role. In the prism accommodating chamber 2022, a support for supporting the support shaft 2015 is further provided. The support shaft 2015 is fixedly supported on the support base so that the prism 2012 can be moved by the drive mechanism.

According to the present invention, the first camera module 1 and the prism module 2 are respectively disposed on the prism base 202. One of the purposes of this arrangement is to align the prisms 201 with the effective optical regions formed by the lenses in the first camera module 1. This is very important for image quality. However, when two components or units are simultaneously disposed on the prism base 202, the prism base 202 is caused to bear two parts having a certain weight. Thus, the intermediate portion of the prism base 202 becomes a relatively weak portion of the entire base. When the dual camera zoom module according to the present invention is subjected to relatively strong impact or vibration during use, the prism base 202 may break at an intermediate portion.

In order to avoid breakage of the intermediate portion of the prism base 202, an intermediate reinforcing plate 2024 is provided at its intermediate portion in accordance with the present invention. As can be seen from Figure 5, the intermediate stiffener 2024 extends through the prism base 202 across its entire width across the length of the prism base 202. The intermediate reinforcing plate 2024 has a certain thickness to enhance the strength of the intermediate portion of the prism base 202. The intermediate reinforcing plate 2024 is effectively prevented from being broken or damaged. In addition, the intermediate reinforcing plate 2024 improves the overall rigidity of the prism base 202, so that the mounting base of the first camera module 1 and the prism unit 201 is more Strengthened, the positional relationship between the two is guaranteed.

As can be seen from Fig. 6, the other surface of the connecting wall 2023 at the end of the prism base 202 is provided with positioning projections 2026. In this embodiment according to the invention, four positioning projections 2026 are provided. The four positioning projections 2026 are distributed at the four corners of the surface of the connecting wall 2023. The positioning protrusions 2026 are used to cooperate with the positioning holes 301c on the imaging housing 301 on the second camera module 3 to determine the connection position between the prism base 202 and the second camera module 3, and ensure the prism 2012. The optical axis is coaxial with the optical axis of the lens in the second camera module 3. At the same time, a through hole for passing light is also provided at a central portion of the connecting wall 2023. The light refracted by the prism 2012 will pass through the through hole and enter the second camera module 3, through which the lens reaches the photosensitive chip.

The free end 2011c of the prism housing 2011 is also clearly shown in FIG. According to this embodiment of the invention, the two free ends 2011c are used for fixed connection with the second camera module 3 behind. This will be described in further detail later.

Fig. 7 shows a partial structure of a second camera module 3 according to the present invention.

In an embodiment in accordance with the present invention, the second camera module 3 includes an imaging housing 301. As shown in FIG. 7, the imaging housing 301 has a hollow rectangular column shape, has an outer casing portion 301a surrounding a hollow rectangular column, and a front panel 301e fixedly coupled to one end of the outer casing portion 301a. As shown in FIG. 7, the length of the front panel 301e is smaller than the width of the imaging housing 301, because two connecting portions 301b are respectively provided at both ends of the imaging housing 301 in the width direction. These two connecting portions 301b are two recesses on the side of the imaging housing 301. As can be seen in conjunction with the prism housing 2011 shown in FIG. 6, in the assembled state, the free end 2011c of the prism housing 2011 is attached to the two recessed connecting portions 301b on both sides of the end portion of the imaging housing 301, and then laser welded. Or bonding to securely connect the two together.

As shown in Fig. 7, four positioning holes 301c are provided at the four corners of the front panel 301e. When the second camera module 3 and the prism base 202 to which the prism unit 201 and the first camera module 1 are attached are combined and fixed to each other, the positioning holes 301c are positioned.

Also shown in Fig. 7 is a motor module 302, an anti-shake unit 303 and a support housing 304 in this embodiment in accordance with the present invention. These components are disposed coaxially with each other, and the motor module 302 is mounted in the anti-vibration unit 303 and can be moved in the anti-vibration unit 303 by the drive mechanism. To offset the deviation caused by the jitter. The anti-shake unit 303 is integrally mounted in the support shell 304 and movable in the support shell 304 to drive the lens in the camera module for focusing.

In Fig. 7, only the components of the second camera module 3 according to the present invention are schematically shown, and the driving magnets, the corresponding Hall sensors, and the like are not specifically shown in detail.

FIG. 8 is a view schematically showing an interconnection state of the prism module 2 and the second camera module 3 in an embodiment according to the present invention.

After the prism unit 201 is integrally mounted on the prism base 202, a combination of the prism unit 201 and the prism base 202 as shown in FIG. 6 is obtained. Then, an adhesive glue is applied to the end surface of the prism base 202 facing the second camera module 3, and the corresponding end surface of the second camera module 3, the front panel 301e of the imaging housing 301, is also coated with adhesive. Glue the glue.

Then, the four positioning protrusions 2026 on the prism base 202 and the four positioning holes 301c on the imaging housing 301 of the second camera module 3 are aligned with each other, and then inserted into the positioning holes 301c. In this way, it is ensured that the second camera module 3 and the prism unit 201 are strictly aligned with each other.

After the above alignment is achieved, the free end 2011c of the prism housing 2011 is fitted at the two recessed connecting portions 301b on both sides of the end portion of the image pickup housing 301. The free end 2011c is laser welded to the connecting portion 301b or bonded by applying glue, and the two are fixedly connected. After the connection, a combination as shown in FIG. 8 is obtained, but the first camera module 1 and the corresponding circuit board 4 located at the rightmost side are omitted in FIG. The circuit board 4 can be connected to the rear of the second camera module 3 by bonding or the like.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A dual camera zoom module includes a first camera module (1), a prism module (2) and a second camera module (3), wherein the first camera module (1) is a wide-angle camera module The second camera module (3) is a zoom camera module, and the second camera module (3) and the prism module (2) form a periscope camera module, and the prism module is The group (2) reflected light is incident on the lens of the second camera module (3), wherein the first camera module (1) and the prism module (2) are coplanarly disposed. The distance between the incident optical axis of the first camera module (1) and the incident optical axis of the prism module (2) is 5 mm to 15 mm.
The dual camera zoom module according to claim 1, wherein the first camera module (1) has an angle of view of 65° to 130°, and the second camera module (3) The field angle is 20° to 55°.
The dual camera zoom module according to claim 1, wherein an effective focal length of the first camera module (1) is 2.5 mm to 5.5 mm, and an effective focal length of the second camera module (3) It is from 3.5mm to 19.0mm.
The dual camera zoom module according to any one of claims 1 to 3, wherein the dual camera zoom module is used to achieve an optical zoom of 1.5 times to 3.5 times.
The dual camera zoom module according to claim 1, wherein the prism module (2) comprises a prism unit (201) and a prism base (202), and the prism unit (201) is rotatably supported In the prism base (202);

Wherein, the prism unit (201) comprises a prism housing (2011), a prism (2012), a prism holder (2013), a support sleeve (2014) and a support shaft (2015); the prism housing (2011) has a rectangular frame , having a bottom frame (2011a) and two side frames (2011b), one end of each of the two side frames (2011b) is fixedly connected to the bottom frame (2011a), and the other end is an outward end extending free end ( 2011c), there is a connecting beam (2011d) between the two free ends (2011c).
The dual camera zoom module according to claim 5, wherein the prism base (202) comprises a first camera module receiving cavity (2021), a prism receiving cavity (2022), a connecting wall (2023), Intermediate reinforcing plate (2024) and bottom plate (2025); said connecting wall (2023) At least one positioning projection (2026) is provided on one surface.
The dual camera zoom module according to any one of claims 1 to 5, wherein the second camera module (3) comprises an imaging housing (301) and a motor module (302) disposed coaxially with each other. ), anti-shake unit (303) and support shell (304);

The imaging housing (301) includes a housing portion (301a), an optical axis opening (301d), a positioning hole (301c), a front panel (301e), and a connecting portion (301b);

The connecting portion (301b) is located at an end of the hollow rectangular columnar outer casing portion (301a) adjacent to the front panel (301e), and is at least two oppositely disposed.
The dual camera zoom module according to claim 7, wherein the outer casing portion (301a) is a hollow rectangular column, and the front panel (301e) is fixed to one end of the hollow rectangular cylindrical outer casing portion (301a). The optical axis opening (301d) is disposed at a center of the front panel (301e), and the positioning hole (301c) is disposed on the front panel (301e).
The dual camera zoom module according to claim 7, wherein the positioning protrusion (2026) is located in the positioning hole (301c), the free end (2011c) and the connecting portion (301b) Interact with each other and fixedly connected to each other. The outer casing portion (301a) is a hollow rectangular column, the front panel (301e) is fixedly connected to one end of the hollow rectangular cylindrical outer casing portion (301a), and the optical axis opening (301d) is disposed on the front panel (301e) centrally, the positioning hole (301c) is disposed on the front panel (301e).