CN113740994B

CN113740994B - Periscopic optical zoom image module and corresponding adjustable optical assembly

Info

Publication number: CN113740994B
Application number: CN202010402261.1A
Authority: CN
Inventors: 王启; 袁栋立; 郑程倡; 孙鑫翔
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2022-10-14
Anticipated expiration: 2040-05-13
Also published as: CN113740994A

Abstract

The present invention provides an adjustable optical assembly comprising: the device comprises a bearing base, a zooming optical component, a compensating optical component and a driving mechanism; wherein the drive mechanism includes: the top end of the bracket is provided with a top groove with an upward opening; the guide rod is erected in the top groove; a zoom carrier having a first through hole; a compensation carrier having a second through hole; a zoom drive assembly; and a compensating drive assembly; wherein the zooming carrier and the compensating carrier are arranged on the guide rod and can slide along the guide rod; the lenses of the zooming group are directly arranged in the first through hole and are assembled together through the zooming carrier; or the lenses of the compensation group are directly arranged in the second through hole and assembled together through the compensation carrier. The invention also provides a corresponding periscopic optical zoom module. The invention can reduce the volume of the device and reduce the tolerance by integrating the carrier and the lens barrel.

Description

Periscopic optical zoom image module and corresponding adjustable optical assembly

Technical Field

The invention relates to the technical field of camera modules, in particular to a periscopic optical zoom module.

Background

With the rise of living standards, consumers have higher and higher requirements on the camera functions of terminal devices such as mobile phones and tablets, so that the effects of background blurring and night shooting are required to be achieved, the requirements on telephoto are also provided, and the consumers need the terminal devices capable of clearly shooting distant pictures.

In order to realize shooting at different distances, terminal equipment on the market at present realizes zooming shooting in a mode of forming an array module by a wide-angle lens and a telephoto lens, but because the lens is a fixed-Focus lens generally, the focal length of the lens cannot be adjusted, digital zooming can be realized only by carrying out algorithms such as difference values on images intercepted by a photosensitive chip, the imaging quality of pictures is poor, even if part of the terminal equipment uses a lens with an AF (Auto Focus) function, automatic focusing can be realized, the shooting effect of the terminal equipment is improved, but focusing can only adjust the images formed by the lens to be optimal generally, the focal length of an optical system still cannot be adjusted, and the requirement of zooming shooting by consumers cannot be met.

On the other hand, optical zooming is a camera module that realizes zoom shooting. The optical zooming is to change the focal length of the lens by changing the distance between the optical lenses of the lens so as to achieve the purpose of zooming, and can shoot objects at far positions more clearly, and the imaging quality of images formed by the optical zooming is relatively high. Zooming here refers to changing the focal length in order to take a scene of different distances. Furthermore, at present, a periscopic module is often used in a terminal device such as a mobile phone to meet a telephoto requirement, and how to make the periscopic module have an optical zoom capability in a limited space of the mobile phone is a big problem at present.

Therefore, there is a need for a periscopic module solution that can achieve miniaturization of continuous optical zoom.

Disclosure of Invention

The present invention is directed to overcome the disadvantages of the prior art and to provide a periscopic module that can achieve a compact size of continuous optical zoom.

To solve the above technical problem, the present invention provides an adjustable optical assembly for an optical zoom module, the adjustable optical assembly comprising: a load bearing base; a zoom optical assembly comprising a zoom group of at least one lens; a compensating optical assembly comprising a compensating group of at least one lens; and a drive mechanism including: the bottom end of the bracket is connected with the bearing base, and the top end of the bracket is provided with a top groove with an upward opening; the guide rod is erected in the top groove, and the direction of the optical axis of the guide rod is consistent with that of the optical axis of the zoom optical assembly and that of the compensation optical assembly; a zoom carrier having a first through hole; a compensation carrier having a second through hole; a zoom drive assembly including a zoom coil and a zoom magnetic element; and a compensation drive assembly comprising a compensation coil and a compensation magnetic element; the zooming carrier is arranged on the guide rod and can slide along the guide rod under the driving of the zooming driving component; the compensation carrier is arranged on the guide rod and can slide along the guide rod under the driving of the compensation driving component; the zooming coil and the zooming magnetic element are respectively fixed on the bearing base and the zooming carrier; the compensation coil and the compensation magnetic element are respectively fixed on the bearing base and the compensation carrier; the lenses of the zooming group are directly arranged in the first through hole and are assembled together through the zooming carrier; or the lenses of the compensation group are directly mounted on the second through hole and assembled together through the compensation carrier.

Wherein the height of the top surface of the guide rod does not exceed the top surface of the zooming carrier; or the height of the top surface of the guide rod is higher than that of the top surface of the zooming carrier, and the height difference between the top surface of the guide rod and the top surface of the zooming carrier is not more than 0.4mm.

Wherein the first through hole is in a cut circle shape, and the cut circle shape is a shape formed by cutting the top and the bottom of a circle.

Wherein the guide rod comprises a first guide rod and a second guide rod; the zoom carrier has a top side, a bottom side, a drive side and a driven side facing away from the drive side, the zoom drive assembly being disposed on the drive side; the first guide rod is arranged on the driven side, and the second guide rod is arranged on the driving side.

Wherein the top side, the bottom side and the driven side of the zoom carrier have a top sidewall, a bottom sidewall and a driven sidewall, respectively, the top sidewall and the bottom sidewall having a smaller thickness than the driven sidewall.

Wherein the driven side and the driving side of the zoom carrier each have a guide mounting structure adapted to mount the first guide or the second guide.

The guide rod mounting structure is a lateral guide rod groove, and the opening direction of the lateral guide rod groove is perpendicular to the opening direction of the top groove of the support.

The guide rod mounting structure is a guide rod through hole, and the guide rod penetrates through the guide rod through hole.

The cross section of the guide rod through hole is in a shape of a rounded triangle, and a ball is arranged between the guide rod and the guide rod through hole.

The guide rod mounting structure comprises a guide rod through hole or a guide rod groove; the driving side of the zooming carrier is provided with the guide rod through hole, the guide rod penetrates through the guide rod through hole, the driven side of the zooming carrier is provided with the lateral guide rod groove, and the opening direction of the lateral guide rod groove is perpendicular to the opening direction of the top groove of the bracket.

Wherein the drive side of the zoom carrier has a groove-like structure in which the zoom magnetic elements are fixed in an embedded manner.

The zooming magnetic element is fixed on the bearing base, is shaped like a plate and is provided with a surface facing the zooming coil.

Wherein the second through hole is in a cut circle shape, and the cut circle shape is a shape in which the top and bottom of the circle are cut.

Wherein the guide rod comprises a first guide rod and a second guide rod; the compensating carrier has a top side, a bottom side, a drive side and a driven side facing away from the drive side, the compensating drive assembly being disposed on the drive side; the first guide rod is arranged on the driven side, and the second guide rod is arranged on the driving side.

Wherein the top side, the bottom side, and the driven side of the compensation carrier have a top sidewall, a bottom sidewall, and a driven sidewall, respectively, the top sidewall and the bottom sidewall having a thickness less than the driven sidewall.

Wherein the driven side and the drive side of the compensation carrier each have a guide bar mounting structure adapted to mount the first guide bar or the second guide bar.

The guide rod mounting structure comprises a guide rod through hole or a guide rod groove; the driving side of the zooming carrier is provided with the guide rod through hole, the guide rod penetrates through the guide rod through hole, the driven side of the zooming carrier is provided with the lateral guide rod groove, and the opening direction of the lateral guide rod groove is perpendicular to the opening direction of the top groove of the support.

Wherein the compensation carrier has a magnetic element mounting structure formed to extend outward from below over the second guide bar; the compensation magnetic element is a bar magnet, the axis of the bar magnet is consistent with the optical axis of the compensation optical assembly, one end of the bar magnet is connected with the magnetic element mounting structure, the other end of the bar magnet is a free end, and the bar magnet can extend into the compensation coil.

The adjustable optical assembly comprises a shell, and the shell comprises the bearing base and a cover body matched with the bearing base.

The bearing base comprises a welding disc assembly, and the zooming driving assembly and the compensating driving assembly are electrically connected with the outside through the bearing base.

According to another aspect of the present invention, there is provided a periscopic optical zoom module comprising: an adjustable optical component according to any one of the preceding claims; a fixed optical assembly comprising a light turning element, the zoom optical assembly disposed between the light turning element and the compensation optical assembly; and the compensation optical assembly is arranged between the zooming optical assembly and the photosensitive assembly.

The photosensitive assembly comprises a circuit board main body, a photosensitive element mounted on the surface of the circuit board main body, a color filter support positioned on the surface of the circuit board main body and surrounding the photosensitive element, and a color filter element mounted on the color filter support.

The color filter support is a molding part which is directly formed on the surface of the circuit board main body based on a molding process, and the molding part covers the electronic element which is arranged on the surface of the circuit board main body and is positioned outside the photosensitive element.

The circuit board main body is connected with the connector through a first connecting belt, the circuit board main body is further connected with a driving circuit board through a second connecting belt, a zooming driving assembly and a compensation driving assembly are arranged in the driving circuit board, and the driving circuit is electrically connected with the photosensitive assembly through the second connecting belt.

The adjustable optical assembly comprises a shell, and the shell comprises the bearing base and a cover body matched with the bearing base; the driving circuit board is arranged on the side face of the shell and is electrically connected with the zooming driving component and the compensation driving component.

The guide rods comprise a first guide rod and a second guide rod, the second guide rod is positioned on a driving side where the zooming driving assembly and the compensation driving assembly are arranged, and the first guide rod is positioned on a driven side away from the zooming driving assembly and the compensation driving assembly; the bracket comprises a first bracket for erecting the first guide rod and a second bracket for erecting the second guide rod, the first bracket is columnar, the second bracket comprises a columnar supporting part and a baffle, the baffle extends from the columnar supporting part to the driving side to form, and the baffle is suitable for separating the moving ranges of the zooming carrier and the compensating carrier.

Compared with the prior art, the application has at least one of the following technical effects:

1. the periscopic module structure of this application can realize continuous optics with less space cost and zoom.

2. The adjustable optical assembly is compact in structure and convenient to assemble, and is very favorable for large-scale mass production.

3. The adjustable optical component is provided with the support and the guide rod on the bearing base, and can effectively ensure that the moving directions of the zooming group and the compensating group do not deviate from the main optical axis.

4. In this application, through setting up the control of height to the guide arm, can guarantee that adjustable optical assembly and corresponding periscopic module have less height to be convenient for electronic equipment (for example cell-phone) carries on corresponding periscopic module, avoid the thickness increase of electronic equipment (for example cell-phone).

5. In this application, can drive the removal of zooming group and compensation group through setting up drive circuit at bearing the base, because these drive circuit are set up at bearing the base, consequently can avoid the circuit board circuit among the photosensitive assembly too much, help reducing the circuit board size.

6. In this application, can drive the removal of zooming group and compensation group through setting up drive circuit at bearing the weight of the base, functional circuit in drive circuit and the circuit board of photosensitive assembly can separate like this, and drive circuit can design great linewidth to provide bigger drive power for the removal of zooming group and compensation group.

7. In this application, can set up the both sides at the mounting hole of carrier and compensation carrier with the guide arm mounting structure of zooming to the wall thickness that makes mounting hole top and bottom can be reduced to minimumly, thereby reduces the height of adjustable optical assembly or periscopic module effectively.

8. In this application, can reduce adjustable optical component's size through the design of carrier and lens cone integration, and then reduce the size of periscopic module.

9. In this application, can help reducing the part tolerance of adjustable optical component's motor carrier through the design of carrier and lens cone integration to and reduce the tolerance in the equipment clearance of camera lens and carrier, and then reduce periscopic module's imaging system's whole off-centre and tilt (slope).

Drawings

FIG. 1 shows a perspective view of a periscopic optical zoom lens in one embodiment of the present application;

FIG. 2 shows a schematic optical path diagram of a periscopic continuous-optics zoom lens in an embodiment of the present application;

FIG. 3 is a perspective view of a light turning element according to one embodiment of the present application;

FIG. 4 illustrates a schematic side view of a fixed optical component in one embodiment of the present application;

FIG. 5 is a perspective view of an optical lens after edge trimming in one embodiment of the present application;

FIG. 6 is a perspective view of a periscopic optical zoom module according to an embodiment of the present disclosure;

FIG. 7 illustrates a perspective view of a drive mechanism of an adjustable optical assembly in one embodiment of the present application;

FIG. 8 illustrates a perspective view of the internal structure of an adjustable optical assembly in one embodiment of the present application;

fig. 9 shows a schematic perspective view of a zoom carrier in an embodiment of the present application;

FIG. 10 illustrates an assembled perspective view of a zoom carrier and zoom optical assembly in one embodiment of the present application;

FIG. 11 shows a schematic perspective view of a compensation carrier in one embodiment of the present application;

FIG. 12 illustrates an assembled perspective view of a compensation carrier and compensation optics assembly in one embodiment of the present application;

FIG. 13 illustrates a schematic side view of a periscopic optical zoom assembly in one embodiment of the present application;

FIG. 14 shows a schematic side view of a photosensitive assembly in an embodiment of the present application;

FIG. 15 shows a schematic side view of a photosensitive assembly in another embodiment of the present application;

FIG. 16 illustrates a perspective view of a photosensitive assembly and a drive wiring board in one embodiment of the present application;

fig. 17 shows a perspective view of a zoom carrier based on an integrated design of the carrier and lens barrel in an embodiment of the present application;

fig. 18 shows a schematic cross-sectional view of a zoom carrier based on an integrated design of the carrier and barrel in an embodiment of the present application;

fig. 19 shows a schematic perspective view of a compensation carrier based on an integrated design of the carrier and the lens barrel in an embodiment of the present application;

fig. 20 shows a schematic cross-sectional view of a compensation carrier based on a carrier and barrel integrated design in an embodiment of the present application;

FIG. 21 is a schematic diagram illustrating the active calibration of a fixed lens assembly of the periscopic optical zoom module in one embodiment of the present application;

FIG. 22 is a schematic diagram illustrating a side view of the relative positions of the housing of the fixation assembly and the light turning element in one embodiment of the present application;

FIG. 23 shows a schematic cross-sectional view of a fixed optical component in an alternative embodiment of the present application;

FIG. 24 shows a schematic cross-sectional view of a fixed optical component in another variant embodiment of the present application;

FIG. 25 is a schematic assembly view of the periscopic optical zoom module in one embodiment of the present application;

FIG. 26 shows a completed fixed optical assembly in another embodiment of the present application;

FIG. 27 is a schematic assembly diagram of the periscopic optical zoom module in another embodiment of the present application;

FIG. 28 is an assembled view of the periscopic optical zoom module in yet another embodiment of the present application;

FIG. 29 is a schematic assembled view of a periscopic optical zoom lens with fixed lenses on the light incident side according to an embodiment of the present application;

fig. 30 is a schematic diagram illustrating an assembled state of a periscopic optical zoom module in an embodiment of the present application, in which the fixed lenses may be located at the light incident side.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that the expressions first, second, etc. in this specification are used only to distinguish one feature from another feature, and do not indicate any limitation on the features. Thus, a first body discussed below may also be referred to as a second body without departing from the teachings of the present application.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

As used herein, the terms "substantially," "about," and the like are used as words of table approximation, not as words of table degree, and are intended to account for inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The invention is further described below with reference to the accompanying drawings and specific embodiments. For clarity of the structure, the following description is divided into three parts, optical design, structural design and assembly scheme.

1. Optical design

According to one embodiment of the present application, there is provided a periscopic continuous-optics zoom lens (sometimes simply referred to as a periscopic optical zoom lens or a periscopic optical variable lens). Fig. 1 shows a perspective schematic view of a periscopic optical zoom lens in one embodiment of the present application. Referring to fig. 1, in the present embodiment, the periscopic optical zoom lens 1000 includes a fixed optical component 100 and an adjustable optical component for implementing continuous optical zoom. Wherein the adjustable optical assembly may comprise a drive mechanism comprising a drive element and an adjustable assembly housing, a zoom optical assembly 200 and a compensation optical assembly 300, the drive element being adapted to drive the zoom optical assembly 200 and the compensation optical assembly 300, respectively, to move along the x-axis relative to the adjustable assembly housing. In this embodiment, the x-axis may be in the same direction as a main optical axis of an optical imaging system of the lens. The zoom optical assembly 200 has an optical axis, and the zoom optical assembly 200 is adapted to move in the optical axis direction thereof, so as to implement the zoom function of the telephoto lens; the compensating optical assembly 300 also has an optical axis, and the compensating optical assembly 300 is also suitable for moving in the direction of the optical axis thereof to realize the focusing function of the lens, compensate the focus offset caused by the movement of the zooming optical assembly 200, and improve the imaging quality of the lens. The directions of the optical axis of the zoom optical assembly 200 and the optical axis of the compensation optical assembly 300 are substantially the same, and the optical axis of the optical system formed by combining the light-emitting side of the fixed optical assembly 100, the zoom optical assembly 200 and the compensation optical assembly 300 can be regarded as the main optical axis of the optical imaging system in the present embodiment, and the direction of the main optical axis can also be substantially the same as the directions of the optical axes of the zoom optical assembly 200 and the compensation optical assembly 300, that is, both directions are substantially the same as the x-axis direction. Through the respective adjustment of the zoom optical assembly 200 and the compensation optical assembly 300, the continuous optical zooming of the lens can be realized, and meanwhile, the imaging clarity is ensured. It is noted that for clarity of the drawing, only the fixed optical assembly 100, the zoom optical assembly 200 and the compensation optical assembly 300 are shown in fig. 1, while the drive elements and the adjustable assembly housing are not shown in fig. 1.

Further, still referring to fig. 1, in an embodiment of the present application, the periscopic continuous-optics zoom lens is a telephoto lens. The zoom optical assembly 200 is located between the fixed optical assembly 100 and the compensating optical assembly 300, and the compensating optical assembly 300 is closer to the light sensing chip for receiving the light of the telephoto lens than the zoom optical assembly 200, that is, the compensating optical assembly 300 is located at the image side of the telephoto lens. However, in other embodiments, the positions of the zoom optical assembly 200 and the compensation optical assembly 300 may be interchanged, i.e., the zoom optical assembly 200 may be closer to the photosensitive chip than the compensation optical assembly 300.

Further, in an embodiment of the present application, the zoom optical assembly includes a zoom lens barrel and at least one optical lens, and the zoom lens barrel has a through hole for mounting the at least one optical lens, so that the at least one optical lens is fixed in the zoom lens barrel. Specifically, in this embodiment, the zoom optical assembly may include four optical lenses, and the four optical lenses are assembled together through the zoom lens barrel to form a zoom lens group. Fig. 2 shows an optical path schematic diagram of a periscopic continuous-optics zoom lens in one embodiment of the present application. Referring to fig. 2, in the present embodiment, a zoom lens group (sometimes referred to simply as a zoom group) may include eight optical surfaces, i.e., optical surfaces SS10-S17, where each lens has two optical surfaces. All the lenses of the zoom lens group can adjust their positions on the optical axis (in the present embodiment, the direction of the optical axis coincides with the x-axis) together. The compensating optical assembly may include a compensating barrel and at least one optical lens, the compensating barrel having a through hole for mounting the at least one optical lens, so that the at least one optical lens is fixed in the compensating barrel. Still referring to fig. 2, in the present embodiment, the compensating optical assembly may include three optical lenses, and the three optical lenses may be assembled together and moved together along the optical axis (referring to the x-axis) by the compensating cylinder. The three optical lenses of the compensation optical assembly may form a compensation lens group (sometimes referred to as simply a compensation group), and in this embodiment, the compensation lens group may include six optical surfaces, i.e., optical surfaces S18 to S23. Further, the fixed optical assembly may include a fixed barrel and at least one optical lens. Referring to fig. 2, the number of optical lenses in the fixed optical assembly in the embodiment may be three (in other embodiments, other numbers may also be used). In this embodiment, the fixed optical assembly further includes a light turning element, and the light turning element is adapted to turn the light incident on the fixed optical assembly at an angle close to 90 ° and exit from the exit surface of the fixed optical assembly to enter the zoom optical assembly and the compensation optical assembly. Thus, the incident side of the fixed optical component has a first optical axis ax1, and the exit side thereof has a second optical axis ax2, the second optical axis ax2 being substantially perpendicular to the first optical axis ax1. The second optical axis ax2 substantially coincides with the direction of the optical axes of the zoom optical component and the compensation optical component, i.e. both are substantially the same as the direction of the x-axis. For convenience of description, the optical axis of the optical path formed by the light-emitting side portion of the fixed optical component, the zooming optical component and the compensating optical component is sometimes referred to herein as the main optical axis of the optical zoom lens (or the main optical axis of the optical zoom module). Referring to FIG. 2, in the present embodiment, the fixed optical assembly may include nine optical surfaces S1-S9, wherein the optical surfaces of the fixed lens include S1-S4 and optical surfaces S8-S9, and the optical surfaces S5-S7 are the incident surface, the reflective surface and the exit surface of the light turning element, respectively. Further, two optical surfaces S24-S25 of the color filter are also shown in fig. 2.

Further, in an embodiment of the present application, at least two of the three optical lenses of the fixed optical assembly have positive focal lengths to converge light, so that the light turning element at the rear end thereof can select a relatively small size, thereby reducing the overall size of the lens. Further, the focal length of the fixed optical assembly may be positive, the focal length of the zoom optical assembly may be negative, and the focal length of the compensation optical assembly may be negative.

Further, in one embodiment of the present application, the light turning element may be a mirror or a reflective prism (e.g., a triangular prism). When the light turning element is implemented as a prism, the incident surface and the light emergent surface of the prism are perpendicular to each other, the light reflecting surface of the prism is inclined at an angle of 45 degrees with the incident surface and the light emergent surface, the light reflecting surface can totally reflect the light incident from the incident surface, and the incident light is turned by 90 degrees and then is emitted from the light emergent surface.

Further, fig. 3 shows a perspective view of a light turning element according to an embodiment of the present application. Referring to fig. 3, in one embodiment of the present application, the prism as the light-turning element 110 may further have a light-blocking structure 111. The light blocking structure 111 may be installed at a light incident surface or a light emitting surface 112 of the prism, and particularly, the blocking structure may be installed to cover an edge of the prism, thereby preventing stray light from being formed at the edge of the prism to which light is incident. The light blocking structure is adapted to block light transmission, at least visible light transmission. The light blocking structure has a through hole adapted to allow effective light transmission of the telephoto lens through the prism. Preferably, the through hole is circular to match with the circular effective optical area of the optical lens, so as to reduce the influence of stray light on lens imaging as much as possible.

Further, in an embodiment of the present application, the light blocking structure may be disposed on both sides of the prism not participating in imaging of the optical path, and may be disposed on a light reflecting surface of the prism, and the blocking structure may be implemented as a black mylar sheet, which may be adhered to the prism. In another embodiment of the present application, the barrier structure may be formed using ink application.

Further, in one embodiment of the present application, the fixed optical assembly includes at least two optical lenses. In terms of optical design, two adjacent optical lenses of the at least two optical lenses of the fixed optical assembly may have a larger gap therebetween. Thus, the light turning element may be placed between the two lenses such that the optical path length of the light in the light turning element (which may be, for example, a prism) is substantially equal to the gap between the two lenses in the optical design, thereby reducing the size of the telephoto lens while achieving the optical path turning of the telephoto lens. Note that, in the present embodiment, a small gap (light-in gap) may be formed between the light-in lens and the light-in surface of the prism, and a small gap (light-out gap) may be formed between the light-out lens and the light-out surface of the prism. The light entrance side gap and the light exit side gap are reserved, so that the assembly of the fixed optical assembly can be facilitated.

More specifically, FIG. 4 illustrates a schematic side view of a fixed optical component in one embodiment of the present application. Referring to fig. 4, in the present embodiment, the light turning element 110 may be located between the second optical lens 113 and the third optical lens 114 (where the second and third are counted along the light incidence direction) of the fixed optical assembly, and the second optical lens 113 and the third optical lens 114 have a larger gap therebetween.

Further, in an embodiment of the present application, in the periscopic optical variable lens as a telephoto lens, the fixed optical assembly, the zoom optical assembly and the compensation optical assembly respectively have three, four and three optical lenses, and the fixed optical assembly further includes a reflective prism between the second optical lens and the third optical lens. The light enters the fixed optical assembly and exits after being refracted and converted by the prism, and the fixed optical assembly is provided with two orthogonal optical axes, namely an incident optical axis and an exit optical axis. The incident light and the emergent light of the fixed optical component are vertical to each other. The emergent optical axis of the fixed optical component and the optical axes of the zooming optical component and the compensating optical component are positioned on the same straight line, and the optical axes are fused together to form the main optical axis of the periscopic optical variable lens.

In an embodiment of the present application, the periscopic optical variable lens is a telephoto lens, and a focal length f of the periscopic optical variable lens can be changed by moving the zoom optical assembly and the compensation optical assembly on an optical axis, so that images of scenes with different distances can be obtained on the premise of clear shooting. For example, in the embodiment, the zoom optical assembly and the compensation optical assembly may be moved simultaneously toward the fixed optical assembly (generally, the moving distances of the zoom optical assembly and the compensation optical assembly are different), so as to increase the effective focal length of the telephoto lens, or conversely, the zoom optical assembly and the compensation optical assembly may be moved simultaneously away from the fixed optical assembly, so as to decrease the effective focal length of the telephoto lens.

In one embodiment of the application, the telephoto lens can achieve continuous optical zooming with an effective focal length of the lens in a range of 18mm-30 mm. While the effective focal length of the telephoto lens varies with the movement of the zoom optical assembly, the aperture value (Fno) of the telephoto lens also varies with the effective focal length. For example, the (effective focal length, aperture value) may be (18mm, 3.2), (21mm, 3.9), (24mm, 4.4), (27mm, 4.9), (30 mm, 5.3), and correspondingly, the field angle (FOV) also varies depending on the effective focal length, and the (effective focal length, field angle) may be (18mm, 16.5 °), (21mm, 13.8 °), (24mm, 12 °), (27mm, 10.7 °), or (30mm, 9.8 °). Therefore, the telephoto lens described herein can achieve continuous optical zooming of the telephoto end. Further, in a preferred embodiment, by optimizing the optical system parameter design, the telephoto lens can further realize continuous optical zooming with an effective focal length in a range of 15mm to 40 mm.

Further, in an embodiment of the present application, the telephoto lens further includes a STOP (refer to fig. 2) located at a front end of the zoom optical assembly, and the STOP may be disposed or installed at the zoom optical assembly so as to move together with the zoom optical lens group during an optical zooming process.

Further, in an embodiment of the present application, in terms of optical design, the optical system of the telephoto lens further satisfies a series of conditions, and a better technical effect is obtained. The meanings of the symbols in the respective conditions are listed below.

L: the total optical length of the periscopic optical zoom lens, namely the distance from one object side optical surface of the periscopic optical zoom lens to an image surface, HIMGH: half image plane height, Z: zoom magnification, LA: length of the fixed optical component, LB: length of the zoom optical assembly, LC: length of the compensating optical component, fg1: focal length of the fixed optical component, fg2: focal length of the zoom optical assembly, fg3: focal length of the compensating optical component, f: entire optical system focal length, G1: interval of the fixed optical component and the zoom optical component, G2: interval of the zoom optical component and the compensation optical component, G3: compensating for the spacing of the optical assembly and the chip.

In this embodiment, the conditions that the optical system needs to satisfy include the following conditions a to f.

Condition a: L/HIMGH is more than or equal to 10 and less than or equal to 15. Satisfying the condition a, the optical system (i.e., the optical system of the periscopic optical zoom lens) of the present embodiment can control the length of the optical system well on the premise that the height of the half-image plane is constant.

Condition b: L/Z is more than or equal to 15 and less than or equal to 23. Satisfying the condition a, the optical system of the present embodiment can realize a larger zoom magnification with a smaller optical system length.

Condition c: LA/L is more than or equal to 0.1 and less than or equal to 0.5; LB/L is more than or equal to 0.1 and less than or equal to 0.5; LC/L is more than or equal to 0.1 and less than or equal to 0.5; further, condition c may be replaced with further optimized condition c 1: LA/L is more than or equal to 0.2 and less than or equal to 0.4; LB/L is more than or equal to 0.1 and less than or equal to 0.2;0.35 LC/L is less than or equal to 0.5. Condition c and condition c1 each define the respective length of each group.

Condition d: fg1/f is more than or equal to 0.4 and less than or equal to 0.6; fg2/f is more than or equal to-0.3 and less than or equal to-0.1; fg is more than or equal to-0.2 and less than or equal to-0.1 per f. The condition d defines the ratio of the focal length of each group to the focal length of the whole optical system, in some embodiments of the present application, the focal length of the fixed optical assembly is positive, the focal length of the zoom optical assembly is negative, the focal length of the compensation optical assembly is negative, and the focal lengths of the fixed optical assembly, the zoom optical assembly and the compensation optical assembly meet the definition of the condition d, so that the sum M1+ M2 of the moving stroke of the zoom optical assembly and the moving stroke of the compensation optical assembly can be in the range of 4mm to 6.5 mm. During zooming, the zoom optical assembly moves between the fixed optical assembly and the compensation optical assembly, thereby changing the focal length of the lens. When the zoom optical assembly moves along the optical axis, the distance difference between the fixed group and the zoom optical assembly at the maximum focal length and the minimum focal length of the lens is the moving amount of the zoom optical assembly, that is, the moving stroke M1 of the zoom optical assembly (i.e., the moving stroke M1 of the zoom group). Specifically, the moving stroke M1 of the zoom group is: the difference between the distance between the zoom group and the fixed group in the maximum focal length state of the lens and the distance between the zoom group and the fixed group in the minimum focal length state of the lens. The compensation optical assembly moves between the zooming optical assembly and the imaging surface of the photosensitive chip, so that the imaging clarity of the lens is guaranteed, and the distance difference between the compensation optical assembly and the photosensitive assembly when the lens has the maximum focal length and the minimum focal length is the movement amount of the compensation optical assembly, namely the movement stroke M2 of the compensation optical assembly (namely the movement stroke M2 of the compensation group). Specifically, the moving stroke M2 of the compensation group is: the distance between the compensation group and the photosensitive chip in the maximum focal length state of the lens is different from the distance between the compensation group and the photosensitive chip in the minimum focal length state of the lens. In order to make the length of the telephoto lens relatively small and not make the zoom range of the telephoto lens have a large restriction, and ensure a certain optical zoom capability, the sum M1+ M2 of the moving stroke of the zoom optical assembly and the moving stroke of the compensation optical assembly in the present application is between 2mm and 9mm, and in some preferred embodiments, the value (i.e., M1+ M2) is between 4mm and 6.5 mm. The smaller the value of M1+ M2, the smaller the length of the telephoto lens, however, the smaller the size will affect the design of the zoom capability of the lens, so that the zoom range of the lens is smaller. When the condition d is satisfied, the sum M1+ M2 of the moving strokes of the zoom optical assembly and the compensation optical assembly can be in the range of 4mm-6.5mm, so that the length of the periscopic optical variation module can be effectively controlled, and the whole lens can have excellent optical zoom capability. Table 1 shows the values of M1 and M2 for 6 different embodiments.

TABLE 1

Examples	M1(mm)	M2(mm)	M1+M2(mm)
				1	0.594	4.689	5.283
2	0.635	4.508	5.143
				3	0.680	4.701	5.381
4	0.566	5.656	6.222
				5	0.599	4.432	5.031
6	2.169	2.358	4.527

In the 6 embodiments of table 1, the fixed group, zoom group, and compensation group of embodiments 1-5 have 3, 4, and 3 lenses, respectively, and the zoom group and compensation group move in the same direction during zooming (e.g., in a single zoom movement, both zoom group and compensation group move in the positive x-axis direction or both in the negative x-axis direction). The fixed group, zoom group, compensation group of embodiment 6 have 2, 5, 3 lenses, respectively, and the zoom group and the compensation group move in opposite directions during zooming (e.g., in a single zoom movement, the zoom group and the compensation group move in positive and negative x-axis directions, respectively).

Condition e: G1/G2 is more than or equal to 0 and less than or equal to 1.2; G2/G3 is more than or equal to 0 and less than or equal to 8. The condition e defines the relationship of the intervals between the groups in the optical system of the present embodiment during the optical zooming.

Condition f: G3/L is more than or equal to 0.02 and less than or equal to 0.20. The back focus (G3) varies with optical system zooming. Satisfying the condition f, the back focus of the optical system of the present embodiment can be made smaller than the total optical length. Specifically, the variation of the back focus in the range of 0.8 to 6.7mm can be realized, and the reduction of the back focus of the optical system can enable the size of the telephoto lens of this embodiment to be reduced.

Further, in another embodiment of the present application, in the periscopic optical variable lens as a telephoto lens, the fixed optical assembly, the zoom optical assembly and the compensation optical assembly respectively have two, five and three optical lenses, and the two fixed lenses of the fixed optical assembly are disposed on the light incident side of the reflection prism. Because two fixed lens all set up in reflection prism's income light side in this embodiment, when the fixed optical assembly of equipment, need not be in the position and the gesture of going into light side and the side of play light alignment optical lens simultaneously, consequently can reduce fixed optical assembly's the equipment degree of difficulty. Note that, in a telephoto lens, the optical sensitivity of the first three optical lenses close to the object side tends to be larger. In this embodiment, the third optical lens from the object side is disposed on the zoom optical assembly, and compared to the foregoing embodiments (referring to the embodiments in which the fixed optical assembly, the zoom optical assembly and the compensation optical assembly are respectively disposed with three, four and three optical lenses), the zoom optical assembly of this embodiment has a greater optical sensitivity, and during zooming, deviations occurring in the position and posture of the zoom optical assembly may have a relatively greater influence on the imaging quality. Therefore, in the embodiment, the anti-shake function can be arranged on the photosensitive assembly, and/or the position and posture deviation of the zooming optical assembly under different zooming multiples can be compensated through a software algorithm, so that higher imaging quality can be obtained. Further, in the present embodiment, a diaphragm may be disposed between the third and fourth object-side lenses of the optical system. I.e. the diaphragm may be arranged between the first and second sheet lenses at the object side within the zoom optical assembly.

Further, in an embodiment of the present application, a periscopic-design-based continuous optical zoom telephoto lens with structural stability is also provided. On the one hand, to achieve a large range of optical zoom, the distance between adjacent lens groups in the telephoto lens may become very close, and on the other hand, in the present embodiment, each lens group is often assembled by a structural member, which generally provides a function of protecting the optical member (e.g., each lens). Generally, in the actual production process, the optical design is first performed, and then the corresponding structural members are designed to assemble the actual product according to the determined optical design. In the present invention, in order to reduce the length of the module as much as possible (the length of the module here refers to the dimension in the main optical axis direction of the periscopic module), it may be preferable in optical design to design the optical surface pitch between the respective lens groups to be as small as possible. On the other hand, however, such design considerations may cause structural members (e.g., lens barrels) of the optical assemblies to interfere with each other. In order to take both into consideration, in the present embodiment, at least one of the two adjacent optical surfaces belonging to the two adjacent lens groups is a convex surface. That is, two adjacent optical surfaces respectively belonging to two adjacent lens groups may be convex surfaces; or, for two adjacent optical surfaces belonging to two adjacent lens groups respectively, one of the optical surfaces is a convex surface and the other is a concave surface. This design may help to leave sufficient clearance for the design of the structural member, avoiding a reduction in structural stability and reliability of the optical system due to an excessively thin thickness of the structural member. Specifically, the lens groups may include a fixed lens group, a zoom lens group, and a compensation lens group. The fixed lens group may be mounted in a fixed assembly housing (i.e., a structure of the fixed lens group), the zoom lens group may be mounted in a zoom lens barrel (i.e., a structure of the zoom lens group), and the compensation lens group may be mounted in a compensation lens barrel (i.e., a structure of the compensation lens group). The zoom lens group comprises a fixed lens group, an object side surface and a lens surface, wherein the image side surface of the optical lens closest to the image side of the fixed lens group and the object side surface of the optical lens closest to the object side of the zoom group comprise at least one convex surface; the zoom lens group comprises an image side surface of the optical lens closest to the image side and an object side surface of the optical lens closest to the object side.

Further, in an embodiment of the present application, in a case where the movement of each optical component of the telephoto lens can satisfy a wide range of optical zooming, when the effective focal length of the entire telephoto lens is maximized, the distance between the fixed component housing and the zoom lens barrel is minimized, and this minimum distance may preferably be 0.002-0.2mm in the case of structural design. When the distance is less than 0.002mm, the production yield of the lens barrel may be greatly reduced because the precision of manufacturing the lens barrel is difficult to meet the requirement, and when the distance is more than 0.2mm, the thickness of the top of the lens barrel (sometimes called as the zenith) for bearing the lens may be excessively small, and the reliability of the zoom lens barrel is reduced (the inside of the zoom lens barrel often needs to assemble a plurality of lenses, so that the zenith of the lens barrel needs certain structural strength to ensure the reliability of assembling the lens group). Similarly, when the distance between the zoom lens barrel and the compensation lens barrel is at a minimum (in this embodiment, when the effective focal length of the lens is at a maximum), this minimum distance may preferably be 0.002-0.2mm. When the distance is less than 0.002mm, the yield of the lens is greatly reduced because the precision of manufacturing the lens barrel is difficult to meet the requirement, and when the distance is more than 0.2mm, the thickness of the top surface (sometimes called as the top surface) of the compensation lens barrel is reduced, so that the reliability of the compensation lens barrel is reduced (a plurality of lenses are often required to be assembled in the compensation lens barrel, and the distance between some lenses may be larger, so that the top surface of the lens barrel needs certain structural strength to ensure the reliability of assembling the lens group).

In an embodiment of the present application, the effective focal length of the telephoto lens is relatively long, and in order to obtain sufficient luminous flux and ensure sufficient light imaging, the total optical length of the telephoto lens is relatively longer than that of a normal lens, and meanwhile, the size of the optical lens of the telephoto lens is also relatively large. In order to reduce the height of the periscopic telephoto lens, at least one optical lens of the zoom optical assembly and the compensation optical assembly may be trimmed. The trimming process can be realized by cutting, grinding, etching or directly adopting a die forming mode and the like. The edge-cutting process may be edge-cutting of the optically inactive area (i.e., the structured area) of the optical lens, and sometimes even the optical area of the optical lens. The corresponding lens barrel used for accommodating the edge cutting lens can also carry out corresponding edge cutting treatment. Therefore, the outer shapes of part or all of the zoom lens and the compensation lens may be cut circles. The cutting circle is a shape formed by cutting off the top or/and bottom of a circle.

Further, in an embodiment of the present application, the zoom lens barrel and the compensation lens barrel have at least one further planar outer side. The opposite sides of the optical lens (the opposite sides are the top side and the bottom side after being arranged in the periscopic lens) are trimmed, and the outer side surfaces of the opposite sides of the zoom lens barrel and the compensation lens barrel are planes (the outer side surfaces of the opposite sides are the top side and the bottom side after being arranged in the periscopic lens). FIG. 5 illustrates a perspective view of an optical lens after edge trimming in one embodiment of the present application. In this embodiment, the two sides of the lens barrel are planes, so that the height of the periscopic module can be reduced as much as possible, thereby helping to reduce the thickness of electronic equipment (such as a mobile phone, a tablet personal computer, and the like) which needs to be equipped with the periscopic module. In addition, the outer side surfaces of two opposite planes of the zoom lens barrel and the compensation lens barrel can provide a relatively flat mounting surface, so that the telephoto lens can be more easily mounted in a driving mechanism (such as a carrier of the driving mechanism) of the camera module.

Furthermore, some embodiments of the present application further provide periscopic continuous optical zoom modules. The periscopic continuous optical zoom module can comprise a photosensitive assembly and the periscopic continuous optical zoom lens in any one of the embodiments. The photosensitive assembly can comprise a light filtering assembly, a photosensitive chip and a circuit board. The filter assembly may include a base and a filter mounted to the base. The top surface of the lens base can be a flat installation surface, and the periscopic continuous optical zoom lens can be installed on the installation surface so as to assemble a periscopic continuous optical zoom module. Note that, in the present application, the photosensitive element is not limited to the above implementation, and may be assembled with the periscopic continuous optical zoom lens.

Still further, according to an embodiment of the present application, there is provided a periscopic optical variable lens having ten lenses in optical design, specifically, the ten lenses, in order from an object side to an image side, include:

the first lens with positive focal power has a convex object-side surface and a convex image-side surface;

a second lens element having a negative refractive power, the object-side surface of the second lens element being concave, and the image-side surface of the second lens element being concave;

the paraxial part of the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface;

a fourth lens element having a negative refractive power, the object-side surface of the fourth lens element being concave, and the image-side surface of the fourth lens element being concave;

a fifth lens element having positive refractive power, the object-side surface of which is convex/concave, and the image-side surface of which is convex;

a sixth lens element with negative refractive power, the object-side surface of which is concave and the image-side surface of which is convex/concave;

a seventh lens element having a negative refractive power, the object-side surface of which is convex/concave, and the image-side surface of which is concave;

an eighth lens element with positive refractive power having a convex object-side surface and a convex image-side surface;

a ninth lens element with negative power, having a concave object-side surface and a convex/concave image-side surface at the paraxial region;

the tenth lens with negative power has a convex/concave surface at the paraxial region of the object side and a convex/concave surface at the paraxial region of the image side.

The periscopic optical variable lens further comprises a reflecting prism, and the reflecting prism can be arranged at the front end of the first lens or between any two lenses of the ten lenses in terms of optical design.

The reflecting prism can be placed before the first sheet, or between any two mirrors. The optical design also satisfies the following conditions.

Condition 1: the total optical length TTL and the imaging half-image height HImgH of the optical system meet the following requirements: TTL/HImgH is more than or equal to 10 and less than or equal to 15, the condition 1 is met, the system can be ensured to have a more compact structure, and meanwhile, the height of the periscopic optical variable lens is compressed. The height here means a dimension in a direction parallel to the light incident side optical axis of the reflection prism.

Condition 2: the effective focal length f of the optical system and the imaging half-image height HIMGH meet the following conditions: f/HImgH is more than or equal to 6 and less than or equal to 12, and the optical system of the periscopic optical variable lens can be ensured to have a proper view field when the condition 2 is met.

Condition 3: the relation between the total optical length TTL and the zooming ratio Z of the optical system satisfies the following conditions: TTL/Z is more than or equal to 15 and less than or equal to 23, and the condition 3 is met to ensure that the total optical length of the system is not too long.

Condition 4: the relationship between the first group length LA (i.e. fixed group length), the second group length LB (i.e. zoom group length), the third group length LC (i.e. compensation group length) and the total optical length TTL of the optical system satisfies the following conditions: LA/L is more than or equal to 0.1 and less than or equal to 0.5,0.1 and less than or equal to LB/L is more than or equal to 0.5,0.1 and less than or equal to LC/L is less than or equal to 0.5; the condition 4 is met, so that the length distribution of each group is uniform, and the stroke of the motor is uniform.

Condition 5: the focal length fg1 of the first group, the focal length fg2 of the second group and the focal length fg3 of the third group of the system satisfy the following conditions: fg1/f is more than or equal to 0.4 and less than or equal to 0.6, fg2/f is more than or equal to 0.3 and less than or equal to-0.1, fg3/f is more than or equal to 0.3 and less than or equal to-0.1, and the requirement 5 can be met to correct the aberration of the system, so that the imaging quality can be met under different zoom magnifications.

Condition 6: under all zoom magnifications (zoom magnifications) in the zooming process, the distance G1 between the first group and the second group, the distance G2 between the second group and the third group, and the distance G3 between the third group and the photosensitive chip of the system meet the following requirements: G1/G2 is more than or equal to 0 and less than or equal to 1.2,0 is more than or equal to G2/G3 is less than or equal to 8, and the optical total length of the system can be controlled under the condition of ensuring the zoom magnification of the system when the condition 6 is met.

Condition 7: the refractive indexes of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, the ninth lens and the tenth lens of the optical system are respectively n1, n2, n3, n4, n5, n6, n7, n8, n9 and n10, the abbe numbers of the lenses are respectively v1, v2, v3, v4, v5, v6, v7, v8, v9 and v10, the average value of the dispersion coefficients of the positive focal power lenses is np, the average value of the dispersion coefficients of the negative focal power lenses is nn, the average value of the abbe numbers of the positive focal power lenses is Vdp, the average value of the abbe numbers of the negative focal power lenses is Vdn, and the above parameters meet the following conditions:

0≤(v1+v2+v3)/(v4+v5+v6+v7)≤1

1≤(v4+v5+v6+v7)/(v8+v9+v10)≤1.5

0≤(n1+n2+n3)/(n4+n5+n6+n7)≤1

1≤(n4+n5+n6+n7)/(n8+n9+n10)≤1.5

35≤Vdn≤50

40≤Vdp≤50

1.55≤nn≤1.60

1.50≤np≤1.60；

satisfying the above relation (that is, satisfying the condition 7) can effectively reduce the dispersion and correct the aberration.

Condition 8: the optical path length of the optical system before the reflecting prism is Lpf, and the prism width is D, then the following conditions are satisfied: lpf + D is more than or equal to 0 and less than or equal to 8, and the height of the periscopic optical variable lens can be controlled when the condition 8 is met. The height here refers to a dimension in a direction parallel to the light entrance side optical axis of the reflection prism.

2. Structural design

Fig. 6 is a schematic perspective view illustrating a periscopic optical zoom module according to an embodiment of the present application. Referring to fig. 6, in the present embodiment, the periscopic optical zoom module includes a fixed optical assembly 100, an adjustable optical assembly 900 and a photosensitive assembly 400. The fixed optical assembly 100 includes a reflective prism (the reflective prism is blocked in fig. 6), a fixed lens 130, and a fixed assembly housing 120. The fixed lens 130 may have one or more fixed lenses, wherein at least one fixed lens 130 is located at the front end of the light incident surface of the reflection prism. The reflecting prism and the stationary lens 130 are installed in the stationary assembly housing 120. The fixed component housing 120 has a light entrance hole at the light entrance side of the fixed optical component and a light exit hole at the light exit side of the fixed optical component. The adjustable optical assembly includes a zoom optical assembly, a compensation optical assembly, a drive mechanism, and an adjustable assembly housing. The driving mechanism is suitable for driving the zooming optical assembly and the compensating optical assembly to respectively move relative to the fixed optical assembly (relative to the photosensitive assembly). The zoom optical assembly, the compensation optical assembly, and the drive mechanism may all be disposed within the adjustable assembly housing. The photosensitive assembly comprises a photosensitive chip. The photosensitive assembly is located on the image side of the periscopic optical zooming module and used for receiving light rays passing through the fixed optical assembly, the zooming optical assembly and the compensating optical assembly so as to complete imaging. The adjustable component shell can be provided with a light inlet hole and a light outlet hole, and the photosensitive component can be directly fixed at the light outlet hole of the adjustable component shell. In this embodiment, the periscopic optical zoom module can be a telephoto imaging module, and is used for meeting the telephoto requirement. In this embodiment, the light turning element can be disposed between the two fixed lenses, so that the TTL/module length is greater than 0.8. Here, TTL is the total optical length of the periscopic optical zoom module, and in this embodiment, the total optical length is the distance from the first optical surface on the object side of the optical system to the light-sensing surface (or image surface). The module length is the total length of the periscopic optical zoom module in the direction of the main optical axis. This design allows for a longer TTL at the premise of a shorter module length. Further, in a preferred embodiment, the TTL/module length may be greater than 0.9, so that the size of the tele camera module can be further reduced while still meeting the camera requirements. Furthermore, at least one optical lens is arranged on the light incident side of the reflecting prism of the fixed optical assembly, so that the problem that the size of the module in the height direction is too large and the module is difficult to be installed in a thin mobile phone is solved, and the top surface of the adjustable optical assembly is lower than the top surface of the light incident side of the fixed lens cone of the fixed optical assembly, namely, the part of the fixed lens cone of the fixed optical assembly can protrude out of the adjustable optical assembly. In this embodiment, the height of the adjustable optical assembly is less than 8mm, and the height of the periscopic camera module may be less than 10mm. Specifically, in one example, the height of the adjustable optical assembly may be about 6.65mm, and the height of the periscopic optical zoom module may be about 8.5 mm.

Further, fig. 7 shows a perspective view of a driving mechanism of an adjustable optical component in an embodiment of the present application. Fig. 8 shows a perspective view of the internal structure of an adjustable optical component in an embodiment of the present application. Referring to fig. 7 and 8 in combination, in the present embodiment, the adjustable optical assembly 900 includes a zoom optical assembly 200, a compensation optical assembly 300, a driving mechanism 910, and an adjustable assembly housing 920. The adjustable component housing 920 includes a supporting base 921, and the supporting base 921 is substantially a flat plate. The driving mechanism 910 may be installed on an upper surface of the carrying base 921. The driving mechanism 910 may include a plurality of brackets 911, a first guide bar 912 and a second guide bar 913 mounted on top of the plurality of brackets 911, a zoom carrier 914 and a compensation carrier 915 mounted on the first guide bar 912 and the second guide bar 913, a first magnet 916 mounted on the zoom carrier 914 and a second magnet 917 connected to the compensation carrier 915, and a first coil 918 and a second coil 919 mounted on a carrier base 921. The zoom carrier 914 may slide along the first guide rod 912 and the second guide rod 913 under the action of the first magnet 916 and the first coil 918, and the compensation carrier 915 may slide along the first guide rod 912 and the second guide rod 913 under the action of the second magnet 917 and the second coil 919. The bracket 911 has a groove at the top for mounting a first guide bar 912 and a second guide bar 913. The bottom end of the support 911 is connected to the upper surface of the bearing base 921. The stand 911 and the base 921 may be integrally formed, or the stand 911 and the base 921 may be prefabricated separately and then assembled together. The zoom carrier 914 has a through hole for mounting the zoom optical assembly 200 and the compensation carrier 915 has a through hole for mounting the compensation optical assembly 300. In this embodiment, the first magnet 916 and the second magnet 917 are both magnets made of permanent magnetic material.

Further, still referring to fig. 7 and 8, in one embodiment of the present application, the zoom optical assembly 200 may be a zoom sub-lens including a first barrel and a zoom lens group mounted within the first barrel. The compensating optical assembly 300 may be a compensating sub-lens including a second barrel and a compensating lens group mounted in the second barrel. The outer side of the first barrel is adapted to the shape of the inner side (i.e. the through hole wall) of the zoom carrier 914. The first barrel can be bonded to the inner side of the zoom carrier 914 (in another embodiment, the first barrel can also be screwed with the inner side of the zoom carrier). The outer side of the second barrel is adapted to the shape of the inner side of the compensation carrier 915. The second barrel can be bonded to the inner side of the compensation carrier 915 (in another embodiment, the second barrel can also be threaded to the inner side of the compensation carrier). In this embodiment, the first guide rod 912 and the second guide rod 913 are parallel (the arrangement direction of the first guide rod and the second guide rod is the same as the optical axis direction of the zoom sub-lens and the compensation sub-lens), and the first guide rod 912 and the second guide rod 913 are respectively arranged in the two side areas of the through holes of the zoom carrier and the compensation carrier. In the present embodiment, the first coil 918, the second coil 919, the first magnet, and the second magnet are disposed on the same side of the optical component, and for convenience of description, the side on which the first coil, the second coil, the first magnet, and the second magnet are disposed will be referred to as a driving side herein. In this embodiment, the first guide bar 912 is located on the opposite side of the driving side, and the second guide bar 913 is located on the driving side. The bracket 911 may include a first bracket for supporting the first guide bar 912 and a second bracket for supporting the second guide bar 913. The first bracket may have a cylindrical shape, and a groove 911a is formed at the top thereof to mount the first guide bar 912. The second bracket may include a column support portion 911b and a barrier 911c. The baffle 911c is formed to extend outward (i.e., toward the driving side) from the columnar support portion 911 b. The barrier 911c may separate the respective moving ranges of the zoom sub-lens and the compensation sub-lens. The first bracket and the second bracket may each have two. Of course, in other embodiments, the number of the brackets 911 can be flexibly set according to the situation, for example, one first bracket and one second bracket, or three or more first brackets and three or more second brackets can be set on the carrying base. The number of first and second brackets may also be different, for example in another example the load-bearing base may be provided with two first brackets and three second brackets. The top grooves of the first bracket and the second bracket are both opened upwards. The top recesses 911c of all the first carriers are substantially aligned so that the first guide rods 912 mounted thereto are in a state of being parallel to the optical axis. The top grooves of all the second holders are also substantially aligned so that the second guide rods 913 mounted to the grooves are in a state of being parallel to the optical axis.

Further, still referring to fig. 7 and 8, in an embodiment of the present application, the second bracket may be used as a device for limiting the moving stroke of the zoom carrier 914 and the compensation carrier 915 in addition to the second guide rod 913. The second bracket may include a column support 911b and a barrier 911c. The shutter 911c is formed to extend outward from the columnar support portion 911 b. Wherein a second bracket is located between the zoom carrier 914 and the compensation carrier 915, which can prevent the zoom optical assembly 200 and the compensation optical assembly 300 mounted in the zoom carrier 914 and the compensation carrier 915 from colliding and causing damage. While another second carriage, which may prevent the compensation carrier 915 from moving out of the stroke, may be located close to the image side of the compensation carrier 915.

Further, fig. 9 shows a schematic perspective view of the zoom carrier in an embodiment of the present application. Fig. 10 shows an assembled perspective view of a zoom carrier and a zoom optical assembly in an embodiment of the present application. Referring to fig. 9 and 10, in the present embodiment, the zoom carrier 914 has a through hole for mounting the zoom optical assembly 200, so that the zoom driving assembly can move the zoom optical assembly 200 along the optical axis by driving the zoom carrier 914 to move. For convenience of description, the through-hole for mounting the zoom optical assembly 200 may be referred to as a zoom through-hole 914a. The variable focus optical assembly 200 and the variable focus carrier 914 may be bonded by an adhesive or may be fixed by a screw. The zoom through-hole may have a shape of a cut circle, specifically, a shape in which the top and bottom of a circle are cut, as shown in fig. 9 and 10. The shape of the through hole cut in a circle is helpful for reducing the height of the zoom carrier 914, thereby realizing miniaturization of the device and reducing the thickness of terminal equipment such as a mobile phone. Further, in the present embodiment, the zoom carrier 914 has two end faces, which are a front end face close to the object side and a rear end face close to the image side, and four side faces, which are a top side 914b, a bottom side 914c, a driving side 914d, and a driven side 914e. Where the driving side 914d is the side closer to the electromagnetic drive element and the driven side 914e is the side away from the electromagnetic drive element. The top side 914b and the bottom side 914c of the zoom carrier 914 have top and bottom sidewalls, respectively, which may be smaller in thickness to reduce the height of the periscopic zoom module. The specific thickness values may be determined as practical, as long as the top and bottom sidewalls are structurally strong enough to reliably secure the enclosed variable focus optical assembly. The follower side 914e of the zoom carrier 914 has follower sidewalls, which may be thicker than the top and bottom sidewalls. The top region of the driven side wall extends laterally outwardly to form a lateral extension 914f, which lateral extension 914f forms a lateral guide bar groove 914g, the opening direction of which is the direction away from the driving side. Also, the opening direction of the lateral guide groove 914g is substantially perpendicular to the opening direction of the top groove 911c of the first bracket (the top groove 911c of the first bracket opens upward, and the opening of the lateral guide groove 914g is laterally outward), so that the zoom carrier can be more stably mounted on the first bracket by the first guide 912. In the zoom carrier, the zoom through hole 914a may be regarded as being formed by the top sidewall, the bottom sidewall, the driven sidewall and the driving sidewall. Wherein the driving side wall is located at the driving side of the zoom carrier. The drive side wall extends laterally outward and may form a drive extension with a solenoid mounting structure 914h and a guide bar mounting structure 914 i. The height of the driving extension part does not exceed the height of the top side wall, so that the extra size in the thickness direction of the mobile phone (or other terminal equipment) is avoided. In this embodiment, the entire zoom carrier 914 may be integrally formed. The drive sidewall and the drive extension can thus be fused into one piece. In this way, the wall thickness of the zoom through-hole on the drive side may be significantly greater than the thickness of the driven, top and bottom side walls. In this embodiment, the guide bar mounting structure 914i of the drive extension may include a through-hole having a triangular cross-sectional shape, which may be referred to as a guide bar through-hole (also referred to as a guide bar tube) for ease of description. The second guide rod may pass through the guide rod through hole. Specifically, the cross-sectional shape of the guide rod through hole may be a rounded triangle. The rounded triangle may be a triangle with a vertex at a rounded corner (or called a chamfer). Balls may be provided between the guide-bar through-hole and the second guide bar passed therethrough, the balls may be provided on at least three sides of the second guide bar (where the three sides may be at positions corresponding to three rounded corners of a rounded triangle), and a lubricating medium may be further provided in the guide-bar through-hole so as to reduce friction between the second guide bar, the balls, and a hole wall of the guide-bar through-hole. Preferably, the cross section of the guide rod through hole is a round-corner equilateral triangle. To enable the zooming magnetic element (e.g., the first magnet 916) to be firmly mounted on the zooming carrier 914, the zooming carrier 914 may have an electromagnetic element mounting structure 914h thereon, and the electromagnetic element mounting structure 914h may be in a groove shape, and the zooming magnetic element may be embedded and fixed in the groove-shaped structure, so as to be fixed on the zooming carrier 914.

Further, referring to fig. 7, 9 and 10 in combination, in an embodiment of the present application, the zoom carrier 914 and the zoom optical assembly 200 carried thereby may be driven by a zoom driving assembly. The zoom driving assembly may include a zoom coil (i.e., first coil 918) and a zoom magnetic element (i.e., first magnet 916), the zoom magnetic element is fixed to the driving side 914d of the zoom carrier, the zoom coil may be fixed to the supporting base 921, and the zoom coil is disposed opposite to the zoom magnetic element. In particular, the zooming magnetic element, which has a substantially plate-like shape, may have a surface facing the drive element, which surface faces said zooming coil. By electrifying the zooming coil, the zooming magnetic element can move relative to the bearing base, so that the zooming carrier is driven to move relative to the bearing base, and the optical zooming of the camera module is realized. It should be noted that in other embodiments of the present application, the positions of the zoom coils and the zoom magnetic elements may be interchanged, that is, the zoom coils may be fixed to the zoom carrier, and the zoom magnetic elements may be fixed to the carrying base.

Further, fig. 11 shows a schematic perspective view of a compensation carrier in an embodiment of the present application. Fig. 12 shows a perspective view of an assembled compensation carrier and compensation optics assembly in an embodiment of the present application. Referring to fig. 11 and 12, in the present embodiment, the compensation carrier 915 has a through hole for mounting the compensation optical assembly 300, so that the compensation driving assembly can move the compensation optical assembly 300 along the optical axis by driving the compensation carrier 915 to move. For convenience of description, the through-hole for mounting the compensating optical assembly 300 may be referred to as a compensating through-hole 915a. The compensating optical assembly 300 and the compensating carrier 915 may be bonded by an adhesive or may be fixed by a screw. The compensation through-hole 915a may have a shape of a cut circle, specifically, a shape in which the top and bottom of a circle are cut, as shown in fig. 11 and 12. The shape of the cut round through hole is helpful for reducing the height of the compensation carrier 915, thereby realizing the miniaturization of the device and reducing the thickness of terminal equipment such as a mobile phone. Further, in this embodiment, the compensation carrier 915 has two end faces, which are a front end face close to the object side and a rear end face close to the image side, and four side faces, which are a top side 915b, a bottom side 915c, a driving side 915d and a driven side 915c. Where the driving side 915d is the side closer to the electromagnetic driving element and the driven side 915e is the side facing away from the electromagnetic driving element. The top side 915b and the bottom side 915c of the compensation carrier 915 have top and bottom sidewalls, respectively, which may be smaller in thickness to reduce the height of the periscopic compensation module. The particular thickness values may be determined as appropriate, so long as the top and bottom sidewalls are structurally strong enough to reliably secure the incorporated compensating optical assembly. The driven side 915e of the compensator carrier 915 has driven sidewalls, which may be thicker than the top and bottom sidewalls. The top region of the driven side wall extends laterally outwardly to form a lateral extension 915f, and the lateral extension 915f forms a lateral guide groove 915g, which opens in a direction away from the driving side. And the opening direction of the lateral guide bar groove is approximately perpendicular to the opening direction of the top groove of the first bracket (the top groove of the first bracket is opened upwards, and the opening of the lateral guide bar groove is laterally outwards), so that the compensation carrier can be more stably installed on the first bracket through the first guide bar. In the compensation carrier, the compensation through hole can be regarded as being formed by the top side wall, the bottom side wall, the driven side wall and the driving side wall. Wherein the driving sidewall is located on the driving side 915d of the compensation carrier 915. The drive sidewall extends laterally outward and may form a drive extension having a solenoid mounting structure 915h and a guide bar mounting structure 915 i. The height of the driving extension part does not exceed the height of the top side wall, so that the extra size in the thickness direction of the mobile phone (or other terminal equipment) is avoided. In this embodiment, the entire compensation carrier 915 may be integrally formed. The drive sidewall and the drive extension can thus be fused into one piece. Thus, the wall thickness of the compensating through-hole 915 at the driving side 915d can be significantly greater than the thickness of the driven, top, and bottom sidewalls. In this embodiment, the guide rod mounting structure 915i of the driving extension is a through hole with a triangular cross-sectional shape, which can be referred to as a guide rod through hole (also referred to as a guide rod tube) for convenience of description. The second guide rod may pass through the guide rod through hole. Specifically, the cross-sectional shape of the guide rod through hole may be a rounded triangle. A rounded triangle may be a triangle with the vertices at rounded corners (or referred to as chamfers). Balls may be provided between the guide-bar through-hole and the second guide bar passed therethrough, the balls may be provided on at least three sides of the second guide bar (where the three sides may be at positions corresponding to three rounded corners of a rounded triangle), and a lubricating medium may be further provided in the guide-bar through-hole so as to reduce friction between the second guide bar, the balls, and a hole wall of the guide-bar through-hole. Preferably, the cross section of the guide rod through hole is a round-corner equilateral triangle. The compensating drive assembly may include a compensating coil (i.e., the second coil 919) and a compensating magnetic element (the second magnet 917). In order to allow the compensating magnetic element (i.e., the second magnet 917) to be stably mounted on the compensating carrier 915, the compensating carrier 915 may have a magnetic element mounting structure 915h thereon, and the magnetic element mounting structure 915h may be formed to extend from below to the outside beyond the second guide rod (the second guide rod is not shown in fig. 11 and 12, and may be combined with fig. 7). The compensating magnetic element may be a bar magnet having one end connected to the magnetic element mounting structure and the other end being a free end, the axis of the bar magnet being in line with the optical axis direction of the compensating optical assembly 300, and the bar magnet may be inserted into the compensating coil. This design allows the compensating drive assembly to have a greater driving force. In this embodiment, the compensation optical assembly has a larger axial length than the zoom optical assembly, and therefore a relatively larger weight, and the compensation driving assembly with the above structure can provide a larger driving force for the compensation carrier and the compensation optical assembly in a limited space. And, the way that the magnetic element part stretches into the coil through hole can increase the stroke of compensation drive assembly relative to the arrangement way that the magnetic element is arranged outside the coil. In this embodiment, the compensation coil is powered on to move the compensation magnetic element relative to the bearing base, so as to drive the compensation optical component carrier to move relative to the bearing base, thereby implementing a compensation function in the optical zoom of the camera module. When the zoom optical assembly is moved to change the focal length of the optical system, the image plane of the optical system also moves, but in the camera module, the position of the photosensitive assembly is fixed, so the image plane of the optical system and the imaging plane of the photosensitive chip of the photosensitive assembly are overlapped as much as possible by compensating the movement of the optical assembly, and the imaging of the camera module is realized. The compensation function of the compensation optical assembly mainly aims at adjusting the image plane of the optical system to obtain clear images, so that the movement of the compensation optical assembly can also be regarded as a focusing process.

In the above embodiments, the first guide rod and the second guide rod can ensure that the zoom optical assembly and the compensation optical assembly are not prone to tilt during movement, and the continuous optical zoom of the telephoto lens (the periscopic optical zoom lens in this application is a telephoto lens) can be achieved by a driving method of the coil-magnetic element, that is, a driving method of a VCM (voice coil motor).

It should be noted that in the above embodiments, the positions of the zoom coil and the zoom magnetic element may be interchanged, that is, the zoom coil may be fixed to the zoom carrier, and the zoom magnetic element may be fixed to the carrying base. Similarly, the positions of the compensation coil and the compensation magnetic element can be interchanged.

In the above embodiments, the positions of the lateral guide bar groove and the guide bar through hole (i.e. the guide bar tube) on the zoom carrier may be interchanged, or both sides of the zoom carrier may be provided with the guide bar through hole or the lateral guide bar groove. Similarly, the positions of the lateral guide grooves and the guide through holes (i.e., guide tubes) on the compensation carrier may be interchanged, or both sides of the compensation carrier may be provided with guide through holes or lateral guide grooves.

Further, fig. 13 shows a schematic side view of a periscopic optical zoom assembly in an embodiment of the present application. Referring to fig. 13, in the present embodiment, a distance between the top surface of the second guide rod 913a and the bearing base 921 is h1, and a distance between the top surface of the lens barrel of the zoom optical assembly (or the top surface 300a of the lens barrel of the compensation optical assembly) and the bearing base 921 is h2, then h1 is not less than h2+0.4mm. In other words, in the present embodiment, the top surface of the second guide bar 921 may be located higher than the top surface of the zoom optical assembly, but the height difference between the top surface of the second guide bar 913 and the top surface of the zoom optical assembly is not more than 0.4mm. This design may avoid the effect of the height of the second guide rod 913 on the height of the module. In the example of fig. 13, the top surface 913a of the second guide rod 913 may be positioned lower than the top surface of the zoom optical assembly (or the barrel top surface 300a of the compensation optical assembly). The first guide bar and the second guide bar may be at or approximately at the same height. The top surface of the compensating optical assembly may be at or near the same height as the top surface of the variable focus optical assembly.

Further, in an embodiment of the present application, the housing of the adjustable optical assembly may include the carrying base and a cover body adapted to the carrying base. The cover body and the bearing base are mutually fixed, and can provide protection for the driving mechanism, the zooming optical assembly and the compensating optical assembly. Meanwhile, the first guide rod and the second guide rod may be restricted from moving in the axial direction by the cover. Specifically, the length of the guide rods (including the first guide rod and the second guide rod) may be substantially the same as the axial distance between the inner side surfaces of the cover (i.e., the inner side surfaces of the housing), so that the guide rods may be prevented from being displaced in the axial direction. Axial here refers to the direction of the optical axis, i.e. the direction of movement of the zoom optical component and the compensation optical component.

Further, in an embodiment of the present application, the carrying base further provides an electrical function, for example, when the carrying base is integrally formed, a circuit frame is embedded in the carrying base by an insert molding method, so as to form a carrying base with an electrical function. The zooming driving component and the compensating driving component of the adjustable optical component can be electrically connected with the outside through the bearing base. Further, the carrier base may include a pad assembly 910 (refer to fig. 6), and the pad assembly 910 is electrically connected to the carrier base. The pad assembly 910 may provide an array of electrodes to carry electrical signals to and from the base.

Further, in an embodiment of the present application, the fixed optical component is fixed to one side of the adjustable optical component (for example, may be fixed to one side of the housing) by means of glue bonding, and the photosensitive component is fixed to the other side of the adjustable optical component (for example, may be fixed to the other side of the housing). The fixed optical component has a dimension, other than the height direction, that is smaller than the adjustable optical component.

Further, FIG. 14 shows a side view schematic of a photosensitive assembly in one embodiment of the present application. Referring to fig. 14, in the present embodiment, the photosensitive assembly 400 includes a circuit board assembly and a filter assembly, the filter assembly is fixed on the circuit board assembly, and the photosensitive assembly 400 is adhered to the tunable optical assembly through the filter assembly. The circuit board assembly comprises a circuit board 410 and a photosensitive element 420, wherein the circuit board 410 comprises a circuit board main body, a connector and a flexible connecting belt for connecting the circuit board main body and the connector. The photosensitive element 420 may be a photosensitive chip, and the back surface of the photosensitive chip is adhered to the circuit board 410 (adhered to the circuit board main body) and electrically connected to the circuit board 410. The filter assembly includes a filter holder 430, and a filter element 440 adhesively fixed to the filter holder 430.

FIG. 15 shows a schematic side view of a photosensitive assembly in another embodiment of the present application. Referring to fig. 15, in the present embodiment, the filter holder may be a molding portion 430a, and the molding portion 430a is formed on the surface of the circuit board 410 (circuit board main body) in an integrally forming manner through a molding process. In this embodiment, the molding portion 430a may cover the electronic components 450, such as capacitors and resistors, on the circuit board. The design can enhance the structural strength of the photosensitive assembly and reduce the influence of dirt on the electronic component 450 and the circuit board 410 on the photosensitive chip.

Further, fig. 16 shows a schematic perspective view of the photosensitive assembly and the driving circuit board in an embodiment of the present application. Referring to fig. 16, in the present embodiment, the circuit board main body of the circuit board 410 is connected to a connector (not shown) through a first connecting tape, so that the photosensitive element 420 is electrically connected to the outside through the connector. The circuit board main body is further connected to a driving circuit board 460 through a second connecting band 410a, the driving circuit board 460 may be internally provided with driving circuits of the zoom driving assembly and the compensation driving assembly, and the driving circuits may be electrically connected to the photosensitive assembly 400 through the second connecting band 410 a. Both the first and second connecting straps 410a may be flexible, wherein the second connecting strap 410a may be bent about 90 degrees. The drive circuit board may be arranged at a side of the housing of the adjustable optical component, in particular at a side where the drive component is mounted. The side of the adjustable optical component housing may be apertured to electrically connect the drive circuit board with the zoom drive component (e.g., zoom coil) and the compensation drive component (e.g., compensation coil). In another embodiment, the driving circuit board may be electrically connected to a pad assembly of the load-bearing base seat (which is located at a side of the load-bearing base seat), thereby realizing that the driving circuit board may be electrically connected to the zoom driving assembly (e.g., zoom coil) and the compensation driving assembly (e.g., compensation coil) through the load-bearing base seat.

Further, in an embodiment of the present application, the periscopic optical zoom module may further include a module housing, where the module housing has an opening adapted to provide a passage for the fixed optical component to collect light and protect the fixed optical component from external force.

Further, in an embodiment of the present application, the outer surfaces of the components of the periscopic optical zoom module may be blackened (e.g., blackened) to reduce the influence of stray light between the optical components during zooming. Specifically, the inner side surface of the shell can be subjected to blackening treatment; the guide rod (comprising a first guide rod and a second guide rod), the coil (comprising a zooming coil and a compensating coil), the magnetic element (comprising a zooming magnetic element and a compensating magnetic element), the bearing base, the zooming carrier and the compensating carrier can be blackened.

In the above embodiments, the reflecting prism may be replaced by other light turning elements, for example in some embodiments the reflecting prism may be replaced by a mirror and a mirror support.

Further, in an embodiment of the present application, a solution of a carrier integrated design of a lens barrel and a driving mechanism is provided for a feature that a telephoto camera module has a large volume, so as to reduce the module volume. Specifically, on the premise that the size of the driving mechanism is difficult to reduce, the zoom carrier and the compensation carrier of the driving mechanism can be integrated with the zoom lens barrel and the compensation lens barrel, so that the zoom group and the compensation group are directly installed in the zoom carrier and the compensation carrier, and the size of the module is reduced. In this embodiment, the driving mechanism may include a zooming carrier (also referred to as a zooming carrier structure), a compensation carrier (also referred to as a compensation carrier structure), a carrier base, two guide rods, a zooming driving assembly for driving the zooming carrier structure to move relative to the carrier base, and a compensation driving assembly for driving the compensation carrier structure to move relative to the carrier base. In particular, in an embodiment of the present application, only the zoom lens barrel may be integrated with the zoom carrier, constituting the zoom bearing structure in the previous embodiment. Fig. 17 is a perspective view of a zoom carrier based on an integrated design of a carrier and a lens barrel in an embodiment of the present application. Fig. 18 shows a schematic cross-sectional view of a zoom carrier based on a design in which the carrier is integrated with a lens barrel in an embodiment of the present application. Referring to fig. 17 and 18, in the present embodiment, the zoom carrier 914 (i.e. zoom carrier structure) has a first through hole (i.e. zoom through hole 914 a), and four lenses (i.e. zoom optical lenses 210) are directly mounted in the first through hole and assembled together through the first through hole to form a zoom group.

In another embodiment, only the compensation lens barrel may be integrated with the compensation carrier to form the compensation bearing structure in the previous embodiment. Fig. 19 shows a schematic perspective view of a compensation carrier based on an integrated design of a carrier and a lens barrel in an embodiment of the present application. Fig. 20 shows a schematic cross-sectional view of a compensation carrier based on a carrier and barrel integrated design in an embodiment of the present application. Referring to fig. 19 and 20, in the present embodiment, the compensation carrier 915 (i.e., the compensation carrier structure) has a second through hole (i.e., the zoom through hole 915 a), and three lenses (the compensation optical lenses 310) are directly mounted in the first through hole and assembled together through the through holes to form a compensation group. In this embodiment, the distance between the second and third compensating optical lenses is long, and a cylindrical support 311 may be used to support the two compensating optical lenses so that the distance between the two compensating optical lenses is always maintained at the distance required by the optical design.

In the above embodiments, when the optical system of the telephoto lens is designed, one of the zoom optical component and the compensation optical component may have a larger size, and therefore, the carrier and the lens barrel are integrated only on the optical component having the larger size, thereby effectively achieving miniaturization of the module. Of course, in another embodiment, the zoom optical assembly and the compensation optical assembly may employ both load bearing structures instead of the barrel and carrier when both optical assemblies are oversized to meet requirements. In this embodiment, the lenses of the zoom optical assembly are assembled together to form a zoom group, and the lenses of the compensation optical assembly are assembled together to form a compensation group. The lenses of the zooming group are directly arranged in the first through hole of the zooming bearing structural part and are assembled together through the zooming bearing structural part; and the lenses of the compensation group are directly arranged in the second through hole of the compensation bearing structural part and are assembled together through the compensation bearing structural part.

Furthermore, in order to avoid the influence of shake on the long-focus camera module in the shooting process, an anti-shake device is added to avoid the occurrence of the situation. Because this application telephoto lens is suitable for carrying out optics and zooms, zoom lens and actuating mechanism interlock, and the prism also can cause the optical axis to be misaligned between every subassembly of camera lens because of removing, it is difficult to set up anti-shake device on the camera lens. Therefore, the anti-shake structure can be arranged in the photosensitive assembly, for example, the MEMS micro-motor system can be controlled to drive the photosensitive element to move, and shake of the long-focus camera module in the shooting process can be compensated. Or, the long-focus camera module is arranged in the holder to prevent shaking.

3. Assembly scheme

According to one embodiment of the present application, there is provided a periscopic continuous optical zoom module (sometimes simply referred to as a periscopic optical zoom module or a periscopic optical zoom module) including a fixed optical assembly, an adjustable optical assembly, and a photosensitive assembly. The fixed optical assembly may include a light turning element and at least two optical lenses disposed at both sides of the light turning element. For example, the fixed optical assembly described above may have three fixed optical lenses, two of which are located on the light-entrance side of the light-turning element (e.g., a reflecting prism) and one of which is located on the light-exit side of the light-turning element. Due to the position offset of the light turning element in the middle, the optical axis of the light beam emitted from the light turning element and the optical axis of the lens on the emitting surface side of the light turning element are greatly offset, and in severe cases, the optical system composed of the fixed optical assembly, the zoom optical assembly and the compensation optical assembly may not be able to normally form an image. Therefore, in the present embodiment, the fixed optical component can be assembled by active calibration. Fig. 21 is a schematic diagram illustrating active calibration of a fixed lens assembly of the periscopic optical zoom module in an embodiment of the present application. Referring to fig. 21, in the present embodiment, the fixed optical assembly 100 may include: a light turning element 110, at least one light-entering side lens 115, at least one light-exiting side lens 116, and a fixing member housing 120. The light turning element 110 has a reflection surface for turning incident light, and an incident surface and an exit surface. The fixing assembly housing 120 includes an incident light side lens barrel portion 121, an emergent light side lens barrel portion 122, and a light turning element mounting portion 123, wherein the axes of the incident light side lens barrel portion 121 and the emergent light side lens barrel portion 122 are perpendicular to each other; the at least one light entrance lens 115 is mounted on the inner surface of the light entrance lens barrel 121, and the at least one light exit lens 116 is mounted on the inner surface of the light exit lens barrel 122; the optical turning element mounting portion 123 is disposed on the light entrance side lens barrel portion 121 near one end of the reflection surface (i.e., the end near the bottom of the light entrance side lens barrel portion in fig. 1), and the light exit side lens barrel portion 122 near one end of the reflection surface (i.e., the end near the left side of the light exit side lens barrel portion 122 in fig. 1). In this embodiment, the light turning element is fixed to the light turning element mounting portion, and a relative position of the light turning element and the light turning element mounting portion is determined by active calibration. Specifically, the light turning element is a reflecting prism, the reflecting prism has two prism side faces, and each prism side face intersects with the reflecting face, the incident face and the emergent face. The light-turning element mounting portion may have two housing sidewalls so as to form a groove-like receiving structure, and the prism may be interposed between the two housing sidewalls, i.e., in the receiving structure. Fig. 22 is a schematic side view of the relative positions of the fixing assembly housing and the light turning element in one embodiment of the present application, from the perspective of fig. 21 along the positive direction of the x-axis. Referring to fig. 22, in the present embodiment, the prism side surface 110a of the light turning element 110 and the housing sidewall 120a may have a non-zero inclination angle therebetween. This tilt angle is a calibration result determined by the active calibration. The active calibration is a process of sequentially arranging the at least one light-entering lens 115, the light turning element 110, the at least one light-exiting lens 116, the zooming optical component 200, the compensating optical component 300, and the photosensitive component 400 to form a periscopic telephoto optical imaging system (refer to fig. 21), and then adjusting the relative position of each optical element according to an actual telephoto imaging result obtained by electrifying the photosensitive component. More specifically, in this embodiment, the active calibration includes a first active calibration, and the first active calibration is a process of sequentially arranging the at least one light-incident-side lens, the light-turning element, the at least one light-emitting-side lens, the zooming optical component, the compensating optical component, and the photosensitive component to form the periscopic telephoto optical imaging system when the light-turning element 110 and the fixed component housing 120 are separated from each other, and then calibrating the relative positions of the light-turning element and the light-turning element mounting portion according to an actually measured telephoto imaging result obtained by electrifying the photosensitive component.

Further, in one embodiment of the present application, the inclination angle between the prism side 110a and the housing sidewall 120a (refer to fig. 22) is less than 1 degree. Still further, in a preferred embodiment of the present application, the inclination angle between the prism side and the housing side wall is less than 0.5 degrees.

Further, in an embodiment of this application, the prism side with inclination between the casing lateral wall has first direction of rotation component and second direction of rotation component, wherein first direction of rotation component is the rotatory rotational component around the x-axis, the second direction of rotation component is the rotatory rotational component around the y-axis, the x-axis with the principal optical axis direction of long focus optical imaging system is unanimous (promptly with the optical axis direction of fixed optical assembly's emergent light one side is unanimous). Referring to fig. 21 and 22 in combination, the y-axis is perpendicular to the x-axis and the z-axis, which coincides with the optical axis direction of the incident light side of the fixed optical component.

Further, in one embodiment of the present application, the spacing between the prism side and the housing sidewall may be 10-100 μm.

Further, in one embodiment of the present application, the prism side includes a first prism side and a second prism side located opposite thereto, the housing side includes a first housing side and a second housing side located opposite thereto, and a distance between the first prism side and the first housing side may not be equal to a distance between the second prism side and the second housing side. That is, during the active calibration, the light-turning element 110 may be translated along the y-axis, and the final position of the central axis of the light-turning element 110 determined by the active calibration may have an offset with respect to the central axis of the housing of the fixed component.

Further, in an embodiment of the present application, the light turning element is supported and fixed on the light turning element mounting portion by a rubber material.

Further, in an embodiment of the present application, an end of the light incident side lens barrel portion close to the reflection surface has a first end surface, and an end of the light exit side lens barrel portion close to the reflection surface has a second end surface; the arrangement position of the rubber material may include: one or more of a gap between the light incident surface and the first end surface, a gap between the second end surface and the exit surface, and a gap between the prism side surface and the housing side wall. For example, in one example, the adhesive material for bonding the light turning element and the light turning element mounting portion may be disposed only in the gap between the light incident surface and the first end surface. In another example, a glue material for bonding the light-turning element and the light-turning element mounting portion may be disposed only in a gap between the prism side face and the housing side wall. In yet another example, the adhesive material for bonding the light turning element and the light turning element mounting part may be simultaneously disposed in a gap between the light incident surface and the first end surface, and a gap between the second end surface and the exit surface. In yet another example, the adhesive material for bonding the light-turning element and the light-turning element mounting portion may be simultaneously disposed in a gap between the light incident surface and the first end surface, a gap between the second end surface and the light exit surface, and a gap between the prism side surface and the housing side wall.

Further, in one embodiment of the present application, the glue material is adapted to be cured by one or more of visible light, ultraviolet light, and baking.

In the above embodiment, in the fixing module housing, the light incident side lens barrel portion, the light exit side lens barrel portion, and the light turning element mounting portion are integrally formed. For example, may be integrally formed by an injection molding process.

In some modified embodiments of the present application, in the fixed component housing, one of the light entrance side barrel part and the light exit side barrel part is formed separately, and the other one and the light turning element mounting part are formed integrally to form an integrally formed member, and the separately formed member is fixed to the integrally formed member to form the fixed component housing. Wherein the relative position of the separately formed member and the integrally formed member may be determined by the active calibration. In particular, fig. 23 shows a schematic cross-sectional view of a fixed optical component in a variant embodiment of the present application. Referring to fig. 23, the light entrance side lens barrel portion 121 may be separately molded. The light exit side lens barrel portion 122 and the light turning element mounting portion 123 are integrally molded to constitute an integrally molded member 124.

Fig. 24 shows a schematic cross-sectional view of a fixed optical component in another variant embodiment of the present application. Referring to fig. 24, in the present embodiment, the light entrance side lens barrel portion 121 and the light turning element mounting portion 123 may be integrally formed to constitute an integrally formed member 124. And the light-exit side barrel portion 122 may be separately molded.

Further, in a variant embodiment of the application, the gap between the separately moulded member and the integrally moulded member in the fixture housing is 10-100 μm, which gap may be adapted for active alignment and for arranging an adhesive glue.

Further, in a modified embodiment of the present application, in the fixed optical assembly, the separately formed component is the light incident side lens barrel portion, and the optical axis of the light turning element on the light incident side thereof and the axis of the light incident side lens barrel portion have an included angle different from zero. In another embodiment of deformation of this application, the fashioned component alone does light-emitting side lens section of thick bamboo, the optical axis of light turning element in its light-emitting side with the axis of light-emitting side lens section of thick bamboo has the contained angle that is not zero. The non-zero angle is determined by active calibration.

Further, in an embodiment of the present application, in the periscopic optical zoom camera module, the adjustable optical assembly may include a driving mechanism, a zoom optical assembly, and a compensation optical assembly, where the driving mechanism includes a driving element and an adjustable assembly housing, the driving element is adapted to respectively drive the zoom optical assembly and the compensation optical assembly to move along an x-axis with respect to the adjustable assembly housing, and the x-axis is in the same direction as a main optical axis of the telephoto optical imaging system. The photosensitive assembly comprises a filtering assembly, a photosensitive chip and a circuit board. Fig. 25 is an assembly diagram of the periscopic optical zoom module in an embodiment of the present application. Referring to FIG. 25, in this embodiment, the fixed component housing is fixed to the adjustable component housing and the relative position of the fixed component housing and the adjustable component housing is determined by a second active calibration; the second active calibration is to arrange the fixed optical assembly, the zoom optical assembly, the compensation optical assembly, and the photosensitive assembly in sequence to form the periscopic tele optical imaging system when the fixed optical assembly 100 and the adjustable optical assembly 900 are separated from each other, and then calibrate the relative positions of the fixed assembly housing and the adjustable assembly housing according to the measured tele imaging result obtained by electrifying the photosensitive assembly.

Further, in one embodiment of the present application, there is a gap between the fixed optical component 100 and the adjustable optical component 900 (refer to fig. 25), and the gap has a pitch of 10-100 μm.

Further, in an embodiment of the present application, an optical axis of the light exit side of the fixed optical component and an optical axis of the adjustable optical component may have an included angle different from zero.

Further, in an embodiment of the present application, an included angle between an optical axis of the light exit side of the fixed optical component and an optical axis of the adjustable optical component is less than 1 degree. Furthermore, in a preferred embodiment of the present application, an included angle between an optical axis of the light-emitting side of the fixed optical component and an optical axis of the adjustable optical component is less than 0.5 degrees.

There is also provided, in accordance with an embodiment of the present application, a method of assembling the fixed optical assembly. Referring collectively to fig. 21, the method of assembling the fixed optical assembly includes the following steps.

Step S1, preparing a fixing assembly housing 120, a light turning element 110, at least one light-incident side lens 115 and at least one light-exiting side lens 116, wherein the light turning element 110 has a reflection surface, an incident surface and an exit surface for turning incident light, the fixing assembly housing 120 includes a light-incident side lens barrel 121, a light-exiting side lens barrel 122 and a light turning element mounting portion 123, and axes of the light-incident side lens barrel 121 and the light-exiting side lens barrel 122 are perpendicular to each other; the at least one light entrance lens 115 is mounted on the inner surface of the light entrance lens barrel 121, and the at least one light exit lens 116 is mounted on the inner surface of the light exit lens barrel 122; the light turning element mounting portion 123 is disposed at one end of the light entrance side lens barrel portion 121 close to the reflection surface, and at one end of the light exit side lens barrel portion 122 close to the reflection surface.

Step S2, respectively taking the light turning element 110 and the fixing component housing 120 in which the at least one light-in side lens 115 and the at least one light-out side lens 116 are installed, and sequentially arranging the at least one light-in side lens 115, the light turning element 110, the at least one light-out side lens 116, the zooming optical component 200, the compensating optical component 300, and the photosensitive component 400 to form a periscopic telephoto optical imaging system, thereby completing the pre-positioning. Referring to fig. 21, fig. 21 can be regarded as a state after the pre-positioning is completed.

And S3, performing active calibration, and calibrating the relative position of the light turning element and the light turning element mounting part according to an actually measured long-focus imaging result obtained by electrifying the photosensitive assembly. The active calibration comprises moving the light-turning element in at least one of an x-axis translation, a y-axis translation, a z-axis translation, a rotation about the x-axis, a rotation about the y-axis, and a rotation about the z-axis; wherein the x-axis with the chief ray axis direction of long focus optical imaging system is unanimous (promptly with the optical axis direction of the emergent light one side of fixed optical assembly is unanimous), the y-axis perpendicular to the x-axis with the z-axis, the z-axis with the optical axis direction of the incident light one side of fixed optical assembly is unanimous.

And S4, bonding the light turning element and the light turning element mounting part based on the relative position determined by the active calibration. In this step, the light turning element and the light turning element mounting portion may be bonded by a glue material, the glue material being suitable for curing by one or more of visible light, ultraviolet light, and baking.

In an embodiment of the present application, a glue material may be disposed first, then the step S3 is performed to complete the active calibration, and then the glue material is cured by one or more of visible light, ultraviolet light, and baking.

In another embodiment of the present application, the step S3 may be performed to complete the active calibration, then a glue material is disposed, the light turning element and the light turning element mounting portion are restored to the relative position determined by the active calibration, and finally the glue material is cured by one or more of visible light, ultraviolet light, and baking.

According to another embodiment of the present application, there is also provided another method of assembling a fixed optical assembly, which may include the following steps.

Step S1', preparing a first and a second fixed sub-lenses 130 and 140 (refer to fig. 24) separated from each other, wherein the first fixed sub-lens includes the light turning element 110, at least one light-entering-side lens 115, and a first housing member including the light-entering-side lens barrel portion 121 and the light turning element mounting portion 123; the second fixed sub-lens includes at least one light exit side lens 116 and a second housing member including a light exit side lens barrel portion 122; the at least one light-incident side lens 115 is mounted on the inner side surface of the light-incident side lens barrel portion 121, the light turning element 110 is mounted on the light turning element mounting portion 123, and the at least one light-emitting side lens 116 is mounted on the inner side surface of the light-emitting side lens barrel portion 122.

Step S2', respectively taking the first fixed sub-lens 130 and the second fixed sub-lens 140, so that the axes of the light-incident side lens barrel portion 121 and the light-emitting side lens barrel portion 122 are substantially perpendicular to each other, and sequentially arranging the at least one light-incident side lens, the light turning element, the at least one light-emitting side lens, the zooming optical assembly, the compensating optical assembly, and the photosensitive assembly to form a periscopic telephoto type telephoto optical imaging system, thereby completing the pre-positioning.

And S3', performing active calibration, and calibrating the relative positions of the first stator lens and the second stator lens according to an actually-measured long-focus imaging result obtained by electrifying the photosensitive assembly.

And S4', bonding the first fixed sub-lens and the second fixed sub-lens based on the relative position determined by the active calibration.

According to yet another embodiment of the present application, there is provided another method of assembling a fixed optical component, which may include the following steps.

Step S1 ″, preparing a first fixed sub-lens 130 and a second fixed sub-lens 140 (refer to fig. 23) separated from each other, wherein the first fixed sub-lens 130 includes at least one light-entrance-side lens 115 and a first housing member including a light-entrance-side lens barrel portion 121; the second fixed sub-lens 140 includes a light-turning element 110, at least one light-exiting-side lens 116, and a second housing member including a light-exiting-side lens barrel portion 122 and a light-turning-element mounting portion 123; the at least one light-incident side lens 115 is mounted on the inner side surface of the light-incident side lens barrel portion 121, the light turning element 110 is mounted on the light turning element mounting portion 123, and the at least one light-emitting side lens 116 is mounted on the inner side surface of the light-emitting side lens barrel portion 122.

Step S2 ″, the first fixed sub-lens 130 and the second fixed sub-lens 140 are respectively captured, so that the axes of the light-incident side lens barrel portion 121 and the light-emitting side lens barrel portion 122 are substantially perpendicular to each other, and the at least one light-incident side lens, the light turning element, the at least one light-emitting side lens, the zoom optical assembly, the compensation optical assembly, and the photosensitive assembly are sequentially arranged to form a periscopic telephoto optical imaging system, thereby completing pre-positioning.

And S4' bonding the first fixed sub-lens and the second fixed sub-lens based on the relative position determined by the active calibration.

Further, according to another embodiment of the present invention, another assembling method of fixing an optical assembly is also provided. All fixed lenses of the fixed optical assembly are located on the same side of the reflecting prism, namely all fixed lenses are located on the light incident side of the reflecting prism, or all fixed lenses are located on the light emergent side of the reflecting prism. The following description will be given taking as an example a case where all the fixed lenses are located on the light incident side of the reflection prism. For example, the fixed optical component, the zoom optical component, the compensation optical component may have two, five and three lenses, respectively. Fig. 26 shows a completed fixed optical assembly in another embodiment of the present application. Referring to fig. 26, in the present embodiment, the two lenses of the fixed optical assembly are both disposed on the light-incident side of the reflection prism (i.e., the light turning element 110), and thus the two fixed lenses can be referred to as light-incident side lenses 115. In this embodiment, the method for assembling the fixed optical component may include the following steps.

A step S1 of preparing a first fixed sub-lens and a second fixed sub-lens that are separated from each other, wherein the first fixed sub-lens includes at least one fixed lens and a lens barrel portion; the second fixed sub-lens includes a light turning element 110 and a light turning element mounting part 123; the at least one fixed lens is attached to the inner surface of the lens barrel portion, and the light turning element 110 is attached to the light turning element attachment portion 123. In the present embodiment, the fixed lens is the light entrance side lens 115 (or the light exit side lens), and the lens barrel portion is the light entrance side lens barrel portion 121 (or the light exit side lens barrel portion).

And S2, respectively shooting the first fixed sub-lens and the second fixed sub-lens, and arranging the at least one fixed lens, the light turning element, the zooming optical assembly, the compensating optical assembly and the photosensitive assembly into a periscopic long-focus optical imaging system so as to finish pre-positioning.

And S3, performing active calibration, and calibrating the relative positions of the first stator lens and the second stator lens according to an actual measurement long-focus imaging result obtained by electrifying the photosensitive assembly. And

and S4, bonding the first fixed sub-lens and the second fixed sub-lens based on the relative position determined by the active calibration. In the embodiment, active calibration is not required to be performed in two substantially vertical directions, so that the difficulty of active calibration and the difficulty of assembly of the fixed optical component can be reduced.

Further, according to another embodiment of the present invention, another assembly method for fixing an optical assembly is also provided. All the fixed lenses of the fixed optical assembly are located on the same side of the reflecting prism, namely all the fixed lenses are located on the light inlet side of the reflecting prism, or all the fixed lenses are located on the light outlet side of the reflecting prism. The following description will be given by taking as an example a case where all the fixed lenses are located on the light incident side of the reflection prism. For example, the fixed optical component, the zoom optical component, the compensation optical component may have two, five and three lenses, respectively. The two lenses of the fixed optical assembly are both disposed on the light-incident side of the reflection prism (i.e., the light turning element), and thus the two fixed lenses can be referred to as light-incident side lenses. In this embodiment, the method for assembling the fixed optical component may include the following steps.

Step 1', preparing a first fixed sub-lens and a light turning element separated from each other, wherein the first fixed sub-lens includes at least one fixed lens and a fixed assembly housing; the fixed assembly shell comprises a lens barrel part and a light turning element mounting part, and the at least one fixed lens is mounted on the inner side surface of the lens barrel part; the fixed lens is a light entrance side lens (or a light exit side lens), and the lens barrel portion is a light entrance side lens barrel portion (or a light exit side lens barrel portion).

And 2', respectively taking the first fixed sub-lens and the light turning element, and arranging the at least one fixed lens, the light turning element, the zooming optical assembly, the compensating optical assembly and the photosensitive assembly into a periscopic telephoto optical imaging system so as to complete pre-positioning.

And 3', performing active calibration, and calibrating the relative position of the first stator lens and the light turning element according to an actually measured long-focus imaging result obtained by electrifying the photosensitive assembly.

And 4', bonding the first fixed sub-lens and the light turning element based on the relative position determined by the active calibration.

Compared with the previous embodiment, in the present embodiment, the active calibration and the arrangement position of the glue material for curing the active calibration result are different. In this embodiment, since active alignment in two substantially perpendicular directions is not required, the difficulty of active alignment and the difficulty of assembly of the fixed optical device can be reduced.

According to an embodiment of the application, there is also provided an assembling method of the periscopic optical zoom module, which includes the following steps.

Step S10 of preparing the fixed optical assembly 100, the adjustable optical assembly 900 and the photosensitive assembly 400 (refer to fig. 25) separated from each other; wherein the fixed optical component can be assembled based on the assembling method of the fixed optical component of any of the foregoing embodiments. The adjustable optical assembly 900 may comprise a drive mechanism including a drive element and an adjustable assembly housing, a zoom optical assembly and a compensation optical assembly, the drive element being adapted to drive the zoom optical assembly and the compensation optical assembly, respectively, to move relative to the adjustable assembly housing along an x-axis, the x-axis being aligned with a main optical axis of the tele optical imaging system. The photosensitive assembly can comprise a light filtering assembly, a photosensitive chip and a circuit board.

Step S20, respectively taking the fixed optical assembly 100 and the adjustable optical assembly 900, and sequentially arranging the at least one light-incident-side lens, the light turning element, the at least one light-emitting-side lens, the zoom optical assembly, the compensation optical assembly, and the photosensitive assembly to form a periscopic telephoto optical imaging system, thereby completing the pre-positioning.

And S30, performing active calibration, and calibrating the relative positions of the fixed optical assembly and the adjustable optical assembly according to an actually measured long-focus imaging result obtained by electrifying the photosensitive assembly.

Step S40 of bonding the fixed optical component and the adjustable optical component based on the relative position determined by the active calibration.

According to another embodiment of the present application, there is provided another assembling method of a periscopic optical zoom module, and fig. 27 shows an assembling schematic diagram of the periscopic optical zoom module in another embodiment of the present application. Referring to fig. 27, the assembly method of the periscopic optical zoom module in the present embodiment includes the following steps.

Step S10', the first and second fixed

sub-lenses

130 and 140, the adjustable optical assembly 900, and the photosensitive assembly 400, which are separated from each other, are prepared. The first fixed sub-lens 130 includes a light turning element, at least one light-incident side lens, and a first housing member, where the first housing member includes a light-incident side lens barrel portion and a light turning element mounting portion; the second fixed sub-lens 140 includes at least one light exit side lens and a second housing member including a light exit side lens barrel portion; at least one income light side lens install in go into the medial surface of light side lens barrel portion, the light turning component install in light turning component installation department, at least one play light side lens install in the medial surface of play light side lens barrel portion. The adjustable optical assembly 900 comprises a driving mechanism, a zooming optical assembly and a compensating optical assembly, wherein the driving mechanism comprises a driving element and an adjustable assembly housing, the driving element is suitable for respectively driving the zooming optical assembly and the compensating optical assembly to move along an x-axis relative to the adjustable assembly housing, and the x-axis is consistent with the direction of a main optical axis of the long-focus optical imaging system. The photosensitive assembly 400 includes a filter assembly, a photosensitive chip, a circuit board, and the like.

Step S20', respectively taking the first fixed sub-lens 130, the second fixed sub-lens 140, and the adjustable optical assembly 900, so that the axes of the light-incident side lens barrel portion and the light-emitting side lens barrel portion are substantially perpendicular to each other, and sequentially arranging the at least one light-incident side lens, the light turning element, the at least one light-emitting side lens, the zoom optical assembly, the compensation optical assembly, and the photosensitive assembly to form a periscopic telephoto optical imaging system, thereby completing pre-positioning.

And step S30', performing active calibration, and calibrating the relative position between the first fixed sub-lens and the second fixed sub-lens and the relative position between the second fixed sub-lens and the adjustable optical component according to an actually-measured long-focus imaging result obtained by electrifying the photosensitive component.

Step S40', bonding the first and second fixed sub-lenses and bonding the second fixed sub-lens and the adjustable optical component based on the relative position determined by the active calibration.

According to still another embodiment of the present application, there is provided still another assembling method of a periscopic optical zoom module, and fig. 28 shows an assembling schematic diagram of the periscopic optical zoom module in still another embodiment of the present application. Referring to fig. 28, the assembly method of the periscopic optical zoom module in the present embodiment includes the following steps.

Step S10 ″, the first and second fixed

sub-lenses

130 and 140, the adjustable optical assembly 900, and the photosensitive assembly 400, which are separated from each other, are prepared. The first fixed sub-lens 130 includes at least one light-incident side lens and a first housing member, and the first housing member includes a light-incident side lens barrel portion; the second fixed sub-lens 140 includes a light turning element, at least one light-emitting side lens, and a second housing member including a light-emitting side lens barrel portion and a light turning element mounting portion; the light turning element is arranged on the light turning element mounting part, and the at least one light-emitting side lens is arranged on the inner side surface of the light-emitting side lens barrel part. The adjustable optical assembly 900 comprises a driving mechanism, a zooming optical assembly and a compensating optical assembly, the driving mechanism comprises a driving element and an adjustable assembly housing, the driving element is suitable for respectively driving the zooming optical assembly and the compensating optical assembly to move along an x-axis relative to the adjustable assembly housing, and the x-axis is consistent with the direction of a main optical axis of the long-focus optical imaging system. The photosensitive assembly 400 includes a filter assembly, a photosensitive chip, a circuit board, and the like.

Step S20 ″ of taking the first fixed sub-lens 130, the second fixed sub-lens 140, and the adjustable optical assembly 900, respectively, so that the axes of the light-incident side lens barrel portion and the light-exit side lens barrel portion are substantially perpendicular to each other, and arranging the at least one light-incident side lens, the light turning element, the at least one light-exit side lens, the zoom optical assembly, the compensation optical assembly, and the photosensitive assembly in sequence to form a periscopic telephoto optical imaging system, thereby completing pre-positioning.

And step S30', active calibration is carried out, and the relative position between the first fixed sub-lens and the second fixed sub-lens and the relative position between the second fixed sub-lens and the adjustable optical component are calibrated according to an actually measured telephoto imaging result obtained by electrifying the photosensitive component.

Step S40 ″ bonding the first and second fixed sub-lenses and the second fixed sub-lens and the adjustable optical assembly based on the relative position determined by the active calibration.

Further, in an embodiment of the present application, another assembling method of the periscopic optical zoom module is also provided. In the periscopic optical zoom module, all the fixed lenses of the fixed optical components can be positioned at the light incident side. For example, fig. 29 is a schematic assembled state diagram showing a periscopic optical zoom lens in which fixed lenses may be located on both light-incident sides in one embodiment of the present application. In this embodiment, the fixed optical assembly 100, the zoom optical assembly 200, and the compensation optical assembly 300 may have two, five, and three lenses, respectively. The two lenses of the fixed optical assembly are both disposed on the light-incident side of the reflection prism (i.e., the light turning element), and thus the two fixed lenses can be referred to as light-incident side lenses. The assembling method of this embodiment can refer to the embodiment corresponding to fig. 21 (the difference between the two embodiments is only that the light-emitting side lens barrel portion is omitted from the fixing component housing of this embodiment), and the details are not repeated here. It should be noted that in the present embodiment, all lenses of the fixed optical assembly are located on the light incident side of the prism (i.e., the light turning element), so that the manufacturing difficulty of the fixed optical assembly can be reduced, and the risk of optical axis deviation can be reduced.

Further, fig. 30 is a schematic diagram illustrating an assembled state of the periscopic optical zoom module in an embodiment of the present application, in which the fixed lenses may be located at the light incident side. Referring to fig. 30, in an embodiment of the present application, the assembling method of the periscopic optical zoom module may include the following steps.

In step S100, the first and second fixed

sub-lenses

130 and 140, the adjustable optical assembly 900, and the photosensitive assembly 400, which are separated from each other, are prepared.

The first fixed sub-lens 130 includes a lens barrel portion and at least one fixed lens mounted on an inner side surface of the lens barrel portion; the second fixed sub-lens 140 includes a light turning element mounting portion and a light turning element mounted on the light turning element mounting portion; the fixed lens is an incident-side lens (in other embodiments, the fixed lens may also be an emergent-side lens), and the lens barrel portion is an incident-side lens barrel portion (in other embodiments, the lens barrel portion may also be an emergent-side lens barrel portion).

The adjustable optical assembly 900 comprises a driving mechanism, a zooming optical assembly and a compensating optical assembly, wherein the driving mechanism comprises a driving element and an adjustable assembly housing, the driving element is suitable for respectively driving the zooming optical assembly and the compensating optical assembly to move along an x-axis relative to the adjustable assembly housing, and the x-axis is consistent with the direction of a main optical axis of the long-focus optical imaging system.

The photosensitive assembly 400 includes a filter assembly, a photosensitive chip, a circuit board, and the like.

Step S200, capturing the first fixed sub-lens 130, the second fixed sub-lens 140 and the adjustable optical assembly 900, respectively, and arranging the at least one fixed lens, the light turning element, the zoom optical assembly, the compensation optical assembly and the photosensitive assembly into a periscopic telephoto optical imaging system, thereby completing the pre-positioning.

Step S300, performing active calibration, and calibrating the relative position between the first fixed sub-lens and the second fixed sub-lens and the relative position between the second fixed sub-lens and the adjustable optical component according to an actually measured telephoto imaging result obtained by electrifying the photosensitive component.

Step S400, bonding the first fixed sub-lens and the second fixed sub-lens to form a fixed optical assembly and bonding the fixed optical assembly and the adjustable optical assembly based on the relative position determined by the active calibration. In this embodiment, the bonding of the fixed optical component and the adjustable optical component is achieved by bonding a second fixed sub-lens to the adjustable optical component. It should be noted that when all the fixed lenses are located on the light exit side, the first fixed sub-lens is located between the second fixed sub-lens and the adjustable optical component, and at this time, the first fixed sub-lens is bonded to the adjustable optical component, so that the fixed optical component and the adjustable optical component are bonded.

In the above embodiments, the active calibration may comprise moving the light turning element in at least one of an x-axis translation, a y-axis translation, a z-axis translation, a rotation about an x-axis, a rotation about a y-axis, and a rotation about a z-axis; wherein the x-axis with the chief ray axis direction of long focus optical imaging system is unanimous (promptly with the optical axis direction of the emergent light one side of fixed optical assembly is unanimous), the y-axis perpendicular to the x-axis with the z-axis, the z-axis with the optical axis direction of the incident light one side of fixed optical assembly is unanimous. After the active calibration is completed, the light turning element and the light turning element mounting part can be bonded through a glue material, and the glue material is suitable for curing through one or more modes of visible light, ultraviolet rays and baking.

In the above embodiments, the glue material may be arranged first, then the active calibration is completed, and then the glue material is cured by one or more of visible light, ultraviolet light, and baking; or the active calibration can be completed first, then the glue material is arranged, then the two or more parts for active calibration are restored to the relative positions determined by the active calibration, and finally the glue material is cured by one or more modes of visible light, ultraviolet rays and baking.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An adjustable optical assembly for an optical zoom module, the adjustable optical assembly comprising:

a load bearing base;

a zoom optical assembly comprising a zoom group of at least one lens;

a compensating optical assembly comprising a compensating group of at least one lens; and

a drive mechanism, comprising:

the bottom end of the bracket is connected with the bearing base, and the top end of the bracket is provided with a top groove with an upward opening;

the guide rod is erected in the top groove, and the direction of the optical axis of the guide rod is consistent with that of the zoom optical assembly and that of the compensation optical assembly;

a zoom carrier having a first through hole;

a compensation carrier having a second through hole;

a zoom drive assembly including a zoom coil and a zoom magnetic element; and

a compensation drive assembly including a compensation coil and a compensation magnetic element;

the zooming carrier is arranged on the guide rod and can slide along the guide rod under the driving of the zooming driving component; the compensation carrier is arranged on the guide rod and can slide along the guide rod under the driving of the compensation driving component; the zooming coil and the zooming magnetic element are respectively fixed on the bearing base and the zooming carrier; the compensation coil and the compensation magnetic element are respectively fixed on the bearing base and the compensation carrier;

the lenses of the zooming group are directly arranged in the first through hole and are assembled together through the zooming carrier; or the lenses of the compensation group are directly arranged in the second through hole and assembled together through the compensation carrier;

wherein the height of the top surface of the guide rod does not exceed the top surface of the zooming carrier; or the height of the top surface of the guide rod is higher than that of the top surface of the zooming carrier, and the height difference between the top surface of the guide rod and the top surface of the zooming carrier is not more than 0.4mm; the guide rod comprises a first guide rod and a second guide rod; the zoom carrier has a top side, a bottom side, a drive side and a driven side facing away from the drive side, the zoom drive assembly being disposed on the drive side; the first guide rod is arranged on the driven side, and the second guide rod is arranged on the driving side.

2. An adjustable optical assembly according to claim 1, wherein the first through hole has a cut circle shape in which a top and a bottom of the circle are cut.

3. An adjustable optical assembly according to claim 2, wherein the top side, the bottom side and the driven side of the zoom carrier have a top side wall, a bottom side wall and a driven side wall, respectively, the top side wall and the bottom side wall having a smaller thickness than the driven side wall.

4. An adjustable optical assembly according to claim 2, wherein the driven side and the driving side of the zoom carrier each have a guide rod mounting structure adapted to mount the first guide rod or the second guide rod.

5. An adjustable optical assembly according to claim 4, wherein the guide bar mounting structure is a lateral guide bar slot having an opening direction perpendicular to an opening direction of the top recess of the bracket.

6. The adjustable optical assembly according to claim 4, wherein the guide bar mounting structure is a guide bar through hole through which the guide bar passes.

7. An adjustable optical assembly according to claim 6, wherein the guide rod through hole has a cross section of a rounded triangle, and a ball is disposed between the guide rod and the guide rod through hole.

8. An adjustable optical assembly according to claim 4, wherein the guide bar mounting structure comprises a guide bar through hole or a guide bar groove; the driving side of the zooming carrier is provided with the guide rod through hole, the guide rod penetrates through the guide rod through hole, the driven side of the zooming carrier is provided with a lateral guide rod groove, and the opening direction of the lateral guide rod groove is perpendicular to the opening direction of the top groove of the bracket.

9. An adjustable optical assembly according to claim 8, wherein the driving side of the zoom carrier has a groove-like structure in which the zoom magnetic element is insertedly fixed.

10. An adjustable optical assembly according to claim 9, wherein the zoom coil is fixed to the carrying base, and the zoom magnetic element has a plate shape with a surface facing the zoom coil.

11. A tunable optical assembly according to claim 1, wherein the second through hole has a cut circle shape in which a top and a bottom of the circle are cut to form a shape.

12. An adjustable optical assembly according to claim 11, wherein the guide rod comprises a first guide rod and a second guide rod; the compensating carrier has a top side, a bottom side, a drive side and a driven side facing away from the drive side, the compensating drive assembly being disposed on the drive side; the first guide rod is arranged on the driven side, and the second guide rod is arranged on the driving side.

13. A tunable optical assembly according to claim 12, wherein the top side, the bottom side and the driven side of the compensation carrier have a top side wall, a bottom side wall and a driven side wall, respectively, the top side wall and the bottom side wall having a smaller thickness than the driven side wall.

14. An adjustable optical assembly according to claim 12, wherein the driven side and the drive side of the compensation carrier each have a guide rod mounting structure adapted to mount the first guide rod or the second guide rod.

15. An adjustable optical assembly according to claim 14, wherein the guide bar mounting structure comprises a guide bar through hole or a guide bar groove; the driving side of the zooming carrier is provided with the guide rod through hole, the guide rod penetrates through the guide rod through hole, the driven side of the zooming carrier is provided with a lateral guide rod groove, and the opening direction of the lateral guide rod groove is perpendicular to the opening direction of the top groove of the bracket.

16. An adjustable optical assembly according to claim 15, wherein the guide rod through bore has a cross section of rounded triangle, and a ball is disposed between the guide rod and the guide rod through bore.

17. An adjustable optical assembly according to claim 15, wherein the compensation carrier has a magnetic element mounting structure formed extending laterally outwardly from below over the second guide bar; the compensation magnetic element is a bar magnet, the axis of the bar magnet is consistent with the optical axis of the compensation optical assembly, one end of the bar magnet is connected with the magnetic element mounting structure, the other end of the bar magnet is a free end, and the bar magnet can extend into the compensation coil.

18. An adjustable optical assembly according to claim 1, comprising a housing comprising the carrier base and a cover adapted to the carrier base.

19. An adjustable optical assembly according to claim 1, wherein the carrier base includes a pad assembly, and the zoom drive assembly and the compensation drive assembly are electrically connected to the outside through the carrier base.

20. A periscopic optical zoom module, comprising:

an adjustable optical assembly;

a fixed optical assembly comprising a light turning element, a zoom optical assembly disposed between the light turning element and a compensation optical assembly; and

a photosensitive assembly, the compensation optical assembly disposed between the zoom optical assembly and the photosensitive assembly;

wherein the adjustable optical assembly comprises:

a load bearing base;

a zoom optical assembly comprising a zoom group of at least one lens;

a drive mechanism, comprising:

a zoom carrier having a first through hole;

a compensation carrier having a second through hole;

a zoom drive assembly including a zoom coil and a zoom magnetic element; and

the lenses of the zooming group are directly arranged in the first through hole and are assembled together through the zooming carrier; or the lenses of the compensation group are directly mounted on the second through hole and assembled together through the compensation carrier.

21. A periscopic optical zoom module according to claim 20, wherein the photosensitive assembly comprises a circuit board body, a photosensitive element mounted on a surface of the circuit board body, a color filter holder located on the surface of the circuit board body and surrounding the photosensitive element, and a color filter element mounted on the color filter holder.

22. A periscopic optical zoom module according to claim 21, wherein said color filter holder is a molding portion directly formed on the surface of said circuit board main body based on a molding process, said molding portion covering electronic components mounted on the surface of said circuit board main body and located outside said photosensitive elements.

23. A periscopic optical zoom module as claimed in claim 21, wherein the circuit board main body is connected to the connector via a first connecting strip, and the circuit board main body is further connected to a driving circuit board via a second connecting strip, the driving circuit board is internally provided with driving circuits of the zoom driving component and the compensation driving component, and the driving circuits are electrically connected to the photosensitive component via the second connecting strip.

24. A periscopic optical zoom module according to claim 23, wherein the adjustable optical assembly comprises a housing comprising the load-bearing base and a cover adapted to the load-bearing base;

the driving circuit board is arranged on the side face of the shell and electrically connected with the zooming driving assembly and the compensation driving assembly.

25. A periscopic optical zoom module according to claim 20, wherein the guide rods comprise a first guide rod and a second guide rod, wherein the second guide rod is located on a driving side where the zoom drive assembly and the compensation drive assembly are located, and the first guide rod is located on a driven side facing away from the zoom drive assembly and the compensation drive assembly;

the bracket comprises a first bracket for erecting the first guide rod and a second bracket for erecting the second guide rod, the first bracket is columnar, the second bracket comprises a columnar supporting part and a baffle, the baffle extends from the columnar supporting part to the driving side to form, and the baffle is suitable for separating the moving ranges of the zooming carrier and the compensating carrier.

26. A periscopic optical zoom module, comprising:

the tunable optical assembly of any one of claims 1-19;

a fixed optical assembly comprising a light turning element, the zoom optical assembly disposed between the light turning element and the compensating optical assembly; and

a photosensitive assembly, the compensation optical assembly disposed between the zoom optical assembly and the photosensitive assembly.