CN117075291A

CN117075291A - Lens, camera module and electronic equipment

Info

Publication number: CN117075291A
Application number: CN202311243617.1A
Authority: CN
Inventors: 黄长峰; 周航
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2023-11-17

Abstract

The application discloses a lens, a camera module and electronic equipment, and belongs to the technical field of electronic equipment. Comprising the following steps: a lens barrel enclosed to form a containing space; the lens group is arranged in the accommodating space along the light ray injection direction and is connected with the lens cone; the heat dissipation device is abutted to the lens group and used for conducting heat from the lens group to one surface, far away from the lens group, of the heat dissipation device.

Description

Lens, camera module and electronic equipment

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to a camera module and electronic equipment.

Background

With the development of intelligent mobile terminals, the shooting function of the intelligent mobile terminals has become a core function frequently used in daily life of people. The CMOS (Complementary Metal-Oxide Semiconductor) camera module is a camera module mainly used in the current intelligent mobile terminal equipment, and mainly comprises a lens, an infrared filter, an image sensor and a flexible board.

In the prior art, as the number of pixels of the CMOS image sensor is higher and the functions of the CMOS image sensor are more and more abundant, the internal circuits of the CMOS image sensor are more and more complex, and the power consumption of the CMOS image sensor is more and more high. In addition, the optical anti-shake motor and the automatic focusing motor are popularized and applied. For the camera module, not only the power consumption increment brought by the CMOS image sensor is needed to be borne, but also the power consumption increment of the motor part is not small.

However, under the influence of these power consumption increments, the problem of temperature rise of the camera module becomes more serious. Temperature rise can influence the stability of camera module. When the temperature rises to a certain extent, the material inside the lens expands, resulting in a change in the shape and position of the lens, which change is called a "temperature drift" phenomenon. Due to the temperature drift phenomenon, the focusing capability and the white balance capability of the camera are affected, so that the shot image is blurred, color distortion and the like. The above problems are particularly apparent in a high temperature environment, and a great deal of photographing opportunities are almost wasted for users, and satisfaction of the users with the equipment is reduced. Secondly, the temperature rise can also influence the imaging effect of the lens of the camera module. When the temperature rises, the temperature drift phenomenon can cause the spatial position between the pixels of the camera to change, thereby affecting the image quality and definition of the camera.

Disclosure of Invention

The embodiment of the application aims to provide a lens, a camera module and electronic equipment, which can solve the problems of poor imaging effect and poor user experience of a shot image caused by temperature rise of the camera module in the prior art.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, an embodiment of the present application provides a lens, including: a lens barrel enclosed to form a containing space; the lens group is arranged in the accommodating space along the light ray injection direction and is connected with the lens cone; the heat dissipation device is abutted to the lens group and used for conducting heat from the lens group to one surface, far away from the lens group, of the heat dissipation device.

In the embodiment of the application, the lens barrel is used for providing an accommodating space for the lens group, and the lens group is used for realizing the focal length change of the lens. The lens group is arranged in the accommodating space formed by enclosing the lenses, and the edge of the lens group is connected with the lens barrel. In practical applications, when the temperature of the lens increases, the material inside the lens expands with the increase in temperature, thereby affecting the shape and position of the lens group and affecting the imaging effect of the lens. And the radiating device is abutted to the lens assembly, and heat conduction can occur between the radiating device and the lens group, and it can be understood that when the temperature of the lens group is conducted to one surface of the radiating device abutted to the lens group, the radiating device can directly keep away from one surface of the lens group by the temperature conduction, so that the cooling of the lens group is realized, and the due imaging effect of the lens can be kept. In the embodiment of the application, the heat dissipation device abutted with the lens assembly can effectively solve the problem of poor imaging effect caused by the temperature rise of the lens group, and has the beneficial effects of improving the imaging effect and the user satisfaction under the condition of the temperature rise.

It should be noted that the lens group may include one lens or a plurality of lenses, and the zooming of the lens is achieved by moving one or more lenses in the lens group along the light incident direction.

In a second aspect, an embodiment of the present application provides a camera module, including: a lens as described above; a circuit board; the circuit board is electrically connected with the lens.

In the embodiment of the application, the electrodes in the lens are connected with the power supply circuit on the circuit board through wires so as to realize electric connection. The heat conduction component in the lens is driven by the electrode to generate the Peltier effect, so that heat is transferred, and temperature drift compensation is realized.

In a third aspect, an embodiment of the present application provides an electronic device, including a camera module as described above. In the embodiment of the application, the electronic equipment with the camera module solves the adverse effect of high temperature on shooting and improves the user experience.

Drawings

Fig. 1 is a schematic structural diagram of a camera module according to an embodiment of the application;

FIG. 2 is a schematic diagram of a heat dissipating device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of another camera module according to an embodiment of the application.

Reference numerals illustrate:

10. a lens barrel; 11. a through groove; 20. a lens group; 30. a heat sink; 31a, a first electrode; 31b, a second electrode; 32. a heat conducting component; 321. a P-type semiconductor; 322. an N-type semiconductor; 40. a circuit board; 41. a sensor; 42. a bracket; 43. an optical filter.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The lens, the camera module and the electronic device provided by the embodiment of the application are described in detail below by means of specific embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 1 to 3, an embodiment of the present application provides a lens including: the lens barrel 10, the lens barrel 10 encloses and forms the accommodation space; the lens group 20 is arranged in the accommodating space along the light ray injection direction, and is connected with the lens cone 10; the heat dissipation device 30, the heat dissipation device 30 is abutted to the lens group 20, and the heat dissipation device 30 is used for conducting heat from the lens group 20 to a surface of the heat dissipation device 30 away from the lens group 20.

In the embodiment of the present application, the lens barrel 10 is configured to provide a receiving space for the lens group 20, and the lens group 20 is configured to implement a focal length change of the lens. The lens group 20 is disposed in a receiving space formed by enclosing the lens, and an edge of the lens group 20 is connected with the lens barrel 10. In practical applications, when the temperature of the lens increases, the material inside the lens expands with the increase in temperature, thereby affecting the shape and position of the lens group 20 and affecting the imaging effect of the lens. And the heat dissipation device 30 is abutted to the lens assembly, and heat conduction can occur between the heat dissipation device 30 and the lens group 20, it can be understood that when the temperature of the lens group 20 is conducted to the surface of the heat dissipation device 30 abutted to the lens group 20, the heat dissipation device 30 can directly conduct the temperature away from the surface of the lens group 20, so that the temperature of the lens group 20 is reduced, and the due imaging effect of the lens can be maintained. In the embodiment of the application, the heat dissipation device 30 abutted to the lens assembly is arranged, so that the problem of poor imaging effect caused by the temperature rise of the lens group 20 can be effectively solved, and the beneficial effects of improving the imaging effect and the user satisfaction degree under the condition of the temperature rise are achieved.

It should be noted that the lens group 20 may include one lens or a plurality of lenses, and the zooming of the lens is achieved by moving one or more lenses in the lens group 20 along the light incident direction.

Optionally, in the embodiment of the present application, the front projection of the heat dissipating device 30 along the light incident direction overlaps with the front projection of at least part of the lens group 20 along the light incident direction, and the heat dissipating device 30 is transparent.

In the embodiment of the application, since the heat dissipating device 30 abuts against the lens group 20, the heat dissipating device 30 can transmit light so as not to affect the operation of the lens group 20. In addition, the orthographic projection of the heat dissipating device 30 along the light incident direction overlaps with the orthographic projection of at least part of the lens group 20 along the light incident direction, that is, the heat dissipating device 30 abuts against at least part of the lens group 20 along the light incident direction. The heat sink 30 conducts heat through the abutment with the lens group 20. It will be appreciated that the larger the area of abutment, the better the effect of conducting heat. Specifically, the contact area between the lens group 20 and the heat dissipating device 30 is determined according to the actual situation, which is not limited in this embodiment.

Alternatively, in the embodiment of the present application, the heat dissipating device 30 includes the first electrode 31a, the second electrode 31b, and the heat conductive member 32, and the first electrode 31a, the heat conductive member 32, and the second electrode 31b are sequentially disposed and connected in the light incident direction; the first electrode 31a is abutted to the lens group 20, the second electrode 31b is disposed on one side of the heat conducting component 32 away from the lens group 20, the first electrode 31a and the second electrode 31b are electrified, and the heat conducting component 32 conducts heat from the lens group 20 to one side of the heat conducting component 32 away from the lens group 20.

In the embodiment of the present application, the first electrode 31a and the second electrode 31b are configured to be energized, the heat conducting component 32 is configured to conduct heat, and the heat conducting component 32 is sandwiched between the first electrode 31a and the second electrode 31b along the light incident direction. Specifically, the first electrode 31a is abutted to the lens group 20, the heat conducting component 32 is disposed on a side of the first electrode 31a facing away from the lens group 20 along the light incident direction, and the second electrode 31b is disposed on a side of the heat conducting component 32 facing away from the lens group 20 along the light incident direction. When the first electrode 31a and the second electrode 31b are energized, and the first electrode 31a is energized with a forward current and the second electrode 31b is energized with a reverse current, the heat conduction component 32 can transfer heat of the lens group 20, so that the temperature of the lens group 20 is reduced, and further, the imaging effect and the user satisfaction are improved.

Optionally, as shown in fig. 3, in the embodiment of the present application, the heat dissipation device 30 and the lens group 20 are sequentially disposed along the light incident direction, the lens group 20 includes a first lens close to the heat dissipation device 30 and a second lens far from the heat dissipation device 30, the first electrode 31a abuts against the first lens, and the heat conduction component 32 and the second electrode 31b are sequentially disposed along the direction far from the first lens; the first electrode 31a and the second electrode 31b are energized and heat is conducted from the first lens to the side of the thermally conductive assembly 32 facing away from the first lens.

In the embodiment of the present application, the first lens is the lens closest to the heat dissipating device 30 in the lens group 20, the second lens is the lens furthest from the discrete heat dissipating device 30 in the lens group 20, and a plurality of lenses may be disposed between the first lens and the second lens. When the first electrode 31a abuts against the first lens, the other portion of the heat dissipating device 30 is disposed on a surface of the first electrode 31a facing away from the first lens, and the second electrode 31b is disposed on a surface of the heat conducting component 32 facing away from the first electrode 31 a. The first electrode 31a and the second electrode 31b are electrified, the first electrode 31a is electrified with forward current, and the second electrode 31b is electrified with reverse current, the heat conduction component 32 can conduct heat of the lens group 20 from the first lens to the second lens, and then the heat is transferred to one surface of the second lens far away from the first lens, so that the cooling of the lens group 20 is realized, and the imaging effect and the user satisfaction degree are improved.

It should be noted that the lens group 20 may have only one lens, and it is understood that the first lens and the second lens may be a single lens, and the first electrode 31a abuts against a surface of the single lens, which is close to the heat dissipating device 30.

Optionally, as shown in fig. 1, in the embodiment of the present application, the lens group 20 and the heat dissipation device 30 are sequentially disposed along the light incident direction, the lens group 20 includes a first lens far from the heat dissipation device 30 and a second lens close to the heat dissipation device 30, the first electrode 31a is abutted to the second lens, and the heat conduction component 32 and the second electrode 31b are sequentially connected to one end of the first electrode 31a facing away from the second lens along the light incident direction; the first electrode 31a and the second electrode 31b are energized to conduct heat from the second lens to a side of the thermally conductive assembly 32 facing away from the second lens.

In the embodiment of the present application, the first lens is the lens of the farthest discrete thermal device 30 in the lens group 20, the second lens is the lens of the lens group 20 closest to the heat dissipating device 30, and a plurality of lenses may be disposed between the first lens and the second lens. Specifically, when the first electrode 31a abuts against the second lens, the heat dissipating device 30 is disposed on a surface of the first electrode 31a facing away from the second lens, and the second electrode 31b is disposed on a surface of the heat dissipating device 30 facing away from the second lens. The first electrode 31a and the second electrode 31b are electrified, the first electrode 31a is electrified with forward current, and the second electrode 31b is electrified with reverse current, so that the heat conduction component 32 can conduct heat of the lens group 20 from the second lens to the second lens, and then transfer the heat to one surface of the second lens far away from the second lens, thereby realizing cooling of the lens group 20 and having the beneficial effects of improving imaging effect and user satisfaction.

Optionally, in the embodiment of the present application, a through groove 11 is formed at a bottom of the lens barrel 10 away from the first lens, and the heat dissipating device 30 is partially disposed in the through groove 11.

In the embodiment of the present application, the through groove 11 is configured to further improve the heat dissipation effect of the lens group 20. Since the first electrode 31a and the second lens are abutted, the heat dissipating device 30 is at least partially disposed in the lens barrel 10. Since the lens barrel 10 is a closed cylindrical structure, the environment in the lens barrel 10 is not very favorable for heat dissipation. Furthermore, a through groove 11 is formed at the bottom of the lens barrel 10 far from the first lens, and the heat dissipation device 30 is at least partially arranged in the through groove 11. In practical applications, the heat dissipation device 30 is abutted to the second lens through the first electrode 31a, so as to conduct the heat of the lens group 20 to itself, and then transfer the heat to the side far from the second lens, that is, the side close to the second electrode 31 b. While the heat dissipating device 30 is partially disposed in the through groove 11, it can be appreciated that the heat of the heat dissipating device 30 can be transferred out of the lens barrel 10 along the through groove 11, and the arrangement of the through groove 11 has the beneficial effect of improving the heat dissipating capability of the lens barrel.

Alternatively, in the embodiment of the present application, the heat conductive member 32 includes a P-type semiconductor 321 and an N-type semiconductor 322 disposed and connected along the light incident direction; one of the P-type semiconductor 321 and the N-type semiconductor 322 is in contact with the first electrode 31a, and the other of the P-type semiconductor 321 and the N-type semiconductor 322 is in contact with the second electrode 31 b; energizing the first electrode 31a and the second electrode 31b can cause heat to be conducted between the P-type semiconductor 321 and the N-type semiconductor 322.

In the embodiment of the application, the P-type semiconductor 321 and the N-type semiconductor 322 are manufactured by a semiconductor process, semiconductor materials are grown by chemical vapor deposition or physical vapor deposition, and then polarity doping is performed by ion implantation, so as to manufacture an N-type semiconductor 322 material and a P-type semiconductor 321 material, and a PN junction is formed. Indium Tin Oxide (ITO), titanium oxide (TiO 2), aluminum Zinc Oxide (AZO), and the like are all suitable semiconductor materials excellent in electrical and optical characteristics for achieving heat conduction. Specifically, when the PN junction is in a positive bias state, i.e., a positive voltage is applied to the P-type semiconductor 321, a negative voltage is applied to the N-type semiconductor 322, holes on the P-type semiconductor 321 side move to the N-type semiconductor 322 side due to the action of the internal electric field, and electrons on the N-type semiconductor 322 side move to the P-type semiconductor 321 side. Therefore, in the forward bias state, heat will flow from the P-type semiconductor 321 side to the N-type semiconductor 322 side, thereby achieving heat conduction. Specifically, when the temperature of the P-type semiconductor 321 side of the PN junction is high, holes in the P-type semiconductor 321 diffuse toward the N-type semiconductor 322 side, and electrons in the N-type semiconductor 322 diffuse toward the P-type semiconductor 321 side, so that heat on the P-type semiconductor 321 side is transferred to the N-type semiconductor 322 side, and heat conduction is further realized.

The electrodes 31 are disposed on the upper and lower sides of the PN junction semiconductor, and may be prepared by magnetron sputtering, vapor deposition, or the like. The material of the electrode 31 may be selected from ITO or indium oxide, etc., to ensure that light penetration and sample imaging quality are not affected.

Optionally, in an embodiment of the present application, there is further provided a camera module, including: a lens as described above; a circuit board 40; the circuit board 40 is electrically connected to the lens.

In the embodiment of the present application, the lens may be connected to a power line on the circuit board 40 through a wire to achieve electrical connection. Specifically, the first electrode 31a and the second electrode 31b in the lens can be connected with the circuit board 40 through wires, and the first electrode 31a and the second electrode 31b are used for driving the heat conduction component 32 in the lens to generate the peltier effect, so that heat on the lens is transferred, the lens is prevented from being over-heated, temperature drift compensation is realized, and the imaging effect of the camera module and the user satisfaction degree are improved.

Optionally, in an embodiment of the present application, the method further includes: the sensor 41 is arranged on one surface of the circuit board 40 close to the lens, and the sensor 41 is connected with the circuit board 40; the bracket 42 is arranged on one surface of the circuit board 40 close to the lens, and is fixedly connected with the circuit board 40, and the bracket 42 is sleeved on the periphery of the sensor 41; the optical filter 43, the optical filter 43 is fixedly connected to the bracket 42.

In the embodiment of the application, two opposite ends of the bracket 42 are respectively connected with the lens and the circuit board 40, the sensor 41 is arranged in the bracket 42 and connected with the circuit board 40, and the optical filter 43 is arranged between the lens and the sensor 41 along the light incident direction. In the actual use process, the sensor 41 generates heat, and is transmitted to the bracket 42 through the circuit board 40, and the bracket 42 is transmitted to the camera module again, so that the temperature drift phenomenon is caused. Due to the temperature drift phenomenon, the focusing capability and the white balance capability of the camera module can be influenced, so that the shot image has the problems of unclear blurring, color distortion and the like. In the embodiment of the application, as the lens with the heat dissipation device 30 is arranged, the heat conduction of the lens is realized, so that the temperature of the lens group 20 is reduced, the temperature drift compensation is realized, and the beneficial effects of improving the image effect and enhancing the user experience are realized.

It should be noted that in the prior art, some camera modules are further provided with a motor, and the motor may be used as a driving member to drive a component in the camera module to move, for example, an optical anti-shake motor, an auto-focus motor, etc. The motor can generate small power consumption increment in practical application, and the temperature drift phenomenon of the camera module is increasingly serious under the influence of the power consumption increment. In the embodiment of the application, as the lens with the heat dissipation device 30 is arranged, the heat conduction of the lens is realized, so that the temperature of the lens group 20 is reduced, the temperature drift compensation is realized, and the beneficial effects of improving the image effect and enhancing the user experience are realized.

Optionally, in an embodiment of the present application, an electronic device is further provided, including a camera module as described above.

In the embodiment of the application, the electronic equipment with the camera module solves the adverse effect of high temperature on shooting, improves the imaging effect of the electronic equipment during shooting, and has the beneficial effect of improving shooting experience of a user using the electronic equipment.

By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), and the like, and the non-mobile electronic device may be a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.

It should be noted that, the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A lens, comprising:

a lens barrel (10), wherein the lens barrel (10) encloses a containing space;

the lens group (20) is arranged in the accommodating space along the light ray injection direction and is connected with the lens cone (10);

the heat dissipation device (30), heat dissipation device (30) butt in lens group (20), heat dissipation device (30) are used for with heat conduction from lens group (20) to the one side of heat dissipation device (30) keep away from lens group (20).

2. The lens according to claim 1, characterized in that the orthographic projection of the heat sink (30) in the light incidence direction overlaps with the orthographic projection of at least part of the lens group (20) in the light incidence direction, the heat sink (30) being light-permeable.

3. The lens according to claim 2, wherein the heat dissipating device (30) includes a first electrode (31 a), a second electrode (31 b), and a heat conducting member (32), the first electrode (31 a), the heat conducting member (32), and the second electrode (31 b) being disposed and connected in this order along the light ray incident direction;

the first electrode (31 a) is abutted with the lens group (20), and the second electrode (31 b) is arranged on one side of the heat conduction component (32) away from the lens group (20);

when the first electrode (31 a) and the second electrode (31 b) are electrified, the heat conducting component (32) conducts heat from the lens group (20) to the surface of the heat conducting component (32) away from the lens group (20).

4. A lens according to claim 3, wherein the heat dissipating device (30) and the lens group (20) are arranged in sequence along the light incidence direction, the lens group (20) comprising a first lens close to the heat dissipating device (30) and a second lens far from the heat dissipating device (30), the first electrode (31 a) being in abutment with the first lens, the heat conducting assembly (32) and the second electrode (31 b) being arranged in sequence along the direction far from the first lens;

when the first electrode (31 a) and the second electrode (31 b) are electrified, heat is conducted from the first lens to the side of the heat conducting component (32) away from the first lens.

5. A lens according to claim 3, wherein the lens group (20) and the heat dissipating device (30) are arranged in sequence along the light incidence direction, the lens group (20) comprises a first lens far from the heat dissipating device (30) and a second lens close to the heat dissipating device (30), the first electrode (31 a) is abutted against the second lens, and the heat conducting component (32) and the second electrode (31 b) are connected in sequence along the light incidence direction to one end of the first electrode (31) facing away from the second lens;

when the first electrode (31 a) and the second electrode (31 b) are electrified, heat is conducted from the second lens to the side of the heat conducting component (32) away from the second lens.

6. The lens according to claim 5, wherein the bottom of the lens barrel (10) away from the first lens is provided with a through groove (11), and the heat dissipating device (30) is partially disposed in the through groove (11).

7. The lens according to any one of claims 3 to 6, wherein the heat conduction member (32) includes a P-type semiconductor (321) and an N-type semiconductor (322) arranged and connected in the light incidence direction;

one of the P-type semiconductor (321) and the N-type semiconductor (322) is in contact with the first electrode (31 a), and the other of the P-type semiconductor (321) and the N-type semiconductor (322) is in contact with the second electrode (31 b);

when the first electrode (31 a) and the second electrode (31 b) are energized, heat is conducted between the P-type semiconductor (321) and the N-type semiconductor (322).

8. A camera module, comprising:

the lens barrel according to any one of claims 1 to 7;

a circuit board (40);

the circuit board (40) is electrically connected with the lens.

9. The camera module of claim 8, further comprising:

the sensor (41) is arranged on one surface of the circuit board (40) close to the lens, and is connected with the circuit board (40);

the bracket (42) is arranged on one surface of the circuit board (40) close to the lens, and is fixedly connected with the circuit board (40), and the bracket (42) is sleeved on the periphery of the sensor (41);

and the optical filter (43), wherein the optical filter (43) is fixedly connected to the bracket (42).

10. An electronic device comprising a camera module according to any one of claims 1 to 9.