Camera and electronic equipment

Abstract

The invention provides a camera and electronic equipment provided with the camera. The camera provided by the invention comprises a lens barrel and a lens assembly, the lens barrel comprises a supporting part, and the supporting part is located on the object side of the lens barrel; the lens assembly comprises a first lens, and the first lens is connected to the supporting part in an active alignment mode, so that the optical axis of the first lens and the axis of the lens barrel are collinear or approximately coincide. The first lens of the camera is directly arranged on the supporting part of the lens barrel, so that the size of the object side end of the camera is reduced, and miniaturization development of the camera is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of optical lenses, and in particular to a camera and an electronic device equipped with the camera. Background Art

[0002] At present, most electronic products on the market, such as mobile phones and tablet computers, are generally equipped with a front camera under the display screen. In order to prevent the display screen from blocking the incident light of the front camera, it is generally necessary to provide a through hole with a larger diameter on the display screen facing the front camera. The existing front camera includes a lens barrel and a lens group installed in the inner cavity of the lens barrel, and the lens barrel and the lens group face the through hole. However, the lens barrel and part of the lens group will be exposed from the through hole, which will affect the appearance of the product. Summary of the invention

[0003] In view of this, an embodiment of the present application provides a camera and an electronic device equipped with the camera.

[0004] The embodiment of the present application provides a camera, characterized in that the camera comprises:

[0005] A lens barrel, the lens barrel comprising a support portion, the support portion being located on an object side of the lens barrel; and

[0006] The lens assembly comprises a first lens, wherein the first lens is connected to the supporting portion by an active alignment method so that the optical axis of the first lens is colinear or nearly coincident with the axis of the lens barrel.

[0007] An embodiment of the present application also provides an electronic device, which includes a camera and a display screen, wherein the camera includes a lens barrel and a lens assembly, wherein the lens barrel includes a support portion, and the support portion is located on the object side of the lens barrel; the lens assembly includes a first lens, and the first lens is connected to the support portion by an active alignment method so that the optical axis of the first lens is colinear or nearly coincident with the axis of the lens barrel; the display screen includes a display screen body and a light-transmitting protective plate covering the display screen body, the display screen body is provided with a through hole facing the first lens of the camera, and the image side surface of the light-transmitting protective plate is provided with a light-through hole, the through hole is connected to the light-through hole, the diameter of the through hole is greater than the diameter of the light-through hole, and the diameter of the light-through hole is greater than or equal to the outer diameter of the first lens.

[0008] The first lens of the camera of the present application is directly arranged on the supporting part of the lens barrel, which reduces the size of the object side end of the camera and is conducive to the miniaturization of the camera; and because the diameter of the light-through hole of the light-transmitting protective plate is slightly larger than or equal to the outer diameter of the first lens, and the camera only exposes the first lens, the size of the exposed lens barrel of the camera is reduced, thereby improving the aesthetics of the front of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the structural features and functions of the present application, it is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] Figure 1 is a schematic structural diagram of an electronic device according to a first embodiment of the present application;

[0011] Figure 2 yes Figure 1 A cross-sectional view of the electronic device along line II-II;

[0012] Figure 3 yes Figure 2 An exploded diagram of the camera in FIG.

[0013] Figure 4 yes Figure 2 Schematic diagram of the assembly process of the camera in FIG.

[0014] Figure 5 yes Figure 4 Modulation transfer function curves of different fields of view after the cameras in the image are assembled without active alignment;

[0015] Figure 6 yes Figure 4 Modulation transfer function curves of different fields of view after the cameras are assembled by active alignment;

[0016] Figure 7 is a cross-sectional view of an electronic device according to a second embodiment of the present application;

[0017] Figure 8 It is the light path for producing petal-shaped glare generated by reflection between the camera with infrared filter and the sensor in the prior art;

[0018] Fig. 9 yes Figure 8 The camera in the video takes real-life pictures of petal glare;

[0019] Fig.10 yes Figure 7 The camera in the video takes real-life pictures of petal glare;

[0020] Fig.11 is a cross-sectional view of an electronic device according to a third embodiment of the present application;

[0021] Fig.12 is a cross-sectional view of an electronic device according to a fourth embodiment of the present application;

[0022] Figure 13-14 yes Fig.12 A schematic diagram of one of the assembly methods of the camera;

[0023] Figure 15-17 yes Fig.12 A schematic diagram of another assembly process of the camera in FIG.

[0024] Fig.18 is a cross-sectional view of an electronic device according to a fifth embodiment of the present application;

[0025] Fig.19 is a cross-sectional view of an electronic device according to a sixth embodiment of the present application;

[0026] Fig. 20 is a cross-sectional view of an electronic device according to a seventh embodiment of the present application;

[0027] Fig.21 It is a cross-sectional view of the electronic device according to the eighth embodiment of the present application.

[0028] Main markings:

[0029] 100, electronic device; 10, housing; 30, main board; 40, camera; 401, infrared filter; 402, first surface; 404, second surface; 405, imaging surface; 50, lens barrel; 52, barrel body; 521, first positioning groove; 523, second positioning groove; 524, first supporting groove; 525, third positioning groove; 526, fourth positioning groove; 527, second supporting groove; 54, supporting part; 542, light entrance hole; 55, first barrel body; 56, second barrel body; 562, second supporting part; 60, lens assembly; 62, first lens; 622, first lens body; 624, connecting ring; 625, first object side surface; 626, first image side surface ; 64, second lens; 645, second object side surface; 646, second image side surface; 65, third lens; 655, third object side surface; 656, third image side surface; 657, first support pad; 66, fourth lens; 665, fourth object side surface; 666, fourth image side surface; 671, first support ring; 672, second support pad; 673, second support ring; 674, third support pad; 675, fourth support pad; 676, fifth support pad; 68, fifth lens; 685, fifth object side surface; 686, fifth image side surface; 70, battery; 80, display screen; 82, display screen body; 822, through hole; 84, light-transmitting protective plate; 842, light-transmitting hole. Specific embodiments

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0031] It should be noted that the reference to "embodiment" or "implementation method" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment or implementation method may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] The terms "first" and "second" appearing in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" refers to two or more, unless otherwise clearly and specifically defined.

[0033] Please also read Figure 1-Figure 3The electronic device 100 of the first embodiment of the present application can be, but is not limited to, a mobile phone, a computer, a tablet computer, a vehicle-mounted device, a monitoring device, a security device, a medical device, a game console, a robot, etc. The present application takes a mobile phone as an example for specific description. The electronic device 100 includes a housing 10, a motherboard 30 disposed in the housing 10, a camera 40, a battery 70 disposed in the housing 10, and a display screen 80. The camera 40 is disposed in the housing 10, and the display screen 80 covers the front of the housing 10. The camera 40 and the display screen 80 are electrically connected to the motherboard 30, and the battery 70 provides power to the motherboard 30, the camera 40, and the display screen 80. The camera 40 includes a lens barrel 50 and a lens assembly 60. The lens barrel 50 includes a barrel body 52 and a support portion 54. The support portion 54 is located on the object side of the lens barrel 50, that is, the support portion 54 is located on the object side of the barrel body 52. ​​The lens assembly 60 includes a first lens 62, a second lens 64, a third lens 65, a fourth lens 66, and a fifth lens 68 stacked in sequence from the object side to the image side. The first lens 62 is connected to the support portion 54 by an active alignment method so that the optical axis of the first lens 62 is colinear with the axis of the lens barrel 50. The second lens 64, the third lens 65, the fourth lens 66, and the fifth lens 68 are installed in the inner cavity of the lens barrel 50, and the first lens 62, the second lens 64, the third lens 65, the fourth lens 66, and the fifth lens 68 share an optical axis L. The display screen 80 includes a display screen body 82 and a light-transmitting protective plate 84 covering the front of the display screen body 82. The display screen body 82 is provided with a through hole 822 facing the first lens 62 of the camera 40. The image side surface 840 of the light-transmitting protective plate 84 is provided with a light-transmitting hole 842. The through hole 822 is connected to the light-transmitting hole 842. The diameter of the through hole 822 is greater than the diameter of the light-transmitting hole 842. The diameter of the light-transmitting hole 842 is greater than the diameter of the first lens 62. In other embodiments, the diameter of the light-transmitting hole 842 is equal to the diameter of the first lens 62. Optionally, the axis of the light-transmitting hole 842, the optical axis of the first lens 62 and the axis of the through hole 822 are collinear. It can be understood that the image side surface 840 of the light-transmitting protective plate 84 is not light-transmitting around the light-transmitting hole 842, that is, when viewed from the front of the light-transmitting protective plate 84, only the part facing the light-transmitting hole 842 is exposed, and other parts are not exposed.

[0034] The camera 40 can be applied to electronic products that require camera devices, such as mobile phones, computers, tablet computers, vehicles, monitoring, security, medical treatment, game consoles, robots, etc. The front side refers to the side facing the same direction as the light emitting side of the display screen 80, and the back side refers to the side facing away from the light emitting side of the display screen 80.

[0035] The first lens 62 of the camera 40 of the present application is directly arranged on the supporting portion 54 of the lens barrel 50, that is, the first lens 62 covers the object side of the lens barrel 50, which reduces the size of the object side end (i.e., the head) of the camera 40, which is conducive to the miniaturization of the camera 40; in addition, since the diameter of the light-through hole 842 of the light-transmitting protective plate 84 is slightly larger than or equal to the outer diameter of the first lens 62, when the camera 40 is viewed from the front of the display screen 80, only the first lens 62 of the camera 40 is exposed, and the size of the exposed lens barrel 50 of the camera 40 is reduced, thereby improving the aesthetics of the front of the electronic device 100.

[0036] like Figure 2 and Figure 3 As shown, the first lens 62 includes a first lens body 622 and a connecting ring 624 arranged around the first lens body 622. The diameter of the first lens body 622 is smaller than the outer diameter of the connecting ring 624. The back of the first lens body 622 is coplanar with the back of the connecting ring 624. The supporting portion 54 is a supporting ring arranged at the head of the lens barrel 50. The supporting ring forms a light entrance hole 542. The connecting ring 624 is connected to the front of the supporting ring. The connecting ring 624 and the supporting ring can be fixedly connected by gluing. The outer diameter of the connecting ring 624 is smaller than or equal to the outer diameter of the supporting ring. The optical axis of the first lens 62 is colinear with the center line of the light entrance hole 542. In this embodiment, the outer diameter of the connecting ring 624 is slightly smaller than the outer diameter of the supporting ring. Preferably, the outer diameter of the connecting ring 624 is equal to the outer diameter of the supporting ring. In other embodiments, the outer diameter of the connecting ring 624 can also be slightly larger than the outer diameter of the supporting ring, and the outer diameter of the supporting ring is larger than the diameter of the first lens body 622.

[0037] Optionally, the first lens 62 can be made of glass or plastic, preferably glass; the first lens 62 has a first object side surface 625 and a first image side surface 626, the first object side surface 625 of the first lens 62 is a convex surface, the first image side surface 626 of the first lens 62 is a concave surface, and the first lens 62 has a positive refractive power. The first lens 62 can replace the cover glass on the front of the camera, reducing the internal space of the housing 10 occupied by the camera 40, thereby saving the internal space of the housing 10, which is conducive to the miniaturization of the electronic device 100 and convenient for the layout of other components in the electronic device 100. The first image side surface 626 is a concave surface, which can effectively enable the light reflected by the object to be captured by the camera 40, and can strengthen the convergence of the field of view light outside the optical axis L to enter the imaging surface of the camera 40. In some embodiments, the first object side surface 625 of the first lens 62 is a convex surface; the first image side surface 626 of the first lens 62 is a concave surface near the optical axis and a flat surface at the circumference.

[0038] Optionally, the second lens 64 can be made of glass or plastic, and has a second object side surface 645 and a second image side surface 646; the second lens 64 has negative refractive power. In this embodiment, the second object side surface 645 of the second lens 64 is concave at the near optical axis L; the second image side surface 646 of the second lens 64 is concave. The diameter of the second lens 64 is greater than the diameter of the first lens body 622, and the projection of the outer peripheral wall of the first lens body 622 along the optical axis L on the second image side surface 646 of the second lens 64 is located on the concave surface of the second image side surface 646. In some embodiments, the second object side surface 645 of the second lens 64 is concave at the near optical axis L and convex at the circumference; the second image side surface 646 of the second lens 64 is concave at the near optical axis L and convex or flat at the circumference.

[0039] Optionally, the third lens 65 can be made of glass or plastic, and includes a third object-side surface 655 and a third image-side surface 656; the third lens 65 has negative refractive power. The third object-side surface 655 of the third lens 65 is a concave surface, and the third image-side surface 656 of the third lens 65 is a convex surface; in other embodiments, the third object-side surface 655 is a concave surface near the optical axis L and a flat surface at the circumference; the third image-side surface 656 is a convex surface near the optical axis L and a flat surface at the circumference. The diameter of the third lens 65 is equal to the diameter of the second lens 64.

[0040] Optionally, the fourth lens 66 can be made of glass or plastic, and has a fourth object side surface 665 and a fourth image side surface 666; the fourth lens 66 has positive refractive power. The fourth object side surface 665 of the fourth lens 66 is a concave surface, and the fourth image side surface 666 of the fourth lens 66 is a convex surface. The diameter of the fourth lens 66 is greater than the diameter of the third lens 65. Specifically, the projection of the outer peripheral wall of the third lens 65 on the fourth object side surface 665 of the fourth lens 66 along the optical axis L is located on the concave surface of the fourth object side surface 665. Specifically, the fourth object side surface 665 is a concave surface near the optical axis L and a plane at the circumference; the fourth image side surface 666 is a convex surface near the optical axis L and a plane at the circumference.

[0041] Optionally, the fifth lens 68 can be made of glass or plastic, and has a fifth object-side surface 685 and a fifth image-side surface 686; the fifth lens 68 has negative refractive power. The fifth object-side surface 685 of the fifth lens 68 is a concave surface at the near optical axis L, and a flat surface at the circumference; the fifth image-side surface 686 of the fifth lens 68 is a concave surface at the near optical axis L, and a convex surface at the circumference of the fifth image-side surface 686. The diameter of the fifth lens 68 is greater than the diameter of the fourth lens 66, and the projection of the outer peripheral wall of the fourth lens 66 along the optical axis L on the fifth object-side surface 685 of the fifth lens 68 is located on the convex surface of the fifth object-side surface 685.

[0042] The inner cavity of the barrel 52 is provided with a circular first positioning groove 521, a second positioning groove 523, a third positioning groove 525 and a fourth positioning groove 526 in sequence from the object side to the image side. The inner diameter of the first positioning groove 521 is smaller than the inner diameter of the second positioning groove 523, the inner diameter of the second positioning groove 523 is smaller than the inner diameter of the third positioning groove 525, and the inner diameter of the third positioning groove 525 is smaller than the inner diameter of the fourth positioning groove 526. The second lens 64 can be positioned in the first positioning groove 521, the third lens 65 can be positioned in the second positioning groove 523, the fourth lens 66 can be positioned in the third positioning groove 525, and the fourth lens 66 can be positioned in the fourth positioning groove 526. Optionally, a first support pad 657 is clamped at the circumference of the second image side surface 646 of the second lens 64 and the circumference of the third object side surface 655 of the third lens 65. Optionally, the inner cavity of the barrel 52 is provided with a first support groove 524 between the second positioning groove 523 and the third positioning groove 525, and a first support ring 671 is provided between the circumference of the second image side surface 646 of the third lens 65 and the circumference of the fourth object side surface 665 of the fourth lens 66, and the first support groove 524 is used to position the first support ring 671; a second support pad 672 is clamped between the circumference of the third image side surface 656 of the third lens 65 and the front surface of the first support ring 671, and a third support pad 674 is clamped between the circumference of the fourth object side surface 665 of the fourth lens 66 and the back surface of the first support ring 671. Optionally, the inner cavity of the barrel 52 is provided with a second support groove 527 between the third positioning groove 525 and the fourth positioning groove 526, and a second support ring 673 is provided between the circumference of the fourth image side surface 666 of the fourth lens 66 and the circumference of the fifth object side surface 685 of the fifth lens 68, and the second support groove 527 is used to position the second support ring 673; a fourth support pad 675 is clamped between the circumference of the fourth image side surface 666 of the fourth lens 66 and the front side of the second support ring 673, and a fifth support pad 676 is clamped between the circumference of the fifth object side surface 685 of the fifth lens 68 and the back side of the second support ring 673.

[0043] The camera 40 also includes an infrared filter 401 and an imaging surface 408. The infrared filter 401 is located between the fifth lens 68 and the imaging surface 408. The infrared filter 401 has a first surface 402 and a second surface 404. The infrared filter 401 can be made of glass or an optical film. The infrared filter 401 is used to cut off infrared rays and achieve high transmittance of visible light, thereby blocking infrared light that interferes with the imaging quality and preventing infrared rays from passing through the lens of the camera device to cause image distortion, so that the resulting image is more in line with the perception of the human eye. A sensor is provided on the side of the imaging surface 408 facing the infrared filter 401. Optionally, the camera 40 also includes a protective glass, which covers the sensor; the protective glass is used to protect the sensor.

[0044] like Figure 2-Figure 4As shown, when assembling the camera 40, the second lens 64 is installed in the first positioning groove 521, and the second lens 64 is fixedly connected to the barrel 52, so that the second object side surface 645 faces the light entrance hole 542; the first support pad 657 is placed on the circumference of the second image side surface 646 of the second lens 64, and the third lens 65 is installed in the second positioning groove 523, and the third lens 65 is fixedly connected to the barrel 52, so that the third object side surface 655 faces the second lens 64, and the first support pad 657 is clamped The second support pad 672 is placed at the circumference of the third image side surface 656 of the third lens 65, the first support ring 671 is installed to the first support groove 524, and the first support ring 671 is connected to the cylinder 52, and the second support pad 672 is clamped between the first support ring 671 and the third lens 65; the third support pad 674 is placed around the back of the first support ring 671, the fourth lens 66 is installed to the third positioning groove 525, and the fourth The lens 66 is connected to the barrel 52, so that the fourth object side surface 665 of the fourth lens 66 faces the third lens 65, and the third support pad 674 is clamped between the fourth lens 66 and the first support ring 671; the fourth support pad 675 is placed at the circumference of the fourth image side surface 666 of the fourth lens 66, the second support ring 673 is installed in the second support groove 527, and the second support ring 673 is connected to the barrel 52, and the fourth support pad 675 is clamped between the second support ring 673 and the fourth lens 66; place the fifth support pad 676 around the back of the second support ring 673, install the fifth lens 68 to the fourth positioning groove 526, and the fifth lens 68 is connected to the barrel 52, so that the fifth object side surface 685 of the fifth lens 68 faces the fourth lens 66, and the fifth support pad 676 is clamped between the fifth lens 68 and the second support ring 673; at this time, the optical axis of the second lens 64, the optical axis of the third lens 65, the optical axis of the fourth lens 66 and the optical axis of the fifth lens 68 are collinear. Assemble the first lens 62 to the support portion 54 of the lens barrel 50 by active alignment, specifically, clamp the first lens 62 by the clamp 300, and adjust the optical axis of the first lens 62 so that the optical axis of the first lens 62 is collinear or nearly coincident with the optical axis of the second lens 64; in this embodiment, the first lens 62 is fixedly connected to the support portion 54 by glue; and then install the outer color filter 401 and the imaging surface 408 to the lens barrel 50 respectively.

[0045] At this time, the defocus curves of the modulation transfer function (MTF) of different fields of view of the camera 40 change from a discrete state to a concentrated state to improve the MTF of the best imaging surface. Figure 5 , the camera in the prior art is assembled without active alignment, and the defocus curves of the modulation transfer function of different fields of view of the camera are discrete; Figure 6As shown, the camera 40 of the present application is assembled with the first lens 62 in an active alignment manner, and the defocus curves of the modulation transfer functions of different fields of view of the camera 40 are in a concentrated state. Therefore, the camera 40 improves the MTF of the best imaging surface.

[0046] In other embodiments, the first lens 62 may also be fixedly connected to the support portion 54 of the lens barrel 50 by means of snap connection or injection molding.

[0047] like Figure 1 and Figure 2 As shown, the camera 40 is installed in the housing 10 so that the first lens 62 is accommodated in the through hole 822 of the display screen body 82, and the first object side surface 625 of the first lens 62 is opposite to the light through hole 842. At this time, the diameter of the through hole 822 is ψ, the diameter of the light through hole 842 of the light-transmitting protective plate 84 is α, and the diameter of the first lens body 622 is , the distance between the intersection of the incident light of the camera 40 and the optical axis L and the back of the light-transmitting protective plate 84 is VP, and the field of view of the camera 40 is θ. In this embodiment, the diameter ψ of the through hole 822 is greater than the diameter α of the light-transmitting hole 842, and the diameter α of the light-transmitting hole 842 is greater than the diameter of the first lens body 622. , the diameter α of the light hole 842 is equal to or slightly larger than the outer diameter of the connecting ring 624. Since the head of the camera 40 only has the first lens 62 and no lens barrel 50; the head of the camera in the prior art includes not only the first lens but also the lens barrel surrounding the first lens; therefore, the diameter of the head of the camera 40 is smaller than that of the head of the camera in the prior art, and when the camera 40 is viewed from the light exiting surface of the display screen 80, only the first lens 62 of the camera 40 is exposed from the light hole 842, making the appearance of the electronic device 100 more beautiful.

[0048] See also Figure 7 The structure of the electronic device 100a in the second embodiment of the present application is similar to that of the electronic device 100 in the first embodiment, except that the camera 40a of the electronic device 100a in the second embodiment omits the infrared filter 401 on the basis of the camera 40 in the first embodiment, and an infrared light cutoff film is provided on the object side and / or image side of at least one lens.

[0049] In this embodiment, an infrared light cut-off film 405 is provided on the image side of the first lens 62 to filter out infrared light; specifically, the infrared light cut-off film 405 is attached to the image side of the first lens 62. Cameras in the prior art generally filter out infrared light through an infrared filter, however, the infrared filter increases the overall height of the camera; compared with the prior art, the camera 40a in the second embodiment can further reduce the height of the camera 40a, and in addition, the infrared light cut-off film 405 is attached to the image side of the first lens 62, which can not only cut off the infrared light from reaching the sensor for imaging, but also reduce the overall height and manufacturing cost of the camera 40a.

[0050] like Figure 8-Figure 10 As shown, the optical path between the infrared filter 401 of the camera and the microlens on the sensor is used to produce the following Fig. 9 The camera 40a in the second embodiment omits the infrared filter 401, and attaches the infrared light cut-off film 405 to the image side of the first lens 62, which can eliminate the light path of the colored petal-shaped glare generated by the reflection between the infrared filter 401 and the sensor, so that the petal-shaped glare in the picture taken by the camera 40a is significantly reduced (such as Fig.10 As shown), the shooting quality of the camera 40a is improved.

[0051] In other embodiments, the object side or image side of the second lens 64 is provided with an infrared light cut-off film, the object side or image side of the third lens 65 is provided with an infrared light cut-off film, the object side or image side of the fourth lens 66 is provided with an infrared light cut-off film, or the object side or image side of the fifth lens 68 is provided with an infrared light cut-off film.

[0052] See also Fig.11 , the structure of the electronic device 100b in the third embodiment of the present application is similar to the structure of the electronic device 100a in the second embodiment, except that: the camera 40b in the third embodiment is based on the camera 40a in the second embodiment and adds another infrared light cut-off film. Specifically, the image side surface of the first lens 62 of the camera 40b and / or the image side surface and / or object side surface of at least one of the second lens 64, the third lens 65, the fourth lens 66 and the fifth lens 68 are provided with an infrared light cut-off film. In this embodiment, the image side surface of the first lens 62 is affixed with a first infrared light cut-off film 406, and the object side surface of the third lens 65 is affixed with a second infrared light cut-off film 407. The first infrared light cut-off film 406 and the second infrared light cut-off film 407 are provided on the camera 40b in this embodiment, which can further effectively filter out infrared light and improve the shooting quality of the camera 40b.

[0053] In other embodiments, the image side surface of the first lens 62 is provided with a first infrared light cut-off film 406, and the object side surface or image side surface of the second lens 64, the image side surface of the third lens 65, the object side surface or image side surface of the fourth lens 66, or the object side surface or image side surface of the fifth lens 68 is provided with a second infrared light cut-off film 407.

[0054] In other embodiments, one of the object side surface and the image side surface of the second lens 64 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407, one of the object side surface and the image side surface of the third lens 65 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407, one of the object side surface and the image side surface of the fourth lens 66 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407, or one of the object side surface and the image side surface of the fifth lens 68 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407.

[0055] In other embodiments, the camera 40b may also include three or more infrared light cutoff films, which are attached to three or more of the side surfaces of the image side surface of the first lens 62, the object side surface and the image side surface of the second lens 64, the object side surface and the image side surface of the third lens, the object side surface and the image side surface of the fourth lens, and the object side surface and the image side surface of the fifth lens.

[0056] Please also read Fig.12 and Fig.13 The structure of the electronic device 100c in the fourth embodiment of the present application is similar to that of the electronic device 100 in the first embodiment, except that: the light-through hole 842 on the light-transmitting protective plate 84 passes through the object side and the image side of the light-transmitting protective plate, and the first lens 62 is inserted into the light-through hole 842. Specifically, the light-through hole 842 passes through the back side (i.e., the image side) and the front side (i.e., the object side) of the light-transmitting protective plate 84 in a direction parallel to the optical axis L of the camera 40, and the first lens body 622 of the first lens 62 is inserted into the light-through hole 842.

[0057] Optionally, the diameter of the first lens body 622 is The diameter α of the light-through hole 842 is equal to the diameter α of the light-through hole 842. The first lens body 622 is inserted in the light-through hole 842, and only the first lens body 622 is exposed, so that the exposed area of ​​the camera 40 is further reduced, and the appearance of the front of the electronic device 100c is further improved; in addition, since the first lens body 622 is inserted in the light-through hole 842, the internal space occupied by the camera 40 can be reduced, which is beneficial to the layout of other components, or the overall thickness of the electronic device 100c can be reduced, which is beneficial to the ultra-thin development of the product.

[0058] Optionally, the first object-side surface 625 of the first lens 62 protrudes from the object-side surface (i.e., the front surface) of the light-transmitting protective plate 84. In other embodiments, the first object-side surface 625 of the first lens 62 may be coplanar with the object-side surface of the light-transmitting protective plate 84, or the first object-side surface 625 of the first lens 62 may also be located in the light-transmitting hole 842.

[0059] Optionally, the connection ring 624 of the first lens 62 and the image side surface (i.e., the back surface) of the light-transmitting protective plate 84 and / or the outer peripheral surface of the first lens body 622 and the inner peripheral surface of the light-transmitting hole 842 are connected by a colloid. Specifically, the outer diameter of the connection ring 624 is greater than the diameter of the connection ring 624. When the first lens body 622 is inserted into the light-transmitting hole 842, the front surface of the connection ring 624 is fixedly connected to the image side surface 840 of the light-transmitting protective plate 84 around the light-transmitting hole 842 by the colloid, and the colloid is arranged between the outer peripheral surface of the first lens body 622 and the inner peripheral surface of the light-transmitting hole 842. In other embodiments, the colloid may be arranged only between the outer peripheral surface of the first lens body 622 and the inner peripheral surface of the light-transmitting hole 842, or the colloid may be arranged only between the front surface of the connection ring 624 and the image side surface 840 of the light-transmitting protective plate 84.

[0060] like Fig.14 and Fig.15 As shown, one of the installation methods of the electronic device 100c of the fourth embodiment of the present application is as follows:

[0061] The first lens 62 is connected to the object side of the lens barrel 50 by active alignment, so that the optical axis of the first lens 62 is collinear with the optical axis L of the lens barrel 50; specifically, the first lens 62 is clamped by the clamp 300, and the optical axis of the first lens 62 is adjusted so that the optical axis of the first lens 62 is collinear with or nearly coincident with the optical axis of the lens barrel 50, and the first lens 62 is fixedly connected to the support portion 54 by glue.

[0062] Insert the first lens body 622 of the camera 40 into the light-through hole 842 of the light-transmitting protective plate 84; specifically, apply glue on the front surface of the connecting ring 624 and the outer peripheral surface of the first lens body 622, and insert the first lens body 622 of the camera 40 into the light-through hole 842 from the back surface of the display screen 80, so that the front surface of the connecting ring 624 is glued to the image side surface 840 of the light-transmitting protective plate 84, and the outer peripheral surface of the first lens body 622 is glued to the inner peripheral surface of the light-through hole 842.

[0063] like Fig.16 and Fig.17 As shown, another installation method of the electronic device 100c of the fourth embodiment of the present application is as follows:

[0064] Insert the first lens 62 into the light-through hole 842 of the light-transmitting protective plate 84; specifically, apply glue on the front surface of the connecting ring 624 and the outer peripheral surface of the first lens body 622, and insert the first lens body 622 into the light-through hole 842 from the back surface of the display screen 80, so that the front surface of the connecting ring 624 is glued to the image side surface 840 of the light-transmitting protective plate 84, and the outer peripheral surface of the first lens body 622 is glued to the inner peripheral surface of the light-through hole 842.

[0065] The lens barrel 50 is connected to the first image-side surface 626 of the first lens 62 by active alignment; specifically, the outer wall of the lens barrel 50 is clamped by the clamp 300, and the optical axis L of the lens barrel 50 is adjusted so that the optical axis L of the lens barrel 50 is colinear or nearly coincident with the light of the first lens 62, and the connecting ring 624 of the first lens 62 is fixedly connected to the support portion 54 by glue.

[0066] See also Fig.18 The structure of the electronic device 100d in the fifth embodiment of the present application is similar to that of the electronic device 100c in the fourth embodiment, except that the camera 40d of the electronic device 100d in the fifth embodiment omits the infrared filter 401 on the basis of the camera 40 in the fourth embodiment, and an infrared light cutoff film is provided on the object side or image side of at least one lens.

[0067] In this embodiment, an infrared light cut-off film 405 is provided on the first image side of the first lens 62 to filter out infrared light; specifically, the infrared light cut-off film 405 is attached to the first image side of the first lens 62. The camera in the prior art generally filters out infrared light through an infrared filter, however, the infrared filter increases the overall height of the camera; compared with the prior art, the camera 40d in the fifth embodiment can further reduce the height of the camera 40d. In addition, an infrared light cut-off film 405 is attached to the first image side of the first lens 62, which can not only cut off the infrared light from reaching the sensor for imaging, but also reduce the overall height and manufacturing cost of the camera 40a, thereby reducing the overall thickness of the electronic device 100d, which is conducive to the miniaturization of electronic devices.

[0068] In other embodiments, the second object side or the second image side of the second lens 64 is provided with an infrared light cut-off film, the third object side or the third image side of the third lens 65 is provided with an infrared light cut-off film, the fourth object side or the fourth image side of the fourth lens 66 is provided with an infrared light cut-off film, or the fifth object side or the fifth image side of the fifth lens 68 is provided with an infrared light cut-off film.

[0069] See also Fig.19The structure of the electronic device 100e in the sixth embodiment of the present application is similar to the structure of the electronic device 100d in the fifth embodiment, except that: the camera 40e in the sixth embodiment is based on the camera 40 in the fifth embodiment and adds another infrared light cut-off film. Specifically, the image side surface of the first lens 62 of the camera 40e and / or the image side surface and / or object side surface of at least one of the second lens 64, the third lens 65, the fourth lens 66 and the fifth lens 68 are provided with an infrared light cut-off film. In this embodiment, the first image side surface of the first lens 62 is affixed with a first infrared light cut-off film 406, and the second image side surface of the second lens 64 is affixed with a second infrared light cut-off film 407. The first infrared light cut-off film 406 and the second infrared light cut-off film 407 are provided on the camera 40e in this embodiment, which can further effectively filter out infrared light and improve the shooting quality of the camera 40e.

[0070] In other embodiments, the first image side surface of the first lens 62 is provided with a first infrared light cutoff film 406, and the second object side surface of the second lens 64, the third object side surface or the third image side surface of the third lens 65, the fourth object side surface or the fourth image side surface of the fourth lens 66, or the fifth object side surface or the fifth image side surface of the fifth lens 68 is provided with a second infrared light cutoff film 407.

[0071] In other embodiments, one of the second object side surface and the second image side surface of the second lens 64 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407, one of the third object side surface and the third image side surface of the third lens 65 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407, one of the fourth object side surface and the fourth image side surface of the fourth lens 66 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407, or one of the fifth object side surface and the fifth image side surface of the fifth lens 68 is provided with the first infrared light cut-off film 406, and the other is provided with the second infrared light cut-off film 407.

[0072] In other embodiments, the camera 40b may also include three or more infrared light cutoff films, which are attached to three or more of the first image side surface of the first lens 62, the second object side surface and the second image side surface of the second lens 64, the third object side surface and the third image side surface of the third lens 65, the fourth object side surface and the fourth image side surface of the fourth lens 66, and the fifth object side surface and the fifth image side surface of the fifth lens 68.

[0073] See also Fig. 20The structure of the electronic device 100f in the seventh embodiment of the present application is similar to that of the electronic device 100c in the fourth embodiment, except that: the lens barrel 50a of the electronic device 100f in the seventh embodiment is a split structure, specifically, the lens barrel 50a includes a first barrel 55 and a second barrel 56, the first barrel 55 is connected to one end of the second barrel 56 by active alignment, and the first barrel 55 and the second barrel 56 are fixedly connected by colloid. The first barrel 55 and the second barrel 56 are coaxial, and the support portion 54 is located at one end of the first barrel 55 away from the second barrel 56.

[0074] In this embodiment, the second lens 64 and the third lens 65 are respectively positioned in the inner cavity of the first cylinder 55. Specifically, the object side end of the first cylinder 55 is provided with a first support portion 552, and the connecting ring 624 is fixedly connected to the first support portion 552 by gluing; the inner circumference of the first cylinder 55 is provided with a first positioning groove 521 and a second positioning groove 523, and the first positioning groove 521 is closer to the first support portion 552 than the second positioning groove 523. The second lens 64 and the third lens 65 are respectively accommodated in the first positioning groove 521 and the second positioning groove 523, and the second lens 64 and the third lens 65 are respectively fixedly connected to the first cylinder 55 by colloid. A second supporting portion 562 is provided at the object side end of the second barrel 56, and the image side surface of the first barrel 55 is fixedly connected to the second supporting portion 562 of the second barrel 56 by colloid; the fourth lens 66 and the fifth lens 68 are respectively positioned in the inner cavity of the second barrel 56. Specifically, a third positioning groove 525, a supporting groove 528 and a fourth positioning groove 526 are provided on the inner circumference of the second barrel 56. The third positioning groove 525 is closer to the second supporting portion 562 than the fourth positioning groove 526. The supporting groove 528 is located between the third positioning groove 525 and the fourth positioning groove 526. The fourth lens 66 and the fifth lens 68 are respectively accommodated in the third positioning groove 525 and the fourth positioning groove 526. The supporting ring 677 is accommodated in the supporting groove 528, and the supporting ring 677 is clamped between the fourth lens 66 and the fifth lens 68. The fourth lens 66, the supporting ring 677 and the fifth lens 68 are respectively fixedly connected to the second barrel 56. At this time, the second lens 64 , the third lens 65 , the fourth lens 66 and the fifth lens 68 share a common optical axis.

[0075] The lens barrel 50a in this embodiment is configured as a first barrel body 55 and a second barrel body 56 that can be connected to each other, which can further reduce the overall volume of the lens barrel, reduce the internal space of the shell occupied by the camera 40f, facilitate the layout of other components, reduce the overall thickness of the electronic device 100f, and facilitate the development of ultra-thin products.

[0076] In other embodiments, the lens barrel may further include three or more barrel bodies, the second lens, the third lens, the fourth lens and the fourth lens are respectively arranged in the inner cavities of three or more barrel bodies, and the three or more barrel bodies are respectively connected together by active alignment.

[0077] See also Fig.21 The structure of the electronic device 100k of the eighth embodiment of the present application is similar to the structure of the electronic device 100f of the seventh embodiment, except that the camera 40k of the electronic device 100k of the eighth embodiment omits the infrared filter 401 on the basis of the camera 40f of the seventh embodiment, and an infrared light cutoff film is provided on the object side and / or image side of at least one lens.

[0078] In this embodiment, an infrared light cut-off film is provided on the image side of the first lens 62 to filter out infrared light; specifically, the infrared light cut-off film 405 is attached to the first image side of the first lens 62. Cameras in the prior art generally filter out infrared light through an infrared filter, however, the infrared filter increases the overall height of the camera; compared with the prior art, the camera 40k in the eighth embodiment can further reduce the height of the camera 40k. In addition, an infrared light cut-off film 405 is attached to the first image side of the first lens 62, which can not only cut off infrared light from reaching the sensor for imaging, but also reduce the overall height and manufacturing cost of the camera 40k, thereby reducing the overall thickness of the electronic device 100k, which is conducive to the miniaturization of electronic devices.

[0079] In other embodiments, the second object side or the second image side of the second lens 64 is provided with an infrared light cut-off film, the third object side or the third image side of the third lens 65 is provided with an infrared light cut-off film, the fourth object side or the fourth image side of the fourth lens 66 is provided with an infrared light cut-off film, or the fifth object side or the fifth image side of the fifth lens 68 is provided with an infrared light cut-off film.

[0080] In other embodiments, an infrared light cut-off film is provided on the image side surface of the first lens 62 of the camera 40k and / or the image side surface and / or object side surface of at least one of the second lens 64, the third lens 65, the fourth lens 66, and the fifth lens 68. For example, a first infrared light cut-off film is attached to the first image side surface of the first lens 62, and a second infrared light cut-off film is attached to the second object side surface of the second lens 64, which can further effectively filter out infrared light and improve the shooting quality of the camera 40k.

[0081] In other embodiments, the first image side surface of the first lens 62 is provided with a first infrared light cutoff film, the second image side surface of the second lens 64, the third object side surface or the third image side surface of the third lens 65, the fourth object side surface or the fourth image side surface of the fourth lens 66, or the fifth object side surface or the fifth image side surface of the fifth lens 68 is provided with a second infrared light cutoff film.

[0082] In other embodiments, one of the second object side surface and the second image side surface of the second lens 64 is provided with a first infrared light cut-off film, and the other is provided with a second infrared light cut-off film, one of the third object side surface and the third image side surface of the third lens 65 is provided with a first infrared light cut-off film, and the other is provided with a second infrared light cut-off film, one of the fourth object side surface and the fourth image side surface of the fourth lens 66 is provided with a first infrared light cut-off film, and the other is provided with a second infrared light cut-off film, or one of the fifth object side surface and the fifth image side surface of the fifth lens 68 is provided with a first infrared light cut-off film, and the other is provided with a second infrared light cut-off film.

[0083] In other embodiments, the camera 40k may also include three or more infrared light cutoff films, which are attached to three or more of the first image side surface of the first lens 62, the second object side surface and the second image side surface of the second lens 64, the third object side surface and the third image side surface of the third lens 65, the fourth object side surface and the fourth image side surface of the fourth lens 66, and the fifth object side surface and the fifth image side surface of the fifth lens 68.

[0084] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A camera, characterized in that: The camera comprises: A lens barrel, the lens barrel comprising a support portion, the support portion being located on an object side of the lens barrel; and The lens assembly comprises a first lens, wherein the first lens is connected to the supporting portion by an active alignment method so that the optical axis of the first lens is colinear or nearly coincident with the axis of the lens barrel.

2. The camera according to claim 1, characterized in that: The first lens includes a first lens body and a connecting ring surrounding the first lens body, the supporting portion is a supporting ring, the connecting ring is connected to the supporting ring, and the outer diameter of the connecting ring is less than or equal to the outer diameter of the supporting ring.

3. The camera according to claim 1, characterized in that: An infrared light cutoff film is provided on the image side surface of the first lens.

4. The camera according to claim 1, characterized in that: The lens assembly also includes a second lens, a third lens, a fourth lens and a fifth lens stacked in sequence from the object side to the image side, and an infrared light cutting film is provided on the image side surface and / or the object side surface of at least one of the second lens, the third lens, the fourth lens and the fifth lens.

5. The camera according to claim 1, characterized in that: The lens barrel comprises a first barrel and a second barrel, the first barrel is connected to one end of the second barrel by active alignment, the first barrel and the second barrel are coaxial, and the support portion is located at one end of the first barrel away from the second barrel.

6. The camera according to claim 5, characterized in that: An infrared light cutoff film is provided on the image side surface of the first lens.

7. The camera according to claim 5, characterized in that: The lens assembly also includes a second lens, a third lens, a fourth lens and a fifth lens stacked in sequence from the object side to the image side, the second lens and the third lens are respectively positioned in the inner cavity of the first cylinder, and the fourth lens and the fourth lens are respectively positioned in the inner cavity of the second cylinder; an infrared light cutoff film is provided on the image side surface and / or object side surface of at least one of the second lens, the third lens, the fourth lens and the fifth lens.

8. An electronic device, characterized in that: The electronic device includes a camera and a display screen as described in any one of claims 1 to 7, the display screen includes a display screen body and a light-transmitting protective plate covering the display screen body, the display screen body is provided with a through hole facing the first lens of the camera, the image side of the light-transmitting protective plate is provided with a light-through hole, the through hole is connected to the light-through hole, the diameter of the through hole is larger than the diameter of the light-through hole, and the diameter of the light-through hole is larger than or equal to the outer diameter of the first lens.

9. The electronic device according to claim 8, characterized in that: The light-through hole passes through the object side surface and the image side surface of the light-transmitting protective plate, and the first lens body of the first lens is inserted into the light-through hole.

10. The electronic device according to claim 9, characterized in that: The first lens body includes a first object side surface, the first object side surface protrudes from the object side surface of the light-transmitting protective plate, or the first object side surface is coplanar with the object side surface of the light-transmitting protective plate, or the first object side surface is located in the light-transmitting hole.

11. The electronic device according to claim 9, characterized in that: The connection ring of the first lens and the image side surface of the light-transmitting protective plate and / or the outer peripheral surface of the first lens body and the inner peripheral surface of the light-through hole are connected by colloid.

12. The electronic device according to claim 9, characterized in that: The first lens is connected to the object side of the lens barrel by active alignment, the optical axis of the first lens is colinear with the axis of the lens barrel, and the first lens body of the camera is inserted into the light hole.

13. The electronic device according to claim 9, characterized in that: The first lens body of the camera is inserted into the light-through hole, the lens barrel is connected to the image side surface of the first lens by active alignment, and the optical axis of the first lens is colinear with the axis of the lens barrel.

14. The electronic device according to claim 9, characterized in that: An infrared light cutoff film is attached to the image side of the first lens.

15. The electronic device according to claim 9, characterized in that: An infrared light cutoff film is provided on the image side surface and / or the object side surface of at least one of the second lens, the third lens, the fourth lens and the fifth lens of the camera.

Images