Lens devices and electronic equipment

Abstract

The present invention provides a lens device and an electronic device. [Solution] The lens device comprises a first lens group, a second lens group, and a prism, wherein the optical axis of the first lens group and the optical axis of the second lens group are arranged so as to form an included angle, the optical path of the first lens group is arranged closer to the object side than the optical path of the second lens group, and the prism is arranged between the first lens group and the second lens group to divide the lens device into the first lens group and the second lens group, and since the radial dimension of the first lens group closer to the object side is smaller than the radial dimension of the second lens group, it is possible to reduce the installation size suitable for the display screen, and furthermore, since the edge of at least one lens of the first lens group and the second lens group is provided with a cut edge, it is possible to reduce the radial dimension of the lenses in the lens groups and further reduce the radial dimensions of the first lens group and the second lens group, and it is possible to reduce the installation size suitable for the display screen.

Description

[Technical Field]

[0001] The present invention relates to the technical field of imaging lenses, and in particular to a lens device and an electronic apparatus. [Background Art]

[0002] With the continuous development of science and technology, electronic apparatuses are developing towards intelligence. In addition to digital cameras, portable electronic apparatuses such as tablet computers and mobile phones are also equipped with lens modules with a photographing function to meet users' needs for photographing at any time. However, since the radial dimension of the front lens of a mobile phone is generally large, the front lens of the mobile phone cannot be hidden in the black border of the screen, and a true full screen cannot be realized, which seriously affects the user experience.

[0003] Therefore, in order to solve the above technical problem, it is necessary to provide a novel lens device and an electronic apparatus. [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] An object of the present invention is to provide a lens device and an electronic apparatus to solve the technical problem that a true full screen cannot be realized because the front lens of a mobile phone cannot be hidden in the black border of the screen, since the radial dimension of the front lens of current mobile phones is generally large. [Means for Solving the Problem]

[0005] The technical solution of the present invention is as follows. In a first embodiment, the present invention provides a lens device comprising a first lens group, a second lens group, and a prism, wherein the optical axes of the first lens group and the second lens group are set at an angle to each other, the optical path of the first lens group is set closer to the object than the optical path of the second lens group, and the prism is set between the first lens group and the second lens group and is used to bend the optical path. A cut edge is provided on the edge of at least one lens from the first lens group and the second lens group.

[0006] In one embodiment, the optical axis of the first lens group and the optical axis of the second lens group are set perpendicular to each other.

[0007] In one embodiment, the first lens group includes a first lens barrel and a plurality of first lenses provided inside the first lens barrel, the second lens group includes a second lens barrel and a plurality of second lenses provided inside the second lens barrel, the prism is provided inside the second lens barrel, and the first lens barrel is attached to the second lens barrel by adhesive so that the optical axes of the first lens group and the optical axes of the second lens group are set to form a predetermined angle.

[0008] In one embodiment, at least one of the first lenses is provided with a first cut edge and a second cut edge that are opposite to each other, and at least one of the second lenses is provided with a third cut edge and a fourth cut edge that are opposite to each other.

[0009] In one embodiment, a first stepped hole is provided in the first lens barrel, and each of the first lenses is housed in the respective stepped hole walls of the first stepped hole; a second stepped hole is provided in the second lens barrel, and each of the second lenses is housed in the respective stepped hole walls of the second stepped hole; and a housing groove communicating with the second stepped hole is further provided in the second lens barrel, and the prism is housed in the housing groove.

[0010] In one embodiment, the second lens barrel is provided with a notch, and the first lens barrel is housed in the notch.

[0011] In one embodiment, three first lenses are provided, and two second lenses are provided.

[0012] In one embodiment, the prism is a planar prism or an aspherical prism.

[0013] In a second embodiment, the present invention further provides an electronic device comprising a housing, a display screen, and a lens device according to any of the above embodiments, wherein the optical axis of the first lens group is perpendicular to the display screen and is located close to the inner wall of the display screen and the inner wall of the housing.

[0014] In one embodiment, the electronic device is a mobile phone. [Effects of the Invention]

[0015] The beneficial effects of the lens device and electronic equipment according to the present invention are as follows: By placing a prism between the first and second lens groups, the height of the lens device can be reduced by bending the optical path using the prism, which is advantageous for making electronic devices thinner. Dividing the lens device into a first and second lens group, the radial dimension of the first lens group, which is closer to the object, is smaller than the radial dimension of the second lens group, thus reducing the mounting dimensions that can be fitted to the display screen. This allows the lens device to be better hidden within the black border of the display screen, increasing the dimensions of the display area on the display screen, which is advantageous for all-screen designs of the display screen, and resulting in a better user experience.

[0016] Furthermore, since a cut edge is provided on the edge of at least one lens among the first lens group and the second lens group, the radial dimension of the lenses in the lens group can be reduced, the radial dimensions of the first lens group and the second lens group can be further reduced, and the mounting dimension adapted to a display screen can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] [Figure 1] It is a schematic diagram showing an imaging device in the prior art mounted to an electronic device. [Figure 2] It is a schematic diagram showing an imaging device according to an embodiment of the present invention mounted to an electronic device. [Figure 3] It is a schematic diagram showing an imaging device according to another embodiment of the present invention mounted to an electronic device. [Figure 4] It is a schematic diagram of an imaging device according to an embodiment of the present invention. [Figure 5] It is an exploded perspective view of the imaging device in Fig. 4. [Figure 6] It is an exploded perspective view of the first lens group in the imaging device shown in Fig. 5. [Figure 7] It is an exploded perspective view of the second lens group and the prism in the imaging device shown in Fig. 5. [Figure 8] It is a schematic diagram of an imaging device according to another embodiment of the present invention. [Figure 9] It is an exploded perspective view of the imaging device in Fig. 8. [Figure 10] It is an exploded perspective view of the first lens group in the imaging device shown in Fig. 9. [Figure 11] It is an exploded perspective view of the second lens group and the prism in the imaging device shown in Fig. 9. [Figure 12] It is a schematic diagram of an electronic device according to an embodiment of the present invention. DESCRIPTION OF EMBODIMENTS

[0018] Hereinafter, the present invention will be further described with reference to the drawings and embodiments.

[0019] As is clear, the embodiments described represent only a portion, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort based on the embodiments of the present invention are all within the scope of protection of the present invention.

[0020] In the following drawings, similar symbols and letters indicate similar elements; therefore, once an element is defined in one drawing, it does not need to be defined or explained further in subsequent drawings.

[0021] In the description of this invention, the directions or positional relationships indicated by technical terms such as "up," "down," "inside," and "outside" are merely for the convenience and simplification of the description, and are based on the directions or positional relationships shown in the drawings or the directions or positional relationships in which the product of the invention is normally arranged when in use. They do not indicate or imply that the specified device or element has a specific direction or must be configured and operated in a specific direction, and should not be understood as limiting the invention.

[0022] Furthermore, the terms "first" and "second" are used merely to distinguish between explanations and should not be understood as indicating or implying relative importance.

[0023] Furthermore, the features of the embodiments of the present invention can be combined with each other, as long as they do not contradict each other.

[0024] Embodiments of the present invention provide an electronic device, which is a portable terminal such as a mobile phone or tablet computer. As shown in Figures 2 to 12, the electronic device comprises a housing 30, a display screen 20, and a lens device 10. The display screen 20 comprises a display area 22 and a black border 21 provided outside the display area 22, the black border 21 being a non-display area, and a lens opening 23 facing the lens device 10 is provided in the display screen 20. The lens opening 23 is located on one side of the display screen 20, and at least a portion of the lens opening 23 is located within the black border 21, thereby reducing the size of the lens opening 23 within the display area 22, and consequently allowing the lens opening 23 to be completely located within the black border 21, thereby achieving an all-screen display for the electronic device.

[0025] The lens device 10 comprises a first lens group 100, a second lens group 200, and a prism 300. The optical axes of the first lens group 100 and the second lens group 200 are set at an angle to each other, the optical path of the first lens group 100 is set closer to the object than the optical path of the second lens group 200, and the prism 300 is set between the first lens group 100 and the second lens group 200 and is used to bend the optical path.

[0026] As can be understood, in the prior art, mounting an imaging device to electronic equipment is not easy because the dimension D / 2 in Figure 1 is large, as shown in Figure 1, making it difficult to conceal the imaging device within the black border 21 of the display screen 20.

[0027] In this embodiment, by providing the prism 300 between the first lens group 100 and the second lens group 200, the height dimension of the lens device 10 can be reduced by bending the optical path using the prism 300, which is advantageous for making electronic devices thinner. Since the lens device 10 is divided into the first lens group 100 and the second lens group 200, and the radial dimension of the first lens group 100, which is closer to the object, is smaller than the radial dimension of the second lens group 200, the dimension of Y / 2 in the figures is significantly reduced, as shown in Figures 2 and 3. This allows for a smaller mounting dimension to fit the display screen 20, which in turn allows the lens device 10 to be better hidden within the black border 21 of the display screen 20, increasing the dimensions of the display area 22 on the display screen 20, which is advantageous for an all-screen design of the display screen 20, and resulting in a better user experience.

[0028] Furthermore, in this embodiment, by providing a cut edge on the edge of at least one lens in the first lens group 100 and the second lens group 200, the radial dimension of the lenses in the lens group can be reduced, and the radial dimensions of the first lens group 100 and the second lens group 200 can be further reduced. As shown in Figures 2 and 3, the dimension H in the figures is significantly reduced, which further reduces the mounting dimensions that can fit the display screen 20, ensuring that the lens device 10 can be closer to and even hidden from the black border 21 portion of the display screen 20.

[0029] In one embodiment, as shown in Figures 2 and 3, the optical axis of the first lens group 100 is perpendicular to the display screen 20 and is positioned close to the inner wall of the display screen 20 and the inner wall of the housing 30. This reduces the mounting dimensions between the first lens group 100 and the display screen 20 and housing 30, thereby allowing the lens device 10 to be better concealed within the black border 21 of the display screen 20.

[0030] Furthermore, in this embodiment, the optical axis of the first lens group 100 and the optical axis of the second lens group 200 are set perpendicular to each other, which facilitates the installation of the lens device 10 into the housing 30 and the display screen 20, and is advantageous for the miniaturization of electronic devices. Specifically, the electronic device may be a mobile phone, thereby facilitating all-screen and miniaturization designs for mobile phones.

[0031] Naturally, in some embodiments, the optical axis of the first lens group 100 may be set to form an acute or obtuse angle with the display screen 20, and the optical axis of the first lens group 100 may be set to form an acute or obtuse angle with the optical axis of the second lens group 200.

[0032] In one embodiment, referring to Figures 2 and 3, the first lens group 100 includes a first lens barrel 110 and a plurality of first lenses 120 provided inside the first lens barrel 110. By mounting each of the first lenses 120 inside the first lens barrel 110, the assembly of each first lens 120 becomes easier.

[0033] In this embodiment, the second lens group 200 includes a second lens barrel 210 and a plurality of second lenses 220 provided inside the second lens barrel 210. By mounting each second lens 220 inside the second lens barrel 210, the assembly of each second lens 220 is made easier.

[0034] Furthermore, the prism 300 is provided inside the second lens barrel 210, and the first lens barrel 110 is attached to the second lens barrel 210 by adhesive 410 such that the optical axis of the first lens group 100 and the optical axis of the second lens group 200 form a predetermined angle.

[0035] By adjusting the bonding position between the first lens barrel 110 and the second lens barrel 210, the angle between the optical axis of the first lens group 100 and the optical axis of the second lens group 200 can be adjusted, making it easier to assemble the first lens group 100 and the second lens group 200.

[0036] In this embodiment, three first lenses 120 and two second lenses 220 are provided, thereby configuring the lens device 10 as a five-lens module. This reduces the height and radial dimensions of the lens module by fewer lenses, which is advantageous for miniaturizing and thinning electronic devices.

[0037] Naturally, in some embodiments, the first lens 120 may be provided in one, two, four, or more quantities, and the second lens 220 may be provided in one, three, or more quantities, thereby configuring the lens device 10 as a 6-lens module, a 7-lens module, etc., as needed.

[0038] In one embodiment, referring to Figure 3, the prism 300 is an aspherical prism 300, and the optical performance of the lens device 10 can be improved by adding an aspherical surface 311 to the prism 300.

[0039] Furthermore, the prism 300 includes a first optical surface 310 and a second optical surface 320 perpendicular to each other, and a third optical surface 330 provided at an acute angle to both the first optical surface 310 and the second optical surface 320, wherein an aspherical surface 311 is formed on at least one of the first optical surface 310 and the second optical surface 320.

[0040] Specifically, the first optical surface 310 is provided coaxially with the optical axis of the first lens barrel 110, the second optical surface 320 is provided coaxially with the optical axis of the second lens barrel 210, and the aspherical surface 311 is formed on the first optical surface 310.

[0041] Naturally, in other embodiments, as shown in Figure 2, the prism 300 may be a planar prism 300, that is, both the first optical surface 310 and the second optical surface 320 are flat optical surfaces, or the second optical surface 320 of the prism 300 is an aspherical surface 311, and the optical surfaces of the prism 300 can be arranged according to the design requirements of the lens module to guarantee optical performance.

[0042] In one embodiment, as shown in Figures 6, 7, 10, and 11, at least one of the first lenses 120 is provided with a first cut edge 101 and a second cut edge 102 facing each other, and at least one of the second lenses 220 is provided with a third cut edge 201 and a fourth cut edge 202 facing each other. This makes it easy to reduce the radial dimensions of the lenses in the lens group, further reducing the radial dimensions of the first lens group 100 and the second lens group 200, and thereby further reducing the mounting dimensions that can be fitted to the display screen 20.

[0043] In this embodiment, each lens in the first lens group 100 and each lens in the second lens group 200 have multiple cut edge designs to accommodate the mounting needs of the lens device 10 to electronic equipment.

[0044] In one specific embodiment, as shown in Figures 10 and 11, three first lenses 120 are arranged in the first lens group 100, which are 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123, where 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123 are each provided with a first cut edge 101 and a second cut edge 102 facing each other, and two second lenses 220 are arranged in the second lens group 200, which are 2-1 lens 221 and The 2-2 lens 222 has a third cut edge 201 on one side of the 2-1 lens 221, and the 2-2 lens 222 has the third cut edge 201 and the fourth cut edge 202 facing each other. This reduces the radial dimension of each lens, which is advantageous for making the lens device 10 thinner, and also reduces the mounting dimensions between the first lens group 100 and the display screen 20 and housing 30, allowing the lens device 10 to be better concealed within the black border 21 of the display screen 20.

[0045] In another specific embodiment, three first lenses 120 are arranged in the first lens group 100, which are 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123, where 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123 are each provided with a first cut edge 101 and a second cut edge 102 facing each other. Two second lenses 220 are arranged in the second lens group 200, which are 2-1 lens 221 and 2-2 lens 222, where 2-1 lens 221 and 2-2 lens 222 are each provided with a third cut edge 201 and a fourth cut edge 202 facing each other. This reduces the radial dimension of each lens, which is advantageous for making the lens device 10 thinner, and also reduces the mounting dimensions between the first lens group 100 and the display screen 20 and housing 30, allowing the lens device 10 to be better concealed within the black border 21 of the display screen 20.

[0046] In yet another specific embodiment, three first lenses 120 are arranged within the first lens group 100, which are 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123, where 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123 are each provided with a first cut edge 101 and a second cut edge 102 facing each other, and three second lenses 220 are arranged within the second lens group 200, which are 2-1 lens 221, 2-2 lens Lenses 222 and 13-3 are provided, and lenses 2-1 221, 2-2 222, and 3-3 each have a third cut edge 201 and a fourth cut edge 202 facing each other. This reduces the radial dimension of each lens, which is advantageous for making the lens device 10 thinner, and also reduces the mounting dimensions between the first lens group 100 and the display screen 20 and housing 30, allowing the lens device 10 to be better concealed within the black border 21 of the display screen 20.

[0047] Naturally, in other embodiments, each lens in the lens device 10 may have a different cut edge design. For example, as shown in Figures 6 and 7, three first lenses 120 are arranged in the first lens group 100, which are 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123, where 1-1 lens 121, 1-2 lens 122, and 1-3 lens 123 are each provided with a first cut edge 101 and a second cut edge 102 facing each other. Two second lenses 220 are arranged in the second lens group 200, which are 2-1 lens 221 and 2-2 lens 222, where both 2-1 lens 221 and 2-2 lens 222 are provided with cut edges, thereby ensuring the optical performance of the lens device 10. Furthermore, the purpose of minimizing the dimensions of the first lens group 100 and the second lens group 200 in the lens device 10 by performing cut edges on each lens within the lens device 10 is to ensure that it does not significantly affect the optical performance of each lens within the lens device 10.

[0048] In one embodiment, as shown in Figures 2 and 3, a first stepped hole 111 is provided in the first lens barrel 110, and each of the first lenses 120 is housed in the respective stepped hole walls of the first stepped hole 111. A second stepped hole 211 is provided in the second lens barrel 210, and each of the second lenses 220 is housed in the respective stepped hole walls of the second stepped hole 211. A housing groove 212 communicating with the second stepped hole 211 is further provided in the second lens barrel 210, and the prism 300 is housed in the housing groove 212. This enables the mounting of each of the first lenses 120, each of the second lenses 220, and the prism 300.

[0049] In one embodiment, as shown in Figures 2 to 5, 8 and 9, a notch 213 is provided in the second lens barrel 210, and the first lens barrel 110 is housed in the notch 213, thereby facilitating the miniaturization and installation of the lens device 10. Specifically, a plurality of light-shielding sheets 420 are further provided within the first lens group 100 and the second lens group 200, each light-shielding sheet 420 is attached between two adjacent lenses, and at the same time, the plurality of light-shielding sheets 420 are adaptively provided with cut edges to follow each lens. Furthermore, an optical lens 230 is further provided within the second lens group 200, and the optical lens 230 is used to restrict each second lens 220 to the second lens barrel 210.

[0050] The above are merely embodiments of the present invention, and those skilled in the art can make improvements without departing from the spirit of the invention, but it should be noted that all such improvements fall within the scope of protection of the present invention. [Explanation of Symbols]

[0051] 10 Lens device, 20 Display screen, 21 Black border, 22 Display area, 23 Lens opening, 30 Housing 100 First lens group, 110 First lens barrel, 111 First stepped hole, 120 First lens, 121 1-1 lens, 122 1-2 lens, 123 1-3 lens, 101 First cut edge, 102 Second cut edge 200 Second lens group, 210 Second lens barrel, 211 Second stepped hole, 212 Housing groove, 213 Notch, 220 Second lens, 221 2-1 lens, 222 2-2 lens, 201 Third cut edge, 202 Fourth cut edge, 230 Optical lens 300 Prism, 310 First optical surface, 311 Aspherical surface, 320 Second optical surface, 330 Third optical surface 410 Adhesive, 420 Light-blocking sheet

Claims

1. A lens device, The lens device comprises a first lens group, a second lens group, and a prism, wherein the optical axes of the first lens group and the second lens group are set at an angle to each other, the optical path of the first lens group is set closer to the object than the optical path of the second lens group, and the prism is set between the first lens group and the second lens group and is used to bend the optical path. A cut edge is provided on the edge of at least one lens in the first lens group. A cut edge is provided on the edge of at least one lens in the second lens group. An aspherical surface is formed on the surface of the prism facing the first lens group. The first lens group includes a first lens barrel and a plurality of first lenses provided within the first lens barrel, and the second lens group includes a second lens barrel and a plurality of second lenses provided within the second lens barrel. A lens device characterized in that three first lenses are provided and two second lenses are provided.

2. The lens device according to claim 1, characterized in that the optical axis of the first lens group and the optical axis of the second lens group are installed vertically.

3. The lens device according to Claim 1, characterized in that the prism is provided inside the second lens barrel, and the first lens barrel is attached to the second lens barrel by adhesive such that the optical axis of the first lens group and the optical axis of the second lens group are positioned at a predetermined angle.

4. The lens device according to claim 3, wherein at least one of the first lenses is provided with a first cut edge and a second cut edge that are opposite to each other, and at least one of the second lenses is provided with a third cut edge and a fourth cut edge that are opposite to each other.

5. The lens device according to claim 3, characterized in that a first stepped hole is provided in the first lens barrel, each of the first lenses is housed in each stepped hole wall of the first stepped hole, a second stepped hole is provided in the second lens barrel, each of the second lenses is housed in each stepped hole wall of the second stepped hole, the second lens barrel is further provided with a housing groove communicating with the second stepped hole, and the prism is housed in the housing groove.

6. The lens device according to claim 3, characterized in that the second lens barrel is provided with a notch, and the first lens barrel is housed in the notch.

7. An electronic device comprising a housing, a display screen, and a lens device according to any one of claims 1 to 6, The optical axis of the first lens group is perpendicular to the display screen, and the first lens group is provided in close proximity to the inner wall of the display screen and the inner wall of the housing.

8. The electronic device according to claim 7, characterized in that the electronic device is a mobile phone.

Images