Narrow-edge lens module and electronic device
By employing an unconventional ring-shaped optical pad design in the lens module, the problem of stray light during the lens module reduction process was solved, resulting in a narrow bezel and a thinner lens module, thus improving image quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2026-04-07
AI Technical Summary
Existing lens modules occupy a large space in electronic devices, making it difficult to achieve narrow bezels and a thinner design. At the same time, stray light is generated during the reduction process, affecting image quality.
A narrow-bezel lens module is designed, employing an optical pad with a non-traditional ring structure in a specific direction. Through the special edge cutting and microstructure design of the optical pad, stray light is blocked and scattered, thereby improving image quality.
It effectively blocks and scatters stray light, reduces the space occupied by the lens module in a specific direction, achieves narrow bezels and a thinner profile, and improves image quality.
Smart Images
Figure CN121806227A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a narrow border lens module, and particularly to an electronic device with a narrow border lens module. BACKGROUND
[0002] The shooting function is an indispensable function for terminal electronic devices (such as mobile phones, notebook computers, tablets, etc.), and in order to obtain good image quality and camera effect, lens modules are installed in electronic devices to provide extensive shooting functions. Electronic devices emphasize screen-to-body ratio, and the front of a general electronic device needs to be provided with a front lens and other components in addition to a display screen, which affects the screen-to-body ratio of the electronic device.
[0003] At present, the lightness and thinness and narrow border of electronic devices are the development needs of the industry. The lens module is usually arranged on the border of the display screen of the electronic device, and since the lens module has a certain height and width, when the lens module is arranged on the border of the display screen of the electronic device, it is difficult for the electronic device to achieve a narrow border, and it also increases the thickness of the electronic device, making it difficult to achieve lightness and thinness.
[0004] The lens imaging circle is usually larger than the size of the optical sensor (Sensor), and reducing the lens module in a specific direction to improve the screen-to-body ratio is the main design trend at present. However, while reducing the specific direction of the lens module 9 (such as shown in Figure 1 , extra stray light may be generated, such as stray light hitting the outside of the lens at a large angle.
[0005] Therefore, there is a need to provide a narrow border lens module and an electronic device that can meet the foregoing needs. SUMMARY
[0006] An object of the present application is to provide an optical gasket for a narrow border lens module having a non-traditional ring structure in a specific direction.
[0007] According to the above-mentioned purpose, the present application provides a slim lens module, which defines a central axis, an X-axis, a Y-axis, an object side and an image side, wherein the central axis, the X-axis and the Y-axis are perpendicular to each other, and the image side is opposite to the object side, the slim lens module comprising: a lens barrel; an optical lens group arranged in the lens barrel, wherein the optical lens group comprises at least one lens; an optical spacer arranged in the lens barrel and located on an object side surface of the lens; and an optical sensor arranged in the lens barrel and located on an imaging surface; wherein the optical spacer comprises an annular body having an outer periphery and an inner periphery, the outer periphery surrounds the inner periphery, and the inner periphery surrounds an opening; the outer periphery comprises first and second cut edges which are respectively inwardly recessed along the Y-axis towards the center of the optical spacer, the inner periphery comprises third and fourth cut edges which are respectively inwardly recessed along the Y-axis towards the center of the optical spacer; and the distance between the first and second cut edges is D2, the distance between the third and fourth cut edges is D1, and the following condition is satisfied: 0.05≦D1 / D2≦0.95.
[0008] Optionally, the first to fourth cut edges are all planar.
[0009] Optionally, the inner periphery further comprises four corners which are respectively outwardly expanded in opposite directions towards the center of the optical spacer.
[0010] Optionally, the third and fourth cut edges are both wavy surfaces.
[0011] Optionally, the outer periphery further comprises fifth and sixth cut edges which are respectively inwardly recessed along the X-axis towards the center of the optical spacer, and the inner periphery further comprises seventh and eighth cut edges which are respectively inwardly recessed along the X-axis towards the center of the optical spacer.
[0012] Optionally, the third, fourth, seventh and eighth cut edges are all wavy surfaces.
[0013] Optionally, the inner periphery further comprises four corners which are respectively formed into diagonal circular arcs.
[0014] Optionally, the third, fourth, seventh and eighth cut edges are all arc surfaces, and the inner periphery further comprises four corners which are respectively outwardly expanded in opposite directions towards the center of the optical spacer into a transmission part.
[0015] Optionally, the inner periphery comprises an inner side surface provided with a plurality of concentric ring-shaped microstructures, radial microstructures or V-shaped microstructures.
[0016] The present application further provides an electronic device, comprising: a housing; the slim lens module arranged in the housing; and a control element arranged in the housing and electrically connected to the optical sensor.
[0017] The optical spacer of the present application has a non-conventional ring structure in a specific direction, which can solve the stray light in a specific direction of Y-axis or X-axis and improve the imaging quality BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A cross-sectional view of a prior art lens module.
[0019] Figure 2 A combined cross-sectional view of a narrow border lens module of an embodiment of the present application.
[0020] Figure 3 An exploded perspective view of a narrow border lens module of an embodiment of the present application.
[0021] Figure 4 A front view of a narrow border lens module of an embodiment of the present application.
[0022] Figure 5 A perspective view of an optical spacer of a narrow border lens module of an embodiment of the present application.
[0023] Figure 5A A plan view of an optical spacer of a narrow border lens module of a first embodiment of the present application.
[0024] Figure 5B A plan view of an optical spacer of a narrow border lens module of a second embodiment of the present application.
[0025] Figure 5C A plan view of an optical spacer of a narrow border lens module of a third embodiment of the present application.
[0026] Figure 5D A plan view of an optical spacer of a narrow border lens module of a fourth embodiment of the present application.
[0027] Figure 5E A plan view of an optical spacer of a narrow border lens module of a fifth embodiment of the present application.
[0028] Figure 5F A plan view of an optical spacer of a narrow border lens module of a sixth embodiment of the present application.
[0029] Figure 5G A plan view of an optical spacer of a narrow border lens module of a seventh embodiment of the present application.
[0030] Figure 5H A plan view of an optical spacer of a narrow border lens module of an eighth embodiment of the present application.
[0031] Figure 5I A plan view of an optical spacer of a narrow border lens module of a ninth embodiment of the present application.
[0032] Figures 6A to 6D Four kinds of relationship between the optical sensor size and the lens imaging area of the narrow-bezel lens module of an embodiment of the present application.
[0033] Figures 7A to 7E A comparison and contrast diagram of the prior art and the narrow-bezel lens module of other embodiments of the present application.
[0034] Figure 8 A cross-sectional diagram of an electronic device of an embodiment of the present application.
[0035] Legend in the figure: 1 narrow-bezel lens module; 11 lens barrel; 12 optical lens group; 120 lens; 1201 object-side surface; 1202 image-side surface; 13 optical sensor; 14 optical spacer; 140 annular body; 141 outer periphery; 1411 first cut edge; 1412 second cut edge; 1413 fifth cut edge; 1414 sixth cut edge; 142 inner periphery; 1421 third cut edge; 1422 fourth cut edge; 1423 seventh cut edge; 1424 eighth cut edge; 1427 corner; 1428 corner; 1429 corner; 143 center; 149 opening; 15 filter; 16 protective glass; 19 lens imaging area; 2 electronic device; 20 housing; 21 control element; 9 narrow-bezel lens module; CL central axis; D1 distance; D2 distance; OS object side; R arc radius; SS source side; θ arc central angle. DETAILED DESCRIPTION
[0036] In order to make the above objectives, features and characteristics of the present application more apparent, comprehensible and easier to understand, the relevant embodiments of the present application are described in detail below with reference to the drawings.
[0037] Figure 2 A combined cross-sectional diagram of the narrow-bezel lens module of an embodiment of the present application. Figure 3 An exploded perspective diagram of the narrow-bezel lens module of an embodiment of the present application. Figure 4 A front view diagram of the narrow-bezel lens module of an embodiment of the present application. Please refer to Figure 2 , Figure 3 and Figure 4 , the narrow-bezel lens module 1 defines a central axis CL, an X-axis, a Y-axis, an object side OS and an image side IS, the central axis CL, the X-axis and the Y-axis are perpendicular to each other, and the image side OS is opposite to the object side OS. The narrow-bezel lens module 1 comprises a lens barrel 11, an optical lens group 12, an optical spacer 14 and an optical sensor 13.
[0038] Please refer to Figure 2 and Figure 3 The optical lens assembly 12 is disposed in the lens barrel 11, wherein the optical lens assembly 12 comprises at least one lens 120. For example, the optical lens assembly 12 comprises a plurality of lenses 120, such as a first lens to an Nth lens, the Nth lens being the lens closest to the image side IS of the optical lens assembly 12, and N being an integer greater than 0. The optical spacer 14 is disposed in the lens barrel 11 and located on the object side surface 1201 of the lens 120. In this embodiment, the optical spacer 14 (for example, as a spacer ring between the lenses 120) can be located on the non-optical area of the object side surface 1201 of the lens 120. The narrow border lens module 1 further comprises a plurality of optical elements disposed in the lens barrel 11, which can be optical filters (such as infrared filters, infrared bandpass filters, or other light waveband filters, etc.) or light-shielding plates (such as aperture stops or light stops for correcting marginal rays, etc.).
[0039] The optical sensor 13 is disposed in the lens barrel 11 and located on an imaging surface. The optical sensor 13 can be an image sensor. The narrow border lens module 1 further comprises a filter 15 and a protection glass 16, which are sequentially disposed between the optical lens assembly 12 and the optical sensor 13.
[0040] Figure 5 A perspective view of the optical spacer of the narrow border lens module according to an embodiment of the present application. Figure 5A A plan view of the optical spacer of the narrow border lens module according to the first embodiment of the present application. Please refer to Figure 5 and Figure 5A The optical spacer 14 comprises an annular body 140 having an outer periphery 141 and an inner periphery 142, the outer periphery 141 surrounding the inner periphery 142, and the inner periphery 142 surrounding an opening 149; the outer periphery 141 comprises a first cut edge 1411 and a second cut edge 1412, which respectively extend along the Y axis towards the center 143 of the optical spacer 14 (i.e. close to the optical axis OX of the narrow border lens module 1) and away from the optical axis OX of the narrow border lens module 1; the inner periphery 142 comprises a first cut edge 1421 and a second cut edge 1422, which respectively extend along the Y axis towards the center 143 of the optical spacer 14 (i.e. close to the optical axis OX of the narrow border lens module 1) and away from the optical axis OX of the narrow border lens module 1. Figure 4The inner periphery 142 is recessed from the position of the central axis CL, and includes a third tangent 1421 and a fourth tangent 1422, which are recessed along the Y-axis toward the center 143 of the optical pad 14; and the distance between the first tangent 1411 and the second tangent 1412 is D2, and the distance between the third tangent 1421 and the fourth tangent 1422 is D1, satisfying the following condition: 0.05≦D1 / D2≦0.95. The first to fourth tangents 1411, 1412, 1421, and 1422 are all planar. The distance D2 between the first tangent 1411 and the second tangent 1412 is between 2.670±0.267mm, but not limited thereto; preferably, the distance D2 is 2.67mm. The distance D1 between the third cut edge 1421 and the fourth cut edge 1422 is between 1.737 ± 0.174 mm, but is not limited thereto; preferably, the distance D1 is 1.737 mm.
[0041] Because existing narrow-edge lens modules shrink along the Y-axis, they may generate additional stray light, such as stray light hitting the outside of the lens at a large angle. The optical pad design proposed in this invention can block this large-angle stray light, thus solving the problem of additional stray light generated after the narrow-edge lens module design.
[0042] Figure 5B This is a planar schematic diagram of the optical pad of the narrow-bezel lens module according to the second embodiment of the present invention. Please refer to... Figure 5 and Figure 5B The optical pad 14 of the second embodiment is generally similar to the optical pad 14 of the first embodiment, except that the inner periphery 142 further includes four corners 1429, which extend outward in the opposite direction to the center 143 of the optical pad 14 to form transmission portions. These transmission portions can solve the problems of relative illumination (RI) and vignetting.
[0043] Figure 5C This is a planar schematic diagram of the optical pad of the narrow-bezel lens module according to the third embodiment of the present invention. Please refer to... Figure 5 and Figure 5C The optical pad 14 of the third embodiment is generally similar to the optical pad 14 of the second embodiment, except that the third cut edge 1421 and the fourth cut edge 1422 are both wavy surfaces, which can scatter light to solve the problem of stray light.
[0044] Figure 5D This is a planar schematic diagram of the optical pad of the narrow-bezel lens module according to the fourth embodiment of the present invention. Please refer to... Figure 5 and Figure 5D, the optical spacer 14 of the fourth embodiment is substantially similar to the optical spacer 14 of the first embodiment, with the difference that the outer periphery 141 further comprises a fifth cut edge 1413 and a sixth cut edge 1414, which are respectively inwardly recessed along the X-axis towards the center 143 of the optical spacer 14, and the inner periphery 142 further comprises a seventh cut edge 1423 and an eighth cut edge 1424, which are respectively inwardly recessed along the X-axis towards the center 143 of the optical spacer 14. The third cut edge 1421, the fourth cut edge 1422, the seventh cut edge 1423 and the eighth cut edge 1424 are all wavy surfaces, which can scatter light to solve the problem of stray light. In order to save the space of the narrow-bezel lens module of the prior art, the narrow-bezel lens module of the present application is also reduced in the X-axis direction, which can also generate additional stray light, and the optical spacer of the present application can also be used to block stray light.
[0045] Figure 5E is a plan view of the optical spacer of the narrow-bezel lens module of the fifth embodiment of the present application. Please refer to Figure 5 and Figure 5E , the optical spacer 14 of the fifth embodiment is substantially similar to the optical spacer 14 of the fourth embodiment, with the difference that the inner periphery 142 further comprises four corners 1428, which respectively form diagonal circular arcs. For example, the radius of the circular arc is R, 0.03mm ≦ R ≦ ∞. The central angle of the circular arc is θ, 10 o ≦ θ ≦ 80 o .
[0046] Figure 5F is a plan view of the optical spacer of the narrow-bezel lens module of the sixth embodiment of the present application. Please refer to Figure 5 and Figure 5F , the optical spacer 14 of the sixth embodiment is substantially similar to the optical spacer 14 of the fourth embodiment, with the difference that the third cut edge 1421, the fourth cut edge 1422, the seventh cut edge 1423 and the eighth cut edge 1424 are all arc surfaces, and the inner periphery further comprises four corners 1427, which respectively outwardly expand into a transmission portion towards the center 143 of the optical spacer 14. The transmission portion can solve the problems of relative illumination (RI) and dark corner.
[0047] Figure 5G is a plan view of the optical spacer of the narrow-bezel lens module of the seventh embodiment of the present application. Please refer to Figure 5 and Figure 5G , the inner periphery 142 of the optical spacer 14 comprises an inner side surface 1426 (for example, an inclined surface) provided with a plurality of concentric ring-shaped microstructures. Figure 5HThe planar schematic diagram of the optical spacer of the narrow-bezel lens module of the eighth embodiment of the present application. Please refer to Figure 5 and Figure 5H The inner periphery 142 of the optical spacer 14 includes an inner side surface 1426 (e.g. an inclined surface) provided with a radial microstructure. Figure 5I The planar schematic diagram of the optical spacer of the narrow-bezel lens module of the ninth embodiment of the present application. Please refer to Figure 5 and Figure 5H The inner periphery 142 of the optical spacer 14 includes an inner side surface 1426 (e.g. an inclined surface) provided with a V-shaped microstructure. The inner side surface of the inner periphery of the optical spacer provided with the microstructure design can scatter stray light by the special microstructure to improve the imaging quality.
[0048] Figures 6A to 6D The schematic diagram of four relationships between the optical sensor size and the lens imaging area of the narrow-bezel lens module of an embodiment of the present application. The size of the optical sensor 13 is usually set to a 3:4 or 9:16 aspect ratio, but not limited thereto; and the lens imaging area 19 is usually larger than the size of the optical sensor 13. Please refer to Figure 6A When the narrow-bezel size of the lens module is reduced to the position outside the lens barrel, the lens imaging area 19 is still a complete circle without sacrificing the range of the lens imaging area 19. Please refer to Figure 6B and Figure 4 When the narrow-bezel size of the lens module is reduced to the position of the non-optical area of the optical lens group along the Y-axis direction, the range of the lens imaging area 19 in the specific direction of the Y-axis is sacrificed. Please refer to Figure 6C and Figure 4 When the narrow-bezel size of the lens module is reduced to the position of the non-optical area of the optical lens group along the Y-axis and X-axis directions, the range of the lens imaging area 19 in the specific direction of the Y-axis and X-axis is sacrificed. Please refer to Figure 6D and Figure 4 When the narrow-bezel size of the lens module is reduced to the position of the non-optical area of the optical lens group along the Y-axis and X-axis directions, the range of the lens imaging area 19 in the specific direction of the Y-axis and X-axis is mostly sacrificed.
[0049] Figures 7A to 7E The comparison and contrast schematic diagram of the narrow-bezel lens module of the prior art and the narrow-bezel lens module of other embodiments of the present application. Please refer to Figure 7A The stray light path of the narrow-bezel lens module 9 of the prior art hits the outside of the lens 120, and the narrow-bezel lens module 1 of the present application solves the problem of the stray light path hitting the outside of the lens 120. Please refer to Figure 7B The stray light path of the narrow-bezel lens module 9 of the prior art hits the side wall of the lens barrel 11, and the narrow-bezel lens module 1 of the present application solves the problem of the stray light path hitting the side wall of the lens barrel 11. Please refer toFigure 7C The stray light path of the prior art narrow-bezel lens module 9 hits the side wall of the filter 15, while the stray light path of the narrow-bezel lens module 1 of the present application solves the problem of hitting the side wall of the filter 15. Please refer to Figure 7D The stray light path of the prior art narrow-bezel lens module 9 hits the side wall of the protective glass 16, while the stray light path of the narrow-bezel lens module 1 of the present application solves the problem of hitting the side wall of the protective glass 16. Please refer to Figure 7E The stray light path of the prior art narrow-bezel lens module 9 hits the gold wire of the optical sensor 13, while the stray light path of the narrow-bezel lens module 1 of the present application solves the problem of hitting the gold wire of the optical sensor 13. When the optical gasket 14 of the present application is designed as the above-mentioned embodiment, it can block stray light from a large angle, and intercepts the stray light path before it hits the outside of the lens 120, the side wall of the lens barrel 11, the side wall of the filter 15, the side wall of the protective glass 16, or the gold wire of the optical sensor 13, so as to improve the imaging quality. Therefore, the optical gasket of the present application has a non-traditional ring-shaped structure in a specific direction, which can solve the stray light in the Y-axis or X-axis direction and improve the imaging quality.
[0050] Figure 8 A cross-sectional view of an electronic device according to an embodiment of the present application. The electronic device 2 includes a housing 20, a narrow-bezel lens module 1 of the present application, and a control element 21. The narrow-bezel lens module 1 is disposed in the housing 20. The control element 21 is disposed in the housing 20 and is electrically connected to the optical sensor of the narrow-bezel lens module 1. The electronic device of the present application can be a mobile phone, a laptop, etc. The narrow-bezel lens module provided by the present application can be applied to electronic image systems in photography, monitoring, automation equipment, vehicle panoramic systems, and Internet of Things (IOT) devices, but is not limited thereto.
[0051] In summary, the present application only describes the preferred embodiments or examples of the technical means adopted to solve the problems, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made in accordance with the scope of the present application are also covered by the present application.
Claims
1. A narrow-bezel lens module, defined by a central axis, an X-axis, a Y-axis, an object side, and an image side, characterized in that, The central axis, the X-axis, and the Y-axis are perpendicular to each other, and the image side is opposite to the object side. The narrow-bezel lens module includes: One lens tube; An optical lens group is disposed within the lens barrel, wherein the optical lens group includes at least one lens; An optical pad is disposed inside the lens barrel and located on an object-side surface of the lens; and An optical sensor is disposed inside the lens barrel and located on an imaging plane; The optical pad includes an annular body having an outer periphery and an inner periphery, the outer periphery surrounding the inner periphery, and the inner periphery forming an opening. The outer periphery includes a first tangent and a second tangent, which are respectively recessed inward along the Y-axis toward the center of the optical pad; the inner periphery includes a third tangent and a fourth tangent, which are respectively recessed inward along the Y-axis toward the center of the optical pad; and The distance between the first and second cutting edges is D2, and the distance between the third and fourth cutting edges is D1, satisfying the following condition: 0.05≦D1 / D2≦0.
95.
2. The narrow-bezel lens module as described in claim 1, characterized in that, The first to fourth cutting edges are all planar.
3. The narrow-bezel lens module as described in claim 1, characterized in that, The inner periphery further includes four corners, which extend outward in the opposite direction to the center of the optical pad.
4. The narrow-bezel lens module as described in claim 3, characterized in that, Both the third and fourth cut edges have wavy surfaces.
5. The narrow-bezel lens module as described in claim 1, characterized in that, The outer periphery further includes a fifth tangent and a sixth tangent, which are respectively recessed inward along the X-axis toward the center of the optical pad, and the inner periphery further includes a seventh tangent and an eighth tangent, which are respectively recessed inward along the X-axis toward the center of the optical pad.
6. The narrow-bezel lens module as described in claim 5, characterized in that, The third, fourth, seventh, and eighth cut edges all have wavy surfaces.
7. The narrow-bezel lens module as described in claim 6, characterized in that, The inner perimeter further includes four corners, each forming a diagonal arc.
8. The narrow-bezel lens module as described in claim 5, characterized in that, The third, fourth, seventh, and eighth cleaving edges are all arc-shaped surfaces, and the inner periphery further includes four corners that expand outward in the opposite direction to the center of the optical pad to form a transmission portion.
9. The narrow-bezel lens module as described in claim 1, characterized in that, The inner periphery includes an inner surface having multiple concentric ring-shaped microstructures, radial microstructures, or V-shaped microstructures.
10. An electronic device, characterized in that, include: A shell; The narrow-bezel lens module as described in any one of claims 1 to 9 is disposed within the housing; A control element is disposed within the housing and electrically connected to the optical sensor.