CN116774400A - Lens module based on super-surface lens and mobile electronic equipment with same - Google Patents
Lens module based on super-surface lens and mobile electronic equipment with same Download PDFInfo
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- CN116774400A CN116774400A CN202310826746.7A CN202310826746A CN116774400A CN 116774400 A CN116774400 A CN 116774400A CN 202310826746 A CN202310826746 A CN 202310826746A CN 116774400 A CN116774400 A CN 116774400A
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- 238000003384 imaging method Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 19
- 239000013307 optical fiber Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 32
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The invention provides a lens module based on a super-surface lens and mobile electronic equipment with the same, which comprises a screen layer and an imaging unit arranged below the screen layer, wherein the screen layer comprises a touch layer, the imaging unit comprises an image sensor, the lens module comprises a first super-surface lens unit and a second super-surface lens unit, the first super-surface lens unit is arranged in the screen layer, the second super-surface lens unit is arranged in the imaging unit, the first super-surface lens unit and the second super-surface lens unit respectively comprise a substrate and a microstructure unit array arranged on the substrate, and the microstructure unit array transmits and regulates light incident on the microstructure unit array; the first super-surface lens unit is configured to receive light rays and transmit the regulated light rays to the second super-surface lens unit; the second super-surface lens unit is configured to receive the light rays modulated and transmitted via the first super-surface lens unit and to modulate and transmit the light rays to the image sensor.
Description
Technical Field
The invention relates to the field of optical devices, in particular to a lens module based on a super-surface lens and mobile electronic equipment with the lens module.
Background
The traditional optical module is better to achieve the effect of approaching the full screen, the screen can be usually hollowed, the minimum size in the current industry can be 1.8mm, and the lens is difficult to further reduce due to factors such as the limiting forming thickness of the side wall of the shell, the limiting size of the injection molding of the lens, the minimum size of the non-residential area assembly of the lens and the like, so that the lens size is further reduced and even the full screen is obtained, and the problem to be solved urgently in the industry is solved.
Disclosure of Invention
The invention aims to provide a lens module based on a super-surface lens and mobile electronic equipment with the lens module.
The invention provides a lens module based on a super-surface lens, which comprises a screen layer and an imaging unit arranged below the screen layer, wherein the screen layer comprises a touch layer, the imaging unit comprises an image sensor, the lens module comprises a first super-surface lens unit and a second super-surface lens unit, the first super-surface lens unit is arranged in the screen layer, the second super-surface lens unit is arranged in the imaging unit, the first super-surface lens unit and the second super-surface lens unit respectively comprise a substrate and a microstructure unit array arranged on the substrate, and the microstructure unit array transmits and regulates light incident on the microstructure unit array;
the first super-surface lens unit is configured to receive light rays and transmit the regulated light rays to the second super-surface lens unit;
the second super-surface lens unit is configured to receive light rays transmitted through the first super-surface lens unit in a regulated manner and transmit the regulated light rays to the image sensor.
As a further improvement of the present invention, the first super surface lens unit has an outer diameter dimension of less than 1mm.
As a further improvement of the present invention, the first super surface lens unit is disposed within the touch layer.
As a further improvement of the present invention, the first and second super surface lens units are connected by an optical fiber.
As a further improvement of the present invention, the screen layer includes a touch layer and a frame disposed at a peripheral side of the touch layer, and the first super surface lens unit is disposed in the frame.
As a further improvement of the present invention, the second super-surface lens unit is composed of at least one super-surface lens and an optical geometry lens, and the second super-surface lens unit is disposed directly under the first super-surface lens unit, and the light rays are modulated by the first super-surface lens unit, then downwards transmitted to the second super-surface lens unit, and are modulated by the second super-surface lens unit, and then are transmitted to the image sensor through the conventional optical geometry lens.
As a further improvement of the present invention, the second super-surface lens unit is composed of at least one super-surface lens, the first super-surface lens unit and the second super-surface lens unit are asymmetrically arranged, and the first super-surface lens unit is configured to deflect light rays after being regulated and direct the light rays to the second super-surface lens unit, and direct the light rays to the image sensor after being regulated and direct the light rays to the image sensor via the second super-surface lens unit.
As a further improvement of the present invention, the second super surface lens unit is larger in size than the first super surface lens unit, the first and second super surface lens units are aligned in a vertical direction relatively away from an outer edge of the touch layer, and the second super surface lens unit extends from the bezel position to an area within the touch layer.
As a further improvement of the invention, the geometry of the microstructure unit is a cylinder and/or an elliptical body and/or a cuboid, and/or a hollowed cylinder and/or a hollowed elliptical body and/or a hollowed cuboid, and the geometry is rotated.
The invention also provides mobile electronic equipment, which comprises the lens module based on the super-surface lens.
The beneficial effects of the invention are as follows: according to the invention, the pair of super-surface lens units are used as the lens modules in the front camera, so that the size of the area occupied by the lens modules in the surface area of the screen can be obviously reduced, and further, the first super-surface lens unit is arranged in the frame area of the screen, so that a complete comprehensive screen technical scheme can be realized.
Drawings
Fig. 1 is a schematic diagram of a lens module structure based on a super surface lens in embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of a lens module structure based on a super surface lens in embodiment 2 of the present invention.
Fig. 3 is a schematic view of a lens module structure based on a super surface lens in embodiment 3 of the present invention.
Fig. 4 is a schematic view of a lens module structure based on a super surface lens in embodiment 4 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below in conjunction with the detailed description of the present invention and the corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
For purposes of illustration, terms such as "upper," "lower," "rear," "front," and the like, are used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may include different orientations of the device in use or operation than that illustrated in the figures. For example, if the device in the figures is turned over, elements described as "below" or "over" other elements or features would then be oriented "below" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both a spatial orientation of below and above.
The present embodiment provides a lens module, which is particularly suitable for front cameras of mobile electronic devices such as mobile phones and tablet computers, and by using a pair of super-surface lens units as the lens module in the front cameras, the area size occupied by the lens module in the surface area of the screen can be significantly reduced. The super-surface lens is a programmable planar medium with an artificially designed sub-wavelength structure, the surface of the super-surface lens is provided with a nano-scale microstructure unit, and the microstructure unit can be designed to have precise size, shape and arrangement mode, so that the high-degree customized control of light is realized, and the effect of more effectively encoding the intensity and phase distribution of the light is realized. Unlike conventional lenses, ultra-surface lenses use nano-scale metal structures and micro-patterns to control and manipulate light propagation and manipulation, and thus can function as conventional lenses in a smaller area. Therefore, in this embodiment, the size of the lens can be smaller than 1mm, so that the size of the black screen area occupied by the lens module in the screen touch layer is smaller than 1mm, and when the super-surface lens unit of the lens module is arranged in the screen frame, the structure of the nonporous full-screen can be thoroughly realized.
As shown in fig. 1, embodiment 1 provides a lens module including a screen layer 1 and an imaging unit 2 disposed under the screen layer 1, the imaging unit 2 including an image sensor 21.
The lens module comprises a first super-surface lens unit 3 and a second super-surface lens unit 4, wherein the first super-surface lens unit 3 is arranged in the screen layer 1, and the second super-surface lens unit 4 is arranged in the imaging unit 2.
In this embodiment, the lens module is applied to a mobile phone, the screen layer 1 includes a display layer and a touch layer 11 located below the display layer, the display layer is an LCD or OLED display layer, and the touch layer 11 is a capacitive touch layer 11. A through hole is formed in the touch layer 11, the first super-surface lens unit 3 is arranged in the through hole, and the first super-surface lens unit 3 can be attached through an adhesive layer or embedded into the through hole of the touch layer 11 through a nested structure. In other embodiments of the present invention, the lens module may be used in other electronic devices such as tablet computers that include a screen and a front-facing camera.
The imaging unit 2 includes a housing 22, and the second super surface lens unit 4 is disposed in the housing 22 and located at a position above the image sensor 21, and the second super surface lens unit 4 cooperates with a conventional optical lens disposed in the housing 22 to realize an imaging function through the imaging sensor. In embodiment 1, the first subsurface lens unit 3 is composed of one piece of subsurface lens; the second super surface lens unit 4 is provided to be composed of one piece of super surface lens 41 and conventional geometrical optical lens 42, and in other embodiments, the second super surface lens unit 4 is also provided to be composed of a plurality of pieces of super surface lenses and conventional geometrical optical lenses, or is provided to be composed of only one piece or a plurality of pieces of super surface lenses.
The first and second super-surface lens units 3 and 4 respectively include a substrate and a microstructure unit array provided on the substrate, the microstructure unit array propagating and modulating light incident thereon. As described above, by performing different structural designs on the microstructure unit array of the super-surface lens, the micro-structure unit array can have different regulation and control effects on light rays, thereby replacing the traditional optical lens. The focal length of the super-surface lens is adjusted by changing the structure of the microstructure unit, and it should be noted that, the structure of the microstructure unit specifically includes: the geometry, size, arrangement density, arrangement pattern, etc. of the microstructure elements are not limited to those of the individual structural elements. When light passes through the super-surface lens, the refractive index, the phase and the propagation speed of the light can be changed through the designed micro-structure unit of the super-surface lens, and the focusing, the amplifying, the converging and the like of the light can be realized through adjusting the parameter characteristics, so that the traditional optical lens is simulated. The first super surface lens unit 3 is configured to receive light and to direct the light back toward the second super surface lens unit 4. The second super surface lens unit 4 is configured to receive the light rays modulated and transmitted via the first super surface lens unit 3, and to transmit the modulated light rays to the image sensor 21.
Specifically, in this embodiment, the geometry of the structural unit is a cylinder and/or an elliptical body and/or a cuboid, and/or a hollowed cylinder and/or a hollowed elliptical body and/or a hollowed cuboid, and the geometry of the structural unit after the geometry is rotated can be regarded as air columns with different outer wall structures.
According to the specific macroscopic dimensions of the first and second super-surface lens units 3 and 4, the microstructure unit structures of the two may be correspondingly adjusted so that the optical path propagation path and the lens module structure are matched.
In embodiment 1, the first super surface lens unit 3, which serves to receive light, has an outer diameter of less than 1mm, which is disposed in the touch layer 11, and can significantly reduce the black screen area occupied by the lens in the screen, thereby improving the user experience.
As shown in fig. 2, embodiment 2 provides a lens module, which has a main structure similar to that of embodiment 1, and differs from embodiment 1 in that:
the first and second super surface lens units 3 and 4 are connected by an optical fiber 5. Preferably, the first and second super surface lens units 3 and 4 are connected by a lossless optical fiber 5, and the lossless optical fiber 5 can minimize attenuation and loss of an optical signal during optical signal transmission.
By connecting the first and second super surface lens units 3 and 4 using the optical fiber 5, transmission of an optical signal therebetween is achieved by the optical fiber 5, and the second super surface lens unit 4 can be designed to have an approximate size of the first super surface lens unit 3, thereby reducing the size and volume of the lens module. And the loss of light transmission in the lens module can be reduced.
As shown in fig. 3, embodiment 3 provides a lens module, which has a main structure similar to that of embodiment 1, and differs from embodiment 1 in that:
the screen layer 1 further includes a frame 12 disposed on the peripheral sides of the display layer and the touch layer 11, and the first super surface lens unit 3 is disposed in the frame 12. The second super-surface lens unit 4 is configured to be composed of a piece of super-surface lens 41 and an optical geometry lens 42, the second super-surface lens unit 4 is arranged right below the first super-surface lens unit 3, and light rays downwards propagate towards the second super-surface lens unit 4 after being regulated by the first super-surface lens unit 3 and are towards the image sensor 21 through the traditional optical geometry lens 42 after being regulated by the super-surface lens 41. In other embodiments, the second super surface lens unit 4 may also be configured to consist of a plurality of super surface lenses and optical geometry lenses.
The width of the mobile phone screen frame 12 on the market is generally about 3-5 mm, and the first super surface lens unit 3 with the size smaller than 1mm can be completely attached or embedded in the screen frame 12, so that in the scheme of embodiment 3, the lens module does not need to occupy the area space in the touch layer 11, and a complete comprehensive screen scheme is realized.
As shown in fig. 4, embodiment 4 provides a lens module, which has a main structure similar to that of embodiment 3, and differs from embodiment 3 in that:
the second super surface lens unit 4 is larger in size than the first super surface lens unit 3, the second super surface lens unit 4 is configured to be composed of one piece of super surface lens, the first super surface lens unit 3 and the second super surface lens unit 4 are asymmetrically arranged, and the first super surface lens unit 3 is configured to deflect light rays after being regulated and directed to the second super surface lens unit 4 and to the image sensor 21 after being regulated and directed through the second super surface lens unit 4. In other embodiments, the second super surface lens unit 4 may also be provided to consist of a plurality of super surface lenses.
Further, the first and second super surface lens units 3 and 4 are aligned in a vertical direction relatively far from the outer edge of the touch layer 11, and the second super surface lens unit 4 extends from the position of the frame 12 to the inner area of the touch layer 11.
In the solution of embodiment 4, the super-surface lens is adopted to completely replace the conventional optical lens, and the deflection, amplification, correction and the like of the light are realized through the first super-surface lens unit 3, so that the light can also realize high quality imaging in the lens module with an asymmetric structure, thereby reducing the occupation of the lens module to the space outside the screen frame 12 to the greatest extent, and realizing the technical scheme of the screen with a narrow frame 12.
The embodiment also provides a mobile electronic device, which comprises the lens module.
In summary, in this embodiment, the lens module of the front camera is formed by a pair of super-surface lens units, so that the size of the area occupied by the lens module in the screen surface area can be significantly reduced, and the first super-surface lens unit is disposed in the screen frame area, so that a complete and comprehensive screen technical scheme can be realized.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and is not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a camera lens module based on super surface lens, its include the screen layer with set up in imaging unit under the screen layer, the screen layer includes the touch layer, imaging unit includes image sensor, its characterized in that:
the lens module comprises a first super-surface lens unit and a second super-surface lens unit, the first super-surface lens unit is arranged in a screen layer, the second super-surface lens unit is arranged in the imaging unit, the first super-surface lens unit and the second super-surface lens unit respectively comprise a substrate and a microstructure unit array arranged on the substrate, and the microstructure unit array transmits and regulates light rays incident on the microstructure unit array;
the first super-surface lens unit is configured to receive light rays and transmit the regulated light rays to the second super-surface lens unit;
the second super-surface lens unit is configured to receive light rays transmitted through the first super-surface lens unit in a regulated manner and transmit the regulated light rays to the image sensor.
2. The lens module of claim 1, wherein the first super surface lens unit outer diameter is less than 1mm.
3. The lens module of claim 2, wherein the first super-surface lens unit is disposed within the touch layer.
4. The lens module of claim 2, wherein the first and second super surface lens units are connected by an optical fiber.
5. The lens module of claim 1, wherein the screen layer comprises a touch layer and a bezel disposed on a peripheral side of the touch layer, and the first super surface lens unit is disposed within the bezel.
6. The lens module based on the super surface lens according to claim 5, wherein the second super surface lens unit is composed of at least one super surface lens and an optical geometry lens, the second super surface lens unit is arranged under the first super surface lens unit, and light rays are downwards transmitted to the second super surface lens unit after being regulated by the first super surface lens unit, and are transmitted to the image sensor through a traditional optical geometry lens after being regulated by the second super surface lens unit.
7. The lens module of claim 5, wherein the second super-surface lens unit is composed of at least one super-surface lens, the first and second super-surface lens units are asymmetrically arranged, and the first super-surface lens unit is configured to deflect light rays after modulation toward the second super-surface lens unit and via the second super-surface lens unit toward the image sensor.
8. The super surface lens based lens module as claimed in claim 7, wherein the second super surface lens unit is larger in size than the first super surface lens unit, the first and second super surface lens units being aligned in a vertical direction relatively away from an outer edge of the touch layer, the second super surface lens unit extending from the rim position into an area within the touch layer.
9. The lens module based on the super surface lens according to claim 1, wherein the geometric shape of the microstructure unit is a cylinder and/or an elliptical body and/or a cuboid, and/or a hollowed cylinder and/or a hollowed elliptical body and/or a hollowed cuboid, and the geometric shape is a shape after rotation.
10. A mobile electronic device, characterized in that it comprises a lens module based on a super surface lens according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310826746.7A CN116774400A (en) | 2023-07-06 | 2023-07-06 | Lens module based on super-surface lens and mobile electronic equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310826746.7A CN116774400A (en) | 2023-07-06 | 2023-07-06 | Lens module based on super-surface lens and mobile electronic equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116774400A true CN116774400A (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310826746.7A Pending CN116774400A (en) | 2023-07-06 | 2023-07-06 | Lens module based on super-surface lens and mobile electronic equipment with same |
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| Country | Link |
|---|---|
| CN (1) | CN116774400A (en) |
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2023
- 2023-07-06 CN CN202310826746.7A patent/CN116774400A/en active Pending
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