CN207588986U - A kind of camera module - Google Patents
A kind of camera module Download PDFInfo
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- CN207588986U CN207588986U CN201721676133.6U CN201721676133U CN207588986U CN 207588986 U CN207588986 U CN 207588986U CN 201721676133 U CN201721676133 U CN 201721676133U CN 207588986 U CN207588986 U CN 207588986U
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- photosensitive element
- photosurface
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- camera lens
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Abstract
This application discloses a kind of camera module, including：Photosensitive element and the camera lens positioned at the photosurface side of photosensitive element；The photosurface of photosensitive element is curved, so that the optical path difference that each road light come in from camera lens convergence reaches photosensitive element photosurface is identical.The above-mentioned camera module that the application provides uses curved surface photosensitive element, the optical path difference that Shi Ge roads light reaches photosensitive element photosurface is consistent, so as to make object in image plane in improving picture, in this way by eliminating curvature of the image, on the one hand it can simplify the processing procedure difficulty of high pixel large aperture camera module, reduce module production threshold, it is cost-effective, on the other hand module quadrangle resolution factor can be improved, reduces module distortion.
Description
Technical field
The utility model is related to camera technology field, more particularly to a kind of camera module.
Background technology
Existing camera module uses plane photosensitive element (sensor), for using the camera lens (lens) of spherical surface, due to
It is different by lens arrival sensor optical path differences, it can be bent after pinhole imaging system in axis shape imaging surface, lead to center most clear
At clear, quadrangle, which exists, to be obscured, and exists simultaneously distortion, it is impossible into perfect picture.And existing mobile phone camera is just towards big light
Circle, the development of high pixel orientation, f-number is increasing, and pixel is higher and higher, causes curvature of the image phenomenon increasingly severe.
Current technique solves quadrangle generally by active calibration (Active Alignment, abbreviation AA) technology and obscures
The problem of, but Dutch treatment journey equipment is expensive, and jig is more, and fixture is of high cost, and cannot solve aberration problems, is unfavorable for small lot production.
Therefore, how to solve the problems, such as high pixel large aperture module curvature of the image and distortion, be those skilled in the art urgently
Technical problem to be solved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of camera modules, can simplify the processing procedure difficulty of module,
It is cost-effective, while module quadrangle resolution factor can be improved, reduce module distortion.Its concrete scheme is as follows：
A kind of camera module, including：Photosensitive element and the camera lens positioned at the photosurface side of the photosensitive element；
The photosurface of the photosensitive element is curved, so as to be converged from the camera lens described in each road light arrival come in
The optical path difference of photosensitive element photosurface is identical.
Preferably, in the above-mentioned camera module provided in the utility model embodiment, the photosurface of the photosensitive element is
Concavity.
Preferably, in the above-mentioned camera module provided in the utility model embodiment, the thickness of the photosensitive element is uniform.
Preferably, in the above-mentioned camera module provided in the utility model embodiment, the camera lens to the photosensitive element
The distance of photosurface is gradually reduced from the center of the photosensitive element to edge.
Preferably, in the above-mentioned camera module provided in the utility model embodiment, the photosensitive element is with center line
For axisymmetric graphic structure.
Preferably, in the above-mentioned camera module provided in the utility model embodiment, the center of the camera lens is positioned at described
On the center line of photosensitive element.
Preferably, in the above-mentioned camera module provided in the utility model embodiment, the visual field of the camera lens is bigger, described
The size of photosensitive element is bigger.
A kind of camera module provided by the utility model, including：Photosensitive element and the photosurface positioned at photosensitive element
The camera lens of side；The photosurface of photosensitive element is curved, so that each road light come in from camera lens convergence reaches photosensitive element
The optical path difference of photosurface is identical.Above-mentioned camera module provided by the utility model uses curved surface photosensitive element, and Shi Ge roads light arrives
Optical path difference up to photosensitive element photosurface is consistent, so as to make object in image plane in picture is improved, in this way by eliminating curvature of the image,
On the one hand it can simplify the processing procedure difficulty of high pixel large aperture camera module, reduce module production threshold, cost-effective, the opposing party
Face can improve module quadrangle resolution factor, reduce module distortion.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structure diagram of camera module that the utility model embodiment provides；
Fig. 2 is the side view of photosensitive element that the utility model embodiment provides；
Fig. 3 is that the principle for the camera module that the utility model embodiment provides derives schematic diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
The utility model provides a kind of camera module, as depicted in figs. 1 and 2, including：Photosensitive element 1 and positioned at photosensitive
The camera lens 2 of the photosurface side of element 1；
The photosurface of photosensitive element 1 is curved, so that each road light come in from the convergence of camera lens 2 reaches photosensitive element 1
The optical path difference of photosurface is identical.
In the above-mentioned camera module provided in the utility model embodiment, using curved surface photosensitive element, Shi Ge roads light arrives
Optical path difference up to photosensitive element photosurface is consistent, so as to make object in image plane in picture is improved, in this way by eliminating curvature of the image,
On the one hand it can simplify the processing procedure difficulty of high pixel large aperture camera module, reduce module production threshold, cost-effective, the opposing party
Face can improve module quadrangle resolution factor, reduce module distortion.
It should be noted that making object in image plane in improving picture, that is, realize and improve imaging, this improve imaging refer to object with
As between have size variation and formless variation, i.e. object with as completely it is similar be imaged.
According to the condition of perfect imaging, it is desirable that equivalent optical path.If the equivalent optical path of light from the object side to the image side, then
Image space will be into perfect picture, i.e. image distortion very little, and there is no losses for resolution factor.
Specifically, as shown in Figure 3, it is assumed that light pencil is through spherical imaging：
A1A A2And A2’A’A1' it is spherical surface using O as the centre of sphere, according to aplanatism formula
A1A1’nGlass=A A ' nGlass=A2A2’nGlass。
Therefore A2’A’A1' it is known as A1AA2Perfect picture, but for the object B of the wide light velocity1AB2There is the object of one fixed width
Body, nIt is emptyB1A1+nGlassA1A1’≠A1A1’nGlass, nIt is emptyB2A2+nGlassA2A2’≠A1A1’nGlass, so module is not into perfect picture, therefore module is deposited
In curvature of the image, according to curvature of the image aplanatism formula, we tentatively know that practical image planes imaging image planes can be shaped like B2’A’B1’。
Therefore, as long as the photosurface of photosensitive element is made shaped like B2’A’B1' shape can solve.
Preferably, in the specific implementation, in the above-mentioned camera module provided in the utility model embodiment, as shown in Fig. 2,
The photosurface of photosensitive element could be provided as concavity.
Further, in the specific implementation, in the above-mentioned camera module provided in the utility model embodiment, photosensitive element
Thickness can be it is uniform, i.e., the shape of photosensitive element at this time is consistent or similar with the shape of contact lenses.Certainly, it is photosensitive
The thickness of element can not also be uniform, as long as the optical path difference for meeting each road light arrival 1 photosurface of photosensitive element is identical,
This is not limited.
In the specific implementation, in the above-mentioned camera module provided in the utility model embodiment, as shown in Figure 1, camera lens 2 arrives
The distance of 1 photosurface of photosensitive element is gradually reduced from the center of photosensitive element 1 to edge, is advantageously implemented each road light in this way and is arrived
Optical path difference up to 1 photosurface of photosensitive element is identical.
Specifically, in the specific implementation, in the above-mentioned camera module provided in the utility model embodiment, as shown in Fig. 2,
Photosensitive element could be provided as using center line as axisymmetric graphic structure.
Further, in the specific implementation, in the above-mentioned camera module provided in the utility model embodiment, for each road
Light can be projected on photosensitive element, and the center of camera lens can be located on the center line of photosensitive element.
In the specific implementation, in the above-mentioned camera module provided in the utility model embodiment, existing tool can be passed through
There is the place of camera lens in the camera module of plane photosensitive element, to calculate the curvature of the image degree at each visual angle, so as to design
The structure of curved surface photosensitive element, when the visual field of camera lens is bigger, the size of photosensitive element generally also can be bigger.
A kind of camera module that the utility model embodiment provides, including：Photosensitive element and the sense positioned at photosensitive element
The camera lens of smooth surface side；The photosurface of photosensitive element is curved, so that each road light arrival come in from camera lens convergence is photosensitive
The optical path difference of element photosurface is identical.Above-mentioned camera module provided by the utility model uses curved surface photosensitive element, Shi Ge roads light
The optical path difference that line reaches photosensitive element photosurface is consistent, so as to make object in image plane in picture is improved, in this way by eliminating image planes
On the one hand bending can simplify the processing procedure difficulty of high pixel large aperture camera module, reduce module production threshold, cost-effective,
On the other hand module quadrangle resolution factor can be improved, reduces module distortion.
Finally, it is to be noted that, herein, relational terms be used merely to by an entity or operation with it is another
A entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this practical
Relationship or sequence.Moreover, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion,
So that process, method, article or equipment including a series of elements not only include those elements, but also including not having
It the other element that is expressly recited or further includes as elements inherent to such a process, method, article, or device.Do not having
There is the element in the case of more limiting, limited by sentence "including a ...", it is not excluded that in the mistake for including the element
Also there are other identical elements in journey, method, article or equipment.
Camera module provided by the utility model is described in detail above, specific case pair used herein
The principle and embodiment of the utility model is expounded, and the explanation of above example is only intended to help to understand that this practicality is new
The method and its core concept of type；Meanwhile for those of ordinary skill in the art, according to the thought of the utility model, having
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to this practicality
Novel limitation.
Claims (7)
1. a kind of camera module, including：Photosensitive element and the camera lens positioned at the photosurface side of the photosensitive element；It is special
Sign is,
The photosurface of the photosensitive element is curved, so that each road light arrival come in from camera lens convergence is described photosensitive
The optical path difference of element photosurface is identical.
2. camera module according to claim 1, which is characterized in that the photosurface of the photosensitive element is concavity.
3. camera module according to claim 2, which is characterized in that the thickness of the photosensitive element is uniform.
4. according to claim 1-3 any one of them camera modules, which is characterized in that the camera lens to the photosensitive element sense
The distance of smooth surface is gradually reduced from the center of the photosensitive element to edge.
5. camera module according to claim 4, which is characterized in that the photosensitive element is using center line to be axisymmetric
Graphic structure.
6. camera module according to claim 5, which is characterized in that the center of the camera lens is located at the photosensitive element
On center line.
7. camera module according to claim 6, which is characterized in that the visual field of the camera lens is bigger, the photosensitive element
Size it is bigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676133.6U CN207588986U (en) | 2017-12-04 | 2017-12-04 | A kind of camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721676133.6U CN207588986U (en) | 2017-12-04 | 2017-12-04 | A kind of camera module |
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| CN207588986U true CN207588986U (en) | 2018-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114916A (en) * | 2021-04-29 | 2021-07-13 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| WO2021239030A1 (en) * | 2020-05-28 | 2021-12-02 | 维沃移动通信有限公司 | Camera module and electronic device |
-
2017
- 2017-12-04 CN CN201721676133.6U patent/CN207588986U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021239030A1 (en) * | 2020-05-28 | 2021-12-02 | 维沃移动通信有限公司 | Camera module and electronic device |
| CN113114916A (en) * | 2021-04-29 | 2021-07-13 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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