CN110798605A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN110798605A CN110798605A CN201911219334.7A CN201911219334A CN110798605A CN 110798605 A CN110798605 A CN 110798605A CN 201911219334 A CN201911219334 A CN 201911219334A CN 110798605 A CN110798605 A CN 110798605A
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- perot interferometer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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Abstract
The invention discloses a camera module which comprises a lens (300) and a photosensitive chip (400), wherein the photosensitive chip (400) is arranged opposite to the lens (300), the photosensitive chip (400) comprises a first photosensitive area (410) and a second photosensitive area (420), and the second photosensitive area (420) is provided with a Fabry-Perot interferometer (500). The problem that the image shot by the current camera module has poor presenting capability can be solved by the scheme. The invention discloses an electronic device.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a camera module and electronic equipment.
Background
As user demands increase, the performance of electronic devices continues to optimize. As a basic function device of the electronic equipment, the camera module can realize the shooting function of the electronic equipment, and the shooting performance of the camera module is greatly developed. At present, the function of a camera module of electronic equipment is very powerful, the photographing effect and performance are hardly greatly improved, and the image quality improvement and function integration of images reach a bottleneck.
The sensitization mode of the sensitization chip of present camera module is similar with human eye, and the CFA that covers on the pixel of sensitization chip can simulate three kinds of cone cells of human eye, samples spectral reflection region, forms the image through processing after the digital signal finally. The imaging of the existing photosensitive chip carries out three primary colors sampling on an incident spectrum curve to form three discrete data, and the three discrete data are finally mixed into the color and the brightness of an image. Therefore, the image shot by the current camera module can only show color and brightness, and the details of the spectrum curve cannot be seen, so that the shot image has poor presenting capability and cannot be identified with higher requirements.
Disclosure of Invention
The invention discloses a camera module, which aims to solve the problem that the image shot by the existing camera module has poor presentation capability.
In order to solve the problems, the invention adopts the following technical scheme:
in a first aspect, the present invention discloses a camera module, including:
a lens;
the photosensitive chip is arranged opposite to the lens and comprises a first photosensitive area and a second photosensitive area, and the second photosensitive area is provided with a Fabry-Perot interferometer.
In a second aspect, the present invention discloses an electronic device, which includes the camera module described above.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the camera module disclosed by the embodiment of the invention improves the structure of the existing camera module, so that the photosensitive chip of the camera module comprises a first photosensitive area and a second photosensitive area, and the second photosensitive area is provided with the Fabry-Perot interferometer, thereby realizing a photosensitive shooting mode of the second photosensitive area different from the first photosensitive area, allowing light rays with specific wavelength to pass under the action of the Fabry-Perot interferometer, and having the capability of multispectral shooting. The camera module with the structure can perfectly be compatible with the multispectral shooting technology while ensuring that the conventional imaging is not interfered, so that the camera module can carry out multispectral sampling, and finally the image presenting capability can be better improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a camera module disclosed in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a photosensitive chip according to an embodiment of the disclosure;
fig. 3 is a schematic view of a partial structure of a camera module disclosed in the embodiment of the present invention;
fig. 4 is another schematic structural diagram of a photosensitive chip disclosed in the embodiment of the present invention.
Description of reference numerals:
100-base, 200-support, 300-lens, 400-photosensitive chip, 410-first photosensitive area, 420-second photosensitive area, 500-Fabry-Perot interferometer, 600-optical filter, 700-zoom motor and 800-protective membrane.
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 with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present invention discloses a camera module, which can be applied to an electronic device, so as to be a component of the electronic device, or to operate as a separate device. The disclosed camera module includes a lens 300, a photosensitive chip 400, and a fabry-perot interferometer 500.
In the embodiment of the invention, the photosensitive chip 400 includes a first photosensitive area 410 and a second photosensitive area 420, and the first photosensitive area 410 and the second photosensitive area 420 are different photosensitive areas of the photosensitive chip 400. Alternatively, the second photosensitive region 420 may be located outside the first photosensitive region 410, thereby minimizing the influence on the first photosensitive region 410.
The second photosensitive region 420 is provided with a fabry-perot interferometer 500. The fabry-perot interferometer 500 includes a first lens and a second lens, the first lens and the second lens being spaced apart. In a specific design process, the cavity length of the fabry-perot interferometer 500 can be changed by adjusting the distance between the first lens and the second lens, so that the resonance frequency of the fabry-perot interferometer 500 can be adjusted, and the fabry-perot interferometer 500 can pass through light rays of corresponding wave bands, that is, the fabry-perot interferometer 500 plays a role in selecting frequency or wavelength for input non-monochromatic light. By changing the cavity length of the fabry-perot interferometer 500, monochromatic light with different wavelengths can be screened out, and then the monochromatic light is induced by the second photosensitive area 420 after passing through the fabry-perot interferometer 500, so that the effect of collecting spectrum curve information is achieved. The operation and structure of the fabry-perot interferometer 500 are well known in the art and will not be described herein.
In a specific working process, a part of light passing through the lens 300 is projected onto the first photosensitive area 410, the first photosensitive area 410 senses the light and then generates an image in one mode (a conventional shooting mode), the other part of light passing through the lens 300 is projected onto the fabry-perot interferometer 500, and the light is projected onto the second photosensitive area 420 under the action of the fabry-perot interferometer 500, so that the second photosensitive area 420 senses the light and then generates an image in another mode (a multispectral shooting mode), and multispectral shooting can be achieved in the mode.
The camera module disclosed by the embodiment of the invention improves the structure of the existing camera module, so that the photosensitive chip 400 of the camera module comprises a first photosensitive area 410 and a second photosensitive area 420, the second photosensitive area 420 is provided with the Fabry-Perot interferometer 500, the second photosensitive area 420 can realize a photosensitive shooting mode different from the first photosensitive area 410, and light rays with specific wavelengths can be allowed to pass through under the action of the Fabry-Perot interferometer 500, thereby realizing multispectral shooting. The camera module with the structure can perfectly be compatible with the multispectral shooting technology while ensuring that the conventional imaging is not interfered, so that the camera module can carry out multispectral sampling, and finally the image presenting capability can be better improved.
The camera module disclosed by the embodiment of the invention is equivalent to function expansion of the camera module, and is beneficial to improving the shooting experience and satisfaction of users.
In an embodiment of the present invention, the second photosensitive area 420 may be an edge area located at an edge of the photosensitive chip 400. In this case, it is easier to arrange the fabry-perot interferometer 500 on the second photosensitive region 420, and the influence of the fabry-perot interferometer 500 on the first photosensitive region 410 can also be reduced.
Specifically, the second photosensitive regions 420 may be disposed in various manners, for example, the second photosensitive regions 420 may be located on one side of the first photosensitive regions 410 or on both sides of the first photosensitive regions 410. In a preferred embodiment, the second photosensitive region 420 may be disposed around the first photosensitive region 410, so that more locations for disposing the fabry-perot interferometer 500 can be formed, and it is of course advantageous to dispose more fabry-perot interferometers 500. On the premise, in a preferable scheme, the fabry-perot interferometer 500 may be disposed around the first photosensitive region 410, so as to form a larger-area collecting region, which is beneficial to improving the multispectral sampling capability of the camera module.
Alternatively, the first photosensitive region 410 may be a square region, and the second photosensitive region 420 may be a square region. In this case, the first photosensitive region 410 and the second photosensitive region 420 are regular shapes, so that it is easier to arrange regularly arranged photosensitive pixels. Of course, the first photosensitive region 410 may be a circular region, and the second photosensitive region 420 may be a circular ring-shaped region, and the specific shapes of the first photosensitive region 410 and the second photosensitive region 420 are not limited in the embodiments of the present invention.
In an embodiment of the present invention, the number of the fabry-perot interferometers 500 is at least one, and in order to improve the multispectral sampling capability, in a preferable scheme, the second photosensitive region 420 may include a first photosensitive sub-region and a second photosensitive sub-region, and the fabry-perot interferometer 500 may include a first fabry-perot interferometer and a second fabry-perot interferometer. The first Fabry-Perot interferometer is arranged in the first photosensitive subarea, and the second Fabry-Perot interferometer is arranged in the second photosensitive subarea. The cavity length of first Fabry-Perot interferometer is unequal with the cavity length of second Fabry-Perot interferometer to can make both can reach the spectrum sampling ability of more wave bands through the light of different wave bands, this spectrum sampling performance that can further make a video recording the module undoubtedly.
Of course, the fabry-perot interferometer 500 may include not only the first and second fabry-perot interferometers, but also a third and fourth fabry-perot interferometers, etc., and the number of the fabry-perot interferometers 500 is not limited in the embodiments of the present invention.
On the premise that the number of the fabry-perot interferometers 500 is multiple, the first lens and the second lens of at least one fabry-perot interferometer 500 can be fixed lenses, and in this case, the cavity length of the fabry-perot interferometer 500 is a fixed value, so that light with a set wavelength passes through the cavity length. In the first lens and the second lens of at least one fabry-perot interferometer 500, the first lens may be a movable lens, and the second lens may be a fixed lens, and the first lens is adjusted to move, so that the cavity length of the fabry-perot interferometer 500 can be adjusted, and the purpose of passing light with more wavelengths is achieved.
On the premise that the number of the fabry-perot interferometers 500 is plural, the fabry-perot interferometers 500 may be arranged at intervals or may not be arranged at intervals. Under the prerequisite that the quantity of Fabry-Perot interferometer 500 is a plurality of, the chamber length of each Fabry-Perot interferometer 500 can be inequality, that is to say the distance between the first lens of each Fabry-Perot interferometer 500 and the second lens is inequality to can make the resonant frequency of each Fabry-Perot interferometer 500 unequal, thereby make the wavelength of the light that each Fabry-Perot interferometer 500 passes through inequality, thereby realize the ability of the monochromatic light of different wavelength of gathering respectively.
In the embodiment of the present invention, the fabry-perot interferometer 500 is a known device, and as described above, the fabry-perot interferometer 500 includes the first lens and the second lens, which are spaced apart from each other, and the distance between the first lens and the second lens is adjusted, so as to allow light rays with different wavelengths to pass through. Specifically, the first lens and the second lens may both be fixed lenses, i.e., determined by the cavity length of the fabry-perot interferometer 500, in which case the fabry-perot interferometer 500 can only pass light of the corresponding wavelength.
Certainly, in order to realize the adjustment in the use and select the monochromatic light that passes through in a flexible way, in the preferred scheme, first lens movably sets up, and is concrete, and first lens can movably set up on the inner space of the module of making a video recording or component, and under this kind of circumstances, the user can adjust the position of first lens at any time at the in-process that uses, and then changes the distance between first lens and the second lens, finally can make the light of different wavelength see through fabry-perot interferometer 500. In the case where the first lens is movably provided, the first lens may be a lens on the light entrance side of the fabry-perot interferometer 500.
In order to facilitate the movement and control, in a preferred embodiment, the camera module disclosed in the embodiment of the present invention may further include a driving module, and the driving module is connected to the first lens. The driving module drives the first lens to move towards the second lens or move away from the second lens. Specifically, the driving module may be a hydraulic telescopic member, a pneumatic telescopic member, a linear motor, or the like. Specifically, the driving module may be mounted on an inner space or a constituent member (e.g., the base 100 or the stand 200 of the camera module) of the camera module, so as to drive the movement of the first lens.
In order to improve the shooting performance, in a preferable scheme, the camera module disclosed in the embodiment of the invention may further include an optical filter 600, and the optical filter 600 covers the first photosensitive area 410 and is configured to avoid the second photosensitive area 420. In this case, among the light rays incident through the lens 300, a part of the light rays may pass through the optical filter 600 before being projected to the first photosensitive area 410, and the optical filter 600 may perform a filtering function, so as to filter out light rays not required by the first photosensitive area 410, thereby preventing the first photosensitive area 410 from forming a false color or a ripple in a photographing process, and further improving effective resolution and color reducibility of an image.
In the embodiment of the present invention, the filter 600 may be of various types, for example, the filter 600 may be an infrared filter, and the infrared filter easily meets the filtering requirement of most users during the shooting process. Of course, the filter 600 may be other types of filters, and the embodiment of the invention does not limit the specific type of the filter 600.
In order to facilitate the arrangement of the optical filter 600, in a preferred embodiment, the optical filter 600 may be attached to the surface of the first photosensitive region 410. Specifically, the optical filter 600 may be attached to the surface of the first photosensitive region 410 by an optical adhesive layer. The adoption of the attaching mode can not only improve the installation stability of the optical filter 600, but also reduce the space occupied by the assembly of the optical filter 600 and the first photosensitive area 410 because the optical filter 600 is attached to the surface of the first photosensitive area, thereby being beneficial to integrating more functional devices in the internal space of the camera module.
In a general case, the camera module disclosed in the embodiment of the present invention may further include a base 100 and a bracket 200, wherein the bracket 200 is disposed on the base 100. The light sensing chip 400 is disposed on the base 100, and the light sensing chip 400 is located in a region surrounded by the bracket 200, so that interference of stray light in other directions can be prevented, and the light sensing chip 400 can only sense light passing through the lens 300. The lens 300 is mounted on the bracket 200, so that the lens 300 is mounted, and in particular, the bracket 200 may be fixed on the base 100 by means of adhesion. The arrangement of the base 100 and the bracket 200 can make the camera module meet the lighting requirement more easily.
In the embodiment of the present invention, the base 100 not only provides a mounting position for the bracket 200, but also the base 100 generally includes a circuit board, and the light sensing chip 400 can be electrically connected to the circuit board, so as to be powered by the circuit board, in this case, the base 100 can also play a role of supplying power to the light sensing chip 400. Specifically, the base 100 can be a substrate, so that a flat mounting surface can be provided for other components of the camera module, and the size of the whole camera module can be reduced.
In a preferable embodiment, the camera module disclosed in the embodiment of the present invention may further include a zoom motor 700, the zoom motor 700 is disposed on the bracket 200, the zoom motor 700 is connected to the lens 300, and the zoom motor 700 may drive the lens 300 to move, so as to implement a zoom function. Specifically, the zoom motor 700 may be a voice coil motor, and of course, the zoom motor 700 may be of other types, and the embodiment of the invention does not limit the specific type of the zoom motor 700.
In order to alleviate the problem that the lens 300 is easily damaged, the camera module disclosed in the embodiment of the present invention may further include a protective film 800, and the protective film 800 is disposed on the zoom motor 700 and covers the lens 300. The protective film 800 can undoubtedly play a good role in protecting the lens 300. Specifically, the protective film 800 may be disposed on the zoom motor 700 in a vacuum attachment or bonding manner, thereby enabling more stable mounting.
In order to further improve the shooting effect, in a preferable scheme, the photosensitive chip 400 may include a color filter array layer, and the color filter array layer covers the first photosensitive area 410 and avoids the second photosensitive area 420. In this case, the second photosensitive region 420 covers the color filter array layer, so that the light passing rate can be increased, and accuracy of multispectral sampling is facilitated.
In an embodiment of the present invention, the number of pixels of the first photosensitive area 410 and the number of pixels of the second photosensitive area 420 may be equal, thereby achieving the same accuracy of image acquisition. Of course, the number of pixels of the first photosensitive area 410 may not be equal to the number of pixels of the second photosensitive area 420, so as to achieve the differentiated photosensitive precision. The pixel size of the first photosensitive region 410 and the pixel size of the second photosensitive region 420 may be equal as shown in fig. 4. Of course, the pixel size of the first photosensitive region 410 and the pixel size of the second photosensitive region 420 may not be equal. Under the condition that the parameters are not equal, more diversified image acquisition capacity of the camera module can be realized, so that more shooting requirements of users can be met more easily.
In a preferable scheme, the pixel size of the second photosensitive region 420 may be larger than the pixel size of the first photosensitive region 410, as shown in fig. 2, so that the sensitivity of the second photosensitive region 420 to dark light is higher, which is beneficial to improving the use range of a full spectrum, and further improving the multispectral collection capability.
Based on the camera module disclosed by the embodiment of the invention, the embodiment of the invention discloses electronic equipment, and the disclosed electronic equipment comprises the camera module disclosed by the embodiment.
The electronic device disclosed by the embodiment of the invention can be a mobile phone, a tablet computer, an electronic book reader, a vehicle-mounted navigator, an intelligent watch, a game machine and the like, and the specific type of the electronic device is not limited by the embodiment of the invention.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. The utility model provides a module of making a video recording which characterized in that includes:
a lens (300);
sensitization chip (400), sensitization chip (400) with camera lens (300) set up relatively, sensitization chip (400) include first photosensitive region (410) and second photosensitive region (420), second photosensitive region (420) are provided with Fabry-Perot interferometer (500).
2. The camera module according to claim 1, wherein the second photosensitive area (420) is an edge area located at an edge of the photosensitive chip (400).
3. The camera module of claim 2, wherein the second photosensitive region (420) is disposed around the first photosensitive region (410), and the fabry-perot interferometer (500) is disposed around the first photosensitive region (410).
4. The camera module of claim 3, wherein the first photosensitive area (410) is a square area and the second photosensitive area (420) is a square area.
5. The camera module according to claim 1, wherein the second photosensitive region (420) comprises a first photosensitive sub-region and a second photosensitive sub-region, the fabry-perot interferometer (500) comprises a first fabry-perot interferometer and a second fabry-perot interferometer, the first fabry-perot interferometer is disposed in the first photosensitive sub-region, the second fabry-perot interferometer is disposed in the second photosensitive sub-region, and a cavity length of the first fabry-perot interferometer is not equal to a cavity length of the second fabry-perot interferometer.
6. The camera module of claim 1, wherein the fabry-perot interferometer (500) comprises a first lens and a second lens, the first lens being spaced apart from the second lens, the camera module further comprising a driving module, the driving module being coupled to the first lens, the driving module being configured to drive the first lens towards or away from the second lens.
7. The camera module of claim 1, further comprising a filter (600), wherein the filter (600) covers the first photosensitive region (410) and is clear of the second photosensitive region (420).
8. The camera module according to claim 1, further comprising a base (100) and a support (200), wherein the support (200) is disposed on the base (100), the photosensitive chip (400) is disposed on the base (100), and the photosensitive chip (400) is located in an area surrounded by the support (200), and the lens (300) is mounted on the support (200).
9. The camera module according to claim 8, further comprising a zoom motor (700), wherein the zoom motor (700) is disposed on the bracket (200), the zoom motor (700) is connected to the lens (300), and the zoom motor (700) can drive the lens (300) to move.
10. The camera module according to claim 9, further comprising a protective membrane (800), wherein the protective membrane (800) is disposed on the zoom motor (700) and covers the lens (300).
11. The camera module according to claim 1, wherein the photo-sensing chip (400) comprises a color filter array layer covering the first photo-sensing area (410) and avoiding the second photo-sensing area (420).
12. The camera module of claim 1, wherein the second photosensitive area (420) has a pixel size larger than a pixel size of the first photosensitive area (410).
13. An electronic apparatus, characterized by comprising the camera module according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219334.7A CN110798605B (en) | 2019-11-29 | 2019-11-29 | Camera module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219334.7A CN110798605B (en) | 2019-11-29 | 2019-11-29 | Camera module and electronic equipment |
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| CN110798605A true CN110798605A (en) | 2020-02-14 |
| CN110798605B CN110798605B (en) | 2021-05-28 |
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| CN201911219334.7A Active CN110798605B (en) | 2019-11-29 | 2019-11-29 | Camera module and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113271403A (en) * | 2021-05-24 | 2021-08-17 | 维沃移动通信（杭州）有限公司 | Photosensitive chip, camera module and electronic equipment |
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