CN107395940B

CN107395940B - Filter assembly, imaging device, electronic equipment and imaging method of electronic equipment

Info

Publication number: CN107395940B
Application number: CN201710762626.XA
Authority: CN
Inventors: 曾元清
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2020-03-06
Anticipated expiration: 2037-08-30
Also published as: CN107395940A

Abstract

The invention discloses a light filtering component, an imaging device, electronic equipment and an imaging method of the electronic equipment, wherein the light filtering component comprises: a base; the first optical filter is connected with the base; the second optical filter is spaced from and parallel to the first optical filter, and the distance between the second optical filter and the first optical filter is adjustable; and when the deformation piece deforms, the deformation piece drives the second optical filter to move so as to adjust the distance between the second optical filter and the first optical filter. Based on the structure of the light filtering component, the distance between the first light filter and the second light filter can be adjusted, incident light with preset wavelength can be flexibly controlled to pass through the light filtering component and irradiate the image sensor, and the image sensor can accurately receive the corresponding incident light.

Description

Filter assembly, imaging device, electronic equipment and imaging method of electronic equipment

Technical Field

The present invention relates to the field of electronic technologies, and in particular, to a filter assembly, an imaging device, an electronic device, and an imaging method for an electronic device.

Background

At present, a general light sensing element in a camera module can only judge the light intensity of a light sensing surface of an irradiation element, and cannot distinguish wavelength information of incident light. In order to enable the image sensor to output a color image, a filter array, such as a bayer array, is disposed above the photosensitive elements, so that pixels at different positions only receive light with corresponding wavelengths, and finally, color information of the image is determined by using an interpolation algorithm. However, when shooting is performed under a condition that the ambient light is relatively complicated, the color of an image restored by an algorithm may not be accurate. When infrared shooting is performed, an infrared filter needs to be added, so that the light sensing element only receives infrared light. Therefore, in the conventional camera module, the shooting mode of the module is very limited due to the limitation of the filter, and a single module is usually only suitable for a single imaging mode.

Disclosure of Invention

The object of the present invention is to solve at least to some extent one of the above mentioned technical problems.

In order to solve the above problem, a first objective of the present invention is to provide a filter assembly, which controls incident light with a preset wavelength to pass through the filter assembly and irradiate onto an image sensor by adjusting a distance between two filters, so that the image sensor receives the corresponding incident light.

A second object of the present invention is to provide an image forming apparatus.

A third object of the invention is to propose an electronic device.

A fourth object of the present invention is to provide an imaging method of an electronic device.

To achieve the above object, an embodiment of a first aspect of the present invention provides a light filtering assembly, including: a base; the first optical filter is connected with the base; the second optical filter is spaced from and parallel to the first optical filter, and the distance between the second optical filter and the first optical filter is adjustable; and when the deformation piece deforms, the deformation piece drives the second optical filter to move so as to adjust the distance between the second optical filter and the first optical filter.

The filtering component provided by the embodiment of the invention is provided with the base, the first optical filter, the second optical filter and the deformation piece, wherein the first optical filter is connected with the base, the second optical filter is spaced from and parallel to the first optical filter, and when the deformation piece deforms, the second optical filter is driven to move, so that the distance between the first optical filter and the second optical filter is adjustable. Therefore, the distance between the first optical filter and the second optical filter can be adjusted, incident light with preset wavelength can be flexibly controlled to pass through the optical filtering component and irradiate the image sensor, and the image sensor can accurately receive the corresponding incident light.

In addition, the filter assembly of the embodiment of the invention also has the following additional technical characteristics:

in an embodiment of the invention, the base includes a first wall surface and a second wall surface opposite to the first wall surface, the first filter is embedded in the first wall surface, the second wall surface is provided with a light-transmitting portion, and the second filter is located between the light-transmitting portion and the first filter.

In an embodiment of the invention, one end of the deformation element is connected to the second wall surface, and the other end is connected to the second optical filter.

In an embodiment of the invention, one end of the deformation element is connected with the first wall surface, and the other end is connected with the second filter.

In one embodiment of the present invention, the shape-changing elements are spaced apart, and the shape-changing elements are located on the same side of the second filter.

In an embodiment of the invention, the shape-changing elements are spaced apart, a part of the shape-changing elements is located on one side of the second optical filter, and another part of the shape-changing elements is located on the other side of the second optical filter.

In an embodiment of the invention, the base is provided with a guide rail, and the second optical filter is matched with the guide rail to move along the guide rail.

In one embodiment of the invention, the shape-changing element is a shape memory alloy SMA.

In order to achieve the above object, a second embodiment of the present invention provides an imaging device, including the filter assembly of the first embodiment; the imaging control module receives the control instruction, and adjusts the distance between the first optical filter and the second optical filter in the optical filtering component according to the control instruction so as to enable incident light with preset wavelength to pass through the optical filtering component and enable the image sensor to receive the incident light; the imaging control module controls the image sensor to perform exposure and outputs a final image.

The imaging device provided in the embodiment of the present invention is based on the filtering component provided in the first aspect, and adjusts a distance between a first optical filter and a second optical filter in the filtering component through a control instruction received by the imaging control module, so that incident light with a preset wavelength passes through the filtering component, irradiates to the image sensor, and outputs an image. Therefore, the distance between the first optical filter and the second optical filter can be adjusted, incident light with preset wavelength can be flexibly controlled to pass through the optical filtering component and irradiate the image sensor, so that the image sensor accurately receives the corresponding incident light, the color is not required to be reduced through an algorithm, and the obtained image color is more accurate. When infrared shooting is carried out, the distance between the two optical filters is adjusted through the deformation piece, only infrared light can pass through the optical filtering component, the image sensor receives the infrared light, the infrared optical filters do not need to be arranged independently, and cost is saved.

In addition, the imaging device of the embodiment of the invention also has the following additional technical characteristics:

in an embodiment of the invention, the imaging control module is configured to control the deformation of the deformation element in the optical filtering assembly according to the control instruction, and adjust a distance between the first optical filter and the second optical filter to a preset value, where the preset wavelength is equal to 2N times of the preset value, and N is a positive integer.

To achieve the above object, an embodiment of a third aspect of the present invention provides an electronic device including the imaging apparatus set forth in the embodiment of the second aspect.

The electronic device provided by the embodiment of the present invention is based on the filtering component provided by the first aspect, and adjusts a distance between a first optical filter and a second optical filter in the filtering component through a control instruction received by the imaging control module, so that incident light with a preset wavelength passes through the filtering component, irradiates to the image sensor, and outputs an image. Therefore, the distance between the first optical filter and the second optical filter can be adjusted, incident light with preset wavelength can be flexibly controlled to pass through the optical filtering component and irradiate the image sensor, so that the image sensor accurately receives the corresponding incident light, the color is not required to be reduced through an algorithm, and the obtained image color is more accurate. When infrared shooting is carried out, the distance between the two optical filters is adjusted through the deformation piece, only infrared light can pass through the optical filtering component, the image sensor receives the infrared light, the infrared optical filters do not need to be arranged independently, and cost is saved.

To achieve the above object, a fourth aspect of the present invention provides an imaging method for an electronic device, including: receiving a control instruction, and adjusting the distance between a first optical filter and a second optical filter in the optical filter assembly according to the control instruction so as to enable incident light with a preset wavelength to pass through the optical filter assembly and enable the image sensor to receive the incident light; and controlling the image sensor to perform exposure, and outputting a final image.

According to the imaging method of the electronic device provided by the embodiment of the invention, the distance between the first optical filter and the second optical filter in the optical filtering component is adjusted through the control instruction, so that incident light with a preset wavelength passes through the optical filtering component, irradiates to the image sensor, and outputs an image. Therefore, the distance between the first optical filter and the second optical filter can be adjusted, incident light with preset wavelength can be flexibly controlled to pass through the optical filtering component and irradiate the image sensor, so that the image sensor accurately receives the corresponding incident light, the color is not required to be reduced through an algorithm, and the obtained image color is more accurate. When infrared shooting is carried out, the distance between the two optical filters is adjusted through the deformation piece, only infrared light can pass through the optical filtering component, the image sensor receives the infrared light, the infrared optical filters do not need to be arranged independently, and cost is saved.

In addition, the imaging method of the electronic device of the embodiment of the invention also has the following additional technical characteristics:

in an embodiment of the present invention, adjusting a distance between a first filter and a second filter in a filter assembly according to a control command includes: and controlling the deformation of the deformation piece in the optical filtering component according to the control instruction, and adjusting the distance between the first optical filter and the second optical filter to a preset value, wherein the preset wavelength is equal to 2N times of the preset value, and N is a positive integer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a filter assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another optical filtering assembly according to an embodiment of the present invention;

FIG. 3 is a top view of a filter assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an imaging device according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating an imaging method of an electronic device according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A filter assembly, an imaging device, an electronic apparatus, and an imaging method of an electronic apparatus according to embodiments of the present invention are described below with reference to the accompanying drawings.

At present, a general light sensing element in a camera module can only judge the light intensity of a light sensing surface of an irradiation element, and cannot distinguish wavelength information of incident light. In order to enable the image sensor to output a color image, a filter array, such as a bayer array, is disposed above the photosensitive elements, so that pixels at different positions only receive light with corresponding wavelengths, and finally, color information of the image is determined by using an interpolation algorithm. However, when shooting is performed under a condition that the ambient light is relatively complicated, the image color information restored by the algorithm may not be accurate. When infrared shooting is carried out, an infrared filter is required to be additionally arranged, so that the light sensing element only receives infrared light. Therefore, in the conventional camera module, the shooting mode of the module is very limited due to the limitation of the filter, and a single module is usually only suitable for a single imaging mode.

Therefore, the embodiment of the invention provides a filter assembly. Fig. 1 is a schematic structural diagram of a filter assembly according to an embodiment of the present invention.

As shown in fig. 1, the filter assembly 100 includes: the optical filter includes a base 110, a first optical filter 120, a second optical filter 130, and a deformation element 140.

The first filter 120 is connected to the base 110. The second filter 130 is spaced apart from and parallel to the first filter 120, and a distance between the second filter 130 and the first filter 120 is adjustable.

One end of the deformation element 140 is connected to the base 110, and the other end is connected to the second filter 130. When the deformation element 140 deforms, the deformation element 140 drives the second filter 130 to move, so as to adjust the distance between the second filter 130 and the first filter 120.

The Shape-changing element 140 may be SMA (Shape Memory Alloys), and has a function of stretching and contracting with temperature change. In the embodiment of the present invention, the deformation member 140 may vary with temperature such that, when the temperature increases, the deformation member 140 contracts; when the temperature is lowered, the deformation member 140 is elongated. Alternatively, when the temperature is increased, the deformation member 140 is elongated; the deformation member 140 shrinks when the temperature decreases, which is not limited by the present invention.

Taking the temperature rise and the deformation element 140 extending as an example, when the current flowing through the deformation element 140 increases, the temperature of the deformation element 140 increases with the increase of the current, and the deformation element 140 extends to drive the second optical filter 130 to move toward the first optical filter 120, so that the distance between the first optical filter 120 and the second optical filter 130 is reduced.

In a possible implementation form of the embodiment of the present invention, a guide rail may be disposed on the base 110, and when the distance between the second optical filter 130 and the first optical filter 120 is adjusted, the second optical filter 130 is matched with the guide rail and moves along the guide rail. Through the guide slide rail, the movement of the second optical filter can be controlled more accurately, so that the distance between the first optical filter and the second optical filter can be adjusted accurately.

Specifically, the base 110 includes a first wall surface and a second wall surface opposite to the first wall surface. The first filter 120 is embedded in the first wall.

In order to irradiate the incident light to the image sensor through the filter assembly, the second wall surface is provided with a light-transmitting portion, as shown in fig. 1. The second filter 130 is located between the light-transmitting portion and the first filter 120, and when the incident light irradiates the filter assembly 100, the incident light firstly passes through the second filter 130, then passes through the first filter 120, and finally irradiates the image sensor.

One end of the deformation element 140 is connected to the second wall surface, and the other end is connected to the second filter 130. That is, the deformation element 140 is located on the upper side of the second filter 130, i.e., the deformation element 140 is located on the same side of the second filter 130.

Alternatively, the shape-changing element 140 may be located at the lower side of the second filter 130. As shown in fig. 2, one end of the deformation element 140 is connected to the first wall, and the other end is connected to the second filter 130.

In one possible implementation of the embodiment of the present invention, as shown in fig. 3, the shape-changing element 140 may be spaced apart from each other.

In order to keep the second filter 130 parallel to the first filter 120, as shown in fig. 3, some of the deformation elements 140 are located on one side of the second filter 130, and another part is located on the other side of the second filter 130. That is, the deformation element 140 is divided into two parts, which are respectively located at the left and right sides of the second filter 130.

For example, the filter assembly 100 has two deformation elements 140 respectively located at two sides of the second filter 130. That is, there is one deformation element 140 on each side of the second filter 130.

In order to achieve the above object, an image forming apparatus is also provided in an embodiment of the present invention.

As shown in fig. 4, the image forming apparatus includes: a filter assembly 100 and an imaging control module 200.

The imaging control module 200 receives a control instruction, and adjusts a distance between a first optical filter and a second optical filter in the optical filter assembly according to the control instruction, so that incident light with a preset wavelength passes through the optical filter assembly, and the image sensor receives the incident light; the imaging control module 200 controls the image sensor to perform exposure and outputs a final image.

It should be noted that, in the embodiment of the present invention, the incident light irradiation filter component refers to an incident light normal incidence filter component.

In practical applications, incident light obliquely strikes the filter assembly, so that the image sensor receives light, and the shooting quality is affected. In order to avoid this, before the incident light irradiates the filter component, the incident angle of the incident light can be changed by some refraction device, so that the incident light is vertically incident or approximately vertically incident to the filter component, and the interference of the oblique light to the color of the light received by the image sensor is avoided.

The imaging control module 200 is configured to control the deformation of the deformation element in the filter assembly according to the control instruction, and adjust the distance between the first filter and the second filter to a preset value, where the preset wavelength is equal to 2N times of the preset value, and N is a positive integer.

As shown in fig. 1, when light is vertically incident to the filter assembly, after the incident light passes through the second filter, part of the light is reflected to the second filter by the first filter, and a stable optical path difference exists between the first light and the second light, i.e. a distance Δ d between the first filter and the second filter in fig. 1.

According to the theory of light interference, when the predetermined wavelength is equal to 2N times of the optical path difference, the incident light with the predetermined wavelength can pass through the filter assembly without loss, as shown in formula one.

The formula I is as follows: λ ═ N × 2 × Δ d

Wherein λ is a preset wavelength, and Δ d is a distance between the first filter and the second filter.

In practical application, the current passing through the SMA can be controlled to deform the SMA and drive the second optical filter to move so as to adjust the distance between the first optical filter and the second optical filter. By adjusting the distance between the first filter and the second filter, the optical path difference can be correspondingly changed, so that the incident light passing through the filter assembly can be controlled, and the variable filtering effect can be achieved.

For example, when the infrared shooting mode is selected at night and an object is shot, the imaging control module receives a control instruction of infrared shooting. The imaging control module controls the SMA in the optical filtering assembly to deform by controlling the magnitude of the current according to the control instruction so as to drive the second optical filter to move, so that the distance between the first optical filter and the second optical filter is adjusted to a preset value. And 2N times of the distance between the first optical filter and the second optical filter after adjustment is equal to the wavelength of the infrared light, so that the infrared light passes through the optical filtering component.

Then, the imaging control module controls the image sensor to perform exposure. During the exposure process of the image sensor, only the infrared light passes through the filter assembly and irradiates the image sensor. And finally, outputting the image in the infrared shooting mode according to each pixel value.

In order to achieve the above object, an embodiment of the present invention further provides an electronic device, which includes the imaging apparatus according to the above embodiment.

In order to achieve the above object, an embodiment of the invention further provides an imaging method of an electronic device.

As shown in fig. 5, the imaging method of the electronic device includes:

s501, receiving a control instruction, and adjusting the distance between a first optical filter and a second optical filter in the optical filter assembly according to the control instruction, so that incident light with a preset wavelength passes through the optical filter assembly, and the image sensor receives the incident light.

When the photographing mode is selected, the imaging control module can receive a corresponding control instruction. And after receiving the control instruction, adjusting the distance between the first optical filter and the second optical filter in the optical filter assembly according to the control instruction.

In an embodiment of the invention, the deformation of the deformation element can be controlled to drive the second optical filter to move, so as to adjust the distance between the first optical filter and the second optical filter. Specifically, deformation of a deformation element in the filter assembly is controlled according to a control instruction, so that 2N times of the distance between the first filter and the second filter is equal to a preset wavelength, and incident light with the preset wavelength passes through the filter assembly and irradiates the image sensor. Wherein N is a positive integer.

And S502, controlling the image sensor to perform exposure and outputting a final image.

And after the distance between the first optical filter and the second optical filter is adjusted to enable incident light with preset wavelength to pass through the optical filtering component, controlling the image sensor to be exposed. During the exposure process of the image sensor, incident light with preset wavelength passes through the filtering component and irradiates the image sensor. Finally, the image in the corresponding photographing mode is output.

For example, in a daytime environment, a user wants to take a color picture with a cell phone. After the user selects the mode, the imaging control module receives a control instruction of the corresponding mode.

The color image is formed by combining pixel information of red, green and blue. Therefore, the image sensor can receive the light of three colors in sequence and combine the output three pixel information to obtain a color image.

Specifically, after receiving the control instruction, the deformation of the deformation element is controlled to adjust the distance between the first optical filter and the second optical filter to a preset value, and 2N times of the preset value is equal to the wavelength of red light, as shown in formula one, so that the red light passes through the filter assembly. And after the image sensor is exposed according to the control instruction, the image sensor receives red light and records corresponding pixel information.

And then, controlling the deformation piece to continuously deform, so that the distance between the first optical filter and the second optical filter is adjusted to a preset value, and 2N times of the preset value is equal to the wavelength of green light, so that the image sensor receives the green light. And after receiving the green light, the image sensor records corresponding pixel information.

And then, controlling the deformation piece to continuously deform, so that the distance between the first optical filter and the second optical filter is adjusted to a preset value, and 2N times of the preset value is equal to the wavelength of the blue light, so that the image sensor receives the blue light and records corresponding pixel information. And finally, combining the three pixel information and outputting a final image.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It should be noted that in the description of the present specification, reference to the description of the term "one embodiment", "some embodiments", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A light filtering assembly, comprising:

a base;

the first optical filter is connected with the base, the base comprises a first wall surface and a second wall surface opposite to the first wall surface, and the first optical filter is embedded in the first wall surface;

the second optical filter is spaced from and parallel to the first optical filter, and the distance between the second optical filter and the first optical filter is adjustable;

the deformation piece, the one end of deformation piece with the pedestal connection, the other end with the second light filter is connected, works as when deformation piece takes place deformation, deformation piece drive the second light filter motion, in order to adjust the second light filter with distance between the first light filter is to predetermineeing numerical value, so that the incident light of predetermineeing the wavelength passes through filtering subassembly to make image sensor receive the incident light, wherein, predetermine the wavelength and equal to predetermine 2N times of numerical value, N is the positive integer.

2. A filter assembly according to claim 1, wherein the second wall is provided with a light-transmitting portion, and the second filter is located between the light-transmitting portion and the first filter.

3. A filter assembly according to claim 2, wherein the deformable member is connected at one end to the second wall and at the other end to the second filter.

4. A filter assembly according to claim 2, wherein the deformable member is connected at one end to the first wall and at the other end to the second filter.

5. A filter assembly as claimed in claim 1, wherein the shape-changing members are spaced apart, and a plurality of the shape-changing members are located on the same side of the second filter.

6. The filter assembly of claim 1, wherein the shape-changing members are spaced apart, and a portion of the shape-changing members is located on one side of the second filter, and another portion of the shape-changing members is located on the other side of the second filter.

7. The filter assembly of claim 1, wherein the base is provided with a guide rail, and the second filter cooperates with the guide rail to move along the guide rail.

8. A filter assembly according to claim 1, wherein the shape-changing element is a shape memory alloy SMA.

9. An image forming apparatus, comprising:

a filter assembly according to any one of claims 1 to 8; and

the imaging control module receives a control instruction, adjusts the distance between a first optical filter and a second optical filter in the optical filtering component to a preset value according to the control instruction, so that incident light with a preset wavelength passes through the optical filtering component, and an image sensor receives the incident light, wherein the preset wavelength is 2N times of the preset value, and N is a positive integer;

the imaging control module controls the image sensor to perform exposure and outputs a final image.

10. The imaging apparatus of claim 9, the imaging control module to:

and controlling a deformation piece in the filtering component to deform according to the control instruction, and adjusting the distance between the first optical filter and the second optical filter to a preset value.

11. An electronic device characterized by comprising the imaging apparatus according to claim 9 or 10.

12. An imaging method of an electronic device, the method comprising:

receiving a control instruction, and adjusting a distance between a first optical filter and a second optical filter in a filter assembly to a preset value according to the control instruction, so that incident light with a preset wavelength passes through the filter assembly, and an image sensor receives the incident light, wherein the preset wavelength is equal to 2N times of the preset value, N is a positive integer, and the filter assembly is the filter assembly according to any one of claims 1 to 8;

and controlling the image sensor to perform exposure, and outputting a final image.