CN112822367B - Electronic equipment and camera module thereof - Google Patents
Electronic equipment and camera module thereof Download PDFInfo
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- CN112822367B CN112822367B CN202011642064.3A CN202011642064A CN112822367B CN 112822367 B CN112822367 B CN 112822367B CN 202011642064 A CN202011642064 A CN 202011642064A CN 112822367 B CN112822367 B CN 112822367B
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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
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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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
Abstract
The application discloses an electronic device and a camera module thereof, which belong to the field of communication equipment, wherein the camera module comprises a lens, a transmission reflection piece, a driving piece, a first photosensitive chip and a second photosensitive chip, each photosensitive chip is a Bayer array sensor, and the first photosensitive chip and the second photosensitive chip are matched with the lens through the transmission reflection piece; the light rays incident from the lens can form a first image in a first sub-pixel area of the first photosensitive chip, can form a second image in a second sub-pixel area of the second photosensitive chip, and can also form a third image in a third sub-pixel area of the first photosensitive chip, the contents of the first image, the second image and the third image are the same, and the equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area and the third sub-pixel area in the same pixel area are any three sub-pixel areas in the pixel area. The camera module that above-mentioned technical scheme provided can promote the formation of image definition.
Description
Technical Field
The application belongs to the technical field of communication equipment, and particularly relates to electronic equipment and a camera module thereof.
Background
Along with the progress of science and technology, electronic equipment such as cell-phone occupies important effect in people's production life, and electronic equipment all has set the module of making a video recording usually to the user shoots the work. With the increasing market competition, the electronic device usually has at least one outstanding performance to form a difference with other electronic devices, so as to improve the market competition of the electronic device. For example, electronic devices have a higher refresh rate, which results in higher display performance; or, the electronic equipment is provided with double loudspeakers, so that the audio-visual effect is good; for another example, the shooting performance of the electronic device is strong. The performance of the camera module can be improved through various paths aiming at the shooting performance of the electronic equipment.
Taking the imaging definition as an example, when the size of the photosensitive chip is fixed, increasing the number of pixels will cause the photosensitive capability of the camera module to decrease, and also has adverse effect on the imaging result, so the definition is usually improved by adopting a single-frame interpolation and multi-frame synthesis mode in the industry. However, in the process of forming an image by adopting a single-frame interpolation mode, because real photosensitive pixels are not increased, the improvement effect of definition is limited, and interpolation errors are easy to occur in some scenes; in the process of forming an image by adopting a multi-frame synthesis mode, the difficulty of controlling pixel displacement is huge, and the synthesized image effect is poor.
Disclosure of Invention
The application discloses electronic equipment and module of making a video recording thereof can promote the imaging definition.
In order to solve the above problem, the embodiments of the present application are implemented as follows:
in a first aspect, the embodiment of the application discloses a camera module, which comprises a lens, a transmission reflection piece, a driving piece and a plurality of photosensitive chips, wherein each photosensitive chip is a bayer array sensor, each photosensitive chip comprises a plurality of pixel areas arranged in rows and columns, each pixel area comprises four sub-pixel areas, the plurality of photosensitive chips comprise a first photosensitive chip and a second photosensitive chip, and the first photosensitive chip and the second photosensitive chip are matched with the lens through the transmission reflection piece;
the first photosensitive chip and the second photosensitive chip are both connected with the driving piece, the driving piece can drive the first photosensitive chip to move between a first position and a third position, and the driving piece can drive the second photosensitive chip to switch between a second position and a fourth position;
under the condition that the first photosensitive chip is located at the first position, light rays incident from the lens form a first image in a first sub-pixel area of the first photosensitive chip;
under the condition that the first photosensitive chip is located at a third position, light rays incident from the lens form a third image in a third sub-pixel area of the first photosensitive chip;
under the condition that the second photosensitive chip is located at the second position, light rays incident from the lens form a second image in a second sub-pixel area of the second photosensitive chip;
under the condition that the second photosensitive chip is located at a fourth position, the light rays incident from the lens form the first image in the first sub-pixel area of the second photosensitive chip;
the contents of the first image, the second image and the third image are the same, and the equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area and the third sub-pixel area in the same pixel area are any three sub-pixel areas in the pixel area.
In a second aspect, an embodiment of the present application discloses an electronic device, which includes the above camera module.
The embodiment of the application provides a camera module, first sensitization chip and second sensitization chip pass through reflector and lens cooperation, when sensitization chip and lens cooperation, can form first image in the first sub-pixel district of first sensitization chip, can form the second image the same with the content of first image in the second sub-pixel district of second sensitization chip, in addition, through removing first sensitization chip, can also make the third sub-pixel district of first sensitization chip form the third image the same with first image content. In addition, equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area and the third pixel area in the same pixel area are any three of the pixel areas, so that in the two imaging processes, the two photosensitive chips can generate three different filtering processing results of the same incident light, and further, the first image, the second image and the third image are synthesized by means of a preset algorithm, the real photosensitive pixels of each filtering channel on the formed synthesized image can be increased, the resolution of the image is further improved, the picture presenting effect is better, and the final image quality level and the user experience are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a camera module disclosed in an embodiment of the present application;
fig. 2 is an assembly view of a first photosensitive chip and a limiting member in the camera module disclosed in the embodiment of the present application;
fig. 3 is a schematic view of a first limiting member in the camera module disclosed in the embodiment of the present application;
fig. 4 is a schematic view of a second limiting member in the camera module disclosed in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a pixel region of a sensing chip in the camera module disclosed in the embodiment of the present application;
fig. 6 is a relative position comparison diagram of a pixel area where a first sub-pixel area is located and a pixel area where a second sub-pixel area is located in the camera module disclosed in the embodiment of the present application;
fig. 7 is another relative position comparison diagram of a pixel area where a first sub-pixel area is located and a pixel area where a second sub-pixel area is located in the camera module disclosed in the embodiment of the present application;
fig. 8 is a diagram illustrating a comparison of relative positions of a pixel area where a first sub-pixel area is located and a pixel area where a second sub-pixel area is located in the image capturing module disclosed in the embodiment of the present application.
Description of the reference numerals:
100-shell body,
200-lens,
410-a first photosensitive chip, 420-a second photosensitive chip, 401-a first sub-pixel region, 402-a second sub-pixel region, 403-a third sub-pixel region, 404-a fourth sub-pixel region, 401 '-a first sub-pixel region, 402' -a second sub-pixel region, 403 '-a third sub-pixel region, 404' -a fourth sub-pixel region,
500-optical filter,
600-limit piece, 610-first limit piece, 620-second limit piece, 601-limit base, 602-connecting part, 603-limit groove,
700-a transflective member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. 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 application.
Technical solutions disclosed in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present application discloses a camera module, which may include a lens 200, a transreflective member 700, a driving member, and a plurality of photo-sensing chips. Of course, the camera module may further include other structures such as the housing 100, and for brevity, the description thereof is omitted here.
Wherein, lens 200 can form fixed connection relation through modes such as bonding or joint with the casing 100 of the module of making a video recording, and the module of making a video recording outside light can be through lens 200 incidenting to the module of making a video recording in, and lens 200 can provide the grading effect for light. The number of lenses in the lens 200 may be determined according to an actual situation, and optionally, the lens 200 includes a plurality of lenses arranged at intervals, axes of the plurality of lenses coincide, and the plurality of lenses may include at least one convex lens and at least one concave lens, so as to improve a light distribution effect of the lens 200.
The transflective member 700 has a transmissive function and a reflective function, that is, among the light rays emitted to the transflective member 700, a part of the light rays may pass through the transflective member 700 and continue to propagate, and another part of the light rays may be reflected by the transflective member 700 and propagate along the reflective direction. Specifically, the transflective member 700 may be made of a translucent material such as glass or plastic, and the thickness of the transflective member 700 may be selected according to practical situations, and is not limited herein. The transflective member 700 may be fixed to the housing 100 of the camera module by bonding or connecting members, and the transflective member 700 may be disposed corresponding to the lens 200, so as to ensure that light incident from the lens 200 into the camera module can be emitted to the transflective member 700.
The photosensitive chips are imaging sensors, and all the photosensitive chips are bayer array sensors, that is, photosensitive pixels in all the photosensitive chips are arranged in a bayer array mode. Each photosensitive chip comprises a plurality of pixel areas arranged in rows and columns, each pixel area comprises four sub-pixel areas, and the four sub-pixel areas are arranged in a 2 multiplied by 2 matrix. The four sub-pixel regions may include two green pixels, one blue pixel, and one red pixel, and the two green pixels are diagonally disposed. The four sub-pixel regions in each pixel region may be a first sub-pixel region, a second sub-pixel region, a third sub-pixel region and a fourth sub-pixel region, respectively.
Generally, the photosensitive chip may include a filter array layer through which light is irradiated and a photosensitive layer on which the filter array layer is capable of filtering colors, which may allow the light passing through the filter array layer to retain only one color component, such as red, blue or green.
As mentioned above, the sensor chip includes a plurality of pixel regions, each pixel region includes four sub-pixel regions, and in detail, each sub-pixel region is a part of the sensor chip, that is, each sub-pixel region may include a sub-filter layer and a sub-sensor layer, the number of the sub-pixel regions is plural, and further, all the sub-filter layers together form a filter array layer, and all the sub-sensor layers together form a sensor layer.
Four filters are arranged in a part, corresponding to each pixel region, in a filter array layer of the Bayer array sensor, and correspond to four sub-pixel regions in one pixel region one by one; also, the four filters generally include a red filter, a blue filter, and two green filters, RGGB for short. In the case where the types of filters provided in different sub-pixel regions on the photosensitive layer are different, the colors of images formed in regions of the photosensitive layer corresponding to the different sub-pixel regions are also different.
The quantity of sensitization chip can be two, two sensitization chips are first sensitization chip 410 and second sensitization chip 420 respectively, first sensitization chip 410 and second sensitization chip 420 all cooperate with lens 200 through transmission reflector 700 to make through the light that lens 200 incided to in the module of making a video recording can take place transmission and reflection in transmission reflector 700 department, produce transmission light and reflection light, one in transmission light and the reflection light directive first sensitization chip 410, another directive second sensitization chip 420. That is, under the action of the transreflective member 700, the same scene (such as a human image or an object image) can simultaneously form images with the same content on the first photosensitive chip 410 and the second photosensitive chip 420.
Specifically, the first photosensitive chip 410 may be disposed on a transmission side of the transreflective member 700, that is, the light emitted to the first photosensitive chip 410 is transmitted light; correspondingly, the second photosensitive chip 420 may be disposed on the reflective side of the transreflective member 700, so that the reflected light is emitted to the second photosensitive chip 420. In addition, the positions of the first photosensitive chip 410 and the second photosensitive chip 420 may be determined according to the actual situation, such as the position of the transreflective member 700, i.e., the tilt angle, and the like, and are not limited herein.
As described above, light outside the camera module can be incident into the camera module through the lens 200, and under the action of the transflective member 700, a portion of the light is projected onto the first photo-sensing chip 410 and another portion of the light is transmitted onto the second photo-sensing chip 420, so as to form images with the same content on the first photo-sensing chip 410 and the second photo-sensing chip 420. Certainly, under the condition that the sizes of the first photosensitive chip 410 and the second photosensitive chip 420 are different or the setting position of one is inclined, the content of the image formed on one of the first photosensitive chip 410 and the second photosensitive chip 420 may be more than the content of the image formed on the other one, in this case, it may be ensured that at least a part of the content of the image formed on the first photosensitive chip 410 and the second photosensitive chip 420 in the same scene is the same by adjusting parameters such as the size or the setting position of the first photosensitive chip 410 and/or the second photosensitive chip 420, and further it is ensured that in the process of shooting through the camera module, the finished image is synthesized through a preset algorithm based on the images formed on the first photosensitive chip 410 and the second photosensitive chip 420, and the finished image is output.
In the present application, the first photosensitive chip 410 and the second photosensitive chip 420 are both movably engaged with the lens 200 through a driving member, the driving member can drive the first photosensitive chip 410 to switch between the first position and the third position, and the driving member can drive the second photosensitive chip 420 to switch between the second position and the fourth position;
under the condition that the first photosensitive chip 410 is located at the first position, the light incident from the lens 200 forms a first image in the first sub-pixel region of the first photosensitive chip 410; in the case where the first photo-sensing chip 410 is located at the third position, the light incident from the lens 200 forms a third image in the third sub-pixel region of the first photo-sensing chip 410; when the second photo chip 420 is at the second position, the light incident from the lens 200 forms the second image in the second sub-pixel region of the second photo chip 420; when the second photo chip 420 is located at the fourth position, the light incident from the lens 200 forms the first image in the first sub-pixel region of the second photo chip 420, that is, the image formed when the second photo chip 420 is located at the fourth position is the same as the image formed when the first photo chip 410 is located at the first position.
The contents of the first image, the second image and the third image are the same, and the equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area and the third sub-pixel area in the same pixel area are any three sub-pixel areas in the pixel area.
As described above, the pixel region includes four sub-pixel regions arranged in a 2 × 2 manner, in this embodiment, one of the first photosensitive chip 410 and the second photosensitive chip 420 can move along a first direction, the other can move along a second direction, and the first direction and the second direction are perpendicular to each other, so that when the first photosensitive chip 410 and the second photosensitive chip 420 are respectively matched with the lens, one image direction in the formed images is repeated, that is, a first image and a fourth image, and in the working process of the camera module, the calibration effect can be provided for the camera module through the first image and the fourth image.
As described above, although the first sub-pixel area and the second sub-pixel area are respectively located on the first photosensitive chip 410 and the second photosensitive chip 420, since the first sub-pixel area and the second sub-pixel area are both corresponding to the filter and the structures of the plurality of pixel areas on the photosensitive chip are all the same, the pixel area where the first sub-pixel area is located necessarily includes a sub-pixel area that is the same as the filter corresponding to the second sub-pixel area, and correspondingly, the pixel area where the second sub-pixel area is located also necessarily includes a sub-pixel area that is the same as the filter corresponding to the first sub-pixel area, and therefore, the first sub-pixel area can be equivalent to another sub-pixel area in the pixel area where the second sub-pixel area is located. The equivalent sub-pixel areas of the first sub-pixel area and the second sub-pixel area in the same pixel area are any two sub-pixel areas in the pixel area, that is, when the first sub-pixel area is equivalent to the pixel area where the second sub-pixel area is located, the equivalent of the first sub-pixel area is not necessarily the second sub-pixel area, and correspondingly, when the second sub-pixel area is equivalent to the pixel area where the first sub-pixel area is located, the equivalent of the second sub-pixel area is not necessarily the first sub-pixel area. In addition, the third image is formed on the third sub-pixel area of the first photosensitive chip after the first photosensitive chip is moved, and the third sub-pixel area and the first sub-pixel area can be different sub-pixel areas in the same pixel area by controlling the displacement amount of the first photosensitive chip in the displacement direction.
In the case of the above-mentioned technical solution, taking a light beam incident from the center of the lens 200 as an example, the light beam is simultaneously projected to the first photosensitive chip 410 and the second photosensitive chip 420 through the transreflective member 700. By designing the relative positions between the first photosensitive chip 410 and the second photosensitive chip 420 and the lens 200, when the first photosensitive chip is located at the first position and the second photosensitive chip is located at the second position, the light beam can be directed to the first sub-pixel region corresponding to the red filter in the first photosensitive chip 410 and the light beam can be directed to the second sub-pixel region corresponding to the green filter in the second photosensitive chip 420. Alternatively, the light beam may be directed to a first sub-pixel region corresponding to the blue filter in the first photosensitive chip 410, and the light beam may be directed to a second sub-pixel region corresponding to the green filter in the second photosensitive chip 420. Still alternatively, the light beam may be directed to a first sub-pixel region corresponding to the first green filter in the first photosensitive chip 410, and the light beam may be directed to a second sub-pixel region corresponding to the second green filter in the second photosensitive chip 420; the red filter is adjacent below the first green filter, the blue filter is adjacent on the right side, the red filter is adjacent above the second green filter, and the blue filter is adjacent on the left side, that is, the positions of the first green filter and the second green filter in one pixel area are different. Accordingly, in the case where the first photosensitive chip moves from the first position to the third position, the filter corresponding to the third sub-pixel region may be located at a different position within one pixel region from the filter corresponding to the first sub-pixel region.
To sum up, the filter corresponding to the first sub-pixel area in the first photosensitive chip 410 performs filtering processing on the light beam, which is different from the filtering processing result of the filter corresponding to the second sub-pixel area in the second photosensitive chip 420, and the filter corresponding to the first sub-pixel area in the first photosensitive chip 410 performs filtering processing on the light beam, which is also different from the filtering processing result of the filter corresponding to the third sub-pixel area in the first photosensitive chip 410 performs filtering processing on the light beam, so that the same light can be processed by the three filters respectively, and three images with the same content and different color distribution are formed, and based on the first image and the third image formed on the first photosensitive chip 410 and the second image formed on the second photosensitive chip 420, the real photosensitive pixels of each filtering channel on the formed composite image can be increased, so as to improve the resolution of the image, so that the presentation effect of the photograph is better, and the image quality level and user experience of the final image are improved.
As described above, the positions of the first photosensitive chip 410 and the second photosensitive chip 420 relative to the lens 200 can be designed to achieve the purpose of forming the same content and different colors of the first image and the second image. More specifically, the arrangement positions of the first photosensitive chip 410 at the first position and the second photosensitive chip 420 at the second position may be different by the size of one sub-pixel region, or the arrangement positions of the first photosensitive chip 410 at the first position and the second photosensitive chip 420 at the second position may be different by the sum of the sizes of one sub-pixel region and n pixel regions, n is an integer, and n is greater than or equal to 0.
In addition, the direction in which the first photosensitive chip 410 and the second photosensitive chip 420 are shifted from each other may be determined according to actual circumstances, and for example, the first photosensitive chip 410 may be shifted from the second photosensitive chip 420 by one sub-pixel region in the left direction, the first photosensitive chip 410 may be shifted from the second photosensitive chip 420 by one sub-pixel region in the lower direction, or the first photosensitive chip 410 may be shifted from the second photosensitive chip 420 by one sub-pixel region in the lower left direction, which is not limited herein. In addition, when the misalignment direction is different, the filters corresponding to the first sub-pixel area in the first photosensitive chip 410 and the second sub-pixel area in the second photosensitive chip 420 are also different.
More intuitively, as shown in fig. 5, fig. 5 shows the distribution of four sub-pixel regions in each pixel region of the light-sensing chip, which are a first sub-pixel region 401, a second sub-pixel region 402, a third sub-pixel region 403 and a fourth sub-pixel region 404, respectively, and each pixel region of the second light-sensing chip 420 includes a first sub-pixel region 401', a second sub-pixel region 402', a third sub-pixel region 403 'and a fourth sub-pixel region 404'. In the process of laying out the first photo-sensing chip 410 and the second photo-sensing chip 420, taking the distribution of the pixel regions in the first photo-sensing chip 410 as the scheme shown in fig. 2 as an example, the relative positions of the pixel regions in the second photo-sensing chip 420 and the pixel regions in the first photo-sensing chip 410 may be any one of fig. 6 to fig. 8, that is, the first photo-sensing chip 410 is staggered by one sub-pixel region to the left, below or left-below relative to the second photo-sensing chip 420.
The embodiment of the application provides a camera module, first sensitization chip 410 and second sensitization chip 420 pass through reflector and lens cooperation, when sensitization chip and lens cooperation, can form first image in the first sub-pixel district of first sensitization chip 410, can form the second image the same with the content of first image in the second sub-pixel district of second sensitization chip 420, in addition, through removing first sensitization chip, can also make the third image that the third sub-pixel district of first sensitization chip formed and is the same with first image content. In addition, the equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area and the third pixel area in the same pixel area are any three of the pixel areas, so that in the two imaging processes, the two photosensitive chips can generate three different filtering processing results of the same incident light, the first image, the second image and the third image are synthesized by means of a preset algorithm, the real photosensitive pixels of each filtering channel on the formed synthesized image can be increased, the resolution of the image is improved, the image presenting effect of the image is better, and the final image quality level and the user experience are improved.
Optionally, by designing the relative positions of the first photosensitive chip 410, the second photosensitive chip 420 and the lens 200, the first sub-pixel region, the second sub-pixel region and the third sub-pixel region may respectively correspond to a green filter, a red filter and a blue filter, which enables the resolutions of photosensitive pixels corresponding to R, G and B in an image to be improved, and the effect of the formed image is better. In addition, when the technical scheme is adopted, compared with the scheme that light rays are directly incident to the photosensitive chip, the resolution ratio of the R image and the B image is increased by two times, the resolution ratio of the G image is increased by one time, and the definition of the image is greatly improved.
In the process that the driving member drives the first photosensitive chip 410 and the second photosensitive chip 420 to move, the driving amount of the driving member is accurately controlled, so that the first photosensitive chip 410 and the second photosensitive chip 420 can be moved by a preset displacement amount when moving, and the preset displacement amount can be the side length of a sub-pixel area. In order to reduce the control degree of difficulty of the camera module, in another embodiment of the present application, optionally, the camera module further includes a limiting member 600, and the first photosensitive chip and the second photosensitive chip can be movably matched with the lens through the limiting member 600.
The limiting member 600 includes a limiting seat 601 and a connecting portion 602, the limiting seat or the connecting portion is connected to the driving member, and correspondingly, the first connecting portion can also be connected to the connecting portion. For example, spacing seat can be fixed on the casing, and the drive head of first sensitization chip and driving piece all is connected with connecting portion to remove through the first sensitization chip of driving piece drive, at the removal in-process of first sensitization chip, the restriction of connecting portion by spacing seat, thereby can control the displacement volume and the displacement direction of first sensitization chip through spacing cooperation relation between spacing seat and the connecting portion, reduce the drive degree of difficulty. Correspondingly, the second photosensitive chip can also be connected to the housing through the limiting member.
The limiting seat 601 is provided with a limiting groove 603, the connecting part 602 is arranged in the limiting groove 603, the connecting part and the limiting groove are in limiting fit in a first direction, the driving part can drive the connecting part to move between a first position and a second position in the limiting groove along a second direction, and then the moving direction of the first photosensitive chip can be limited through the limiting groove; and, the distance that the connecting part moves from the first position to the second position is equal to the side length of the sub-pixel region, and the first direction is perpendicular to the second direction, in this case, the displacement amount of the first photosensitive chip can be further limited.
Specifically, the limiting member may be a micro electromechanical system, which enables the first photosensitive chip and the second photosensitive chip to generate displacement of a pixel size level, so as to ensure that the first photosensitive chip 410 can accurately move between the first position and the third position, and further ensure that the second photosensitive chip 420 can accurately move between the second position and the fourth position, thereby reducing difficulty in controlling the displacement of the first photosensitive chip 410 and the second photosensitive chip 420.
In addition, when the first photosensitive chip 410 and the second photosensitive chip 420 are mounted by using the above-mentioned limiting member, since the moving directions of the first photosensitive chip 410 and the second photosensitive chip 420 are perpendicular to each other, the arrangement directions of the limiting member connected to the first photosensitive chip and the limiting member connected to the second photosensitive chip lens can be perpendicular to each other. Specifically, the first photosensitive chip is connected to the housing through the first limiting member 610, and the second photosensitive chip mirror is connected to the housing through the second limiting member 620, and since the arrangement directions of the first limiting member 610 and the second limiting member 620 are perpendicular to each other, the extending direction of the limiting groove 603 in the first limiting member 610 and the extending direction of the limiting groove 603 in the second limiting member 620 can also be perpendicular to each other, so that the first photosensitive chip 410 can be ensured to move between the first position and the third position, and the second photosensitive chip 420 can be ensured to move between the second position and the fourth position.
Wherein, the size of the spacing groove on the spacing seat in the first direction and the second direction can be confirmed according to the structure and the size isoparametric of connecting portion, and the displacement when only needing to guarantee that the connecting piece removes in the spacing inslot satisfies above-mentioned requirement can. Optionally, the size of the connecting portion in the first direction and the size of the connecting portion in the second direction are equal to the side length of the sub-pixel region, in this case, the size of the bottom surface of the limiting groove may be equal to the size of two sub-pixel regions spliced with each other, which makes the design and processing difficulty of the limiting groove relatively low, and may ensure that the connecting portion and the limiting groove have a relatively reliable limiting relationship. Specifically, the connecting portion may be a cylindrical structural member whose bottom surface is square, and in another embodiment of the present application, the connecting portion 602 may be a cylindrical structural member, and in this case, the contact area between the connecting portion 602 and the limiting groove 603 is small, so that the difficulty of relative movement between the connecting portion 602 and the limiting groove 603 can be reduced, and the driving difficulty can be reduced.
Alternatively, the photosensitive surface of the second photosensitive chip 420 may be perpendicular to the photosensitive surface of the first photosensitive chip 410. Correspondingly, in order to ensure that the light incident from the lens 200 can respectively irradiate to the first photosensitive chip 410 and the second photosensitive chip 420 through the transmission reflection member 700, an included angle between the axis of the transmission reflection member 700 and the optical axis direction of the lens 200 can be 45 °, in this case, the design and installation are facilitated, and then the accuracy of the formed first image, the second image and the third image is higher, so that the presenting effect of the composite image is better.
As described above, the transreflective member 700 may be made of a translucent material, and the transmittance and reflectance thereof may be determined according to actual requirements. Optionally, the transmittance and reflectance of the transflective member 700 are both 50%, in this case, half of the light incident from the lens 200 can be transmitted to a side of the first transflective member 700 away from the lens 200, and the other half of the light can be reflected on the first transflective member 700, so that the brightness of the light incident into the first photosensitive chip 410 and the second photosensitive chip 420 is substantially the same, and further, the parameters of the exposure degree, the depth of field, and the like of the first image and the second image can be substantially the same, so that each parameter of the image synthesized based on the first image and the second image by the preset algorithm is better.
Optionally, the camera module provided in this embodiment of the application further includes an infrared filter 500, and the infrared filter 500 may provide a filtering effect for light incident into the camera module through the lens 200, so as to filter unnecessary light projected into the first photosensitive chip 410 and the second photosensitive chip 420, prevent the first photosensitive chip 410 and the second photosensitive chip 420 from generating false colors and/or ripples, and improve effective resolution and color reducibility of the first photosensitive chip 410 and the second photosensitive chip 420.
Specifically, the number of the infrared filters 500 may be two, one infrared filter 500 may be disposed between the first photosensitive chip 410 and the transmission reflector 700, and the other infrared filter 500 may be disposed between the second photosensitive chip 420 and the transmission reflector 700, so that the light incident into the first photosensitive chip 410 and the second photosensitive chip 420 can be filtered by the infrared filters 500, and the quality of the first image and the second image is improved.
In another embodiment of the present application, optionally, the number of the infrared filters 500 is one, and the infrared filters 500 are disposed on one side of the lens 200 facing the transmission reflection member 700, so that unnecessary light rays entering the first photosensitive chip 410 and the second photosensitive chip 420 can be filtered out at the same time, and the number of the infrared filters 500 can be reduced, which reduces the cost on the one hand, reduces the assembly difficulty on the other hand, saves the space, and reduces the size of the camera module.
Optionally, the lens 200 is an extended depth of field lens 200, and the passing focuses of the three filter channels R, G, and B of the lens 200 are designed to be located at different positions, and the three passing focuses cover three focus segments, so that the longitudinal chromatic aberration of the three bands R, G, and B is enlarged, and the purpose of covering three distances, i.e., far, medium, and near distances, is achieved. The three distances far, medium and near are relative concepts, that is, the farther distance is a position farther from the medium distance, and the closer distance is a position closer to the medium distance.
By adopting the above technical solution for the lens 200, three photos corresponding to R, G and B can be taken, and the three photos are focused on the above three distances. Then, based on a restoration algorithm, a window detection function can be used for detecting the whole field of view area, determining which of the three photos corresponding to the R, G and B in each window is clearest, then, based on the clearest photo, performing definition transformation on the other two photos by means of a deconvolution algorithm, and synthesizing the photos with relatively clear full distance.
Based on the module of making a video recording that any one above-mentioned embodiment disclosed, this application embodiment still provides an electronic equipment, and electronic equipment includes the module of making a video recording that any one above-mentioned embodiment provided, and of course, electronic equipment still includes other devices such as display module, casing and battery, considers that the text is succinct, and the no longer introduces one by one here.
The electronic device disclosed by the embodiment of the application can be a smart phone, a tablet computer, an electronic book reader or a wearable device. Of course, the electronic device may also be other devices, which is not limited in this embodiment of the application.
In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A camera module is characterized by comprising a lens, a transmission reflection piece, a driving piece, a limiting piece and a plurality of photosensitive chips, wherein each photosensitive chip is a Bayer array sensor, each photosensitive chip comprises a plurality of pixel areas arranged in rows and columns, each pixel area comprises four sub-pixel areas, the plurality of photosensitive chips comprise a first photosensitive chip and a second photosensitive chip, the first photosensitive chip and the second photosensitive chip are matched with the lens through the transmission reflection piece, the first photosensitive chip and the second photosensitive chip are movably matched with the lens through the limiting piece, the limiting piece comprises a limiting seat and a connecting piece, the limiting seat or the connecting piece is connected with the driving piece, the limiting seat is provided with a limiting groove, the connecting piece is arranged in the limiting groove, the connecting piece is in limiting matching with the limiting groove in a first direction, the driving piece can drive the connecting piece to move between a first position and a second position in the limiting groove along a second direction, the distance of the connecting piece moving from the first position to the second position is equal to the side length of the sub-pixel areas, and the connecting piece is perpendicular to the second position;
the first photosensitive chip and the second photosensitive chip are both connected with the driving piece, the driving piece can drive the first photosensitive chip to move between a first position and a third position, and the driving piece can drive the second photosensitive chip to switch between a second position and a fourth position;
under the condition that the first photosensitive chip is located at the first position, light rays incident from the lens form a first image in a first sub-pixel area of the first photosensitive chip;
under the condition that the first photosensitive chip is located at a third position, light rays incident from the lens form a third image in a third sub-pixel area of the first photosensitive chip;
under the condition that the second photosensitive chip is located at the second position, light rays incident from the lens form a second image in a second sub-pixel area of the second photosensitive chip;
under the condition that the second photosensitive chip is located at a fourth position, the light rays incident from the lens form the first image in a first sub-pixel area of the second photosensitive chip;
the contents of the first image, the second image and the third image are the same, and the equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area and the third sub-pixel area in the same pixel area are any three sub-pixel areas in the pixel area.
2. The camera module of claim 1, wherein the dimensions of the connecting portion in the first direction and the second direction are equal to the side length of the sub-pixel region.
3. The camera module of claim 2, wherein the connecting portion is a cylindrical structural member.
4. The camera module of claim 1, wherein the photosensitive surface of the second photosensitive chip is perpendicular to the photosensitive surface of the first photosensitive chip.
5. The camera module of claim 1, wherein the transflective member has a reflectivity and a transmissivity of 50%.
6. The camera module of claim 1, further comprising an infrared filter.
7. The camera module of claim 6, wherein the infrared filter is disposed on a side of the lens facing the transreflective member.
8. The camera module of claim 1, wherein the lens is an extended depth of field lens.
9. An electronic device comprising the camera module of any one of claims 1-8.
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| CN104079904A (en) * | 2014-07-17 | 2014-10-01 | 广东欧珀移动通信有限公司 | Color image generating method and device |
| CN107846535A (en) * | 2017-10-24 | 2018-03-27 | 信利光电股份有限公司 | A kind of camera module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10299880B2 (en) * | 2017-04-24 | 2019-05-28 | Truevision Systems, Inc. | Stereoscopic visualization camera and platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948153A (en) * | 2010-05-28 | 2013-02-27 | C2Cure公司 | Two sensor imaging systems |
| CN104079904A (en) * | 2014-07-17 | 2014-10-01 | 广东欧珀移动通信有限公司 | Color image generating method and device |
| CN107846535A (en) * | 2017-10-24 | 2018-03-27 | 信利光电股份有限公司 | A kind of camera module |
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