CN112788218A

CN112788218A - Electronic equipment and camera module thereof

Info

Publication number: CN112788218A
Application number: CN202011642366.0A
Authority: CN
Inventors: 李沛德; 黄蓉蓉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-11
Anticipated expiration: 2040-12-31
Also published as: CN112788218B

Abstract

The application discloses electronic equipment and a camera module thereof, which belong to the field of communication equipment, wherein the camera module comprises a first lens, a first transmission reflection piece and a plurality of photosensitive chips, the photosensitive chips are Bayer array sensors, 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 first lens through the first transmission reflection piece; the light rays incident from the first lens form a first image in a first sub-pixel area of the first photosensitive chip, and form a second image in a second sub-pixel area of the second photosensitive chip, the contents of the first image and the second image are the same, and 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. The camera module that above-mentioned technical scheme provided can promote the formation of image definition.

Description

Electronic equipment and camera module thereof

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 increasingly competitive market, electronic devices usually have at least one more prominent feature to differentiate from other electronic devices, thereby improving the market competitiveness of the electronic devices. 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 better; 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 the imaging result will also be adversely affected, so that 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 first lens, a first transmission reflection 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 first lens through the first transmission reflection piece;

the light rays incident from the first lens form a first image in a first sub-pixel area of the first photosensitive chip, and form a second image in a second sub-pixel area of the second photosensitive chip, the contents of the first image and the second image are the same, and 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.

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, its first sensitization chip and second sensitization chip can be through a transmission reflection piece and first lens cooperation to make the light of incidenting through first lens can throw simultaneously on first sensitization chip and second sensitization chip, the content that forms the first image in the first sub-pixel district of first sensitization chip and the second image that forms in the second sub-pixel district of second sensitization chip is the same. And 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 of the pixel areas, so that the filtering processing results of the first photosensitive chip and the second photosensitive chip on incident light are different, and further, the first image and the second image are synthesized by means of a preset algorithm, the real photosensitive pixel of each filtering channel on the formed synthesized image can be increased, the resolution of the image is improved, the presentation effect of the picture 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 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. 3 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. 4 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. 5 is a diagram illustrating a comparison between 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 according to an embodiment of the present disclosure.

Description of reference numerals:

100-shell body,

210-first lens, 220-second lens,

410-a first photosensitive chip, 420-a second photosensitive chip, 430-a third photosensitive chip, 440-a fourth 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,

710-first transflective member, 720-second 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, the present application discloses a camera module, which includes a first lens 210, a first transflective member 710, and a plurality of photosensitive 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.

The first lens 210 can be fixedly connected with the housing 100 of the camera module by bonding or clamping, light outside the camera module can be incident into the camera module through the first lens 210, and the first lens 210 can provide a light distribution effect for the light. The number of the lenses in the first lens 210 may be determined according to an actual situation, and optionally, the first lens 210 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 first lens 210.

The first transflective member 710 has a transmissive function and a reflective function, that is, among the light rays emitted to the first transflective member 710, a part of the light rays may pass through the first transflective member 710 and continue to propagate, and another part of the light rays may be reflected by the first transflective member 710 and propagate along the reflective direction. Specifically, the first transflective member 710 may be made of a translucent material such as glass or plastic, and the thickness of the first transflective member 710 may be selected according to practical situations, and is not limited herein. The first transflective member 710 may be fixed on the housing 100 of the camera module by bonding or connecting by a connector, and the first transflective member 710 and the first lens 210 may be disposed correspondingly, so as to ensure that light incident into the camera module from the first lens 210 can be emitted to the first transflective member 710.

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 light is irradiated, the filter array layer being capable of filtering colors, which may allow 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-photosensitive layer, the number of the sub-pixel regions is plural, further, all the sub-filter layers jointly constitute a filter array layer, and all the sub-photosensitive layers jointly constitute a photosensitive layer.

Four filters are arranged in a part, corresponding to each pixel region, in a filter array layer of the Bayer array sensor, and the four filters are in one-to-one correspondence with four sub-pixel regions in one pixel region; 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, and two sensitization chips are first sensitization chip 410 and second sensitization chip 420 respectively, and the two all can be fixed on the casing 100 of module of making a video recording through modes such as bonding to make first sensitization chip 410 and second sensitization chip 420 all can with first lens 210 relatively fixed. The first photosensitive chip 410 and the second photosensitive chip 420 are matched with the first lens 210 through the first transmission reflection piece 710, so that light rays incident into the camera module through the first lens 210 can be transmitted and reflected at the first transmission reflection piece 710 to generate transmission light rays and reflection light rays, one of the transmission light rays and the reflection light rays is emitted to the first photosensitive chip 410, and the other one of the transmission light rays and the reflection light rays is emitted to the second photosensitive chip 420. That is, under the action of the first transreflective member 710, 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 first transreflective member 710, 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 first transflective member 710, 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 transflective member, 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 first lens 210, and under the action of the first transmissive/reflective element 710, a part of the light is projected onto the first photosensitive chip 410, and another part of the light is transmitted to the second photosensitive chip 420, so that images with the same content are formed on the first photosensitive chip 410 and the second photosensitive 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 this application, the light incident from the first lens 210 may form a first image in the first sub-pixel region of the first photo-sensing chip 410, and form a second image in the second sub-pixel region of the second photo-sensing chip 420, where the contents of the first image and the second image are the same, and the equivalent sub-pixel regions of the first sub-pixel region and the second sub-pixel region in the same pixel region are any two sub-pixel regions in the pixel region.

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 with the same type 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 with the same type 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 the case of the above-mentioned technical solution, taking a light beam incident from the center of the lens as an example, the light beam is simultaneously projected to the first photosensitive chip 410 and the second photosensitive chip 420 through the first transflective member 710. By designing the relative positions between the first photosensitive chip 410 and the second photosensitive chip 420 and the first lens 210, 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.

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 differently from the filter corresponding to the second sub-pixel area in the second photosensitive chip 420, so that the same light can be processed by the two filters respectively, and two images with the same content but different colors are formed, and are synthesized by a preset algorithm based on the first image and the second image formed on the first photosensitive chip 410 and the second photosensitive chip 420, so that the real photosensitive pixels of each filtering channel on the formed images can be increased, the resolution of the images is further improved, the presentation effect of the images is better, and the final image quality level and the user experience are improved.

As described above, the positions of the first photosensitive chip 410 and the second photosensitive chip 420 with respect to the first lens 210 can be designed to achieve the purpose of forming the first image and the second image with the same content and different colors. More specifically, the arrangement positions of the first photosensitive chip 410 and the second photosensitive chip 420 may be different by a size of a side length of one sub-pixel region, or the arrangement positions of the first photosensitive chip 410 and the second photosensitive chip 420 may be different by a sum of the size of the side length of one sub-pixel region and the size of the side lengths of 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 displaced from each other may be determined according to actual situations. For example, the first photosensitive chip 410 may be shifted to the left of the second photosensitive chip 420 by a size equal to the side length of the sub-pixel region, the first photosensitive chip 410 may be shifted to the lower side of the second photosensitive chip 420 by a size equal to the side length of the sub-pixel region, or the first photosensitive chip 410 may be shifted to the left of the second photosensitive chip 420 by a size equal to the diagonal line length of the sub-pixel region. In addition, when the misalignment directions of the first photosensitive chip 410 and the second photosensitive chip 420 are different, the types of 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. 2, fig. 2 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 photosensitive chip 410 and the second photosensitive chip 420, taking the distribution of each pixel region in the first photosensitive chip 410 as an example as the scheme shown in fig. 2, the relative position between the pixel region in the second photosensitive chip 420 and the pixel region in the first photosensitive chip 410 may be any one of fig. 3 to 5, that is, the first photosensitive chip 410 is respectively staggered from the second photosensitive chip 420 by a size equal to the side length of the sub-pixel region in the left direction or in the lower direction, or is staggered from the first photosensitive chip 410 by a size equal to the diagonal line length of the sub-pixel region in the left direction or in the lower direction.

The embodiment of the application provides a camera module, a first photosensitive chip 410 and a second photosensitive chip 420 of which can be matched with a first lens 210 through a first transmission reflection piece 710, so that light rays incident through the first lens 210 can be simultaneously projected on the first photosensitive chip 410 and the second photosensitive chip 420, and the contents of a first image formed in a first sub-pixel area of the first photosensitive chip 410 and a second image formed in a second sub-pixel area of the second photosensitive chip 420 are the same. Moreover, 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 of the pixel areas, so that the filtering processing results of the first photosensitive chip 410 and the second photosensitive chip 420 on incident light are different, and further, the first image and the second image are synthesized by means of a preset algorithm, the real photosensitive pixel of each filtering channel on the formed synthesized image can be increased, the resolution of the image is further improved, the presentation effect of the image is better, and the final image quality level and the user experience are improved.

Optionally, the camera module disclosed in this embodiment of the application further includes a second lens 220, and the fields of view of the second lens 220 and the first lens 210 are the same, that is, the light incident from the first lens 210 may be incident into the second lens 220 from a corresponding position on the second lens 220. Specifically, the fields of view of the first lens 210 and the second lens 220 can be the same by designing the parameters of the structure, the orientation and the like of the first lens 210 and the second lens 220. The photosensitive chip further includes a third photosensitive chip 430, the third photosensitive chip 430 is matched with the second lens 220, light incident from the second lens 220 forms a third image in a third sub-pixel region of the third photosensitive chip 430, the content of the third image is the same as that of the first image, and equivalent sub-pixel regions of the first sub-pixel region, the second sub-pixel region and the third sub-pixel region in the same pixel region are any three sub-pixel regions in the pixel region.

By adopting the technical scheme, the mode of the filtering processing result of the same light can be further increased, and after the first image, the second image and the third image are synthesized through the preset algorithm, the photorealistic pixels of each filtering channel on the synthesized image can be further increased, so that the resolution of the image is further improved. Specifically, the types of filters corresponding to the first sub-pixel area, the second sub-pixel area, and the third sub-pixel area may be determined by controlling the relative positions of the first photosensitive chip 410, the second photosensitive chip 420, and the third photosensitive chip 430. Optionally, 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 the photosensitive pixels corresponding to RGB in the image to be improved, so that the effect of the formed image is better.

Further, the camera module may further include a second transflective member 720, the photosensitive chip further includes a fourth photosensitive chip 440, and the third photosensitive chip 430 and the fourth photosensitive chip 440 are both matched with the second lens 220 through the second transflective member 720. Similar to the first transflective element 710, the second transflective element 720 can also provide transmission and reflection for the light, so that the light incident from the second lens 220 can form transmission light and reflection light by the second transflective element 720, and one of the transmission light and the reflection light is emitted to the third photo-sensing chip 430 and the other is emitted to the fourth photo-sensing chip 440.

The light incident from the second lens 220 forms a fourth image in the fourth sub-pixel region of the fourth photo-sensing chip 440, and the content of the fourth image is the same as that of the third image and the first image and the second image. The equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area, the third sub-pixel area and the fourth sub-pixel area in the same pixel area are four sub-pixel areas in the pixel area.

Under the condition of adopting the technical scheme, the pattern of the light ray filtering processing result of the photosensitive chip can be further increased, and the number of the photorealistic pixels of each filtering channel in the synthesized image can be further increased by synthesizing the first image, the second image, the third image and the fourth image through the preset algorithm. Specifically, when the technical scheme is adopted, compared with a scheme only provided with one photosensitive chip, the resolution of R and B images is improved by three times, and the resolution of G image is improved by one time, so that the definition of a composite image is greatly improved.

In the case where the image pickup module includes the second transreflective member 720, one of the third and fourth

photosensitive chips

430 and 440 may be disposed on the transmission side of the second transreflective member 720, and the other may be disposed on the reflection side of the second transreflective member 720. Alternatively, the third photosensitive chip 430 may be disposed on the transmission side, and the third photosensitive chip 430 is disposed opposite to the second lens 220, so that the light incident from the second lens 220 can be normally transmitted to the third photosensitive chip 430 through the second transreflective member 720. The disposed position of the fourth photosensitive chip 440 is related to the disposed position and the inclination angle of the second transreflective member 720.

For example, the angle between the axial direction of the second transflective member 720 and the optical axis direction of the second lens 220 may be 30 °, and the incident angle is equal to the reflection angle, the fourth photo-sensing chip 440 may be inclined toward the third photo-sensing chip 430, that is, the angle between the photo-sensing surface of the fourth photo-sensing chip 440 and the optical axis direction of the second lens 220 is 30 °.

In another embodiment of the present application, the photosensitive surface of the third photosensitive chip 430 may be disposed perpendicular to the photosensitive surface of the fourth photosensitive chip 440. Namely, the plane of the light-sensitive surfaces is vertically arranged. Correspondingly, in order to ensure that the light incident from the second lens 220 can respectively irradiate to the third photosensitive chip 430 and the fourth photosensitive chip 440 through the second transflective member 720, an included angle between the axis of the second transflective member 720 and the optical axis direction of the second lens 220 can be 45 °, in this case, the design and installation are facilitated, and the presenting effect of the composite image is further improved.

Similarly, the first and second

photosensitive chips

410 and 420 are arranged in a manner related to the arrangement angle of the first transreflective member 710. As mentioned above, the camera module may include the housing 100, and optionally, the housing 100 includes a bottom and a side connected to the bottom, and the side may be a rectangular structure including four side walls connected in sequence. The first and third

photosensitive chips

410 and 430 may be mounted at the bottom of the housing 100 and disposed opposite to the first and

second lenses

210 and 220, respectively. Alternatively, the second and fourth

photosensitive chips

420 and 440 may be mounted on the same sidewall in the side portion.

In another embodiment of the present application, optionally, the second photosensitive chip 420 is disposed opposite to the fourth photosensitive chip 440, that is, when the side portion of the housing 100 includes four sidewalls connected in sequence, the second photosensitive chip 420 is connected to one sidewall, and the fourth photosensitive chip 440 is connected to the other sidewall, which are disposed opposite to each other. Under the condition that adopts above-mentioned technical scheme, can make the overall structure's of the module of making a video recording symmetry better, make the gravity distribution of the module of making a video recording more even, and because second sensitization chip 420 and fourth sensitization chip 440 are located different lateral walls respectively to can reduce the probability of mutual influence between the two, further promote the precision of the image that forms on each sensitization chip.

In addition, in the above embodiment, as shown in fig. 1, the axial direction of the first transflective member 710 and the axial direction of the second transflective member 720 may be perpendicular to each other, that is, the transflective surface of the first transflective member 710 and the transflective surface of the second transflective member 720 are perpendicular to each other, so as to ensure that the light incident from the first lens 210 can be simultaneously projected onto the first photosensitive chip 410 and the second photosensitive chip 420, and the light incident from the second lens 220 can be simultaneously transmitted onto the third photosensitive chip 430 and the fourth photosensitive chip 440.

As described above, the first transflective member 710 may be made of a translucent material, and the transmittance and reflectance thereof may be determined according to actual requirements. Optionally, the transmittance and the reflectance of the first transflective member 710 are both 50%, in this case, half of the light incident from the first lens 210 can be transmitted to a side of the first transflective member 710 away from the first lens 210, and the other half of the light can be reflected on the first transflective member 710, 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, parameters such as the exposure degree and the depth of field of the first image and the second image can be substantially the same, so that parameters of an image synthesized based on the first image and the second image by a preset algorithm are better.

Correspondingly, when the camera module includes the second transflective member 720, the transmittance and the reflectance of the second transflective member 720 can be both 50%, so that the parameters of the third image and the fourth image are substantially the same, and the definition of the synthesized image is further improved.

Optionally, the camera module provided in this embodiment of the application may further include an infrared filter, and the infrared filter may provide a filtering effect for light incident into the camera module through the first lens 210, 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 may be two, one infrared filter may be disposed between the first photosensitive chip 410 and the first transmissive reflector 710, and the other infrared filter may be disposed between the second photosensitive chip 420 and the first transmissive reflector 710, so that the light incident into the first photosensitive chip 410 and the second photosensitive chip 420 may be filtered through the infrared filters, and the quality of the first image and the quality of the second image are improved.

In another embodiment of the present application, optionally, the number of the infrared filters is one, and the infrared filters are disposed on one side of the first lens 210 facing the first transmission reflector 710, so as to simultaneously filter out unnecessary light rays from the light rays incident on the first photosensitive chip 410 and the second photosensitive chip 420, and reduce the number of the infrared filters, on one hand, reduce the cost, on the other hand, reduce the assembly difficulty, save the space, and reduce the size of the camera module.

Certainly, the camera module provided by the present application may include the second lens 220, the second transmissive reflector 720, the third photosensitive chip 430 and the fourth photosensitive chip 440, and in this case, optionally, the first lens 210 faces one side of the first transmissive reflector 710, and one side of the second lens 220 facing the second transmissive reflector 720 may be provided with an infrared filter, so as to ensure that the imaging effects of the first photosensitive chip 410, the second photosensitive chip 420, the third photosensitive chip 430 and the fourth photosensitive chip 440 are relatively good, and further improve the imaging quality of the camera module.

Optionally, the first lens 210 is an extended depth of field lens, and the three through focuses of the R, G, B filter channels of the first lens 210 are designed to be located at different positions, and the three through focuses cover three focal segments, so that longitudinal chromatic aberration of the R, G, B three wavelength bands is enlarged, and the purpose of covering three distances, namely 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 first lens 210, three photos corresponding to R, G and B can be taken, and the three photos are focused on the above three distances, namely far, middle and near. Then, based on a restoration algorithm, the whole field of view area can be detected by using a window detection function, which of the three photos corresponding to R, G, B in each window is the clearest is determined, then, based on the clearest photo, the other two photos are subjected to definition conversion by using a deconvolution algorithm, and a photo with relatively clear full distance is synthesized. In addition, when the camera module includes the second lens 220, the second lens 220 may also be an extended depth of field lens.

Based on the module of making a video recording that any embodiment of the aforesaid discloses, this application embodiment still provides an electronic equipment, and electronic equipment includes the module of making a video recording that any embodiment of the aforesaid provided, and of course, electronic equipment still includes other devices such as display module, casing and battery, considers the text succinct, and the here is no longer introduced one by one.

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. 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

1. A camera module is characterized by comprising a first lens, a first transmission reflection piece and a plurality of photosensitive chips, wherein the photosensitive chips are Bayer array sensors, 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 first lens through the first transmission reflection piece;

the light rays incident from the first lens form a first image in a first sub-pixel area of the first photosensitive chip, and form a second image in a second sub-pixel area of the second photosensitive chip, the contents of the first image and the second image are the same, and 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.

2. The camera module according to claim 1, further comprising a second lens, wherein the second lens has the same field of view as the first lens, and the photo sensor chip further comprises a third photo sensor chip, wherein the third photo sensor chip is engaged with the second lens;

and light rays incident from the second lens form a third image in a third sub-pixel area of the third photosensitive chip, the content of the third image is the same as that of the first image, 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.

3. The camera module according to claim 2, further comprising a second transreflective member, wherein the photo sensor chip further comprises a fourth photo sensor chip, and the third photo sensor chip and the fourth photo sensor chip are both engaged with the second lens through the second transreflective member;

and light rays incident from the second lens form a fourth image in a fourth sub-pixel area of the fourth photosensitive chip, the content of the fourth image is the same as that of the third image, and the equivalent sub-pixel areas of the first sub-pixel area, the second sub-pixel area, the third sub-pixel area and the fourth sub-pixel area in the same pixel area are four sub-pixel areas in the pixel area.

4. The camera module of claim 3, wherein the photosensitive surface of the third photosensitive chip and the photosensitive surface of the fourth photosensitive chip are vertically disposed.

5. The camera module according to claim 4, wherein a photosensitive surface of the first photosensitive chip is parallel to a photosensitive surface of the third photosensitive chip, and the second photosensitive chip is disposed opposite to the fourth photosensitive chip.

6. The camera module of claim 1, wherein the first transflective member has a transmittance and a reflectance of 50%.

7. The camera module of claim 1, further comprising an infrared filter.

8. The camera module of claim 7, wherein the infrared filter is disposed on a side of the first lens facing the first transflective member.

9. The camera module of claim 1, wherein the first lens is an extended depth of field lens.

10. An electronic device comprising the camera module of any one of claims 1-9.