CN107144937A - Lens module, camera module and electronic device - Google Patents

Abstract

The lens module comprises a lens base, a lens barrel and a light filter assembly, wherein the lens barrel is installed on the lens base, a light through hole is formed in the lens barrel, an installation hole is formed in the lens base, the light filter assembly comprises an infrared light filter and a color light filter, the lens module further comprises a driving piece installed on the lens base, and the driving piece is used for driving the light filter assembly to move so as to enable the infrared light filter or the color light filter to selectively shield the installation hole. The lens module drives the optical filter component to move through the driving component so as to selectively enable the infrared optical filter to shield the mounting hole or enable the color optical filter to shield the mounting hole, and therefore visible light in all light rays entering from the light through hole can selectively pass through or infrared light rays in all light rays entering from the light through hole can selectively pass through. The invention also discloses a camera module and an electronic device.

Description

Lens module, camera module and electronic device

technical field

The invention relates to the field of imaging technology, in particular to a lens module, a camera module and an electronic device.

Background technique

Generally, iris recognition needs to adopt a special iris camera to obtain iris images. Therefore, in addition to the visible light camera specially used to take color images, the existing electronic device also needs to specially set up the iris camera. The cost also takes up the space of the electronic device.

Contents of the invention

Embodiments of the present invention provide a lens module, a camera module and an electronic device.

The lens module according to the embodiment of the present invention includes a lens base, a lens barrel mounted on the lens base, and a filter assembly, the lens barrel is provided with a light hole, and the lens base is provided with a mounting hole. The optical filter assembly includes an infrared filter and a color filter, and the lens module also includes a driving member installed on the mirror base, and the driving member is used to drive the optical filter assembly to move to The mounting hole can be selectively blocked by the infrared filter or the color filter.

In some embodiments, the filter assembly further includes a carrying plate, and the infrared filter and the color filter are disposed on the carrying plate at intervals.

In some embodiments, the driving part includes a linear motor, and the linear motor includes a stator and a mover, the stator is installed on the inner wall of the mirror base, the mover is connected to the bearing plate, and the The mover moves to drive the bearing plate to move, so that the infrared filter or the color filter can selectively cover the installation hole.

In some embodiments, the driving part includes a linear motor, the linear motor includes a stator and a mover, the stator is installed on the inner wall of the mirror base, and the filter assembly also includes a rotating shaft and the The connecting arm connected to the bearing plate, the mover is connected to the end of the connecting arm far away from the bearing plate, the rotating shaft is arranged between the bearing plate and the mover, and the linear motor drives the The connecting arm moves to drive the bearing plate to rotate around the rotating shaft, so as to selectively make the infrared filter or the color filter cover the installation hole.

In some embodiments, the infrared filter is matched with the installation hole, the color filter is matched with the installation hole, and the distance from the center of the infrared filter to the rotating shaft is the same as The distances from the centers of the color filters to the rotating shafts are the same.

In some embodiments, when the infrared filter covers the installation hole, the infrared filter matches the installation hole, and when the color filter covers the installation hole, the color filter the light sheet matches said mounting hole; or

When the infrared filter covers the installation hole, the infrared filter matches the installation hole; when the color filter covers the installation hole, the color filter exceeds the installation hole ;or

When the color filter covers the installation hole, the color filter matches the installation hole; when the infrared filter covers the installation hole, the infrared filter exceeds the installation hole ;or

When the infrared filter covers the installation hole, the infrared filter exceeds the installation hole, and when the color filter covers the installation hole, the color filter exceeds the installation hole.

The camera module of the embodiment of the present invention includes:

Substrate;

an image sensor disposed on the substrate; and

In the lens module described in any one of the above embodiments, the lens module is installed on the substrate, the image sensor is accommodated in the lens module, the light hole is opposite to the image sensor, The driving member is used to drive the filter assembly to move so that the filter assembly can be movably installed at the mounting hole, so as to selectively let all the light entering through the light hole pass through or only let Infrared rays among all the rays entering through the light hole pass through and are incident on the image sensor.

In some embodiments, the image sensor includes:

A photosensitive pixel array, the photosensitive pixel array includes a plurality of photosensitive pixels;

The filter unit array covering the photosensitive pixel array, the filter unit array includes a plurality of filter units, each of the filter units includes an infrared filter area and a color filter area, and the infrared filter area covers The photosensitive pixels of the iris recognition pixels constitute iris recognition pixels, and the photosensitive pixels covered by the color filter region constitute color image pixels; and

Control circuit,

The control circuit is used to control the iris recognition pixel to obtain an iris image signal, and is used to control the color image pixel to obtain a color image signal; or

The control circuit is used for controlling the iris recognition pixels to obtain iris image signals, and for controlling the color image pixels and the iris recognition pixels to jointly obtain color image signals.

In some embodiments, the output of the photosensitive pixel covered by the color filter area corresponds to a color pixel value; the output of the photosensitive pixel covered by the infrared filter area corresponds to an infrared pixel value;

When the control circuit controls the color image pixel and the iris recognition pixel to jointly acquire a color image signal, the control circuit is used to subtract the adjacent infrared pixel value from the color pixel value to obtain the The actual pixel value of each color image pixel of the color image.

An electronic device according to an embodiment of the present invention includes:

ontology; and

In the camera module described in any one of the above embodiments, the camera module is installed on the body.

The electronic device, the camera module, and the lens module in the embodiment of the present invention drive the infrared filter to move through the driving part, so that the infrared filter can selectively cover the installation hole or open the installation hole, so that the infrared filter can selectively let the All the light entering through the light hole passes or only the infrared light among all the light entering through the light hole passes.

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

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a cross-sectional view of a lens module in some embodiments of the present invention;

2 is a cross-sectional view of a camera module in some embodiments of the present invention;

3 is a schematic plan view of an electronic device according to some embodiments of the present invention;

4 is a schematic plan view of an image sensor in some embodiments of the present invention;

FIG. 5 is a schematic perspective view of an image sensor in some embodiments of the present invention;

6 is a schematic plan view of an array of filter units in some embodiments of the present invention;

7 is a cross-sectional view of a camera module in some embodiments of the present invention;

Fig. 8 is a schematic diagram of the principle of an optical filter assembly and a driver in some embodiments of the present invention;

9 is a schematic plan view of an array of filter elements in some embodiments of the present invention; and

Fig. 10 is a schematic plan view of an array of filter units in some embodiments of the present invention.

Description of main component symbols:

Image sensor 100, photosensitive pixel array 10, photosensitive pixel 12, iris recognition pixel 122, color image pixel 124, pixel recognition element 1222, filter unit array 20, filter unit 22, filter subunit 221, infrared filter region 222, Infrared filter element 2222, color filter area 224, color filter element 2241, green filter element 2242, blue filter element 2244, red filter element 2246, control circuit 30, lens module 200, mirror holder 40, Mounting hole 42, inner wall 44, lens barrel 50, light hole 52, filter assembly 60, infrared filter 62, color filter 64, bearing plate 61, rotating shaft 63, connecting arm 65, driving part 70, stator 72 , mover 74 , electronic device 300 , camera module 301 , substrate 303 , and body 304 .

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Referring to FIGS. 1 and 2 , the lens module 200 according to the embodiment of the present invention includes a lens base 40 , a lens barrel 50 mounted on the lens base 40 , and a filter assembly 60 . The lens barrel 50 is provided with a light hole 52, and the lens base 40 is provided with a mounting hole 42. The filter assembly 60 includes an infrared filter 62 and a color filter 64. The lens module 200 also includes a The driving member 70 is used for driving the filter assembly 60 to move so as to selectively make the infrared filter 62 or the color filter 64 cover the installation hole 42 .

Specifically, the infrared filter 62 is an infrared pass filter, that is to say, when the driver 70 drives the infrared filter 62 to cover the mounting hole 42, only infrared light can transmit all the light transmitted to the infrared filter 62. Pass through the infrared filter 62. The color filter 64 is a visible light pass filter, that is to say, when the driver 70 drives the color filter 64 to cover the mounting hole 42, all light transmitted to the color filter 64 has only visible light that can pass through the color filter. Light sheet 64.

The lens module 200 of the embodiment of the present invention drives the filter assembly 60 to move through the driving member 70, so as to selectively make the infrared filter 62 cover the installation hole 42, or make the color filter 64 cover the installation hole 42, so that Selectively allow only visible light among all the light entering through the light hole 52 to pass through or only allow infrared light among all the light entering through the light through hole 52 to pass through.

Referring to FIG. 3 , an electronic device 300 according to an embodiment of the present invention includes a body 304 and a camera module 301 , and the camera module 301 is installed on the body 304 . The electronic device 300 includes any one of a mobile phone, a tablet computer, a smart watch, and the like. The embodiments of the present invention are described by taking the electronic device 300 as an example of a mobile phone.

Referring to FIG. 2 , a camera module 301 according to an embodiment of the present invention includes a substrate 303 , an image sensor 100 and a lens module 200 disposed on the substrate 303 .

Please refer to FIG. 1 , a lens module 200 according to an embodiment of the present invention includes a lens base 40 , a lens barrel 50 , a filter assembly 60 and a driver 70 .

The mirror base 40 is mounted on the substrate 303 . The mirror base 40 may define an installation hole 42 , specifically, the mirror base 40 includes an inner wall 44 surrounding the installation hole 42 . The mirror base 40 can be in the form of a columnar structure with a circular ring or a "back shape" in cross section. The mounting hole 42 may be in the shape of a circle, a rectangle, an ellipse or the like.

The lens barrel 50 is mounted on the lens mount 40 . The lens barrel 50 defines a light hole 52 . The lens barrel 50 may be in the form of a columnar structure with a circular or "back-shaped" section.

The filter assembly 60 includes a carrier plate 61 , an infrared filter 62 and a color filter 64 . The infrared filter 62 and the color filter 64 are disposed on the carrier board 61 at intervals. The carrying plate 61 is provided with two carrying holes 612 arranged at intervals, and the infrared filter 62 and the color filter 64 are respectively installed in one carrying hole 612 . The filter assembly 60 can be movably installed at the mounting hole 42, and the plane where the infrared filter 62 and the color filter 64 are located is perpendicular to the optical axis of the light passing hole 52, and the infrared filter 62 and the color filter The moving direction of 64 is perpendicular to the optical axis of the light through hole 52 , and the infrared filter 62 and the color filter 64 can selectively shield the installation hole 42 .

The infrared filter 62 can be circular, rectangular, oval, or a shape matching the mounting hole 42 . The color filter 64 can also be circular, rectangular, oval, or a shape matching the mounting hole 42 . That is to say, when the infrared filter 62 covers the installation hole 42, the infrared filter 62 can match the installation hole 42, and when the color filter 64 covers the installation hole 42, the color filter 64 can match the installation hole 42 .

The driver 70 is installed on the mirror base 40. Specifically, the driver 70 includes a linear motor. The linear motor includes a stator 72 and a mover 74. The stator 72 is installed on the inner wall 44 corresponding to the mounting hole 42. The mover 74 and the carrier plate 61 one end of the connection. The driving member 70 drives the mover 74 to move, and the mover 74 moves to drive the carrying plate 61 to move, so that the infrared filter 62 or the color filter 64 can selectively cover the installation hole 42 . The driver 70 drives the mover 74 to move and can drive the infrared filter 62 and the color filter 64 to move. When the infrared filter 62 covers the mounting hole 42, only the infrared light can enter from the light hole 52. Pass through the infrared filter 62 ; when the color filter 64 covers the installation hole 42 , only visible light can pass through the color filter 64 among all the light entering through the light hole 52 .

Referring to FIG. 4 and FIG. 5 , an image sensor 100 according to an embodiment of the present invention includes a photosensitive pixel array 10 , a filter unit array 20 and a control circuit 30 .

The photosensitive pixel array 10 includes a plurality of photosensitive pixels 12 .

Referring to FIG. 5 and FIG. 6 , the filter unit array 20 covers the photosensitive pixel array 10 . The filter unit array 20 includes a plurality of filter units 22 . Each filter unit 22 includes two infrared filter regions 222 and two color filter regions 224 , and the infrared filter regions 222 and the color filter regions 224 in each filter unit 22 are alternately arranged at intervals. Wherein, the infrared filter region 222 only allows infrared light to pass through and filters out other light (eg, visible light) so that other light cannot pass through. The infrared filter region 222 includes a plurality of infrared filter subunits 2222 . The color filter region 224 only passes visible light and filters out other light (eg, infrared light) so that other light cannot pass through. Specifically, the color filter area 224 includes a plurality of color filter subunits 2241 , and the color filter subunits 2241 may be any one of the green filter subunits 2242 , blue filter subunits 2244 or red filter subunits 2246 . Among them, the green filter subunit 2242 only passes green light and filters other light so that other light cannot pass through, the blue filter subunit 2244 only passes blue light and filters other light so that other light cannot pass through, and the red filter subunit 2246 Pass only red light and filter other light so that no other light can pass. Each infrared filter subunit 2222 and color filter subunit 2241 respectively cover one photosensitive pixel 12, that is to say each infrared filter subunit 2222, green filter subunit 2242, blue filter subunit 2244 and red filter subunit 2246 respectively One photosensitive pixel 12 is covered.

The photosensitive pixels 12 covered by the infrared filter area 222 form the iris recognition pixels 122 , and the photosensitive pixels 12 covered by the color filter area 224 form the color image pixels 124 . In other words, the photosensitive pixels 12 covered by the infrared filter area 222 are called iris recognition pixels 122 , and the photosensitive pixels 12 covered by the color filter area 224 are called color image pixels 124 . The iris recognition pixels 122 are capable of receiving infrared light and generating iris image signals, which include infrared pixel values, brightness values of infrared light, and the like. The color image pixels 124 can receive visible light and generate color image signals, the color image signals include color pixel values, brightness values of colored light, color values, and the like.

Each filter unit 22 in this embodiment covers 2×4 photosensitive pixels 12, specifically, each filter unit 22 includes 2 infrared filter regions 222 and 2 color filter regions 224, and the infrared filter The regions 222 and the color filter regions 224 are alternately arranged at intervals. Wherein, each infrared filter area 222 includes 2×1 color filter subunits 2241 , and each infrared filter area 222 includes 2×1 infrared filter subunits 2222 . That is to say, each filter unit 22 includes 2×2 color filter subunits 2241 distributed in an array and 2×2 infrared filter subunits 2222 distributed in an array. The color filter sub-units 2241 and infrared filter sub-units 2222 in the same row are alternately arranged at intervals. Specifically, the first row of filter units 22 can be respectively red filter sub-units 2246, infrared filter sub-units 2222, green filter sub-units 2242, and infrared filter sub-units 2222, and the second row of filter units 22 can be respectively green Filter subunit 2242 , infrared filter subunit 2222 , blue filter subunit 2244 , infrared filter subunit 2222 .

The photosensitive pixels 12 covered by the infrared filter area 222 constitute the iris recognition pixels 122 , that is, the 2×2 photosensitive pixels 12 covered by the 2×2 infrared filter subunits 2222 are the iris recognition pixels 122 . The output of the 2×2 photosensitive pixels 12 covered by the infrared filter area 222 corresponds to the iris image signal. The photosensitive pixels 12 covered by the color filter area 224 constitute the color image pixels 124 , that is, the 2×2 photosensitive pixels 12 covered by the color filter area 224 are the color image pixels 124 . The output of the photosensitive pixels 12 covered by the color filter area 224 corresponds to a color image signal.

The control circuit 30 is connected to the photosensitive pixel array 10 . The control circuit 30 can be used to control the iris recognition pixels 122 to obtain iris image signals, and to control the color image pixels 124 to obtain color image signals. The iris recognition pixels 122 are capable of receiving infrared light and generating iris image signals, which include infrared pixel values, brightness values of infrared light, and the like. The output of the photosensitive pixels 12 covered by the infrared filter area 222 corresponds to the infrared pixel value, that is, the output of the iris recognition pixel 122 corresponds to the infrared pixel value. The color image pixels 124 can receive visible light and generate color image signals, the color image signals include color pixel values, brightness values of colored light, color values, and the like. The output of the photosensitive pixels 12 covered by the color filter area 224 corresponds to the color pixel value, that is, the color pixel value corresponding to the output of the color image pixel 124 .

The control circuit 30 can also be used to control the iris recognition pixel 122 to obtain an iris image signal, and to control the color image pixel 124 and the iris recognition pixel 122 to jointly obtain a color image signal. When the control circuit 30 controls the color image pixel 124 and the iris recognition pixel 122 to jointly acquire a color image, the control circuit 30 is used to subtract the color pixel value from the adjacent infrared pixel value to obtain the actual pixel value of each color image pixel of the color image .

The lens module 200 of the embodiment of the present invention drives the filter assembly 60 to move through the driving member 70, so as to selectively make the infrared filter 62 cover the installation hole 42, or make the color filter 64 cover the installation hole 42, so that Selectively allow only visible light among all the light rays entering through the light through hole 52 to pass through or only allow infrared light among all the light rays entering through the light through hole 52 to pass through.

The electronic device 300 in the embodiment of the present invention also has the following beneficial effects: First, the filter unit array 20 of the image sensor 100 includes an infrared filter area 222 and a color filter area 224, so that the light entering the iris recognition pixel 122 mainly includes infrared The light, and the light entering the color image pixel 124 mainly includes visible light, so that the image sensor 100 can obtain an iris image signal from the iris recognition pixel 122, and obtain a color image signal from the color image pixel 124; or the image sensor 100 can obtain an iris image signal from the color image pixel 124 and iris recognition pixels 122 to jointly obtain a color image signal, and then the image sensor 100 can realize both iris image acquisition and color image acquisition, avoiding the iris image sensor and the color image sensor at the same time, which not only reduces the cost of the electronic device, but also saves time for setting Other functional units free up space.

Second, the infrared filter regions 222 and the color filter regions 224 in each filter unit 22 are alternately spaced, that is, the infrared filter regions 222 and the color filter regions 224 are close to each other, so that the control circuit 30 is used to The actual pixel value of each color image pixel of the more accurate color image is obtained by subtracting the adjacent infrared pixel value from the color pixel value.

Please refer to Fig. 7 and Fig. 8, in some embodiments, the driver 70 and the filter assembly 60 of the above embodiment can be replaced by: the driver 70 includes a linear motor, the linear motor includes a stator 72 and a mover 74, and the stator 72 is installed on the inner wall 44 of the mirror base 40, the filter assembly 60 also includes a rotating shaft 63 and a connecting arm 65 connected to the bearing plate 61, the mover 74 is connected to the end of the connecting arm 65 away from the bearing plate 61, and the rotating shaft 63 is set Between the bearing plate 61 and the mover 74, the linear motor drives the connecting arm 65 to move to drive the bearing plate 61 to rotate around the rotating shaft 63, so that the infrared filter 62 or the color filter 64 can selectively cover the installation hole 42 .

Specifically, the rotating shaft 63 is installed on the mirror base 40, and the axis of the rotating shaft 63 is parallel to the optical axis of the mounting hole 42. The connecting arm 65 is rotatably installed on the rotating shaft 63 and can rotate around the rotating shaft 63, and connects The connected carrying plate 61 can rotate around the rotating shaft 63 . The mover 74 and the connecting arm 65 are pivotally connected (for example, the mover 74 and the connecting arm 65 can be slidably connected together) or connected together by a universal joint, so that when the connecting arm 65 rotates, the mover 74 and the connecting arm 65 Relative displacement can occur, thereby preventing the mover 74 from interfering with the rotation of the connecting arm 65 . Specifically, when the driving member 70 drives the mover 74 to move, the mover 74 drives the connecting arm 65 to rotate around the rotating shaft 63 , and the connecting arm 65 drives the bearing plate 61 to rotate around the rotating shaft 63 . The filter assembly 60 can selectively make the infrared filter 62 cover the mounting hole 42 under the action of the driver 70, or make the color filter 64 cover the mounting hole 42, so that only the light through hole can be selectively Visible light among all the light entering through the light hole 52 passes through or only infrared light among all the light entering through the light hole 52 passes through.

Please refer to Fig. 7 and Fig. 8, in some embodiments, the driver 70 and the filter assembly 60 of the above embodiment can be replaced by: the driver 70 includes a linear motor, the linear motor includes a stator 72 and a mover 74, and the stator 72 is installed on the inner wall 44 of the mirror base 40, the filter assembly 60 also includes a rotating shaft 63 and a connecting arm 65 connected to the bearing plate 61, the mover 74 is connected to the end of the connecting arm 65 away from the bearing plate 61, and the rotating shaft 63 is set Between the bearing plate 61 and the mover 74, the linear motor drives the connecting arm 65 to move to drive the bearing plate 61 to rotate around the rotating shaft 63, so that the infrared filter 62 or the color filter 64 can selectively cover the installation hole 42 . Specifically, when the driver 70 drives the mover 74 to move, the mover 74 drives the connecting arm 65 to rotate around the rotating shaft 63, and the connecting arm 65 drives the bearing plate 61 to rotate around the rotating shaft 63, so that the The infrared filter 62 or color filter 64 shields the mounting hole 42 . The infrared filter 62 is matched with the mounting hole 42, and the color filter 64 is matched with the mounting hole 42. The distance D1 between the center of the infrared filter 62 and the rotating shaft 63 is the same as that between the center of the color filter 64 and the rotating shaft 63. The distance D2 is the same, that is, the radius of rotation R1 of the center of the infrared filter 62 is the same as the radius of rotation R2 of the center of the color filter 64 . Specifically, if the infrared filter 62 can block the mounting hole 42 , the color filter 64 can be driven by the driving member 70 to rotate to a position corresponding to the mounting hole 42 and cover the mounting hole 42 . The filter assembly 60 can selectively make the infrared filter 62 cover the mounting hole 42 under the action of the driver 70, or make the color filter 64 cover the mounting hole 42, so that only the light through hole can be selectively Visible light among all the light entering through the light hole 52 passes through or only infrared light among all the light entering through the light hole 52 passes through.

In some embodiments, the infrared filter 62 and the color filter 64 of the above-mentioned embodiment shielding the installation hole 42 can be understood as: when the infrared filter 62 shields the installation hole 42, the infrared filter 62 and the installation hole 42 Matching, when the color filter 64 covers the installation hole 42 , the color filter 64 matches the installation hole 42 . Alternatively, when the infrared filter 62 covers the installation hole 42 , the infrared filter 62 matches the installation hole 42 , and when the color filter 64 covers the installation hole 42 , the color filter 64 exceeds the installation hole 42 . Alternatively, when the color filter 64 covers the installation hole 42 , the color filter 64 matches the installation hole 42 , and when the infrared filter 62 covers the installation hole 42 , the infrared filter 62 exceeds the installation hole 42 . Alternatively, when the infrared filter 62 covers the installation hole 42 , the infrared filter 62 exceeds the installation hole 42 , and when the color filter 64 covers the installation hole 42 , the color filter 64 exceeds the installation hole 42 . In this way, both the infrared filter 62 and the color filter 64 can completely cover the installation hole 42 when they are moved to the positions corresponding to the installation hole 42 . The matching referred to in this article means that the shape and size of the two are exactly the same.

In some embodiments, the filter unit 22 in the above embodiments may also be that the filter unit 22 covers 4×2 photosensitive pixels 12 . Specifically, each filter unit 22 includes two infrared filter regions 222 and two color filter regions 224 , and the infrared filter regions 222 and the color filter regions 224 are alternately arranged at intervals. Wherein, each infrared filter area 222 includes 1×2 infrared filter subunits 2222 , and each color filter area 224 includes 1×2 color filter subunits 2241 . That is to say, each filter unit 22 includes 2×2 color filter subunits 2241 distributed in an array and 2×2 infrared filter subunits 2222 distributed in an array. The color filter sub-units 2241 and infrared filter sub-units 2222 in the same column are alternately arranged at intervals. Specifically, the first column of the filter unit 22 can be respectively the red filter subunit 2246, the infrared filter subunit 2222, the green filter subunit 2242, and the infrared filter subunit 2222, and the second column of the filter unit 22 can be respectively green Filter subunit 2242 , infrared filter subunit 2222 , blue filter subunit 2244 , infrared filter subunit 2222 .

Please refer to FIG. 9 , in some embodiments, the structure of the filter unit 22 in the above embodiment can be replaced by: the filter unit 22 includes an infrared filter area 222 and two color filter areas 224, each filter The infrared filter area 222 in the unit 22 is disposed between or on one side of two color filter areas 224 . Each filter unit 22 covers 2×3 photosensitive pixels 12 , specifically, each filter unit 22 includes one infrared filter area 222 and two color filter areas 224 . Each infrared filter area 222 includes 2×1 color filter subunits 2241 , and each infrared filter area 222 includes 2×1 infrared filter subunits 2222 .

A red filter subunit 2222 is arranged near each color filter subunit 2241 in the image sensor 100 provided in this embodiment, thus, the pixel value (color color) of each photosensitive pixel 12 covered by the color filter subunit 2241 Pixel value) can be compensated by the pixel value (infrared pixel value) of the photosensitive pixel 12 covered by the infrared filter sub-unit 2222 to obtain a final and more accurate actual pixel value, which improves the imaging quality.

Specifically, when the infrared filter area 222 of each filter unit 22 is arranged in the middle of two color filter areas 224, the first row of the filter unit 22 can be respectively the red filter sub-unit 2246, the infrared filter sub-unit 2222 , the green filter subunit 2242, the second row of the filter unit 22 may be the green filter subunit 2242, the infrared filter subunit 2222, and the blue filter subunit 2244 respectively.

When the infrared filter area 222 of each filter unit 22 is arranged on one side of the two color filter areas 224, the first row of the filter unit 22 can be respectively a red filter subunit 2246, a green filter subunit 2242, an infrared filter subunit 2242, and an infrared filter unit 2242. Filter subunit 2222, the second row of filter unit 22 can be green filter subunit 2242, blue filter subunit 2244, infrared filter subunit 2222 respectively; or, the first row of filter unit 22 can be respectively infrared filter subunit 2222; The photon unit 2222 , the red filter subunit 2246 , the green filter subunit 2242 , and the second row of the filter unit 22 can be respectively the infrared filter subunit 2222 , the green filter subunit 2242 , and the blue filter subunit 2244 .

In the image sensor 100 provided in this embodiment, every two color filter subunits 2241 share one red filter subunit 2222 so that the color pixel values of the photosensitive pixels 12 are compensated by the infrared pixel values to obtain a final and more accurate actual pixel value, While improving the imaging quality, the space of the pixel unit array 10 and the filter unit array 20 is saved.

Please refer to FIG. 10 , in some embodiments, the filter element array 20 is a Bayer array. The filter unit 22 may include 2×2 filter block units 221 . Each filter block unit 221 includes 2 infrared filter areas 222 and 2 color filter areas 224, and the infrared filter areas 222 and color filter areas 224 are alternately arranged at intervals, and each color filter area 224 includes 2 ×1 color filter sub-unit 2241 , each infrared filter area 222 includes 2×1 infrared filter sub-unit 2222 .

The 2×2 filter block units 221 form a Bayer array. Specifically, the filter unit 22 covers 4×8 photosensitive pixels 12, and the first row of the filter unit 22 can be respectively a red filter subunit 2246, an infrared filter subunit 2222, a red filter subunit 2246, and an infrared filter subunit 2222. , green filter sub-unit 2242, infrared filter sub-unit 2222, green filter sub-unit 2242, infrared filter sub-unit 2222, the second row of filter unit 22 can be respectively red filter sub-unit 2246, infrared filter sub-unit 2222, red filter Photon unit 2246, infrared filter subunit 2222, green filter subunit 2242, infrared filter subunit 2222, green filter subunit 2242, infrared filter subunit 2222, the third row of filter unit 22 can be green filter subunit 2242 respectively , infrared filter subunit 2222, green filter subunit 2242, infrared filter subunit 2222, blue filter subunit 2244, infrared filter subunit 2222, blue filter subunit 2244, infrared filter subunit 2222, filter unit 22 The fourth row can be green filter subunit 2242, infrared filter subunit 2222, green filter subunit 2242, infrared filter subunit 2222, blue filter subunit 2244, infrared filter subunit 2222, blue filter subunit 2244, Infrared filter subunit 2222.

Specifically, the embodiments of the present invention may only satisfy one of the above-mentioned embodiments or satisfy multiple of the above-mentioned embodiments at the same time, that is to say, an embodiment formed by combining one or more of the above-mentioned embodiments also belongs to the protection scope of the embodiments of the present invention. .

In the description of this specification, reference is made to the terms "certain embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples," etc. The description means that a specific 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, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of said features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Although the embodiment of the present invention has been shown and described above, it can be understood that the above embodiment is exemplary and should not be construed as a limitation of the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A lens module, comprising a mirror base, a lens barrel mounted on the mirror base, and an optical filter assembly, the lens barrel is provided with a light-through hole, and the mirror base is provided with a mounting hole, which It is characterized in that the filter assembly includes an infrared filter and a color filter, and the lens module further includes a driving member installed on the mirror base, and the driving member is used to drive the filter The assembly is moved to enable selective shielding of the mounting hole by either the infrared filter or the color filter. 2 . The lens module according to claim 1 , wherein the filter assembly further comprises a bearing plate, and the infrared filter and the color filter are arranged on the bearing plate at intervals. 3 . 3. The lens module according to claim 1, wherein the drive member includes a linear motor, the linear motor includes a stator and a mover, the stator is installed on the inner wall of the mirror holder, and the The mover is connected with the bearing plate, and the mover moves to drive the bearing plate to move, so that the infrared filter or the color filter can selectively cover the installation hole. 4. The lens module according to claim 1, wherein the drive member includes a linear motor, the linear motor includes a stator and a mover, the stator is installed on the inner wall of the mirror holder, and the The optical filter assembly also includes a rotating shaft and a connecting arm connected to the bearing plate, the mover is connected to an end of the connecting arm far away from the bearing plate, and the rotating shaft is arranged between the bearing plate and the moving arm. Between the two parts, the linear motor drives the connecting arm to move the bearing plate to rotate around the shaft, so that the infrared filter or the color filter can be selectively shielded from the installation. hole. 5. The lens module according to claim 4, wherein the infrared filter is matched with the mounting hole, the color filter is matched with the mounting hole, and the infrared filter is matched with the mounting hole. The distance from the center to the rotation axis is the same as the distance from the center of the color filter to the rotation axis. 6. The lens module according to claim 1, wherein when the infrared filter covers the installation hole, the infrared filter matches the installation hole, and the color filter covers When the mounting hole is used, the color filter matches the mounting hole; or When the infrared filter covers the installation hole, the infrared filter matches the installation hole; when the color filter covers the installation hole, the color filter exceeds the installation hole ;or When the color filter covers the installation hole, the color filter matches the installation hole; when the infrared filter covers the installation hole, the infrared filter exceeds the installation hole ;or When the infrared filter covers the installation hole, the infrared filter exceeds the installation hole, and when the color filter covers the installation hole, the color filter exceeds the installation hole. 7. A camera module, characterized in that the camera module comprises: Substrate; an image sensor disposed on the substrate; and The lens module according to any one of claims 1-6, wherein the lens module is installed on the substrate, the image sensor is accommodated in the lens module, and the light through hole and the image sensor On the contrary, the driving member is used to drive the filter assembly to move so that the filter assembly can be movably installed at the installation hole, so as to selectively allow all the light entering from the light-through hole to pass through or Only the infrared light among all the light entering through the light hole is allowed to pass through and enter the image sensor. 8. The camera module according to claim 7, wherein the image sensor comprises: A photosensitive pixel array, the photosensitive pixel array includes a plurality of photosensitive pixels; The filter unit array covering the photosensitive pixel array, the filter unit array includes a plurality of filter units, each of the filter units includes an infrared filter area and a color filter area, and the infrared filter area covers The photosensitive pixels of the iris recognition pixels constitute iris recognition pixels, and the photosensitive pixels covered by the color filter region constitute color image pixels; and Control circuit, The control circuit is used to control the iris recognition pixel to obtain an iris image signal, and is used to control the color image pixel to obtain a color image signal; or The control circuit is used for controlling the iris recognition pixels to obtain iris image signals, and for controlling the color image pixels and the iris recognition pixels to jointly obtain color image signals. 9. The camera module according to claim 8, wherein the output of the photosensitive pixels covered by the color filter area corresponds to a color pixel value; the output of the photosensitive pixels covered by the infrared filter area The output corresponds to the infrared pixel value; When the control circuit controls the color image pixel and the iris recognition pixel to jointly acquire a color image signal, the control circuit is used to subtract the adjacent infrared pixel value from the color pixel value to obtain the The actual pixel value of each color image pixel of the color image. 10. An electronic device, characterized in that it comprises: ontology; and The camera module according to any one of claims 7-9, wherein the camera module is installed on the body.