CN107153314B - Lens module, camera module and electronic device - Google Patents
Lens module, camera module and electronic device Download PDFInfo
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- CN107153314B CN107153314B CN201710527575.2A CN201710527575A CN107153314B CN 107153314 B CN107153314 B CN 107153314B CN 201710527575 A CN201710527575 A CN 201710527575A CN 107153314 B CN107153314 B CN 107153314B
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/006—Filter holders
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- Optics & Photonics (AREA)
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Abstract
The lens module disclosed by the invention comprises a lens base, a lens barrel arranged on the lens base, an infrared filter, a first driving piece arranged on the lens barrel or the lens base, wherein the lens barrel is provided with a light through hole, the lens barrel or the lens base is provided with a mounting hole, and the first driving piece is used for driving the infrared filter to move so as to enable the infrared filter to be movably arranged at the mounting hole, so that all light rays entering from the light through hole can selectively pass through or only infrared light rays in all light rays entering from the light through hole can pass through. The lens module drives the infrared filter to move through the first driving piece, so that the infrared filter can selectively shield the mounting hole or open the mounting hole, and all light rays entering from the light through hole can be selectively enabled to pass through or only infrared light rays entering from the light through hole can pass through. The invention also discloses a camera module and an electronic device.
Description
Technical Field
The invention relates to the technical field of imaging, in particular to a lens module, a camera module and an electronic device.
Background
Generally, iris recognition requires a special iris camera to obtain an iris image, and thus, the existing electronic device needs to be provided with the special iris camera in addition to the visible light camera for capturing color images, which not only increases the cost of the electronic device, but also occupies the space of the electronic device.
Disclosure of Invention
The embodiment of the invention provides a lens module, a camera module and an electronic device.
The lens module comprises a lens base, a lens barrel arranged on the lens base, an infrared filter, a first driving piece arranged on the lens barrel or the lens base and used for driving the infrared filter to move so that the infrared filter can be movably arranged at the mounting hole, and all light rays entering from the light through hole can selectively pass through or only infrared light rays in all light rays entering from the light through hole can pass through.
In some embodiments, the first driving element includes a rotating motor, the rotating motor includes a stator and a rotor, the stator is installed on an inner wall of the lens barrel or the lens base, and an end of the infrared filter is sleeved on the rotor.
In some embodiments, the quantity of first driving piece is a plurality of, infrared filter's quantity is a plurality of, and is a plurality of first driving piece corresponds with a plurality of infrared filter, first driving piece is including rotating the motor, every the rotation motor includes stator and active cell, the stator is installed on the inner wall that the mounting hole corresponds, an end cover of infrared filter is established on the active cell that corresponds first driving piece, and is a plurality of first driving piece is used for driving respectively a plurality of infrared filter removes so that it is a plurality of infrared filter can install at mounting hole department with removing to the selectivity lets follow all light that the light that leads to the entrance pass through or only lets follow infrared in all light that the light that leads to the entrance through passes through.
In some embodiments, the lens module further includes a color filter, a end of the color filter is sleeved on the mover, and the first driving member is configured to drive the infrared filter to move so that the infrared filter can be movably mounted at the mounting hole, and is configured to drive the color filter so that the color filter can be movably mounted at the mounting hole, so as to selectively allow only white light or infrared light of all light entering from the light through hole to pass through.
In some embodiments, one end of the color filter sleeved on the mover and one end of the infrared filter sleeved on the mover are at the same end, and an included angle between the color filter and the infrared filter is greater than or equal to 90 degrees.
In some embodiments, the lens module further includes a color filter movably mounted at the mounting hole, the color filter is offset from the infrared filter in the direction of the optical axis of the lens module, and the first driving member is configured to drive the infrared filter to move so that the infrared filter is movably mounted at the mounting hole, so as to selectively pass all light rays entering from the light-passing hole or only pass infrared light rays of all light rays entering from the light-passing hole; the second driving piece is used for driving the color filter to move so that the color filter can be movably arranged on the mounting hole, and all light rays entering from the light through hole or only white light rays of all light rays entering from the light through hole can selectively pass through the second driving piece.
The camera module of the embodiment of the invention comprises:
a substrate;
an image sensor disposed on the substrate; and
the lens module according to any one of the above embodiments, the lens module is mounted on the substrate, the image sensor is accommodated in the lens module, the light passing hole is opposite to the image sensor, and the first driving member is configured to drive the infrared filter to move so that the infrared filter can be movably mounted at the mounting hole, so that all light rays entering from the light passing hole can selectively pass through or only infrared light rays of all light rays entering from the light passing hole can pass through, and then enter the image sensor.
In some embodiments, the image sensor comprises:
a photosensitive pixel array including a plurality of photosensitive pixels;
the light filtering unit array covers the light sensing pixel array, the light filtering unit array comprises a plurality of light filtering units, each light filtering unit comprises an infrared light filtering area and a color light filtering area, the light sensing pixels covered by the infrared light filtering areas form iris identification pixels, and the light sensing pixels covered by the color light filtering areas form color image pixels; and
a control circuit for controlling the operation of the electronic device,
the control circuit is used for controlling the iris identification pixels to acquire iris image signals and controlling the color image pixels to acquire color image signals; or
The control circuit is used for controlling the iris identification pixels to acquire iris image signals and controlling the color image pixels and the iris identification pixels to acquire color image signals together.
In some embodiments, the output of the photosensitive pixels covered by the color filter region corresponds to color pixel values; 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 pixels and the iris identification pixels to jointly acquire color image signals, the control circuit is used for subtracting the adjacent infrared pixel values from the color pixel values to obtain actual pixel values of all the color image pixels of the color image.
An electronic device according to an embodiment of the present invention includes:
a body; and
the camera module of any one of the above embodiments, wherein the camera module is mounted on the body.
The electronic device, the camera module and the lens module of the embodiment of the invention drive the infrared filter to move through the first driving piece, so that the infrared filter can selectively shield the mounting hole or open the mounting hole, and all light rays entering from the light through hole can selectively pass through or only infrared light rays in all light rays entering from the light through hole can pass through.
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a cross-sectional view of a lens module according to some embodiments of the invention;
FIG. 2 is a cross-sectional view of a camera module according to some embodiments of the invention;
FIG. 3 is a schematic plan view of an electronic device according to some embodiments of the invention;
FIG. 4 is a schematic plan view of an image sensor according to some embodiments of the invention;
FIG. 5 is a schematic perspective view of an image sensor according to some embodiments of the present invention;
FIG. 6 is a schematic plan view of an array of filter elements according to some embodiments of the invention;
FIGS. 7-10 are cross-sectional views of mounting holes of certain embodiments of the present invention;
FIG. 11 is a schematic perspective view of an infrared filter and a color filter according to some embodiments of the invention;
FIG. 12 is a schematic perspective view of an infrared filter and a color filter according to some embodiments of the invention;
FIG. 13 is a cross-sectional view of a lens module according to some embodiments of the invention; and
FIGS. 14-15 are schematic plan views of an array of filter elements according to certain embodiments of the invention;
description of the main element symbols:
the image sensor 100, the photosensitive pixel array 10, the photosensitive pixels 12, the iris recognition pixels 122, the color image pixels 124, the pixel recognition elements 1222, the filter unit array 20, the filter unit 22, the filter subunit 221, the infrared filter area 222, the infrared filter element 2222, the color filter area 224, the color filter element 2241, the green filter element 2242, the blue filter element 2244, the red filter element 2246, the control circuit 30, the lens module 200, the mounting hole 202, the inner wall 204, the lens holder 40, the lens barrel 50, the light passing hole 52, the infrared filter 60, the first driving member 70, the stator 72, the mover 74, the color filter 80, the second driving member 90, the electronic device 300, the camera module 301, the image processor 302, the substrate 303, and the body 304.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1 and 2, a lens module 200 according to an embodiment of the present invention includes a lens base 40, a lens barrel 50 mounted on the lens base 40, an infrared filter 60, and a first driving member 70. The lens barrel 50 is provided with a light-passing hole 52, and the lens base 40 is provided with a mounting hole 202. The first drive member 70 is mounted on the mirror base 40. The first driving member 70 is used for driving the infrared filter 60 to move so that the infrared filter 60 can be movably installed at the installation hole 202 to selectively pass all light rays entering from the light passing hole 52 or only infrared light rays of all light rays entering from the light passing hole 52.
Specifically, the infrared filter 60 is an infrared pass filter, that is, only infrared light transmitted to the infrared filter 60 can pass through the infrared filter 60. All light includes white light (or visible light) and infrared light, among others. The first driving member 70 driving the infrared filter 60 to move so that the infrared filter 60 is movably installed at the installation hole 202 may refer to: firstly, the infrared filter 60 is installed near the installation hole 202 and does not shield the installation hole 202, and the first driving member 70 can drive the infrared filter 60 to move to the installation hole 202 to shield the installation hole 202; or conversely, the infrared filter 60 is installed at the installation hole 202 to shield the installation hole 202, and the first driving member 70 can drive the infrared filter 60 to move away from the installation hole 202 to open the installation hole 202. Secondly, the infrared filter 60 is installed in the installation hole 202 to shield the installation hole 202, and the first driving member 70 can drive the infrared filter 60 to rotate to open the installation hole 202; or conversely, the infrared filter 60 is installed at the installation hole 202 but does not block but opens the installation hole 202, and the first driving member 70 can drive the infrared filter 60 to rotate to enter the installation hole 202 to block the installation hole 202.
The lens module 200 according to the embodiment of the invention drives the infrared filter 60 to move through the first driving member 70, so that the infrared filter 60 can selectively block the mounting hole 202 or open the mounting hole 202, and thus all light rays entering from the light passing hole 52 can selectively pass through or only infrared light rays of all light rays entering from the light passing hole 52 can pass through.
In other embodiments, the mounting hole 202 may be opened on the lens barrel 50, and correspondingly, the first driving member 70 is mounted on the lens barrel 50.
Referring to fig. 3, an electronic device 300 according to an embodiment of the invention includes a main body 304 and a camera module 301, wherein the camera module 301 is mounted on the main body 304. The electronic device 300 includes any one of a mobile phone, a tablet computer, a smart watch, and the like. The embodiment of the invention is illustrated by taking the electronic device 300 as a mobile phone.
Referring to fig. 2, a camera module 301 according to an embodiment of the invention includes a substrate 303, an image sensor 100 disposed on the substrate 303, and a lens module 200.
Referring to fig. 1 and 2, the lens module 200 includes a lens base 40, a lens barrel 50, an infrared filter 60, and a first driving member 70.
The mirror base 40 is mounted on a base plate 303. The mirror base 40 may be formed with a mounting hole 202, and specifically, the mirror base 40 includes an inner wall 204, and the inner wall 204 encloses the mounting hole 202. The lens base 40 can be a cylindrical structure with a circular cross section and a shape like a Chinese character 'hui'. The mounting hole 202 may be circular, rectangular, oval, etc.
The lens barrel 50 is mounted on the lens holder 40. The lens barrel 50 is opened with a light passing hole 52. The lens barrel 50 may have a cylindrical structure with a circular cross section and a shape like a Chinese character 'hui'.
The infrared filter 60 is movably mounted on the mounting hole 202, which in some embodiments may be understood as: the infrared filter 60 is installed at the installation hole 202 and can be rotated at the installation hole 202 so that the infrared filter 60 can block or unblock the installation hole 202. The infrared filter 60 is an infrared pass filter, that is, only infrared light transmitted to the infrared filter 60 can pass through the infrared filter 60. The ir filter 60 may be circular, rectangular, oval, or other shape that matches the mounting hole 202.
The first driving member 70 is mounted on the mirror base 40 corresponding to the mounting hole 202. Specifically, the first driving member 70 includes a rotary motor including a stator 72 and a mover 74. The stator 72 is mounted to the inner wall 204 of the mirror mount 40 corresponding to the mounting hole 202. One end of the infrared filter 60 is sleeved on the mover 74. The first driving member 70 can drive the mover 74 to rotate, and the mover 74 rotates to drive the infrared filter 60 to rotate. When the first driving member 70 drives the infrared filter 60 to block the installation hole 202, only the infrared ray of all the rays entering from the light passing hole 52 can pass through the infrared filter 60. When the first driving member 70 drives the infrared filter 60 to open the mounting hole 202, all the light entering from the light passing hole 52 can pass through the infrared filter 60.
Referring to fig. 2, the image sensor 100 is accommodated in the lens module 200, and specifically, the image sensor 100 is mounted on the lens holder 40, and the image sensor 100 is opposite to the light passing hole 52. The image sensor 100 can obtain both an iris image signal from infrared light transmitted to the image sensor 100 and a color image signal from white light among all light transmitted to the image sensor 100.
When the first driving member 70 drives the infrared filter 60 to completely block the mounting hole 202, only the infrared ray of all the rays entering from the light passing hole 52 passes through the infrared filter 60 and is incident on the image sensor 100, and the image sensor 100 can obtain an iris image signal from the infrared ray irradiated on the image sensor 100. When the first driving member 70 drives the infrared filter 60 to open the mounting hole 202, all the light entering from the light passing hole 52 can pass through the mounting hole 202 and be incident on the image sensor 100, and the image sensor 100 can obtain a color image signal from white light among all the light irradiated on the image sensor 100.
Referring to fig. 4 and 5, an image sensor 100 according to an embodiment of the invention includes a photosensitive pixel array 10, a filter unit array 20, and a control circuit 30.
The array of photosensitive pixels 10 includes a plurality of photosensitive pixels 12.
Referring to fig. 5 and 6, the filter array 20 covers the photosensitive pixel array 10. The filter cell array 20 includes a plurality of filter cells 22. Each of the filter units 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 of the filter units 22 are alternately disposed at intervals. Wherein the infrared filter area 222 only passes infrared light and filters out other light (e.g., visible light) so that the other light cannot pass, the infrared filter area 222 includes a plurality of infrared filter subunits 2222. The color filter region 224 passes only visible light and filters out other light (e.g., infrared light) so that the other light cannot pass. Specifically, the color filter area 224 includes a plurality of color filter subunits 2241, and the color filter subunit 2241 may be any one of a green filter subunit 2242, a blue filter subunit 2244, or a red filter subunit 2246. Among them, the green filter subunit 2242 passes only green light and filters other light so that other light cannot pass, the blue filter subunit 2244 passes only blue light and filters other light so that other light cannot pass, and the red filter subunit 2246 passes only red light and filters other light so that other light cannot pass. Each of the infrared light-filtering sub-units 2222 and the color light-filtering sub-units 2241 covers one of the photosensitive pixels 12, that is, each of the infrared light-filtering sub-units 2222, the green light-filtering sub-units 2242, the blue light-filtering sub-units 2244 and the red light-filtering sub-units 2246 covers one of the photosensitive pixels 12.
The photosensitive pixels 12 covered by the infrared filter region 222 constitute the iris recognition pixels 122, and the photosensitive pixels 12 covered by the color filter region 224 constitute the color image pixels 124. In other words, the photosensitive pixels 12 covered by the infrared filter region 222 are referred to as iris recognition pixels 122, and the photosensitive pixels 12 covered by the color filter region 224 are referred to as color image pixels 124. The iris recognition pixels 122 are capable of receiving infrared light and generating iris image signals including infrared pixel values, luminance values of the infrared light, and the like. Color image pixels 124 are capable of receiving visible light and producing color image signals that include color pixel values, luminance values of colored light, color values, and the like.
Each of the filter units 22 of the present embodiment covers 2 × 4 photosensitive pixels 12, specifically, each of the filter units 22 includes 2 infrared filter regions 222 and 2 color filter regions 224, and the infrared filter regions 222 and the color filter regions 224 are alternately disposed at intervals. Each color filter region 224 includes 2 × 1 color filter subunits 2241, and each infrared filter region 222 includes 2 × 1 infrared filter subunits 2222. That is, each of the filter units 22 includes 2 × 2 color filter subunits 2241 arranged in an array and 2 × 2 infrared filter subunits 2222 arranged in an array. The color filter subunits 2241 and the infrared filter subunits 2222 in the same row are alternately arranged at intervals. Specifically, the first row of the filtering unit 22 may be a red filtering subunit 2246, an infrared filtering subunit 2222, a green filtering subunit 2242 and an infrared filtering subunit 2222, respectively, and the second row of the filtering unit 22 may be a green filtering subunit 2242, an infrared filtering subunit 2222, a blue filtering subunit 2244 and an infrared filtering subunit 2222, respectively.
The photosensitive pixels 12 covered by the infrared filter area 222 constitute the iris recognition pixels 122, that is, 2 × 2 photosensitive pixels 12 covered by the 2 × 2 infrared filter subunits 2222 are the iris recognition pixels 122. The output of 2 × 2 photosensitive pixels 12 covered by the infrared filter region 222 corresponds to an iris image signal. The photosensitive pixels 12 covered by the color filter region 224 form the color image pixels 124, that is, the 2 × 2 photosensitive pixels 12 covered by the color filter region 224 are the color image pixels 124. The output of the photosensitive pixels 12 covered by the color filter regions 224 corresponds to color image signals.
The control circuit 30 is connected to the array of photosensitive pixels 10. The control circuit 30 may be used to control the iris recognition pixels 122 to acquire iris image signals and to control the color image pixels 124 to acquire color image signals. The iris recognition pixels 122 are capable of receiving infrared light and generating iris image signals including infrared pixel values, luminance values of the infrared light, and the like. The output of the photosensitive pixels 12 covered by the infrared filter region 222 corresponds to the infrared pixel value, that is, the output of the iris identification pixels 122 corresponds to the infrared pixel value. Color image pixels 124 are capable of receiving visible light and producing color image signals that include color pixel values, luminance values of colored light, color values, and the like. The output of the photosensitive pixels 12 covered by the color filter regions 224 corresponds to color pixel values, i.e., the output of the color image pixels 124 corresponds to color pixel values.
The control circuit 30 may also be used to control the iris recognition pixels 122 to acquire iris image signals, and to control the color image pixels 124 to acquire color image signals in conjunction with the iris recognition pixels 122. When the control circuit 30 controls the color image pixels 124 and the iris identification pixels 122 to collectively acquire a color image, the control circuit 30 is configured to subtract the adjacent infrared pixel values from the color pixel values to obtain actual pixel values of the color image pixels of the color image.
The electronic device 300, the camera module 301 and the lens module 200 of the embodiment of the invention drive the infrared filter 60 to move through the first driving member 70, so that the infrared filter 60 can selectively shield the mounting hole 202 or open the mounting hole 202, and thus all light rays entering from the light passing hole 52 can selectively pass through or only infrared light rays of all light rays entering from the light passing hole 52 can pass through.
The electronic device 300 of the embodiment of the invention also has the following beneficial effects: first, the filter unit array 20 of the image sensor 100 includes an infrared filter region 222 and a color filter region 224, so that light entering the iris recognition pixels 122 mainly includes infrared light and light entering the color image pixels 124 mainly includes visible light, so that the image sensor 100 can obtain iris image signals from the iris recognition pixels 122 and color image signals from the color image pixels 124; or the image sensor 100 can obtain color image signals from the color image pixels 124 and the iris identification pixels 122 together, and then the image sensor 100 can realize both iris image acquisition and color image acquisition, thereby avoiding the need for the iris image sensor and the color image sensor at the same time, not only reducing the cost of the electronic device, but also freeing up space for setting other functional units.
Second, the infrared filter regions 222 and the color filter regions 224 in each filter unit 22 are alternately disposed at intervals, 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 subtract the color pixel values from the adjacent infrared pixel values to obtain the actual pixel values of the color image pixels of the more accurate color image.
In some embodiments, the mounting hole 202 of the above embodiments may be formed on the lens barrel 50 instead of the lens holder 40, and specifically, the lens barrel 50 includes an inner wall 204 corresponding to the mounting hole 202, and the inner wall 204 surrounds the mounting hole 202. Of course, the mounting hole 202 may be formed by the lens holder 40 and the lens barrel 50 together.
Referring to fig. 7 to 10, in some embodiments, the number of the first driving members 70 of the above embodiments may also be multiple, the number of the infrared filters 60 is multiple, and the multiple first driving members 70 correspond to the multiple infrared filters 60. The first driving member 70 includes rotary motors each including a stator 72 and a mover 74, the stator 72 being mounted on the inner wall 204 corresponding to the mounting hole 202. One end of the infrared filter 60 is sleeved on the corresponding mover 74 of the first driving member 70. The plurality of first driving members 70 are configured to respectively drive the plurality of infrared filters 60 to move so that the plurality of infrared filters 60 can be movably installed at the installation hole 202 to selectively pass all light rays entering from the light passing hole 52 or only pass infrared light rays of all light rays entering from the light passing hole 52.
Specifically, the plurality of infrared filters 60 can block the mounting hole 202, and only infrared light can be incident on the image sensor 100 through the infrared filters 60 after all light entering from the light passing holes 52 is filtered by the infrared filters 60. At least a portion of each ir filter 60 can be coupled to the mover 74 of a first actuator 70 mounted on the inner wall 204, so that the first actuator 70 can drive the ir filter 60 to rotate.
The number of the infrared filter 60 and the first driving member 70 may be two, the stator 72 of the first driving member 70 may be mounted on any inner wall 204 adjacent to the infrared filter 60, and the mover 74 is connected to a side of the infrared filter 60 close to the first driving member 70.
Specifically, taking the infrared filter 60 and the mounting hole 202 as an example, the inner wall 204 corresponding to the mounting hole 202 includes a first inner wall 2041, a second inner wall 2042, a third inner wall 2043 and a fourth inner wall 2044 which are connected end to end, the first inner wall 2041 is opposite to the third inner wall 2043, and the second inner wall 2042 is opposite to the fourth inner wall 2044.
Referring to fig. 7, a stator 72 of a first driving member 70 (hereinafter, referred to as a left first driving member 70) is disposed inside the fourth inner wall 2044, and a mover 74 is disposed on the third inner wall 2043; a stator 72 of another first driver 70 (hereinafter, referred to as a right first driver 70) is disposed in the fourth inner wall 2044, and a mover 74 is disposed on the first inner wall 2041. Correspondingly, one end of one infrared filter 60 (hereinafter referred to as the left infrared filter 60) is sleeved on the mover 74 of the left first driving member 70, and one end of the other infrared filter 60 (hereinafter referred to as the right infrared filter 60) is sleeved on the mover 74 of the right first driving member 70. When the mover 74 of the left first driving member 70 rotates, the left infrared filter 60 is driven to rotate to open or shield the left portion of the mounting hole 202; when the mover 74 of the right first driving member 70 rotates, the right infrared filter 60 is driven to rotate, so as to open or shield the right portion of the mounting hole 202; when the mover 74 of the left first driving member 70 rotates and the mover 74 of the right first driving member 70 rotates simultaneously, the left ir filter 60 and the right ir filter 60 rotate and can be cooperated to completely open or completely shield the mounting hole 202.
Referring to fig. 8, a stator 72 of a first driving member 70 (hereinafter, referred to as a left first driving member 70) is disposed inside the third inner wall 2043, and a mover 74 is disposed on the second inner wall 2042; a stator 72 of another first driver 70 (hereinafter, referred to as a right first driver 70) is disposed in the first inner wall 2041, and a mover 74 is disposed on the second inner wall 2042. Correspondingly, one end of one infrared filter 60 (hereinafter referred to as the left infrared filter 60) is sleeved on the mover 74 of the left first driving member 70, and one end of the other infrared filter 60 (hereinafter referred to as the right infrared filter 60) is sleeved on the mover 74 of the right first driving member 70. When the mover 74 of the left first driving member 70 rotates, the left infrared filter 60 is driven to rotate to open or shield the left portion of the mounting hole 202; when the mover 74 of the right first driving member 70 rotates, the right infrared filter 60 is driven to rotate, so as to open or shield the right portion of the mounting hole 202; when the mover 74 of the left first driving member 70 rotates and the mover 74 of the right first driving member 70 rotates simultaneously, the left ir filter 60 and the right ir filter 60 rotate and can be cooperated to completely open or completely shield the mounting hole 202.
Referring to fig. 9, a stator 72 of a first driving member 70 (hereinafter, referred to as a left first driving member 70) is disposed inside the third inner wall 2043, and a mover 74 is disposed on the fourth inner wall 2044; a stator 72 of another first driver 70 (hereinafter, referred to as a right first driver 70) is disposed in the first inner wall 2041, and a mover 74 is disposed on the fourth inner wall 2044. Correspondingly, one end of one infrared filter 60 (hereinafter referred to as the left infrared filter 60) is sleeved on the mover 74 of the left first driving member 70, and one end of the other infrared filter 60 (hereinafter referred to as the right infrared filter 60) is sleeved on the mover 74 of the right first driving member 70. When the mover 74 of the left first driving member 70 rotates, the left infrared filter 60 is driven to rotate to open or shield the left portion of the mounting hole 202; when the mover 74 of the right first driving member 70 rotates, the right infrared filter 60 is driven to rotate, so as to open or shield the right portion of the mounting hole 202; when the mover 74 of the left first driving member 70 rotates and the mover 74 of the right first driving member 70 rotates simultaneously, the left ir filter 60 and the right ir filter 60 rotate and can be cooperated to completely open or completely shield the mounting hole 202.
Referring to fig. 10, the number of the infrared filter 60 and the first driving member 70 may be three, the first driving member 70 may be installed on any inner wall 204 adjacent to the infrared filter 60, and the mover 74 is connected to the side of the infrared filter 60 close to the first driving member 70. Specifically, the stator 72 of one first driver 70 (hereinafter, left first driver 70) is disposed inside the fourth inner wall 2044, and the mover 74 is disposed on the third inner wall 2043; a stator 72 of another first driver 70 (hereinafter, referred to as a right first driver 70) is disposed in the fourth inner wall 2044, and a mover 74 is disposed on the first inner wall 2041; a stator 72 of a further first driver 70 (hereinafter referred to as an intermediate first driver 70) is arranged in the second inner wall 2042, and a mover 74 is arranged on the second inner wall 2042. Correspondingly, one end of one infrared filter 60 (hereinafter referred to as the left infrared filter 60) is sleeved on the mover 74 of the left first driving member 70, one end of another infrared filter 60 (hereinafter referred to as the right infrared filter 60) is sleeved on the mover 74 of the right first driving member 70, and one end of another infrared filter 60 (hereinafter referred to as the middle infrared filter 60) is sleeved on the mover 74 of the middle first driving member 70. When the mover 74 of the left first driving member 70 rotates, the left infrared filter 60 is driven to rotate to open or shield the left portion of the mounting hole 202; when the mover 74 of the right first driving member 70 rotates, the right infrared filter 60 is driven to rotate, so as to open or shield the right portion of the mounting hole 202; when the mover 74 of the middle first driving member 70 rotates, the middle infrared filter 60 is driven to rotate so as to open or shield the middle part of the mounting hole 202; when the mover 74 of the left first driving member 70, the mover 74 of the right first driving member 70 and the mover 74 of the middle first driving member 70 rotate simultaneously, the left infrared filter 60, the right infrared filter 60 and the middle infrared filter 60 rotate, and the three can be matched to completely open or completely shield the mounting hole 202.
The number of the infrared filters 60 and the number of the first driving members 70 are plural, so that the force and power of each first driving member 70 for driving the infrared filter 60 to rotate can be reduced, and the first driving member 70 with smaller power can be selected.
Referring to fig. 11 and 12, in some embodiments, the lens module 200 further includes a color filter 80, one end of the color filter 80 is sleeved on the mover 74, the first driving member 70 is used for driving the infrared filter 60 to move so that the infrared filter 60 can be movably mounted on the mounting hole 202, and is used for driving the color filter 80 so that the color filter 80 can be movably mounted at the mounting hole 202, so as to selectively allow only white light or infrared light of all light entering from the light passing hole 52 to pass through.
The first driving member 70 can simultaneously drive the infrared filter 60 and the color filter 80 to move, that is, the mover 74 of the first driving member 70 can simultaneously drive the infrared filter 60 and the color filter 80, so that the first driving member 70 can simultaneously drive the infrared filter 60 and the color filter 80 to move.
For example, referring to fig. 11, the ir filter 60 and the color filter 80 each include a sleeve, the sleeves of the ir filter 60 and the color filter 80 are mounted on the mover 74 of the first driving member 70, and the sleeves of the ir filter 60 and the color filter 80 are staggered.
When the mover 74 of the first driving member 70 rotates, the mover 74 drives the infrared filter 60 to rotate through the sleeve of the infrared filter 60 mounted on the mover 74, and drives the color filter 80 to rotate simultaneously through the sleeve of the color filter 80 mounted on the mover 74.
When the first driving member 70 drives the infrared filter 60 to block the mounting hole 202 and simultaneously drives the color filter 80 to open the mounting hole 202, only infrared light of all light entering from the light passing hole 52 passes through the mounting hole 202. When the first driving member 70 drives the color filter 80 to block the mounting hole 202 and simultaneously drives the infrared filter 60 to open the mounting hole 202, only white light of all light rays entering from the light passing hole 52 passes through.
Specifically, the number of the color filters 80, the number of the infrared filters 60, and the number of the first drivers 70 may be plural, and the number of the color filters 80, the number of the infrared filters 60, and the number of the first drivers 70 are the same, and the corresponding color filter 80 and the corresponding infrared filter 60 are driven by the corresponding one of the first drivers 70.
The first driving member 70 of the present embodiment can simultaneously drive the infrared filter 60 and the color filter 80 to rotate, so as to reduce the number of motors required to drive the color filter 80 to rotate, and save the cost of the electronic device 300. The camera module 301 includes an image sensor 100 capable of obtaining an iris image signal according to infrared light transmitted to the image sensor 100 and obtaining a color image signal according to white light transmitted to the image sensor 100. The camera module 301 can obtain a better iris image and a better color image.
Referring to fig. 12, in some embodiments, the lens module 200 further includes a color filter 80, one end of the color filter 80 is sleeved on the mover 74, and the first driving member 70 is used for driving the infrared filter 60 to move so that the infrared filter 60 can be movably mounted on the mounting hole 202, and for driving the color filter 80 so that the color filter 80 can be movably mounted on the mounting hole 202, so as to selectively allow only white light or infrared light of all light entering from the light passing hole 52 to pass through. One end of the color filter 80 sleeved on the mover 74 and one end of the infrared filter 60 sleeved on the mover 74 are at the same end, and an included angle between the color filter 80 and the infrared filter 60 is greater than or equal to 90 degrees.
For example, referring to fig. 12, one end of the color filter 80 sleeved on the mover 74 and one end of the infrared filter 60 sleeved on the mover 74 are the same, and the common end is a shaft sleeve, and the shaft sleeve is sleeved on the mover 74. When the mover 74 of the first driving member 70 rotates, the mover 74 drives the infrared filter 60 and the color filter 80 to rotate simultaneously through the bushing installed on the mover 74, so that one of the infrared filter 60 and the color filter 80 selectively covers the installation hole 202.
When the first driving member 70 drives the infrared filter 60 to block the mounting hole 202 and simultaneously drives the color filter 80 to open the mounting hole 202, only infrared light of all light entering from the light passing hole 52 passes through the mounting hole 202, and at this time, the lens module 200 can be used for capturing iris images. When the first driving member 70 drives the color filter 80 to block the mounting hole 202 and simultaneously drives the infrared filter 60 to open the mounting hole 202, only white light of all light rays entering from the light passing hole 52 passes through.
The included angle between the color filter 80 and the infrared filter 60 is greater than or equal to 90 degrees, so that the installation hole 202 can be completely shielded by the infrared filter 60, and the installation hole 202 can be completely opened by the color filter 80. The included angle between the color filter 80 and the infrared filter 60 is greater than or equal to 90 degrees, so that the infrared filter 60 can completely open the mounting hole 202 while the color filter 80 completely covers the mounting hole 202, and at this time, the lens module 200 can be used for shooting a color image.
Referring to fig. 13, in some embodiments, the lens module 200 further includes a color filter 80 and a second driving member 90, the color filter 80 is movably mounted on the mounting hole 202, the color filter 80 is offset from the infrared filter 60 in the direction of the optical axis of the lens module 200, and the first driving member 70 is configured to drive the infrared filter 60 to move so that the infrared filter 60 is movably mounted on the mounting hole 202, so as to selectively pass all light entering from the light passing hole 52 or only pass infrared light of all light entering from the light passing hole 52. The second driving member 90 is used for driving the color filter 80 to move so that the color filter 80 can be movably mounted on the mounting hole 202 to selectively pass all light rays entering from the light passing hole 52 or only pass white light of all light rays entering from the light passing hole 52.
Specifically, the first driving member 70 and the second driving member 90 are both mounted on the inner wall 204 corresponding to the mounting hole 202, one end of the ir filter 60 is connected to the first driving member 70, one end of the color filter 80 is connected to the second driving member 90, and the mounting position of the first driving member 70 is staggered with the mounting position of the second driving member 90 (in the direction of the optical axis of the lens module 200), so that the end of the ir filter 60 mounted on the first driving member 70 is staggered with the end of the color filter 80 mounted on the second driving member 90 (in the direction of the optical axis of the lens module 200). The color filter 80 is offset from the infrared filter 60, so that the interference of the color filter 80 when the infrared filter 60 rotates under the driving of the first driving member 70 and the interference of the infrared filter 60 when the color filter 80 rotates under the driving of the second driving member 90 can be avoided.
Referring to fig. 13, in the optical axis direction of the lens module 200, if the distance D between the infrared filter 60 and the color filter 80 is smaller than the rotation radius R1 of the infrared filter 60 and the rotation radius R2 of the color filter 80, when the first driving member 70 drives the infrared filter 60 to open the mounting hole 202, the first driving member 70 drives the infrared filter 60 to rotate towards the side away from the color filter 80, so as to prevent the rotation of the infrared filter 60 from being interfered by the color filter 80. When the second driving member 90 drives the color filter 80 to open the mounting hole 202, the second driving member 90 drives the color filter 80 to rotate toward the side away from the infrared filter 60, so as to prevent the rotation of the color filter 80 from being interfered by the infrared filter 60. In the direction of the optical axis of the lens module 200, if the distance D between the infrared filter 60 and the color filter 80 is greater than the rotation radius R1 of the infrared filter 60 and the rotation radius R2 of the color filter 80. The rotation direction of the first driving member 70 for driving the infrared filter 60 is not limited, and the rotation direction of the second driving member 90 for driving the color filter 80 is not limited.
In some embodiments, the filter unit 22 of the above embodiments may be such that the filter unit 22 covers 4 × 2 photosensitive pixels 12. Specifically, each of the filter units 22 includes 2 infrared filter regions 222 and 2 color filter regions 224, and the infrared filter regions 222 and the color filter regions 224 are alternately disposed. Each of the infrared filter regions 222 includes 1 × 2 infrared filter subunits 2222, and each of the color filter regions 224 includes 1 × 2 color filter subunits 2241. That is, each of the filter units 22 includes 2 × 2 color filter subunits 2241 arranged in an array and 2 × 2 infrared filter subunits 2222 arranged in an array. The color filter subunits 2241 and the infrared filter subunits 2222 in the same column are alternately arranged at intervals. Specifically, the first column of the filtering unit 22 may be a red filtering subunit 2246, an infrared filtering subunit 2222, a green filtering subunit 2242 and an infrared filtering subunit 2222, respectively, and the second column of the filtering unit 22 may be a green filtering subunit 2242, an infrared filtering subunit 2222, a blue filtering subunit 2244 and an infrared filtering subunit 2222, respectively.
Referring to fig. 14, in some embodiments, the structure of the filter unit 22 of the above embodiments may be replaced with: the filter unit 22 includes an infrared filter area 222 and two color filter areas 224, and the infrared filter area 222 in each filter unit 22 is disposed between the two color filter areas 224 or on one side. Each filter unit 22 covers 2 × 3 photosensitive pixels 12, and specifically, each filter unit 22 includes 1 infrared filter region 222 and 2 color filter regions 224. Each color filter region 224 includes 2 × 1 color filter subunits 2241, and each infrared filter region 222 includes 2 × 1 infrared filter subunits 2222.
In the image sensor 100 provided in this embodiment, an infrared filter subunit 2222 is disposed near each color filter subunit 2241, so that the pixel value (color pixel value) of each photosensitive pixel 12 covered by the color filter subunit 2241 can be compensated by the pixel value (infrared pixel value) of the photosensitive pixel 12 covered by the infrared filter subunit 2222, so as to obtain a final accurate actual pixel value, thereby improving the imaging quality.
Specifically, when the infrared filter area 222 of each filter unit 22 is disposed between the two color filter areas 224, the first row of the filter units 22 can be a red filter subunit 2246, an infrared filter subunit 2222 and a green filter subunit 2242, respectively, and the second row of the filter units 22 can be a green filter subunit 2242, an infrared filter subunit 2222 and a blue filter subunit 2244, respectively.
When the infrared filter area 222 of each filter unit 22 is disposed at 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 and an infrared filter subunit 2222, and the second row of the filter unit 22 can be respectively a green filter subunit 2242, a blue filter subunit 2244 and an infrared filter subunit 2222; or, the first row of the filtering unit 22 may be the infrared filtering subunit 2222, the red filtering subunit 2246, and the green filtering subunit 2242, respectively, and the second row of the filtering unit 22 may be the infrared filtering subunit 2222, the green filtering subunit 2242, and the blue filtering subunit 2244, respectively.
In the image sensor 100 provided in this embodiment, each two color filter subunits 2241 share one infrared filter subunit 2222, so that the color pixel values of the photosensitive pixels 12 are compensated by the infrared pixel values to obtain final accurate actual pixel values, and the space of the pixel unit array 10 and the filter unit array 20 is saved while the imaging quality is improved.
Referring to fig. 15, in some embodiments, the filter unit 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 ir filter regions 222 and 2 color filter regions 224, and the ir filter regions 222 and the color filter regions 224 are alternately arranged, each color filter region 224 includes 2 × 1 color filter subunits 2241, and each ir filter region 222 includes 2 × 1 ir filter subunits 2222.
The 2 × 2 filter block units 221 are bayer array. Specifically, the filtering unit 22 covers 4 × 8 photosensitive pixels 12, the first row of the filtering unit 22 may be a red filtering subunit 2246, an infrared filtering subunit 2222, a green filtering subunit 2242, and an infrared filtering subunit 2222, respectively, the second row of the filtering unit 22 may be a red filtering subunit 2246, an infrared filtering subunit 2222, a green filtering subunit 2242, and an infrared filtering subunit 2222, respectively, the third row of the filtering unit 22 may be a green filtering subunit 2242, an infrared filtering subunit 2222, a blue filtering subunit 2244, an infrared filtering subunit 2222, a green filtering subunit 2222222222, respectively, The blue filter subunit 2244, the infrared filter subunit 2222, and the fourth row of the filter unit 22 may be a green filter subunit 2242, an infrared filter subunit 2222, a blue filter subunit 2244, and an infrared filter subunit 2222, respectively. Specifically, the embodiments of the present invention may satisfy only one of the above embodiments or a plurality of the above embodiments at the same time, that is, embodiments in which one or more of the above embodiments are combined also belong to the scope of the embodiments of the present invention.
In the description of the specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention, which is defined by the claims and their equivalents.
Claims (8)
1. A lens module comprises a lens base, a lens barrel and infrared filters, wherein the lens barrel is installed on the lens base, a light through hole is formed in the lens barrel, and a mounting hole is formed in the lens barrel or the lens base; the first driving pieces are used for respectively driving the infrared filters to move so that the infrared filters can be movably arranged at the mounting holes to completely open or completely shield the mounting holes, and all light rays entering from the light through holes can be selectively passed through or only infrared light rays in all light rays entering from the light through holes can be passed through;
the first driving pieces comprise rotating motors, each rotating motor comprises a stator and a rotor, the stators are installed on the inner walls corresponding to the installation holes, and one end of each infrared filter is sleeved on the corresponding rotor of the corresponding first driving piece;
the plurality of infrared filters comprise first infrared filters and second infrared filters, the plurality of first driving pieces comprise first infrared filter driving pieces corresponding to the first infrared filters and second infrared filter driving pieces corresponding to the second infrared filters, and when the rotor of the first infrared filter driving piece rotates, the first infrared filter is driven to rotate so as to open or shield corresponding parts of the mounting holes; when the rotor of the second infrared filter driving piece rotates, the second infrared filter is driven to rotate so as to open or shield the corresponding part of the mounting hole; when the rotor of the first infrared filter driving part rotates and the rotor of the second infrared filter driving part rotates, the first infrared filter and the second infrared filter rotate to completely open or completely shield the mounting hole.
2. The lens module as claimed in claim 1, further comprising a color filter, wherein a end of the color filter is sleeved on the mover, and the first driving member is configured to drive the infrared filter to move so that the infrared filter is movably mounted at the mounting hole, and to drive the color filter so that the color filter is movably mounted at the mounting hole, so as to selectively pass only white light or infrared light of all light entering from the light passing hole.
3. The lens module as claimed in claim 2, wherein an end of the color filter disposed on the mover and an end of the infrared filter disposed on the mover are disposed at the same end, and an included angle between the color filter and the infrared filter is greater than or equal to 90 degrees.
4. The lens module as claimed in claim 1, further comprising a color filter movably mounted at the mounting hole, the color filter being offset from the infrared filter in the direction of the optical axis of the lens module, and a second driving member for driving the infrared filter to move so that the infrared filter is movably mounted at the mounting hole to selectively pass all light rays entering from the light passing hole or only infrared light rays of all light rays entering from the light passing hole; the second driving piece is used for driving the color filter to move so that the color filter can be movably arranged on the mounting hole, and all light rays entering from the light through hole or only white light rays of all light rays entering from the light through hole can selectively pass through the second driving piece.
5. A camera module, comprising:
a substrate;
an image sensor disposed on the substrate; and
the lens module as set forth in any one of claims 1 to 4, wherein the lens module is mounted on the base plate, the image sensor is accommodated in the lens module, the light passing hole is opposite to the image sensor, and the first driving member is configured to drive the infrared filter to move so that the infrared filter is movably mounted at the mounting hole to selectively pass all light rays entering from the light passing hole or only infrared light rays of all light rays entering from the light passing hole to be incident on the image sensor.
6. The camera module of claim 5, wherein the image sensor comprises:
a photosensitive pixel array including a plurality of photosensitive pixels;
the light filtering unit array covers the light sensing pixel array, the light filtering unit array comprises a plurality of light filtering units, each light filtering unit comprises an infrared light filtering area and two color light filtering areas, each light filtering unit covers 2 x 3 light sensing pixels, each color light filtering area comprises 2 x 1 color light filtering sub-units, each infrared light filtering area comprises 2 x 1 infrared light filtering sub-units, each infrared light filtering sub-unit and each color light filtering sub-unit respectively cover one light sensing pixel, the light sensing pixels covered by the infrared light filtering areas form iris identification pixels, and the light sensing pixels covered by the color light filtering areas form color image pixels; and
a control circuit for controlling the operation of the electronic device,
the control circuit is used for controlling the iris identification pixels to acquire iris image signals and controlling the color image pixels to acquire color image signals; or
The control circuit is used for controlling the iris identification pixels to acquire iris image signals and controlling the color image pixels and the iris identification pixels to acquire color image signals together.
7. The camera module of claim 6, wherein the outputs of the photosensitive pixels covered by the color filter regions correspond to color pixel values; 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 pixels and the iris identification pixels to jointly acquire color image signals, the control circuit is used for subtracting the adjacent infrared pixel values from the color pixel values to obtain actual pixel values of all the color image pixels of the color image.
8. An electronic device, comprising:
a body; and
the camera module of any one of claims 5-7, mounted on the body.
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| CN107728280A (en) * | 2017-09-30 | 2018-02-23 | 广东欧珀移动通信有限公司 | Filtering apparatus, imaging sensor and imaging modules |
| CN107515503A (en) * | 2017-09-30 | 2017-12-26 | 广东欧珀移动通信有限公司 | Optical filter, camera lens module and imaging modules |
| CN107608157A (en) * | 2017-09-30 | 2018-01-19 | 广东欧珀移动通信有限公司 | Optical filter, camera lens module and imaging modules |
| CN107703595A (en) * | 2017-09-30 | 2018-02-16 | 广东欧珀移动通信有限公司 | Optical filter, camera lens module and imaging modules |
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