CN208334779U - A kind of more switching device of optical fiber and the imaging device with it - Google Patents

A kind of more switching device of optical fiber and the imaging device with it Download PDF

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Publication number
CN208334779U
CN208334779U CN201820959520.9U CN201820959520U CN208334779U CN 208334779 U CN208334779 U CN 208334779U CN 201820959520 U CN201820959520 U CN 201820959520U CN 208334779 U CN208334779 U CN 208334779U
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optical filter
blade
switching device
optical
optical fiber
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CN201820959520.9U
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桑汤庆
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Hangzhou Hikvision Digital Technology Co Ltd
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Hangzhou Hikvision Digital Technology Co Ltd
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Abstract

The utility model discloses a kind of more switching device of optical fiber, more switching device of optical fiber include: pedestal, with light hole;With multiple optical filter blades, each optical filter blade is circumferentially arranged centered on the light hole, and each optical filter blade has optical filter mounting hole;Wherein, the optical filter blade is motion driving mechanism can set on the base in a manner of plane motion, the optical filter blade to be switched in initial position and optical center position, at the optical center position, the optical filter mounting hole on the optical filter blade aligns the optical filter blade with the light hole.The utility model is switched by way of plane motion uses required optical filter blade, this is conducive to the space for saving optical filter blade, it include the Miniaturization Design of pedestal conducive to more switching device of optical fiber, it is not take up the inner space of imaging device, but also can satisfy the application of different scenes.

Description

A kind of more switching device of optical fiber and the imaging device with it
Technical field
The utility model relates to video camera parts technical fields, more particularly to a kind of more switching device of optical fiber and tool There is its imaging device.
Background technique
More switching device of optical fiber (may also be referred to as " more optical-filter switchers ") include a variety of optical filters, each filter Mating plate can be filtered the light of corresponding wave band.According to actual demands such as environment, imagings, more switching device of optical fiber are utilized Optical filter is automatically switched to use, the input of signal light can be reinforced in this way, reduces the influence of veiling glare, then the picture shot is more clear Clear, imaging effect is more preferable.
Such as: in safety-security area, security monitoring video camera video monitoring requires work for whole day 24 hours, in order to adapt to ambient light illumination Light and shade variation, security monitoring video camera adjusts imaging mode by using different optical filter.Specifically, in daylight abundance When, can select, which can filter out infrared light, prevents the optical filter of image color cast.When night dark, for infrared For video camera, the brightness at night is relatively low, needs infrared light filling at this time, is switched to white-black pattern, can cut optical filter at this time It changes to AR piece (sheet glass of plating anti-reflection film), the thickness and IR piece (sheet glass of plating infrared cut coating) of AR piece are identical, the two Refractive index is also identical.Also such as: encountering monitoring scene has strong light or needs to eliminate the scene of polarised light, then needing using inclined The piece that shakes reduces the influence of strong reflection in environment.For another example: when encountering haze weather or serious dust, needing to select The optical filter of infrared light is crossed, such security monitoring video camera still can effectively work in haze weather.
Security monitoring video camera requires extreme high reliability, and it is high that the switching device of optical filter needs to adapt to high temperature low temperature, high temperature Environment, the structural requirements such as wet, vibration are close.In order to adapt to the size of video camera inner space, more switching device of optical fiber requirements Miniaturization.And current more switching device of optical fiber switch multiple optical filters using rotation mode, this mode determines The overall structure of more switching device of optical fiber is bigger than normal.
Thus, it is desirable to have a kind of technical solution come overcome or at least mitigate in the drawbacks described above of the prior art at least one It is a.
Utility model content
The purpose of this utility model is to provide a kind of more switching device of optical fiber to overcome or at least mitigate the prior art At least one of drawbacks described above.
To achieve the above object, the utility model provides a kind of more switching device of optical fiber, more optical filter switching dresses Setting includes: pedestal, with light hole;With multiple optical filter blades, each optical filter blade is centered on the light hole Circumferential setting, each optical filter blade have optical filter mounting hole;Wherein, the optical filter blade passes through movement driving machine Structure in a manner of plane motion can set on the base, by the optical filter blade in initial position and optical center position Switching, the optical filter mounting hole and institute of the optical filter blade at the optical center position, on the optical filter blade Light hole is stated to align.
Further, the optical filter blade is set on the base in a manner of plane and straight line sliding.
Further, the optical filter blade is equipped with first sliding groove, is fixedly installed positioning column on the pedestal, described First sliding groove is slidably matched in the mode being sleeved on outside the positioning column with the positioning column.
Further, the motion driving mechanism has connecting pin and power output end, wherein the connecting pin is to rotate Mode is connected to the pedestal, and the power output end is connected to the optical filter blade.
Further, the motion driving mechanism includes: current coil, and with conductor terminal, the current coil is set In on pedestal;Magnet rotor closes on the side of the current coil, sets in a rotating manner on the base;And swing Arm, one end are connected in a fixed manner to the magnet rotor, power output end described in the other end.
Further, the optical filter blade is equipped with second sliding slot, and the second sliding slot is to be sleeved on the power output Mode outside end is slidably connected with the power output end.
Further, the pedestal, which is equipped with, is enclosed the criss-cross blade slide slot for setting and being formed, the leaf by four pieces of L-shaped baffles Piece slide slot has center and centered on the center and towards at the beginning of the opposite or perpendicular outwardly directed blade in direction Beginning position area;The quantity of each optical filter blade is four;The light hole be located at the blade slide slot it is described in The motion driving mechanism of heart district, each corresponding drive connection of optical filter blade is located at the blade slide slot One blade initial position area;More switching device of optical fiber further include cover board, and the cover board is in cross, and suitability Ground is placed on the blade slide slot.
Further, the optical filter blade have rectangular plate body, the length extending direction of the rectangular plate body and its The direction that extends outwardly in the blade initial position area at place is identical, the width extending direction of rectangular plate body and its where The direction that extends outwardly in blade initial position area is perpendicular;
One broadside of the optical filter mounting hole close to the rectangular plate body is arranged, and the optical filter mounting hole closes on In the center, another broadside of the rectangular plate body has been disposed proximate to second sliding slot, the extension side of the second sliding slot To parallel with the broadside extending direction of the rectangular plate body;The second sliding slot is to be sleeved on the dynamic of the motion driving mechanism Mode outside power output end is slidably connected with the power output end;It is sliding that one long side of the rectangular plate body has been disposed proximate to first Slot, the extending direction of the first sliding groove are parallel with the long side extending direction of the rectangular plate body;Fixation is set on the pedestal It is equipped with positioning column, the first sliding groove is slidably matched in the mode being sleeved on outside the positioning column with the positioning column;It is described rectangular Another long side of shape plate body is provided with the gap for accommodating the motion driving mechanism, the width which closes on from the second sliding slot Side is that starting point extends towards optical filter mounting hole direction, and the length that gap extends is not more than the long side length of the rectangular plate body The difference of degree and the diameter of the optical filter mounting hole.
Further, it is additionally provided with cover board on the pedestal, the color of the pedestal and cover board is black.
The utility model also provides a kind of imaging device, and the imaging device includes sensor and camera lens, and the imaging is set Standby further includes more switching device of optical fiber as described above, and more switching device of optical fiber are arranged in the sensor and described Between camera lens, the center of the light hole of more switching device of optical fiber and the photosurface center of the sensor and the camera lens Optical axis be on center line.
The utility model is switched by way of plane motion using required optical filter blade, this is conducive to save filter The space of mating plate blade includes the Miniaturization Design of pedestal conducive to more switching device of optical fiber, is not take up imaging device Inner space, but also can satisfy the application of different scenes.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of more switching device of optical fiber in the utility model embodiment;
Fig. 2 is the structural schematic diagram of the pedestal in more switching device of optical fiber shown in FIG. 1;
Fig. 3 to Fig. 6 is the course of work schematic diagram of optical filter blade shown in Fig. 2;
Fig. 7 is the use state diagram of more switching device of optical fiber shown in FIG. 1.
Appended drawing reference:
Specific embodiment
In the accompanying drawings, same or similar element is indicated using same or similar label or there is same or like function Element.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " perpendicular in the description of the present invention, Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is orientation based on the figure or position Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as to scope of protection of the utility model Limitation.
As shown in Figures 1 to 6, more switching device of optical fiber provided by the present embodiment include pedestal 1 and multiple optical filters Blade 2, in which:
Pedestal 1 has light hole 11, and the aperture of light hole 11 can be determined according to the target surface size of sensor.Each filter Mating plate blade 2 is circumferentially arranged centered on light hole 11, and each optical filter blade 2 has optical filter mounting hole 21.Wherein, it filters Piece blade 2 is motion driving mechanism 3 can be located on pedestal 1 in a manner of plane motion, by the optical filter blade 2 first Beginning position and optical center position switching.Filter of the optical filter blade 2 at the optical center position, on the optical filter blade 2 Mating plate mounting hole 21 aligns with light hole 11, imaging device at this time by or be used the filter that the optical filter blade 2 provides Light function works.When optical filter blade 2 is in initial position, imaging device at this time is not used the optical filter blade 2 and mentions The filtering functions of confession.When optical filter blade 2 switches between the initial position and optical center position, it is necessary first to will own Optical filter blade 2 be fully retracted into the initial position, then need to optical filter blade 2 to be used slide into optical center The position that position, i.e. the optical filter mounting hole 21 of pedestal 1 and light hole 11 align, can prevent from interfering in this way.The present embodiment Switched by way of plane motion using required optical filter blade 2, the movement that this is conducive to save optical filter blade 2 is empty Between, include the Miniaturization Design of pedestal 1 conducive to more switching device of optical fiber, is not take up the inner space of imaging device, but also It can satisfy the application of different scenes.
In one embodiment, optical filter blade 2 is located on pedestal 1 in a manner of plane and straight line sliding, passes through sliding Continuously adjusting for optical filter blade 2 may be implemented in mode.Other than the mode of sliding, the side of Plane Rotation can also be used Formula realizes that still, the mode of rotation is slided compared to plane and straight line, and moving region is bigger, the movement provided in this way for pedestal 1 The area in region will be bigger.Therefore, the mode of the sliding of plane and straight line provided by the present embodiment is more conducive to save optical filter blade 2 Space, include the Miniaturization Design of pedestal 1 conducive to more switching device of optical fiber, the inside for being not take up imaging device is empty Between.
In one embodiment, optical filter blade 2 is equipped with first sliding groove 22, is fixedly installed positioning column 12 on pedestal 1, First sliding groove 22 is slidably matched in the mode being sleeved on outside positioning column 12 with the positioning column 12.By positioning column 12, can incite somebody to action During the optical filter blade 2 is moved to optical center position from initial position, other optical filter blades 2 are not interfered with Switching.
In one embodiment, motion driving mechanism 3 has connecting pin 31 and power output end 32, wherein connecting pin 31 It is connected to pedestal 1 with rotating manner, power output end 32 is connected to optical filter blade 2.
In one embodiment, optical filter blade 2 is equipped with second sliding slot 23, and second sliding slot 23 is defeated to be sleeved on the power Mode outside outlet 32 is slidably connected with the power output end 32.
In one embodiment, motion driving mechanism 3 provided by the present embodiment is simple to operation by electromagnetic drive, at This is low.Motion driving mechanism 3 includes current coil 33, magnet rotor 34 and swing arm 35, in which: current coil 33 has conducting wire Terminal, current coil 33 are set on pedestal 1.Magnet rotor 34 closes on the side of current coil 33, is located at bottom in a rotating manner On seat 1.One end of swing arm 35 is connected in a fixed manner to magnet rotor 34, the other end power output end of swing arm 35 32, magnet rotor 34 drives optical filter blade 2 to be toggled along preset path by driving swing arm 35.
The present embodiment can by change current coil 33 in size of current or direction come change magnet rotor 34 generate magnetic Property attraction or repulsive force, swing arm 35 is rotated clockwise or counterclockwise around magnet rotor 34, to drive power output end 32 rotate around magnet rotor 34.
In conjunction with Fig. 3 to Fig. 6, illustrate that optical filter blade 2 is being moved to optical center position from initial position and will filter Piece blade 2 is moved to the whole process of the initial position from optical center position, and specific details are as follows:
As shown in figure 3, step 1, all optical filter blades 2 are fully retracted into the initial position, it is shown in fig. 1 Optical filter blade 2 is in corresponding initial position, the initial position of power output end 32 at this time in optical filter blade 2 When positioned at the middle part of second sliding slot 23;
As shown in Figures 4 to 6, step 2, swing arm 35 drive power output end 32 to slide from the middle part of second sliding slot 23 To one end of second sliding slot 23, optical filter blade 2 is moved to optical filter mounting hole 21 thereon from initial position and is led to described Unthreaded hole 11 aligns;
Step 3, when replacement is using other optical filter blades 2, swing arm 35 drives power output end 32 from second sliding slot 23 one end slides into the middle part of second sliding slot 23, and optical filter blade 2 is returned back to the initial position, return step one.
In one embodiment, referring to FIG. 2, the quantity of each optical filter blade 2 is four, each optical filter blade 2 Optical filter mounting hole 21 be packed into a tablet filter 6.Such as: by setting up an office glue groove in the bore edges of optical filter mounting hole 21, lead to Cross the fixed optical filter 6 of mode for dispensing glue.Consider to need the lens edge light all standing of big target surface sensor, general scenario Under, the diameter of optical filter 6 needs the aperture than light hole 11 big.The thickness of each piece of optical filter 6 is identical, can be selected according to different demands Select different optical filters.Such as: common white day uses IR optical filter (being on one side infrared cut coating, be on one side anti-reflection film), and infrared section Only.Also such as: common night or haze weather use AR optical filter (two-sided anti-reflection film), cooperate infrared lamp light filling.For another example: receiving Take at mouth and entrance using PL optical filter (polarised light cut film) as other scenes for needing to eliminate polarised light, reduces Strong reflection enters camera in environment, promotes the picture quality on daytime.For another example: recognition of face is needed using narrow band filter, Isolation interference light reduces interference information through signal light, and the specific central wavelength of narrow band filter is true according to user's actual need It is fixed.It is, of course, also possible to select other optical filters, the light damping plate (dim light 50%75% of different dim light ratios according to other demands 20% etc.) different ambient brightness is adapted to, overexposure is prevented.
Pedestal 1, which is equipped with, encloses the criss-cross blade slide slot for setting and being formed, blade slide slot tool by four pieces of L-shaped baffles 4 There is center and centered on the center and towards opposite or perpendicular direction outwardly directed blade initial position area.It is logical The blade slide slot formed is crossed, the rectilinear path of optical filter blade 2 is constrained, keeps handoff procedure more stable.Light hole 11 is located at The motion driving mechanism 3 of the center of the blade slide slot, the corresponding drive connection of each optical filter blade 2 is located at One blade initial position area of the blade slide slot.That is, blade initial position area corresponds to optical filter The initial position of blade 2.
As shown in Figure 1, more switching device of optical fiber further include cover board 5, cover board 5 is in cross, and suitability cover On the blade slide slot.Specifically, the mounting post 13 on cover board 5 and pedestal 1 is passed through using screw, it can be by cover board 5 It is fixedly attached on pedestal 1.The color of pedestal 1 and cover board 5 is black.Black can weaken the reflection of light, reduce veiling glare.
As shown in figure 4, in one embodiment, optical filter blade 2 has rectangular plate body, the length of the rectangular plate body Extending direction X is identical as the direction that extends outwardly in blade initial position area where it, and the width of rectangular plate body extends Direction Y and the direction that extends outwardly in the blade initial position area where it are perpendicular.
One broadside 2a of optical filter mounting hole 21 close to the rectangular plate body is arranged, and optical filter mounting hole 21 is close in The center.Another broadside 2b of the rectangular plate body has been disposed proximate to second sliding slot 23, the extension side of second sliding slot 23 To parallel with broadside 2a, 2b extending direction of the rectangular plate body.Second sliding slot 23 is to be sleeved on the dynamic of motion driving mechanism 3 Mode outside power output end 32 is slidably connected with the power output end 32.One long side 2c of the rectangular plate body has been disposed proximate to First sliding groove 22, the extending direction of first sliding groove 22 are parallel with the long side 2c extending direction of the rectangular plate body.It is solid on pedestal 1 Surely it is provided with positioning column 12, first sliding groove 22 is slidably matched in the mode being sleeved on outside positioning column 12 with the positioning column 12.It is described Another long side 2d of rectangular plate body is provided with the gap 24 of accommodating motion driving mechanism 3, which faces from second sliding slot 23 Close broadside 2b is that starting point extends towards 21 direction of optical filter mounting hole, and the length M that gap 24 extends is not more than the rectangular slab The difference of the diameter D of the length N and optical filter mounting hole 21 of long side 2c, 2d of body.
As shown in fig. 7, the utility model also provides a kind of imaging device, the imaging device includes sensor 6, camera lens 7 And more switching device of optical fiber 8 as described in the various embodiments described above, wherein camera lens 7 is suitable for fixed-focus and zoom zoom.More filters Mating plate switching device 8 is arranged between sensor 6 and camera lens 7, the center of the light hole 11 of more switching device of optical fiber 8 and sensing The photosurface center of device 6 and the optical axis of camera lens 7 are on a center line.Sensor 6 can be CCD or CMOS, Ke Yijin The photographing element of the colored camera shooting of row, the target surface of sensor 6 is different, the hole of the light hole 11 of corresponding more switching device of optical fiber 8 Diameter is of different sizes.The pore size of the light hole 11 of more switching device of optical fiber 8 of the present embodiment is adjustable, therefore is applicable to The sensor and camera lens of different target surfaces.
Finally it is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than it is limited System.Those skilled in the art should understand that: it is possible to modify the technical solutions described in the foregoing embodiments, or Person's equivalent replacement of some of the technical features;These are modified or replaceed, and do not make the essence of corresponding technical solution de- Spirit and scope from various embodiments of the utility model technical solution.

Claims (10)

1. a kind of more switching device of optical fiber characterized by comprising
Pedestal (1), with light hole (11);With
Multiple optical filter blades (2), each optical filter blade (2) is circumferentially arranged centered on the light hole (11), each The optical filter blade (2) has optical filter mounting hole (21);
Wherein, the optical filter blade (2) is motion driving mechanism (3) can be located at the pedestal in a manner of plane motion (1) on, the optical filter blade (2) is switched in initial position and optical center position, the optical filter blade (2) is in institute When stating optical center position, the optical filter mounting hole (21) and the light hole (11) on the optical filter blade (2) are opposite Together.
2. more switching device of optical fiber as described in claim 1, which is characterized in that the optical filter blade (2) is straight with plane The mode of line sliding is located on the pedestal (1).
3. more switching device of optical fiber as claimed in claim 2, which is characterized in that the optical filter blade (2) is equipped with the One sliding slot (22) is fixedly installed positioning column (12) on the pedestal (1), and the first sliding groove (22) is to be sleeved on the positioning The mode of column (12) outside is slidably matched with the positioning column (12).
4. more switching device of optical fiber as claimed any one in claims 1 to 3, which is characterized in that the movement driving machine Structure (3) has connecting pin (31) and power output end (32), wherein the connecting pin (31) is connected to the bottom with rotating manner Seat (1), the power output end (32) are connected to the optical filter blade (2).
5. more switching device of optical fiber as claimed in claim 4, which is characterized in that the motion driving mechanism (3) includes:
Current coil (33), with conductor terminal, the current coil (33) is set on pedestal (1);
Magnet rotor (34) closes on the side of the current coil (33), is located on the pedestal (1) in a rotating manner; With
Swing arm (35), one end are connected in a fixed manner to the magnet rotor (34), power output end described in the other end (32)。
6. more switching device of optical fiber as claimed in claim 5, which is characterized in that the optical filter blade (2) is equipped with second Sliding slot (23), the second sliding slot (23) in a manner of being sleeved on the power output end (32) outside with the power output end (32) It is slidably connected.
7. more switching device of optical fiber as described in claim 1, which is characterized in that the pedestal (1) is equipped with L-shaped by four pieces Baffle (4) encloses the criss-cross blade slide slot for setting and being formed, which, which has center and with the center, is The heart and towards opposite or perpendicular direction outwardly directed blade initial position area;
The quantity of each optical filter blade (2) is four;
The light hole (11) is located at the center of the blade slide slot, and each optical filter blade (2) is right with it The motion driving mechanism (3) that should be drivingly connected is located at a blade initial position area of the blade slide slot;
More switching device of optical fiber further include cover board (5), and the cover board (5) is in cross, and suitability be placed on it is described On blade slide slot.
8. more switching device of optical fiber as claimed in claim 7, which is characterized in that the optical filter blade (2) has rectangular Shape plate body, the direction phase that extends outwardly of the length extending direction of the rectangular plate body and the blade initial position area where it Together, the width extending direction of rectangular plate body and the direction that extends outwardly in the blade initial position area where it are perpendicular;
One broadside of the optical filter mounting hole (21) close to the rectangular plate body is arranged, and the optical filter mounting hole (21) It is close in the center, another broadside of the rectangular plate body has been disposed proximate to second sliding slot (23), the second sliding slot (23) extending direction is parallel with the broadside extending direction of the rectangular plate body;The second sliding slot (23) is described to be sleeved on The mode of the power output end (32) of motion driving mechanism (3) outside is slidably connected with the power output end (32);The rectangle One long side of plate body has been disposed proximate to first sliding groove (22), the extending direction of the first sliding groove (22) and the rectangular plate body Long side extending direction it is parallel;It is fixedly installed positioning column (12) on the pedestal (1), the first sliding groove (22) is to be sleeved on The mode of the positioning column (12) outside is slidably matched with the positioning column (12);Another long side of the rectangular plate body is provided with appearance The gap (24) of the motion driving mechanism (3) is set, the broadside which closes on from the second sliding slot (23) is starting point Extend towards optical filter mounting hole (21) direction, the length that the gap (24) extends is not more than the length of the rectangular plate body The difference of the diameter of edge lengths and the optical filter mounting hole (21).
9. more switching device of optical fiber as described in claim 1, which is characterized in that be additionally provided with cover board on the pedestal (1) (5), the color of the pedestal (1) and cover board (5) is black.
10. a kind of imaging device, including sensor (6) and camera lens (7), which is characterized in that further include as appointed in claim 1-9 More switching device of optical fiber (8) described in one, more switching device of optical fiber (8) are arranged in the sensor (6) and institute It states between camera lens (7), the center of the light hole (11) of more switching device of optical fiber (8) is photosensitive with the sensor (6) The optical axis of face center and the camera lens (7) is on a center line.
CN201820959520.9U 2018-06-21 2018-06-21 A kind of more switching device of optical fiber and the imaging device with it Active CN208334779U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109886240A (en) * 2019-03-01 2019-06-14 厦门狄耐克智能科技股份有限公司 A kind of building talkback gateway machine face identification mechanism
CN111314594A (en) * 2020-03-19 2020-06-19 闻泰通讯股份有限公司 Camera module, control method and device, electronic equipment and storage medium
CN112683798A (en) * 2020-12-14 2021-04-20 长春长光辰谱科技有限公司 Identification and identification system based on hyperspectral imaging camera

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109886240A (en) * 2019-03-01 2019-06-14 厦门狄耐克智能科技股份有限公司 A kind of building talkback gateway machine face identification mechanism
CN111314594A (en) * 2020-03-19 2020-06-19 闻泰通讯股份有限公司 Camera module, control method and device, electronic equipment and storage medium
WO2021184905A1 (en) * 2020-03-19 2021-09-23 闻泰科技(深圳)有限公司 Camera module, control method and apparatus, electronic device, and storage medium
CN111314594B (en) * 2020-03-19 2021-11-12 闻泰通讯股份有限公司 Camera module, control method and device, electronic equipment and storage medium
CN112683798A (en) * 2020-12-14 2021-04-20 长春长光辰谱科技有限公司 Identification and identification system based on hyperspectral imaging camera

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