CN104793458B - Multi-cam module focusing method and its system under a kind of environment based on near-infrared - Google Patents
Multi-cam module focusing method and its system under a kind of environment based on near-infrared Download PDFInfo
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- CN104793458B CN104793458B CN201410024629.XA CN201410024629A CN104793458B CN 104793458 B CN104793458 B CN 104793458B CN 201410024629 A CN201410024629 A CN 201410024629A CN 104793458 B CN104793458 B CN 104793458B
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Abstract
The focus adjustment method and its system of a kind of multi-cam mould group under the environment based on near-infrared, the focus adjustment method include the following steps: after infrared light reaches test mark version through being reflected into each camera of the multi-cam mould group；Focus operations are carried out to the camera by focusing handwheel；And it sends each camera acquired image information to analysis center and is handled, and determine whether to continue next step focus operations according to processing result or determine that the multi-cam mould group is unqualified.This method can not only greatly reduce the cost of manufacture of test equipment, simplify focusing mode, dedicated focusing tooling of arranging in pairs or groups again, reduce the probability of damage of p-wire, while improving production probability, in addition software cooperates, can eliminate the matching difference between two camera lenses.
Description
Technical field
The present invention relates to a kind of focus adjustment method of camera module and its systems, in particular to a kind of based under infrared environmental
Multi-cam mould group focus adjustment method and its system.
Background technique
Camera module is mounted on mobile phone, computer, TV, monitoring device or other digital equipments, to believe for image
The acquisition of breath.Camera module is generally by the components structure such as eyeglass, lens barrel, lens mount, sensitive chip, resistance, capacitor and circuit board
At.Eyeglass is mounted in lens barrel, and lens barrel is spun together by screw thread and lens mount, spins down adjusting camera shooting by the way that lens barrel is screwed on
The focal length of head.Before camera module factory, require to focus to it.When focusing, it is common practice to according to chip at
It as principle, is transferred on computer after making sensitive chip obtain image data using illumination, cooperates test journey by computer
The image-forming information of sensitive chip is finally shown as in the visible image information reflection to computer display screen of human eye by the use of sequence.
When focusing cannot reach the standard of setting, determine that camera module is unqualified.
More universal in industry at present is all single-lens mould group, using focusing under CCM board planar light source.Specifically,
Traditional focus adjustment method uses source of parallel light using mark version projective techniques, i.e. light source, and light is in parallel after transmission-type test mark version
Face is cast out, and is marked version across test and is reached the feeling chip of camera module, camera module feels each of chip
A position all receives identical intensity of illumination, then according to the image of Computer display to determine whether accommodating to ideal effect
Fruit.
However, present cam device, such as body-sensing camera device, television camera device etc. can be equipped with
Two or more cameras, to be assembled into multi-cam mould group.That is, being adopted using two or more imaging sensors
Collect image information.For example, can go out scheme simultaneously by two wide-angle tiny lens, and make when working using double image sensor
Use infrared imagery technique.In this way, this multi-cam mould group is with regard to being not suitable for focusing using traditional mark version projective techniques.
Specifically, being focused using traditional focus adjustment method to multi-cam mould group such as dual camera mould group, it is following to generate
Defect:
(1) it focuses on CCM board, it may appear that the phenomenon that test mark version can not be full of in test pictures, that is to say, that
Because two cameras are arranged apart from one another by ground and mark version towards test, the directional light across test mark version can not reach two
The test picture of the imaging sensor of a camera, camera each in this way is only able to display partial test mark version；
(2) when dual camera works at the same time state, 120 ° or more wide-angle camera actual imaging areas are single-lens mould
2 times of group；Therefore the planar light source of large area need to be used, it is too big for volume production and production cost load；
(3) because using dual camera, when two camera collection image information, can inevitably be had differences, tradition focusing
There is no the measures being compared and treated for the difference between multi-cam in method；
(4) each camera requires to focus, so after the completion of quickcam image focusing, need by focus control from this
It removes, is then fitted on another camera again to another quickcam image focusing, such focus operations will become on a camera
It obtains complicated；
(5) infrared imaging effect of traditional transmission-type test mark version is poor.
Summary of the invention
The main purpose of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, wherein the focus adjustment method is suitable for being focused in real time for multiple cameras of the multi-cam mould group
Calibration.
Another object of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, the light of mid-infrared light source enter each camera after reaching test mark version after reflecting, are thus not required to
The Infrared Plane light source of large area is wanted, production cost is reduced.
Another object of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, wherein the test mark version described in this way is each described because the test mark version is used to reflect the light of infrared light supply
It can be full of in the test pictures of camera, to improve focusing accuracy.
Another object of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, wherein the fixed plate lower surface of mark plate rack is arranged in the test mark version, and the mark plate rack further includes setting
Multiple horizontal and vertical fixing ribs in the fixed plate upper surface, to prevent the fixed plate bending deformation, to provide flat
Focusing measuring accuracy is improved on whole surface.
Another object of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, wherein each camera is equipped with corresponding focusing tool, so as to described take the photograph for each simultaneously
As head is focused, to improve focusing efficiency.
Another object of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, p-wire is wherein configured in focusing tool, the multi-cam mould group is plugged using pull mode, thus
Reduce the spoilage of the p-wire, and can guarantee the p-wire interface can rapidly with the multi-cam
The connector of mould group is powered.
Another object of the present invention is to provide a kind of focus adjustment methods of the multi-cam mould group under environment based on near-infrared
And its system, wherein constantly the focusing parameter of multiple cameras is compared by special-purpose software in focussing process,
Data judge that the multi-cam mould group is unqualified when differing predetermined extent, so that same mould group is solved, each camera shooting
Matching difference between head.
To achieve the above objectives, the present invention provides a kind of focusing side of the multi-cam mould group under the environment based on near-infrared
Method, the multi-cam mould group include multiple cameras, which is characterized in that described method includes following steps:
(a) infrared light, which reaches, tests after mark version through being reflected into each camera of the multi-cam mould group；
(b) focus operations are carried out to the camera by focusing handwheel；And
(c) it sends each camera acquired image information to analysis center to be handled, and according to processing
Whether result judgement continues next step focus operations or determines that the multi-cam mould group is unqualified.
An example according to the present invention repeats above-mentioned steps (b) and step (c) in the above-mentioned methods, until adjusting
Coke is completed.
An example according to the present invention, in the above-mentioned methods, the focus adjustment method carry out in focusing camera bellows, to avoid
The interference of veiling glare further comprises the steps of: one or more infrared lights by being arranged in the focusing camera bellows in the step (a)
Source issues infrared light towards test mark version.
An example according to the present invention further comprises the steps of: test mark version being fixed on mark version in the above-mentioned methods
The bottom surface of the fixed plate of frame, so that test mark version is arranged towards the infrared light supply.
An example according to the present invention is further comprised the steps of: by multiple along orthogonal directions in the above-mentioned methods
The reinforced frame of the fixing rib composition of extension prevents the fixed plate bending deformation, so that the fixed plate be made to provide smooth bottom
Face.
An example according to the present invention, in the above-mentioned methods, in the step (b), each camera is equipped with
There is a corresponding focusing handwheel, to be able to simultaneously carry out the focus operations to multiple cameras.
An example according to the present invention before focus operations progress, further comprises the steps of: in the above-mentioned methods
The multi-cam mould group is detachably secured to focusing tool, the multi-cam mould group is communicably connected by p-wire
It is connected to the analysis center.
An example according to the present invention further comprises the steps of: in the above-mentioned methods and is installed on each focusing handwheel
In the focusing hole location of the focusing handwheel fixed plate of the focusing tool.
An example according to the present invention is further comprised the steps of: and is filled by the display of the analysis center in the above-mentioned methods
It sets, in real time and at the same time ground shows the test result of each camera.
An example according to the present invention is further comprised the steps of: the test knot of each camera in the above-mentioned methods
Fruit is compared, when each camera is directed to the difference degree of the test result of the same area of the test mark version one
When preset range, determine that the multi-cam module focusing is qualified.
An example according to the present invention further comprises the steps of: the focusing for each camera in the above-mentioned methods
Parameter is compared, and determines focusing the result is that unqualified when differing 5 or more.
An example according to the present invention is further comprised the steps of: the infrared light supply and the focusing in the above-mentioned methods
Jig is installed on fixed bottom plate, and the fixed bottom plate is arranged in the focusing camera bellows.
An example according to the present invention, in the above-mentioned methods, the infrared light supply is infrared LED light source, and four
The infrared light supply is respectively arranged at the quadrangle of the fixed bottom plate, and the fixed bottom plate is arranged in substantially in the focusing tool
Central area.
An example according to the present invention further comprises the steps of: in the above-mentioned methods and slideably pushes the focusing tool
Sliding locating piece, the connector of the multi-cam mould group is docked or is separated with the interface of the p-wire, wherein institute
It states multi-cam mould group and is removably installed in the sliding locating piece.
An example according to the present invention further comprises the steps of: in the above-mentioned methods and slides the infrared light along guide rail
Source, to adjust the position of each infrared light supply.
An example according to the present invention, in the above-mentioned methods, the guide rail includes dual orbiting vane.
An example according to the present invention, in the above-mentioned methods, the test mark version are printed by art post paperboard.
An example according to the present invention, in the above-mentioned methods, the art post paperboard whiteness is 82%-87%, printer ink
It is UV curable ink, the size of the test mark version is 700 × 1100mm, and every line line width is 3mm in the mark version.
An example according to the present invention, in the above-mentioned methods, the multi-cam mould group are dual camera mould groups, packet
Two cameras are included, in the step (b), two cameras are carried out respectively by two focusing handwheels
The focus operations.
According to another aspect of the present invention, the present invention also provides the multi-cam mould groups under a kind of environment based on near-infrared
Focusing system, the multi-cam mould group include multiple cameras, and the focusing system includes:
An at least infrared light supply, to provide infrared light；
At least one test mark version；
An at least focusing handwheel, the focusing handwheel carry out focus operations to the camera；And
An at least analysis center, wherein the multi-cam mould group is communicatively coupled with the analysis center, wherein institute
It states infrared light supply and the multi-cam mould group is located at the same side of the test mark version.
An example according to the present invention further includes a focusing camera bellows in above-mentioned focusing system, the focusing camera bellows tool
There is focusing room, the focus operations carry out in the focusing room, to avoid light disturbance.
An example according to the present invention further includes a mark plate rack in above-mentioned focusing system, and the two of the focusing camera bellows
Opposite side is respectively arranged with one or more groups of positioning protrusion apart from one another by ground setting, to be used to install the mark plate rack, wherein
Each positioning protrusion from it is corresponding focusing camera bellows two sides inner surface outwardly convex extend, the two neighboring positioning
Locating slot is formed between protrusion.
An example according to the present invention further includes a mark plate rack in above-mentioned focusing system, and the two of the focusing camera bellows
Opposite side is respectively arranged with one or more groups of positioning grooves apart from one another by ground setting, for installing the mark plate rack.
An example according to the present invention, in above-mentioned focusing system, the mark plate rack includes a fixed plate, the test
Mark version is fixed on the surface of the fixed plate and towards the multi-cam mould group.
An example according to the present invention, in above-mentioned focusing system, the test mark version is pasted on the fixed plate
Bottom surface, the mark plate rack further includes a reinforced frame, to prevent the fixed plate bending deformation, wherein the reinforced frame packet
Include multiple fixing ribs extended along mutually perpendicular direction.
An example according to the present invention, in above-mentioned focusing system, multiple fixing ribs include at least one laterally solid
Determine rib and at least one longitudinally fixed rib, it is described longitudinally fixed that the both ends of each lateral fixing rib are connected to corresponding at least one
Rib.
An example according to the present invention further includes a fixed bottom plate, the infrared light supply peace in above-mentioned focusing system
Loaded on the fixed bottom plate, test mark version is arranged in the fixed base surface.
An example according to the present invention further includes a focusing tool in above-mentioned focusing system, the focusing tool and
The infrared light supply is installed on the fixed bottom plate,
The focusing tool includes:
One sliding locating piece, the multi-cam mould group are removably installed in the sliding locating piece；
One focusing handwheel fixed plate has one or more focusing hole locations, to be respectively used to install the focusing handwheel；
And
One p-wire, the multi-cam mould group are communicably connect with the analysis center by the p-wire, when
When slideably pushing the sliding locating piece of the focusing tool, by the connector of the multi-cam mould group and the p-wire
Interface docking or separate.
An example according to the present invention, in above-mentioned focusing system, the infrared light supply is infrared LED light source, and
Multiple infrared light supplies are arranged in an infrared LED array of source on the fixed bottom plate.
An example according to the present invention, in above-mentioned focusing system, multiple infrared LED light sources are located at described
The approximate centre region of the fixed bottom plate is arranged in the corner of fixed bottom plate, the focusing tool.
An example according to the present invention, in above-mentioned focusing system, the fixed bottom plate is additionally provided with one or more
Guide rail, each infrared radiation source slides on the guide rail, so as to adjust its position.
An example according to the present invention, in above-mentioned focusing system, each guide rail have a cross track and
One longitudinal conduit.
An example according to the present invention, in above-mentioned focusing system, the test mark version is printed by art post paperboard, described
Art post paperboard whiteness is 82%-87%, and printer ink is UV curable ink, the size of the test mark version is 700 ×
1100mm, every line line width is 3mm in the mark version.
An example according to the present invention, in above-mentioned focusing system, each focusing handwheel includes a rotating handle and prolongs
A positioning region of the rotating handle is stretched in, forms location hole in the positioning region, and the positioning region is along the location hole
Inner surface has one or more positioning tooths.
An example according to the present invention, in above-mentioned focusing system, the analysis center includes an at least display device,
The display device provides multiple display areas, in real time and at the same time ground shows the test result of each camera.
An example according to the present invention, in above-mentioned focusing system, it is aobvious that the display device also provides a comparison result
Show region, to show multiple cameras for the test result of the same area of the same test mark version, if test
As a result it is qualified to determine the multi-cam module focusing in a preset range for difference degree, to enhance more camera shootings
The consistency of head mould group.
Detailed description of the invention
Fig. 1 is the focusing based on the multi-cam mould group under near-infrared environment according to a preferred embodiment of the present invention
The schematic diagram of system.
Fig. 2 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The perspective view of the focusing camera bellows of system.
Fig. 3 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The decomposition diagram of the target frame of system.
Fig. 4 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The perspective view of the fixation bottom plate of system.
Fig. 5 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The perspective view of the focusing handwheel of system.
Fig. 6 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The perspective view of the focusing tool of system.
Fig. 7 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The test mark version of system and the perspective view for marking plate rack.
Fig. 8 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The workflow schematic diagram of the focusing software of system.
Fig. 9 is the focusing based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The schematic diagram of the analysis center of system.
Figure 10 is the tune based on the multi-cam mould group under near-infrared environment of above preferred embodiment according to the present invention
The workflow schematic diagram of burnt method.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It is according to a preferred embodiment of the present invention based on more camera shootings under near-infrared environment as shown in Figures 1 to 7
Head mould group focusing system comprising focusing camera bellows 10, mark plate rack 20, test mark version 30, infrared light supply 40, focusing tool 50,
Analysis center 60.The multi-cam mould group includes multiple cameras, and the focusing system is suitable in real time to multiple described
Camera carries out focusing calibration, and multiple cameras may include camera described in two, three or more, excellent at this
In the embodiment of choosing, by taking two cameras as an example, i.e., the described multi-cam mould group can be a dual camera mould group.
More specifically, the focusing camera bellows 10 provides a focusing room 11 in focussing process, it can be by multiple panels 12
It surrounds and is formed.The focusing room 11 forms relatively closed space, to prevent extraneous veiling glare from influencing focusing measuring accuracy.?
That is in focussing process, the infrared light of the only described sending of infrared light supply 40 in the focusing room 11.As shown in Figure 2,
The focusing camera bellows 10 has the multiple groups positioning protrusion 13 being arranged apart from one another by ground, each positioning protrusion in opposite two sides
13 from it is corresponding focusing camera bellows 10 two sides inner surface outwardly convex extend.For example, in the example shown in Fig. 2, it is multiple
The panel 12 includes a Left-Hand Panel 121 and a right panel 122.Positioning protrusion 13 described in every group includes from the left side
The outwardly extending left side positioning protrusion 131 of the inner surface of panel 121, and from the inner surface of the right panel 122 to extension
The right positioner protrusion 132 stretched.The left side positioning protrusion 131 and raised 132 positions of right positioner accordingly arrange, i.e., mutually
It is symmetrically arranged, in this example, the left side positioning protrusion 131 and right positioner protrusion 132 are located at same height, this
Positioning protrusion 13 described in one group of sample can be used for fixing the mark plate rack 20.
The both ends of the mark plate rack 20 can be placed on corresponding one group described on positioning protrusion 13.It is noted that
In same side, the adjacent positioning protrusion 13 can form locating slot 14.Preferably, the size of the locating slot 14 can be with
It is matched with the size at the both ends of the mark plate rack 20, thus when the both ends of the mark plate rack 20 are placed on the corresponding convex
It rises on 13 and after being located in the locating slot 14, the mark plate rack 20 is able to be firmly secured in the focusing camera bellows 10.
In addition, 13 height of positioning protrusion described in every group is different, the fixation position of the mark plate rack 20 adjustable in this way,
To which mark the distance between the plate rack 20 and the multi-cam mould group to be focused are adjustable, to be suitble to different focal length to want
The multi-cam mould group asked.
It is noted that the focusing 10, camera bellows, which needs to provide, is capable of fixing the fixed structure for marking plate rack 20 i.e.
It can.The shapes and sizes of each positioning protrusion 13 are unrestricted, such as can be strip, and sheet is rod-shaped etc..In addition, this
Field technical staff it is envisioned that the mark plate rack 20 can also be fixed using other fixed structures, such as described in
Focusing 10 two sides of camera bellows can have the positioning groove to concave apart from one another by the slave inner surface of ground setting, the mark plate rack 20
Both ends be adapted to accommodate in the corresponding positioning groove, to play the role of the positioning mark plate rack 2.
As shown in figure 3, the mark plate rack 20 includes a fixed plate 21, the fixed plate 21 is for fixing the test mark version
30.In the example shown in Fig. 3, when 10 up and down direction of focusing camera bellows is placed, the test mark version 30 is fixed on described
The lower surface of fixed plate 21, fixed mode can be using stickup, or utilizes other fixing elements such as screw etc..The fixation
The two sides 211 of plate 21 are respectively accommodated in the locating slot 14 of focusing 10 two sides of camera bellows, to play the role of positioning.
It is noted that the mark plate rack 20 further includes multiple fixing ribs 22 being arranged, and each orthogonally
The fixing rib 22 is fixed on the upper surface of the fixed plate 21.That is, multiple fixing ribs 22 are marked with the test
Version 30 is located at the two sides of the fixed plate 21.Multiple fixing ribs 22 being arranged orthogonally, which play, tenses the fixed plate
21 effect, to prevent 21 bending deformation of fixed plate, the fixed plate 21 described in this way is able to provide a flat bottom surface, uses
Version 30 is marked in the fixation test.In this preferred embodiment shown in fig. 3, it is multiple be arranged orthogonally it is described solid
Determining rib 22 includes three parallel to each other and lateral fixing ribs 221 being positioned apart from and two longitudinally fixed ribs 222, two institutes
State longitudinally fixed rib 222 it is also parallel to each other and apart from one another by ground be arranged.The transverse direction fixing rib 221 and the corresponding longitudinal direction
Fixing rib 222 extends and links together along mutually perpendicular direction, so as to form a reinforced frame.That is,
The reinforced frame is mounted on the upper surface of the fixed plate 21, for preventing 21 bending deformation of fixed plate, thus described
Fixed plate 21 is able to provide smooth lower surface, when the test mark version 30 described in this way is fixed on the lower surface of the fixed plate 21,
Entirely extended, to improve measuring accuracy.
Each fixing rib 22 can be strip, sheet, rod-shaped etc..In the example shown in Fig. 3, each transverse direction
The both ends 2211 and 2212 of fixing rib 221 are connected to the inner surface of two longitudinally fixed ribs 222.That is, two
A longitudinally fixed rib 222 is connected to the both ends of three lateral fixing ribs 221.It is envisioned that each described vertical
It can also be extended vertically to fixing rib 222 from the part of the corresponding lateral fixing rib 221 or center, the transverse direction
The reinforced frame that fixing rib 221 and the longitudinally fixed rib 222 are formed according to different arrangements, as long as can play prevents institute
State 21 bending deformation of fixed plate.
The reinforced frame can integrally extend the fixed plate 21, can also pass through other fixing elements such as Luo
The fixing elements such as nail, rivet are fixed in the fixed plate 21.Multiple fixing ribs 22 being arranged orthogonally can be with one
It connects to body, can also be fixed together by fixing elements such as other fixing elements such as screw, rivet.
After the infrared light of the infrared light supply 40 reaches the test mark version 30, enter each camera shooting after reflection
Head.Therefore the infrared light supply 40 and the multi-cam mould group to be tested are located at the same side of the test mark version 30, and
In tradition mark version projection focus adjustment method, the light of planar light source passes through tradition mark version and reaches camera again, thus planar light source and
Camera is the two sides for being located at tradition mark version, and tradition mark version is made of transmitance material.
In this preferred embodiment of the invention, the infrared light of the infrared light supply 40 described is taken the photograph by each after reflection
As head is acquired, each position of the test mark version 30 corresponding in this way has infrared light to reach and is reflected into each institute
It states in camera, the test mark version 30 described in this way can be full of the test pictures of each camera.
As shown in figure 4, the infrared light supply 40 can be set in the bottom of the focusing camera bellows 10, such as can be placed on
On the bottom plate of the focusing camera bellows 10.In this preferred embodiment of the invention, the focusing system further includes a fixed bottom
The bottom of the focusing camera bellows 10 is placed or are mounted on to plate 70, the fixed bottom plate 70, and four infrared light supplies 40 are equably
It is distributed in the quadrangle of the fixed bottom plate 70.It is noted that the quantity of the infrared light supply 40 is also possible to its other than 4
His quantity, such as two, three, five, six.Multiple infrared light supplies 40 form infrared light supply array
Each infrared light supply 40 is the light source for being capable of providing infrared light, as an example, each infrared light
Source 40 is infrared LED light source.And each infrared light supply 40 may include one or more infrared LED light-emitting components, when
When each infrared light supply 40 includes multiple infrared LED light-emitting components, multiple infrared LED light-emitting component compositions are one infrared
LED light emitting array.As an example, each infrared LED light-emitting component can be the LED infrared lamp of 850nm wave band.
It is noted that using planar light source in traditional focus adjustment method, and only need in the present invention using multiple dotted
Arrangement the infrared light supply 40(such as this preferred embodiment in, four infrared LED light sources positioned at quadrangle), it can make
Multiple cameras complete Image Acquisition, and the test mark version 30 can be allowed full of test pictures, thus greatly reduce
Production cost required for focusing is tested.
As shown in Figure 4, the fixed bottom plate 70 includes a floor body 71, and four infrared light supplies 40 are located at described
The quadrangle of floor body 71.It is noted that the fixed bottom plate 70 is also respectively arranged with guide rail 72 in quadrangle, for adjusting
Save the position of the corresponding infrared light supply 40.More specifically, in the example shown in Figure 4, each guide rail 72 is dual
Cross guide rail.Specifically, each guide rail 72 may include cross track 721 and long rails 722, each corresponding institute
Stating infrared light supply 40 can slide along the cross track 721 and the long rails 722, so as to adjust its position
It sets, makes the sensitive chip in each camera that can receive enough infrared lights.
In addition, fixed device 73 is additionally provided in the central location of the fixed bottom plate 70, for fixing the focusing
Jig 50, wherein the focusing tool 50 is used to carry out focus operations to each camera.In the preferred embodiment, Gu
Determining device 73 includes three right angle fixed blocks, passes through fixing element such as screw, rivet or concave-convex fit structure etc. and institute respectively
It is fixed to state focusing tool 50, so that the focusing tool 50 is located in the position of the approximate centre of the fixed bottom plate 70.
As shwon in Figures 5 and 6, the focusing tool 50 includes a jig main body 51, with fixed 73 phase of device
Connection, to play positioning action.The focusing tool 50 further includes the sliding being slidably disposed in the jig main body 51
Locating piece 52, multiple focusing handwheels 53, focusing handwheel fixed plate 54 and p-wire 55.In this preferred embodiment, described
Focusing tool 50 is for focusing to dual camera mould group, so that it includes two focusing handwheels 53, the focusing hand
Taking turns the tool of fixed plate 54, there are two hole locations 541 of focusing, to be used to cooperate with the corresponding focusing handwheel 53, thus for corresponding institute
It states camera and carries out focus operations.
Each focusing handwheel 53 can be integral type copper piece comprising rotating handle 531 and extend the rotating handle 531
Positioning region 532 forms location hole 533 in the positioning region 532, and the positioning region 532 is along in the location hole 533
Surface has one or more positioning tooths 534.When in use, it is described to hold that finger such as thumb and finger can be used in user
The rotating handle 531 of focusing handwheel 53 carrys out the corresponding camera of turn, and the location hole 533 is for being put into the camera shooting
Head, the positioning tooth 534 is for blocking the camera, so that the camera will not when making focusing handwheel 53 described in turn
Sliding teeth is run.It is noted that the structure of the focusing handwheel 53 is only used as illustrating, in practical applications when, Ke Yigen
According to needing to select suitable focusing handwheel or be improved to this focusing handwheel 53 of this preferred embodiment.
In focusing, the multi-cam mould group is removably attached on the sliding locating piece 52, such as is put into institute
In the fixing groove 521 for stating sliding locating piece 52, the sliding locating piece 52 is also provided with one or more setting elements
522, such as can be positioning column, with the positioning for the multi-cam mould group.The sliding locating piece 52 is pushed, so that institute
The connector for stating multi-cam mould group is docked with the interface of the p-wire 55, so that the multi-cam mould group enters work shape
State.The focusing handwheel fixed plate 54 is located at the upside suitable location of the multi-cam mould group, so that each focusing hand
Wheel 53 is suitable for carrying out focus operations to the corresponding camera for the multi-cam mould group for being located at downside.When focusing terminates
When, the sliding locating piece 52 is pushed, so that the connector of the multi-cam mould group leaves the interface of the p-wire 55, so
The multi-cam mould group is able to remove from the sliding locating piece 52 afterwards.
It is noted that in focussing process, the focusing handwheel fixed plate 54 keeps the focusing handwheel 53 and right
The position between the camera answered, to realize limit focus operations, and prevents the eyeglass of the camera to be scratched.
In addition, being test mark version 30 used in this embodiment of the invention, as an example, institute as shown in Figure 7
It states test mark version 30 to print using using art post paperboard, since the infrared light supply uses 850nm wave band LED infrared lamp, it is contemplated that
Reflection will cause imaging facula, therefore the whiteness of art post paperboard does not need too high, i.e. too high whiteness, such as 92% or more A etc. white
Degree, can be excessively white bright, does not utilize catoptric imaging, in this preferred embodiment, art post paperboard whiteness requires to select at place
82%, printer ink can be UV curable ink (UV ink).
The test mark version 30 is fixed on 20 bottom of mark plate rack (mark version silk-screen is face-down), more specifically, can be
It is pasted onto the bottom surface of the fixed plate 21 of the mark plate rack 20.The test mark version size can according to need setting, such as
700x1100mm, it is 3mm that every line line width in version 30 is marked in the test, and line marks 30 region of version to the entire test is covered with
It is interior.It is noted that test mark version 30 used in this embodiment of the invention is only used as illustrating, in practical applications
It can according to need and use other satisfactory mark versions.
The analysis center 60 is connected to the p-wire 55, to be shown and be analyzed for exchanging close-burning fruit.Specifically
Ground, the analysis center 60 include a display device 61, for showing test result to user.In this preferred embodiment
In, the analysis center 60 can be a computer, and the display device 61 is computer display screen, and in this preferred implementation
In example, the multi-cam mould group is dual camera mould group, and the display device 61 includes the first viewing area 611, the second display
Area 612 and third viewing area 613.First viewing area 611 shows the data and as a result, described the of first camera
Two viewing areas 612 show the data of second camera and as a result, the third viewing area 613 shows the first and second cameras
Data and result comparison result.
As shown in figs. 8 and 9, be this preferred embodiment of the invention the analysis center 60 test program
62.Display and progress two cameras of its image result for being used to control dual camera mould group in the display device 61
Between parameter comparison eliminate the difference between two cameras to increase consistency.
According to this preferred embodiment, the test program 62 depends on special-purpose software (TestBed.EXE) Lai Shixian,
Its concrete operation method can carry out as follows.
(1) " TestBed.EXE " is opened, first clicks on interface button " START ", software will be called voluntarily
" Unlocker ", and show digraph.
(2) image is closed using key " 1 ", key " 2 " opens image and carries out focusing function test.
(3) it shows in result and is divide into upper part and lower part, the data and result (OK/NG) that upper part is shown are carried out to left figure
What test obtained；The data and result (OK/NG) that lower part is shown are tested right figure；Wherein intermediate two figures are equal
Even property is the degree testing two figures and differing in the same area, and data difference≤5 of two figures, then regard as in the same area
OK。
(4) it clicks runnable interface " EXIT " and exits software.
It is noted that because the infrared light of the infrared light supply 40 of the invention is by being reflected into each described take the photograph
As head, so that the test mark version 30 is able to be full of entire test pictures in display image in test pictures.In the present invention
This specific example in, show that the top in result is allocated as first viewing area 611, lower part shows result as institute
The second viewing area 612 is stated, intermediate two figures are as the third viewing area 613.It is noted that the arrangement mode of display result
It is not so limited, as long as the test result of two cameras can be displayed in real time and it is compared.
The present invention provides comparison operation for two or more cameras, can make the consistent of entire mould group in this way
Property strengthened, and test when, be can simultaneously focusing calibration is carried out to two or more cameras, improve tune
Burnt efficiency.It is noted that the data difference 5 of above-mentioned focusing parameter is only used as illustrating, and in the present invention with no restriction, root
According to needs, can also be set in practical applications.
Correspondingly, the workflow of focus operations of the invention is as shown in Figure 10, the focusing tool 50 with described point
Analysis center 60 is communicatively coupled, and then opens the infrared light supply 40, and runs the special-purpose software of the analysis center 60, institute
Multi-cam module group assembling is stated on the focusing tool 50, the display device 61 of the analysis center 60 shows test
Image carries out focus operations, root for each camera using the focusing handwheel 53 then according to the image shown
According to software prompt, determine whether the multi-cam mould group is qualified, more camera shootings are finally removed from the focusing tool 50
Head mould group, and the multi-cam mould group is subjected to fine or not classification.
Therefore, described more the present invention provides a kind of focus adjustment method of the multi-cam mould group under environment based on near-infrared
Camera module includes multiple cameras, and described method includes following steps:
(a) infrared light, which reaches, tests after mark version 30 through being reflected into each camera of the multi-cam mould group；
(b) focus operations are carried out to the camera by focusing handwheel 53；And
(c) each camera acquired image information of transmission is sent to analysis center 60 and is handled, and root
Determine whether to continue next step focus operations according to processing result or determines that the multi-cam mould group is unqualified.
Above-mentioned steps (b) and step (c) can repeat, until focusing is completed.
In the step (a), version 30 can be marked to the test by multiple infrared LED light sources 40 and issue infrared light,
The test mark version 30 is fixed on the bottom surface of the fixed plate 21 of mark plate rack 20.The fixed plate 21 by by multiple along Vertical Square
Its bending deformation is prevented to the reinforced frame of the fixing rib of extension composition.
In the step (b), each camera is equipped with a corresponding focusing handwheel 53.And the focusing
Handwheel 53 is mounted in the focusing hole location 541 of the focusing handwheel fixed plate 54 of focusing tool 50.
It should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.Function and structural principle of the invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (36)
1. a kind of focus adjustment method of the multi-cam mould group under environment based on near-infrared, the multi-cam mould group include multiple take the photograph
As head, which is characterized in that described method includes following steps:
(a) infrared light, which reaches, tests after mark version through being reflected into each camera of the multi-cam mould group；
(b) focus operations are carried out to the camera by focusing handwheel；And
(c) it sends each camera acquired image information to analysis center to be handled, and according to processing result
Determine whether to continue next step focus operations or determines that the multi-cam mould group is unqualified；
Wherein in the step (a), version is marked towards the test by one or more infrared light supply and issues infrared light, and
And when replacing the multi-cam mould group wait focus, the relative position of each infrared light supply and the test mark version is protected
It holds constant.
2. the focus adjustment method as described in claim 1 based on the multi-cam mould group under near-infrared environment, which is characterized in that
Repeat above-mentioned steps (b) and step (c), until focusing is completed.
3. the focus adjustment method as described in claim 1 based on the multi-cam mould group under near-infrared environment, which is characterized in that
The focus adjustment method carries out in focusing camera bellows, to avoid the interference of veiling glare, wherein each infrared light supply is set respectively
In the focusing camera bellows.
4. special such as the focus adjustment method of the multi-cam mould group under the environment any one of claims 1 to 3 based on near-infrared
Sign is, the bottom surface that the test mark version is fixed on to the fixed plate of mark plate rack is further comprised the steps of:, so that version court is marked in the test
It is arranged to the infrared light supply.
5. the focus adjustment method as described in claim 4 based on the multi-cam mould group under near-infrared environment, which is characterized in that
Further comprising the steps of: through the reinforced frame of multiple fixing rib compositions extended along orthogonal directions prevents the fixed plate
Bending deformation, so that the fixed plate be made to provide flat bottom surface.
6. the focus adjustment method as described in claim 4 based on the multi-cam mould group under near-infrared environment, which is characterized in that
In the step (b), each camera is equipped with a corresponding focusing handwheel, to be able to simultaneously to multiple institutes
It states camera and carries out the focus operations.
7. the focus adjustment method as described in claim 6 based on the multi-cam mould group under near-infrared environment, which is characterized in that
Before focus operations progress, further comprises the steps of: and the multi-cam mould group is detachably secured to focusing tool, institute
It states multi-cam mould group and the analysis center is communicatively coupled with by p-wire.
8. the focus adjustment method as described in claim 7 based on the multi-cam mould group under near-infrared environment, which is characterized in that
In the focusing hole location for further comprising the steps of: the focusing handwheel fixed plate that each focusing handwheel is installed on to the focusing tool.
9. the focus adjustment method as described in claim 1 based on the multi-cam mould group under near-infrared environment, which is characterized in that
The display device by the analysis center is further comprised the steps of:, in real time and at the same time ground shows each camera
Test result.
10. the focus adjustment method as described in claim 2 based on the multi-cam mould group under near-infrared environment, feature exist
In, further comprise the steps of: and the test result of each camera be compared, when each camera be directed to the test
The difference degree of the test result of the same area of version is marked in a preset range, determines that the multi-cam module focusing closes
Lattice.
11. the focus adjustment method as described in claim 2 based on the multi-cam mould group under near-infrared environment, feature exist
In, the focusing parameter further comprised the steps of: for each camera is compared, difference 5 or more when determine focusing the result is that
It is unqualified.
12. the focus adjustment method as described in claim 8 based on the multi-cam mould group under near-infrared environment, feature exist
In further comprising the steps of: the infrared light supply and the focusing tool being installed on fixed bottom plate, the fixed bottom plate is arranged in institute
It states in focusing camera bellows.
13. the focus adjustment method as described in claim 12 based on the multi-cam mould group under near-infrared environment, feature exist
In the infrared light supply is infrared LED light source, and four infrared light supplies are respectively arranged at the four of the fixed bottom plate
The approximate centre region of the fixed bottom plate is arranged in angle, the focusing tool.
14. the focus adjustment method as described in claim 12 based on the multi-cam mould group under near-infrared environment, feature exist
In the sliding locating piece for slideably pushing the focusing tool being further comprised the steps of:, by the connection of the multi-cam mould group
Device is docked or is separated with the interface of the p-wire, wherein the multi-cam mould group is removably installed in the sliding positioning
Block.
15. the focus adjustment method as described in claim 13 based on the multi-cam mould group under near-infrared environment, feature exist
In further comprising the steps of: and slide the infrared light supply along guide rail, to adjust the position of each infrared light supply.
16. the focus adjustment method as described in claim 15 based on the multi-cam mould group under near-infrared environment, feature exist
In the guide rail includes dual orbiting vane.
17. such as the focus adjustment method of the multi-cam mould group under the environment any one of claims 1 to 3 based on near-infrared,
It is characterized in that, the test mark version is printed by art post paperboard.
18. the focus adjustment method as described in claim 17 based on the multi-cam mould group under near-infrared environment, feature exist
In the art post paperboard whiteness is 82%-87%, and printer ink is UV curable ink, and the size of the test mark version is 700
× 1100mm, every line line width is 3mm in the mark version.
19. such as the focus adjustment method of the multi-cam mould group under the environment any one of claims 1 to 3 based on near-infrared,
It is characterized in that, the multi-cam mould group is dual camera mould group comprising two cameras, in the step (b),
The focus operations are carried out to two cameras respectively by two focusing handwheels.
20. a kind of focusing system of the multi-cam mould group under environment based on near-infrared, the multi-cam mould group includes multiple
Camera, which is characterized in that the focusing system includes:
An at least infrared light supply, to provide infrared light；
At least one test mark version；
An at least focusing handwheel, the focusing handwheel carry out focus operations to the camera；And
An at least analysis center, wherein the multi-cam mould group is communicatively coupled with the analysis center, wherein described red
Outer light source and the multi-cam mould group are located at the same side of the test mark version；
Wherein when replacing the multi-cam mould group wait focus, each infrared light supply is opposite with the test mark version
Position remains unchanged.
21. the focusing system as described in claim 20 based on the multi-cam mould group under near-infrared environment, feature exist
In, it further include a focusing camera bellows, the focusing camera bellows has focusing room, and the focus operations carry out in the focusing room, with
Avoid light disturbance.
22. the focusing system based on the multi-cam mould group under near-infrared environment as described in claim 21, feature exist
In, further include a mark plate rack, it is described focusing camera bellows two opposite sides be respectively arranged with it is one or more groups of apart from one another by ground setting
Positioning protrusion, to be used to install the mark plate rack, wherein each positioning protrusion is out of, corresponding focusing camera bellows two sides
Extend to surface outwardly convex, forms locating slot between the two neighboring positioning protrusion.
23. the focusing system based on the multi-cam mould group under near-infrared environment as described in claim 21, feature exist
In, further include a mark plate rack, it is described focusing camera bellows two opposite sides be respectively arranged with it is one or more groups of apart from one another by ground setting
Positioning groove, for installing the mark plate rack.
24. the focusing system based on the multi-cam mould group under near-infrared environment as described in claim 22 or 23, special
Sign is, the mark plate rack includes a fixed plate, and the test mark version is fixed on the surface of the fixed plate and towards described
Multi-cam mould group.
25. the focusing system based on the multi-cam mould group under near-infrared environment as described in claim 24, feature exist
In the test mark version is pasted on the bottom surface of the fixed plate, and the mark plate rack further includes a reinforced frame, described to prevent
Fixed plate bending deformation, wherein the reinforced frame includes multiple fixing ribs extended along mutually perpendicular direction.
26. the focusing system based on the multi-cam mould group under near-infrared environment as recited in claim 25, feature exist
In multiple fixing ribs include at least one lateral fixing rib and at least one longitudinally fixed rib, each lateral fixing rib
Both ends are connected to the corresponding at least one longitudinally fixed rib.
27. the focusing system based on the multi-cam mould group under near-infrared environment as described in any in claim 20 to 23,
It is characterized in that, further including a fixed bottom plate, the infrared light supply is installed on the fixed bottom plate, and the fixed base surface is to institute
It is arranged with stating test mark version.
28. the focusing system as claimed in claim 27 based on the multi-cam mould group under near-infrared environment, which is characterized in that
It further include a focusing tool, the focusing tool and the infrared light supply are installed on the fixed bottom plate,
The focusing tool includes:
One sliding locating piece, the multi-cam mould group are removably installed in the sliding locating piece；
One focusing handwheel fixed plate has one or more focusing hole locations, to be respectively used to install the focusing handwheel；And
One p-wire, the multi-cam mould group are communicably connect by the p-wire with the analysis center, when can slide
When pushing the sliding locating piece of the focusing tool dynamicly, by connecing for the connector of the multi-cam mould group and the p-wire
Mouth docking is separated.
29. the focusing system as claimed in claim 27 based on the multi-cam mould group under near-infrared environment, which is characterized in that
The infrared light supply is infrared LED light source, and multiple infrared light supplies are arranged in an infrared LED on the fixed bottom plate
Array of source.
30. the focusing system as claimed in claim 29 based on the multi-cam mould group under near-infrared environment, which is characterized in that
Multiple infrared LED light sources are located at the corner of the fixed bottom plate, and the focusing tool is arranged at the fixed bottom
The approximate centre region of plate.
31. the focusing system as claimed in claim 29 based on the multi-cam mould group under near-infrared environment, which is characterized in that
The fixed bottom plate is additionally provided with one or more guide rails, and each infrared radiation source slides on the guide rail, so as to adjust it
Position.
32. the focusing system as claimed in claim 31 based on the multi-cam mould group under near-infrared environment, which is characterized in that
Each guide rail has a cross track and a longitudinal conduit.
33. the focusing system as claimed in claim 20 based on the multi-cam mould group under near-infrared environment, which is characterized in that
The test mark version is printed by art post paperboard, and the art post paperboard whiteness is 82%-87%, and printer ink is UV curable
The size of ink, the test mark version is 700 × 1100mm, and every line line width is 3mm in the mark version.
34. the focusing system as claimed in claim 20 based on the multi-cam mould group under near-infrared environment, which is characterized in that
Each focusing handwheel includes a rotating handle and the positioning region for extending the rotating handle, forms location hole in the positioning region,
And the positioning region has one or more positioning tooths along the inner surface of the location hole.
35. the focusing system as claimed in claim 20 based on the multi-cam mould group under near-infrared environment, which is characterized in that
The analysis center includes an at least display device, and the display device provides multiple display areas, in real time and at the same time
Ground shows the test result of each camera.
36. the focusing system based on the multi-cam mould group under near-infrared environment as described in claim 35, feature exist
In the display device also provides a comparison result display area, to show multiple cameras for the same test
The test result of the same area of version is marked, if the difference degree of test result in a preset range, determines more camera shootings
Head module focusing is qualified, to enhance the consistency of the multi-cam mould group.
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| CN201410024629.XA CN104793458B (en) | 2014-01-20 | 2014-01-20 | Multi-cam module focusing method and its system under a kind of environment based on near-infrared |
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| CN106468852B (en) * | 2015-08-20 | 2019-06-21 | 宁波舜宇光电信息有限公司 | For testing the lamp box and its assemble method of camera module |
| CN107357128B (en) * | 2016-05-09 | 2022-08-23 | 宁波舜宇光电信息有限公司 | All-round-looking camera test device and test method thereof |
| CN108885168B (en) * | 2018-06-12 | 2023-12-01 | 北京云端光科技术有限公司 | Detection system and signal enhancement device |
| CN108761566A (en) * | 2018-09-03 | 2018-11-06 | 南京福碧源环境技术有限公司 | Multigroup infrared inductor infrared intensity debugging apparatus |
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