CN206223977U - Laser ranging system, camera head and terminal - Google Patents
Laser ranging system, camera head and terminal Download PDFInfo
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- CN206223977U CN206223977U CN201621105151.4U CN201621105151U CN206223977U CN 206223977 U CN206223977 U CN 206223977U CN 201621105151 U CN201621105151 U CN 201621105151U CN 206223977 U CN206223977 U CN 206223977U
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Abstract
The utility model discloses a kind of laser ranging system, camera head and terminal, a kind of laser ranging system includes：Circuit board, laser range sensor and cover plate, laser range sensor is mounted with circuit boards, optical transmitting set and optical receiver are arranged at intervals with ligh-ranging sensor, cover plate is located at laser sensor top, and it is provided with transmittance section in the cover plate, the optical transmitting set nearly infrared beam is sent to testee via transmittance section, reflect and received through transmittance section to optical receiver via object nearly infrared beam is surveyed, circuit board is provided with light-absorption layer, and light-absorption layer is around optical transmitting set and optical receiver, light-absorption layer is used to absorb near infrared light.The technical scheme of the utility model embodiment advantageously reduces reflection light and causes crosstalk near infrared ray, it is ensured that to the accuracy of testee range measurement, accelerates automatic focusing speed.
Description
Technical field
The utility model is related to optical field, more particularly to laser ranging system, camera head and terminal.
Background technology
Near-infrared laser ranging technology can quickly measurement testee be passed to laser ranging according to the flight time of photon
The distance that sensor is passed, near infrared ray can be launched and be received to laser range sensor, because the light velocity is fixed value
(299792.458km/s), by determining photon from the TOF (Time Of Fly, flight time) for being transmitted into reception, it is possible to obtain
Obtain the distance of testee.When near-infrared ranging technology is applied to the terminal (such as mobile phone) with camera function, can be when taking pictures
Range information using testee accelerates automatic focusing speed, allows user to obtain experience of preferably taking pictures.
At present, laser range sensor is launched and reception near infrared ray due to needing, therefore generally on the shell of terminal
The surface for increasing a hole, the optical window for placing laser range sensor, and optical window sets a piece of cover plate
Optical window is closed, printing opacity baffle plate is provided with cover plate, the near-infrared that the optical transmitting set on laser range sensor sends
Light beam is sent to testee via printing opacity baffle plate, then is reflected via testee nearly infrared beam and passed through optical window
Received to optical receiver, to realize the measurement to the distance of testee.However, the near infrared light sent when optical transmitting set
Beam is reflexed to when on optical receiver through cover plate, and the reflection light easily causes crosstalk near infrared ray, so as to can cause to tested
The measurement result of object distance is not accurate enough, and then cannot realize accelerating the effect of automatic focusing speed.
Utility model content
The utility model provides one kind laser ranging system, camera head and terminal, it is possible to reduce reflection light pair
Near infrared ray causes crosstalk.
The utility model embodiment first aspect provides a kind of laser ranging system, and the laser ranging system includes circuit
Plate, laser range sensor and cover plate, laser range sensor is mounted with the circuit board, in laser ranging sensing
Optical transmitting set and optical receiver are arranged at intervals with device, the cover plate is located at laser sensor top, and in the cover plate
In be provided with transmittance section, the optical transmitting set nearly infrared beam is sent to testee via the transmittance section, via described
The near-infrared light beam is reflected and is received through the transmittance section to the optical receiver, the light-absorption layer by testee
Located at the circuit board, and the light-absorption layer is around the optical transmitting set and the optical receiver, the extinction
Layer is used to absorb near infrared light.
The utility model embodiment second aspect provides a kind of camera head, the camera head include CCD camera assembly,
Laser ranging system described in processor and above-mentioned any one of first aspect, the CCD camera assembly is electrical with the processor
Connection, the laser ranging system is electrically connected with the processor, and measurement result is sent to institute by the laser ranging system
State processor, the processor by the measurement feedback to the CCD camera assembly so that the CCD camera assembly root
Shooting focusing is carried out according to the measurement result.
The utility model embodiment third aspect provides a kind of terminal, and the terminal includes housing, mainboard and above-mentioned the
Camera head described in two aspects, the mainboard and the camera head are all in the housing, and the camera head is electrical
It is connected to the mainboard.
The utility model provides a kind of laser ranging system, camera head and terminal, by the circuit board
Light-absorption layer is set around side, the optical transmitting set and the optical receiver, is used to absorb the near infrared ray reflected from cover plate,
Crosstalk is caused near infrared ray so as to reduce reflection light.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of laser ranging system cross-sectional view of the prior art；
Fig. 2 is a kind of laser ranging system cross-sectional view that the utility model embodiment is provided；
Fig. 3 is another laser ranging system cross-sectional view that the utility model embodiment is provided；
Fig. 4 is another laser ranging system cross-sectional view that the utility model embodiment is provided；
Fig. 5 is another laser ranging system cross-sectional view that the utility model embodiment is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
For the ease of description, may be used herein such as " beneath ", " below ", D score
" up ", " on " etc. space relative terms an element or feature shown in figure are described with another element
Or the relation of feature.It should be understood that when an element or layer be referred to as another element or layer " on ", " being connected to " or
When " being couple to " another element or layer, it can directly on another element or layer, be directly connected to or be couple to another element
Or layer, or there may be intervening elements or layer.
It is appreciated that terminology used here is merely to description specific embodiment, is not intended to limit the utility model.
Used here as when, unless context is explicitly indicated that, otherwise singulative " " " being somebody's turn to do " is also intended to include plural form.Further
Ground, when being used in this specification, term " including " and/or "comprising" show the feature, entirety, step, element and/or group
The presence of part, but it is not excluded for the presence or increase of one or more other features, entirety, step, element and/or component.Say
Bright book subsequent descriptions are so described to be described as illustrating the utility model one to implement preferably implementation method of the present utility model
As implementation principle, be not limited to scope of the present utility model.Protection domain of the present utility model is wanted when regarding appended right
Defined person is asked to be defined.
In order to make it easy to understand, a kind of cross-sectional view of laser ranging system in the prior art is given first below,
As shown in figure 1, a kind of laser ranging system 100 in the prior art, including circuit board 11, laser range sensor (figure is not direct
Show) and cover plate 13, wherein, laser range sensor includes spaced optical transmitting set 111 and optical receiver 112, light hair
Emitter 111 and optical receiver 112 are placed on the circuit board 11, and the cover plate 13 is located at laser sensor top, institute
State cover plate 13 to be generally made up of translucent material, such as lucite, transmittance section 12, the transmittance section are provided with the cover plate
Can be the entity structure being made up of translucency material, be fixed on cover plate inner side (towards circuit board side), or
A kind of structure of hollow out, i.e., positioned at the groove of the optical transmitting set 111 and the top of optical receiver 112.When needs are carried out to tested
During the measurement of object distance, the nearly infrared beam of the optical transmitting set 111 is sent to quilt via the transmittance section 12 and cover plate 13
Survey on object, the near-infrared light beam is reflected via the testee and passes through cover plate 13 and the transmittance section 12 is to described
Optical receiver 112 is received, by determining that the photon in near-infrared light beam is transmitted into by optical receiver from by optical transmitting set 111
112 flight time for receiving, it is possible to measure the distance of testee.In this process, because optical transmitting set 111 sends
Near-infrared light beam generally have certain angle of divergence (usually 20 °~30 °), so when near-infrared beam emissions to cover plate 13 or
During the transmittance section 12 of person's entity structure, the near infrared light of part is inevitably reflected, and is then connect by optical receiver 112
Receive, the near infrared light of this part will be to being reflected and receiving near-infrared light beam by optical receiver 112 by testee
Crosstalk is caused, so as to the measurement result to testee distance can be caused not accurate enough.
In order to reduce above-mentioned crosstalk, the accuracy to the measurement result of testee distance is improved, the utility model is to existing
There is technology to be made that improvement, as shown in Fig. 2 Fig. 2 is a kind of laser ranging system section knot that the utility model embodiment is provided
Structure schematic diagram, a kind of laser ranging system 200 that the utility model embodiment is provided, including circuit board 21, laser ranging sensing
Device (figure does not show directly) and cover plate 23, wherein, laser range sensor includes spaced optical transmitting set 211 and light-receiving
Device 212, optical transmitting set 211 and optical receiver 212 are placed on the circuit board 21, and the cover plate 23 is located at the laser sensing
Device top, the cover plate 23 is generally made up of translucent material, such as lucite.Transmittance section 22 is provided with the cover plate,
The transmittance section can be the entity structure being made up of translucency material, be fixed on the cover plate inner side (towards circuit board one
Side), transmittance section can be entity transmittance section, or a kind of structures of hollow out such as lucite as described, as positioned at described
Optical transmitting set 211 and the groove of the top of optical receiver 212.When needing to carry out the measurement to testee distance, the light hair
The nearly infrared beam of emitter 211 is sent to testee via the transmittance section 22 and cover plate 23, via the testee
The near-infrared light beam is reflected and is received through cover plate 23 and the transmittance section 22 to the optical receiver 212, passed through
Determine photon in near-infrared light beam from being transmitted into flight time for being received by optical receiver 212 by optical transmitting set 211, it is possible to
Measure the distance of testee.
Wherein, the circuit board 21 is to be provided with laser range sensor and realize laser range sensor to tested
The populated circuit board that object distance is measured, so, the circuit board is except being mounted with optical transmitting set 211 and optical receiver
Outside 212, the also metal routing with high reflectance, scolding tin and insulated paint are also arranged Laser Measuring on the circuit board in addition
Away from chip, the laser ranging chip is generally formed by encapsulating material encapsulation, and the encapsulating material can be also reflected light.
It should be understood that because the near-infrared light beam that optical transmitting set 211 sends generally has certain angle of divergence, so working as near-infrared light beam
Launch to cover plate or entity structure transmittance section when, the near infrared light of part is inevitably reflected, the reflected light
Line can be reflected again after reaching the circuit board 21, by between cover plate 23, entity transmittance section 22 and the circuit board 21
After multiple reflections, received by optical receiver 212, the near infrared light of this part multiple reflections will be to by the measured object
Body is reflected and receives near-infrared light beam by optical receiver 212 and causes crosstalk.It is described multiple in order to cut off in the present embodiment
The path of reflection, realizes reducing the purpose of crosstalk, and light-absorption layer 24 is provided with the top of the circuit board 21, and the light-absorption layer 24 sets
Around the optical transmitting set 211 and the optical receiver 212, the light-absorption layer 24 is used to absorb near infrared light.Specifically,
That is, the light-absorption layer is covered in the circuit board, and the light-absorption layer is covered in the optical transmitting set and described
Around optical receiver, when the part near infrared light of transmitting to cover plate or the transmittance section of entity structure is reflected back, this
The light-absorption layer that partial near infrared light will be coated on circuit board 21 is absorbed, so as to multiple reflections cannot be carried out, is entered
And the near infrared light of reflection can be reduced to being reflected by the testee and near infrared light is received by optical receiver 212
The crosstalk of Shu Zaocheng.
Wherein, the light-absorption layer is made up of light absorbent, or, the light-absorption layer scribbles light absorbent.The extinction material
Expect to be covered in circuit board top, may be used to absorb near infrared light, the electrical functions of circuit board will not be impacted again
Material.In the particular embodiment, the light-absorption layer can be all made up of light absorbent, or partly by extinction material
Material is made, i.e., described light absorbent can by smearing, painting, adsorb, inlay, adhesion or other modes be attached to other materials
On, so as to form light-absorption layer (such as black double-sided glue).Wherein, the light absorbent can for extinction paint, the tusche containing carbon high,
Carbon nanomaterial, Near Infrared Absorptive Resin or other can absorb the optical material of near infrared light；The light absorbent is also
Can carry out oxidation processes in metal material and obtain, concrete operations can be aoxidized on the shell of metal material
Treatment, so as to form the nano level metal oxide (such as iron oxide, aluminum oxide, zinc oxide) of light absorptive, the metal oxygen
Compound can be used to absorb near infrared light.
Wherein, it is covered in circuit board and is covered in the optical transmitting set and the light again to realize light-absorption layer
Purpose around receiver, the light-absorption layer in structure for can deformation structure or fixed structure, embodiments thereof is respectively such as
Shown in Fig. 2 and Fig. 3, in the specific embodiment given by Fig. 2, the light-absorption layer 24 for can deformation structure, it is described can deformation knot
Structure refers to flexibility, is also easy to produce the structure of deformation, such as membrane structure, adhesive tape structure under external force.Light-absorption layer is adopted
With can deformation structure be advantageous in that be easy to operation, that is, by shirtsleeve operation just can it is described can deformation structure be covered in
Circuit board and it is covered in again around the optical transmitting set and the optical receiver；It is also convenient for being applied to different circuits
Hardened structure, that is, it is described can deformation structure height electronic component straggly and chip can be covered on circuit board.
For example, in specific application scenarios, the light-absorption layer 24 is the black belt of absorbable near infrared light, and we can be described
Black belt is pasted above the circuit board 21 around optical transmitting set 211 and optical receiver 212, that is to say, that in the circuit
Towards in the side of cover plate 23, the region in addition to optical transmitting set 211 and optical receiver 212 is adhesive with described plate 21
Black belt, so, as long as the near infrared light reflected through cover plate 23 or entity transmittance section 22 that optical transmitting set 211 sends
Into black belt region, will be absorbed by black belt, so as to avoid reflection light through the multiple reflections of circuit board 21 extremely
Light absorber 212 and the crosstalk that causes.
In the specific embodiment given by Fig. 3, the light-absorption layer is fixed structure, that is to say, that Fig. 3 embodiments and figure
The difference of 2 embodiments is, in a kind of laser ranging system 300 given by Fig. 3 embodiments, above circuit board 31,
And the light-absorption layer 34 around optical transmitting set 311 and the optical receiver 312 is covered in for fixed structure, rather than can deformation knot
Structure.The fixed structure refers to have figurate structure, such as platy structure, laminated structure etc., in concrete operations, can
The fixed structure and circuit board are fixed together with by modes such as welding, riveting, bondings.Light-absorption layer uses fixed structure
An additional benefit can be to make board structure of circuit firmer, the dust-proof anticollision of protection circuit plate, while the fixed knot
Structure can not contact circuit board, it is to avoid circuit board electricity structure is impacted.For example, in specific application scenarios, the suction
Photosphere 34 is the tusche plate of absorbable near infrared light, and we can be fixed on the tusche plate by modes such as riveting, bondings
The top of circuit board 31 around optical transmitting set 311 and optical receiver 312, that is to say, that in the circuit board 31 towards cover plate 33
The side on, the overlying regions in addition to optical transmitting set 311 and optical receiver 312 are covered by tusche plate, so, light
As long as the near infrared light reflected through cover plate 33 or entity transmittance section 32 that transmitter 311 sends is into tusche plate region,
Will be absorbed by tusche plate, be caused to light absorber 312 through the multiple reflections of circuit board 31 so as to avoid reflection light
Crosstalk.
It should be understood that the light-absorption layer described in technical solutions of the utility model is to be covered in the circuit board, and
The structure of the absorbable near infrared light being covered in around optical transmitting set and optical receiver, so the knot be given except above-described embodiment
Outside configuration formula, the light-absorption layer can also be other generation types, such as described light-absorption layer can be by sides such as spray painting, smearings
Formula is adhered to light absorbent (such as extinction paint, extinction resin) on circuit boards, attachment light absorbent on circuit boards
The near infrared light reflected back by cover plate and entity transmittance section can be absorbed, so as to reduce reflection light through circuit board multiple reflections
The crosstalk caused to light absorber.
As can be seen that the laser ranging system that the utility model embodiment is provided, by laser range sensor
Optical transmitting set and optical receiver are arranged at intervals with, cover plate is set above the laser sensor, and is set in the cover plate
Transmittance section, is provided with light-absorption layer, the light hair around the circuit board and the optical transmitting set and the optical receiver
Emitter nearly infrared beam is sent to testee via the transmittance section, via the testee by the near infrared light
Beam reflects and is received through the transmittance section to the optical receiver, so that the measurement to testee distance is realized, and
The light-absorption layer can be absorbed the near infrared light reflected back from cover plate and entity transmittance section, so as to reduce reflection light
Through the crosstalk that circuit board multiple reflections are caused to light absorber, it is ensured that to the accuracy of testee range measurement.
Referring to Fig. 4, Fig. 4 is another laser ranging system cross-sectional view that the utility model embodiment is provided.
As shown in figure 4, the laser ranging system 400 includes circuit board 41, laser range sensor (not shown) and cover plate 43,
Laser range sensor is mounted with the circuit board 41, optical transmitting set is arranged at intervals with the laser range sensor
411 and optical receiver 412, the cover plate 43 is provided with transmittance section located at laser sensor top in the cover plate, schemes
Transmittance section difference in transmittance section and above-mentioned Fig. 2 and Fig. 3 in 4 is that the transmittance section in Fig. 4 has the first transmittance section 421, the
Two transmittance sections 422 and the shadow shield 44 between first transmittance section 421 and second transmittance section 422, the shading
Plate 44 is used to isolate first transmittance section 421 and second transmittance section 422, first transmittance section 421 and described second
Transmittance section 422 can be the entity structure being made up of translucency material, be fixed on cover plate inner side (towards circuit board side),
Transmittance section can be entity transmittance section, or a kind of structures of hollow out, i.e., described first transmittance section such as lucite as described
421 is that is, described first transmittance section 421 is on the optical receiver 412 positioned at the groove of the top of the optical transmitting set 411
The groove of side.The circuit board is provided with light-absorption layer 45, and the light-absorption layer 45 is located at the optical transmitting set 411 and the light
Around receiver 412, it is used to absorb near infrared light.
When the near-infrared beam emissions that optical transmitting set 411 is launched to cover plate or entity transmittance section and when being reflected, portion
Door light may be directly reflected on optical receiver 412, so as to cause crosstalk, in the first transmittance section 421 and the second printing opacity
The purpose of shadow shield 44 is set between portion 422 to be that, the first transmittance section 421 and the second transmittance section 422 is isolated, to avoid
Directly received by optical receiver 412 by the light that cover plate or entity transmittance section are reflected, wherein the shadow shield 44 can be
The individual components being fixed on the cover plate 43, or the integral structure formed with cover plate 43.
In order to further realize avoiding directly being connect by optical receiver 412 by the light that cover plate or entity transmittance section are reflected
The purpose of receipts, sets printing opacity baffle plate on the cover board, and the printing opacity baffle plate includes first baffle 431 and second baffle 432, first gear
Located at the top of the first transmittance section 421, second baffle 432 covers described the to plate 431 located at the top of the second transmittance section 422
One transmittance section 421 and second transmittance section 422.The printing opacity baffle plate is the entity structure being made up of translucency material, if any
Machine glass etc..Wherein, in the printing opacity baffle plate setting cover plate 43, that is to say, that first baffle 431 is located at the in the cover plate 43
The region of the top of one transmittance section 421, second baffle 432 is located at the region of the top of the second transmittance section 422 in cover plate 43,
In specific operation, by the corresponding region hollow out of cover plate 43 and translucency material can be filled and form printing opacity baffle plate, it is described
The shape of baffle plate is consistent with the transmittance section cross sectional shape being disposed below.Further, the cover plate 43 and shadow shield 44
It is made by light absorbent, or light absorbent is scribbled in the cover plate inwall 462, is applied in the shadow shield both sides 461
There is light absorbent.In the particular embodiment, the near-infrared light beam that optical transmitting set 411 is launched can be via the first transmittance section 421
Launch to testee with printing opacity baffle plate 431, the near-infrared light beam that the testee is reflected can be via printing opacity baffle plate
432 and second transmittance section 422 received by optical receiver 412, so as to realize the measurement to testee distance.In this process
In, on the one hand, because cover plate has light absorbent, so transmitting to the near infrared light of cover plate inwall 462 can be direct by cover plate
Absorb and transmitting cannot be formed, on the other hand, transmitting is launched the part returned to printing opacity baffle plate or entity transmittance section
Near infrared light is absorbed by the light-absorption layer 45 on circuit board, or is blocked on plate 44 or shadow shield both sides 461
Light absorbent absorbed, or by being absorbed by the light absorbent on cover plate 44 or cover plate inwall 462 after multiple reflections,
That is, the part near infrared light for being reflected will be by cover plate, shadow shield and circuit board before optical receiver 412 is reached
On light absorbent absorbed, so as to avoid these near infrared lights to being reflected and by light-receiving by the testee
Device 412 receives the crosstalk that near-infrared light beam is caused, it is ensured that to the accuracy of the measurement result of testee distance.
Wherein, in the particular embodiment, the light-absorption layer, cover plate and shadow shield can be all by light absorbent system
Into, or part be made up of light absorbent, that is, the light absorbent can by smearing, painting, adsorb, inlay,
Adhesion or other modes are attached on other materials, so as to form corresponding light-absorption layer, cover plate and shadow shield.Wherein, it is described
Light absorbent can for extinction paint, the tusche containing carbon high, carbon nanomaterial, Near Infrared Absorptive Resin or other can inhale
Receive the optical material of near infrared light；The light absorbent can also be and carry out oxidation processes and obtain in metal material, specific to grasp
Work can be that oxidation processes are carried out on the shell of metal material, so as to form the nano level metal oxide of light absorptive (such as
Iron oxide, aluminum oxide, zinc oxide etc.), the metal oxide may be used to absorb near infrared light.
Wherein, light-absorption layer in structure for can deformation structure or fixed structure (for details, reference can be made to Fig. 2 and Fig. 3 embodiments
In to light-absorption layer can deformation structure or fixed structure description, repeat no more here).
In the present embodiment, also referring to Fig. 4 and Fig. 5, in the laser ranging system 400 that Fig. 4 is given, the extinction
Layer 45 for can deformation structure, it is described can deformation structure be covered in the top of circuit board 41 and be covered in the optical transmitting set 411 again
And around the optical receiver 412, while it is described can deformation structure be located at shadow shield 44 below, in the particular embodiment, institute
Stating shadow shield 44 can be close to or be adjacent to the light-absorption layer 45, to prevent reflection light between shadow shield 44 and light-absorption layer 45
Gap in pass through, while so that laser ranging system 400 is more fastened.
And in the laser ranging system 500 given by Fig. 5, the light-absorption layer 55 is fixed structure, that is to say, that Fig. 5
The difference of embodiment and Fig. 4 embodiments is, in Figure 5, located at the top of circuit board 51 and is covered in optical transmitting set 511 and institute
State around optical receiver 512, while light absorbing zone below shadow shield 54 is fixed structure, rather than can deformation structure.
In the particular embodiment, the shadow shield 54 can be adjacent to the light-absorption layer 55, to prevent reflection light from the He of shadow shield 54
Passed through in gap between light-absorption layer 55, while so that the structure of laser ranging system 400 more fasten it is firm.
As can be seen that the laser ranging system that the utility model embodiment is provided, by laser range sensor
Optical transmitting set and optical receiver are arranged at intervals with, cover plate is set above the laser sensor, and is set under the cover plate
There is transmittance section, transmittance section is isolated into two parts by middle setting shadow shield in transmittance section, printing opacity baffle plate is set on the cover board.In order to
Realize being reduced in laser ranging system the crosstalk of near infrared light, the cover plate and shadow shield are made by light absorbent, or
Light absorbent is scribbled in cover plate inwall, light absorbent is scribbled in shadow shield, sent out in the circuit board and the light in addition
Light-absorption layer is provided with around emitter and the optical receiver, the light-absorption layer is used to absorb near infrared light.When optical transmitting set is nearly red
Outer light beam is sent to testee via the transmittance section and printing opacity baffle plate, via the testee by the near infrared light
Beam reflects and is received through printing opacity baffle plate and transmittance section to optical receiver, so as to realize the measurement to testee distance.
And will be covered before optical receiver is reached by the part near infrared light reflected back from printing opacity baffle plate and entity transmittance section
Light absorbent on plate, shadow shield and circuit board is absorbed, so as to avoid these near infrared lights to by the testee
Reflect and the crosstalk that near-infrared light beam is caused is received by optical receiver, it is ensured that to the measurement result of testee distance
Accuracy.
Additionally, the utility model additionally provides a kind of camera head of the above-mentioned laser ranging system of application, the shooting dress
Put including CCD camera assembly, processor and above-mentioned laser ranging system, the CCD camera assembly is electrical with the processor
Connection, the laser ranging system is electrically connected with the processor, and measurement result is sent to institute by the laser ranging system
State processor, the processor by the measurement feedback to the CCD camera assembly so that the CCD camera assembly root
Shooting focusing is carried out according to the measurement result.
In the utility model embodiment, the camera head can for camera or monitor etc., wherein, swash when described
During the laser range sensor transmitting near-infrared light beam of optical range finding apparatus, the near-infrared light beam can pass through transmittance section and cover plate
To testee, the near-infrared light beam is reflected and passed by laser ranging through the cover plate and transmittance section by testee
Sensor is received, and so as to obtain the measurement result of testee distance, the laser ranging system ensure that to testee distance
The accuracy of measurement, the processor processes the measurement result and in measurement feedback to the CCD camera assembly, from
And the purpose in camera head focusing speed of quickening camera when shooting is realized, and then obtain body of preferably taking pictures
Test.
Further, the utility model additionally provides a kind of terminal of the above-mentioned camera head of application, and the terminal includes shell
Body, mainboard and above-mentioned camera head, the mainboard and the camera head are all located in the housing, the camera head
It is electrically connected at the mainboard.
Wherein, the terminal can be mobile phone, panel computer, notebook computer, wearable device (such as intelligent glasses)
Terminal with above-mentioned camera head, when the laser range sensor in the terminal launches near-infrared light beam, the near-infrared
Light beam can be through on transmittance section and cover plate to testee, and testee reflects through described the near-infrared light beam
Cover plate and transmittance section are received by laser range sensor, so as to obtain the measurement result of testee distance, the laser ranging
Device ensure that the accuracy to testee range measurement, so as to the distance measurement function and quickening of realizing the terminal are taken pictures automatically
The function of focusing speed.
In the above-described embodiment, the description to each embodiment all emphasizes particularly on different fields, and is not retouched in detail in certain embodiment
The part stated, may refer to the associated description of other embodiment.
Above to being described in detail disclosed in the utility model embodiment, specific case used herein is to this reality
It is set forth with new principle and implementation method, the explanation of above example is only intended to help and understands of the present utility model
Some constructions and its core concept；Simultaneously for those of ordinary skill in the art, according to thought of the present utility model, in tool
Be will change in body implementation method and range of application, in sum, this specification content should not be construed as to this practicality
New limitation.
Claims (10)
1. a kind of laser ranging system, it is characterised in that the laser ranging system include circuit board, laser range sensor and
Cover plate, laser range sensor is mounted with the circuit board, and light hair is arranged at intervals with the laser range sensor
Emitter and optical receiver, the cover plate are provided with transmittance section, the light located at laser sensor top in the cover plate
Transmitter nearly infrared beam is sent to testee via the transmittance section, via the testee by the near-infrared
Light beam reflects and is received through the transmittance section to the optical receiver, and the circuit board is provided with light-absorption layer, and institute
Light-absorption layer is stated around the optical transmitting set and the optical receiver, the light-absorption layer is used to absorb near infrared light.
2. laser ranging system according to claim 1, it is characterised in that the light-absorption layer is for can deformation structure or solid
Fixed structure.
3. the laser ranging system according to any one of claim 1 to 2, it is characterised in that the light-absorption layer is by extinction material
Material is made, or, the light-absorption layer scribbles light absorbent.
4. the laser ranging system according to any one of claim 1 to 2, it is characterised in that be provided with transmittance section：
First transmittance section, the near-infrared light beam that optical transmitting set is launched can be launched to testee via first transmittance section
On；
Second transmittance section, the near-infrared light beam that the testee is reflected can be via second transmittance section by optical receiver
Receive；
Shadow shield, between first transmittance section and second transmittance section, is used to isolate first transmittance section and institute
State the second transmittance section.
5. laser ranging system according to claim 4, it is characterised in that be provided with printing opacity baffle plate on the cover board, it is described
Baffle plate covers first transmittance section and described the located at the top of first transmittance section and second transmittance section
Two transmittance sections.
6. laser ranging system according to claim 5, it is characterised in that the cover plate is made up of light absorbent, or,
The shadow shield is made up of light absorbent.
7. laser ranging system according to claim 6, it is characterised in that the cover plate inwall scribbles light absorbent, or
Person, the shadow shield both sides scribble light absorbent.
8. laser ranging system according to claim 1, it is characterised in that the transmittance section is groove.
9. a kind of camera head, it is characterised in that the camera head includes CCD camera assembly, processor and such as claim
Laser ranging system described in 1 to 8 any one, the CCD camera assembly is electrically connected with the processor, the laser ranging
Device is electrically connected with the processor, and measurement result is sent to the processor, the treatment by the laser ranging system
Device by the measurement feedback to the CCD camera assembly so that the CCD camera assembly is carried out according to the measurement result
Shoot and focus on.
10. a kind of terminal, it is characterised in that the terminal includes housing, mainboard and shooting dress as claimed in claim 9
Put, all in the housing, the camera head is electrically connected at the mainboard for the mainboard and the camera head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621105151.4U CN206223977U (en) | 2016-10-08 | 2016-10-08 | Laser ranging system, camera head and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105151.4U CN206223977U (en) | 2016-10-08 | 2016-10-08 | Laser ranging system, camera head and terminal |
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| CN206223977U true CN206223977U (en) | 2017-06-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621105151.4U Active CN206223977U (en) | 2016-10-08 | 2016-10-08 | Laser ranging system, camera head and terminal |
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