CN207557633U - Have the structured light projecting device and electronic equipment of encoded light - Google Patents
Have the structured light projecting device and electronic equipment of encoded light Download PDFInfo
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- CN207557633U CN207557633U CN201721602679.7U CN201721602679U CN207557633U CN 207557633 U CN207557633 U CN 207557633U CN 201721602679 U CN201721602679 U CN 201721602679U CN 207557633 U CN207557633 U CN 207557633U
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Abstract
One has the structured light projecting device and electronic equipment of encoded light, the structured light projecting device includes a laser emitter, a photomask, a calibration lens system and a diffraction optical element, wherein the light that sends out of the laser emitter form a fixed pattern through the photomask, be collimated after the collimating lens system and after the diffraction optical element auxiliary diffusion projection to the extraterrestrial target.
Description
Technical field
The utility model is related to electronic device field of photographing, the structured light projection for having encoded light further to one fills
It puts, electronic equipment and its application, further relates to one and generate the coded structured light of fixed pattern by generating encoded light
Projection arrangement and electronic equipment.
Background technology
With the development of science and technology, photography electronic equipment also increasingly has been favored by people, naturally, people are to taking the photograph
The functional requirement of shadow electronic equipment is also higher and higher.And for photographic equipment, such as depth camera can obtain the depth of target
Information can realize the functions such as 3D scannings, imaging or modeling, and therefore, depth camera is also gradually applied in largely photography electronics
In equipment, so that photography electronic equipment increase is more multi-functional, and then brings people and preferably experience.
Structured light projecting device directly affects deeply as depth camera one of the ost important components, the quality of projection quality
Spend the image quality of camera.In the prior art, the structured light projecting device generally use light source of depth camera forms one and does not advise
Then pattern and extraterrestrial target is projected to, then acquires module and receive reflection light, and pass through the image needed for processor generation.But
Be due to common structure just by light source arrange on irregular pattern formed, while by collimating mirror formed directional light simultaneously
It replicates and is diffused on diffraction optical element DOE, ultimately form diffraction structured light projection module.And in light source design often
Using simple hot spot, so also referred to as pattern optical mode group.It is general to only have because of the mutual difference very little of hot spot
Spot size, dilute close point and position difference, therefore it is difficult to acquire identification after module receives pattern.
Under normal conditions, the structured light projecting device of traditional depth camera is in order to ensure that the structure light sent out can be accurate
The characteristic point A that collects extraterrestrial target information, be to be formed not using any combination between face light, linear light or point light
The structure light of the pattern of rule goes the information of capture space clarification of objective point A, therefore, is generated just because of the light source
The irregular pattern of same spot, the distinctive points very little between hot spot, and then can not ensure the structure light can fully by
Identification, so lead to not get certain characteristic point A information or characteristic point A acquisition of information it is not comprehensive etc., Jin Erying
Ring photographic quality.
For example, currently used speckle optical projection device is to go out irregular light beam by least by laser transmitter projects
A piece of collimation lens collimation, be then split by diffraction optical element (DOE), diffraction and form multiple duplications not
The pattern of rule, is then irradiated to extraterrestrial target, the characteristic information of extraterrestrial target is acquired with this, therefore, the speckle light projection
The structure light that device is sent out is the irregular pattern irregularly arranged carried out based on same spot, therefore may be in calibration
It the limitation of environment or equipment of itself ability and error occurs, and then can lead to not be accurately obtained the certain of extraterrestrial target
Characteristic point depth information, and then influence photographic quality.
In addition, due to the scrambling of the pattern light, cause to be split by diffraction optical element, diffraction is made
With and when forming multiple light beams, can not distinguish the borderline region between each light beam, and then lead to the spy in acquisition extraterrestrial target
When reference ceases, the corresponding characteristic information of None- identified, and then influence image quality.
Under normal conditions, the characteristic point information for going to obtain extraterrestrial target comprehensively as much as possible is ensured that, it is traditional
Structured light projecting device needs to set more light sources, goes to project extraterrestrial target with the light beam for sending out more as possible, therefore, will
A large amount of energy of light source is consumed, and increases wear rate, not only influences imaging effect, but also reduces the service life of equipment.
Invention content
One of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light, energy
The coded structured light for enough forming fixed pattern is projected to the surface of extraterrestrial target, and then preferably identifies the depth letter of extraterrestrial target
Breath reduces calibrated error, accuracy of identification is improved, to ensure three-dimensional imaging quality.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
The encoded light is sent out by the laser light source for having coding pattern, is collimated by collimating mirror, DOE replicates diffusion, to form fixation
The coded structured light of pattern projects extraterrestrial target.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
Light beam is sent out by area source, the encoded light is formed by a photomask, is collimated by collimating mirror, DOE replicates diffusion, to be formed
The coded structured light of fixed pattern projects extraterrestrial target.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
It will not influence the fixed pattern of the coded structured light with environmental change or equipment of itself factor, into without wrong
Difference generates, to ensure the stability of projection quality.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
When wherein described photomask has transparent area and then passes the beam through the photomask, the encoded light of various patterns is formed.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
Wherein described encoded light diffuses to form the coded structured light of multiple fixed patterns, and each institute in process collimation, duplication
The coded structured light borderline region identification for stating fixed pattern is more accurate, so that when acquiring information, can be clear from identifying
Go out characteristic information, so that the acquisition of image is more precisely, fast.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
Wherein described structured light projecting device can reduce light source energy consumption, reduce equipment attrition rate, increase service life.
Another of the utility model is designed to provide the structured light projecting device and electronic equipment for having encoded light,
Simple in structure, practicability is high, at low cost.
According to the one side of the utility model, the utility model further provides for a structured light projection dress for having encoded light
It puts, for projecting to an extraterrestrial target, including：One laser emitter, a photomask, collimating lens system and a diffraction light
Element is learned, wherein the light that the laser emitter is sent out forms a fixed pattern, through the collimation lens through the photomask
It is collimated after system and is projected after the diffraction optical element replicates diffusion to the extraterrestrial target.
In some embodiments, the collimating lens system is between the photomask and the diffraction optical element.
In some embodiments, the photomask includes a transparent substrate and is set to the one light tight of the substrate
Layer, the light non-transmittable layers form multiple transparent areas by etch process, and the light beam that the laser emitter is sent out passes through described more
A transparent area forms the fixed pattern.
In some embodiments, the light hole that the laser emitter emits beam is against the light transmission of the photomask
Area.
In some embodiments, a structural support is further included, wherein the structural support has a channel, wherein
The laser emitter, the photomask, the calibration lens system and the diffraction optical element are installed on described logical successively
Road.
In some embodiments, further comprise a wiring board, wherein the circuit board electrical connection is sent out in the laser
Emitter.
According to the another aspect of the utility model, the utility model also provides a structured light projection dress for having encoded light
It puts, for projecting an extraterrestrial target, including：
One encoded light source；
One calibration lens system；With
One diffraction optical element, wherein the encoded light source sends out the encoded light for having coding pattern, by the collimation
Mirror is collimated, and projects the extraterrestrial target after the diffraction optical element replicates diffusion.
In some embodiments, the collimating lens system be located at the encoded light source and the diffraction optical element it
Between.
Still further aspect according to the present utility model, the utility model also provide a structured light projection dress for having encoded light
The camera module put, including：One acquisition module and above structure optical projection device, wherein the structure light containing photomask is thrown
Coded structured light of the image device projection with fixed pattern is to the surface of the extraterrestrial target and after being reflected by the acquisition mould
Group receives.
Still further aspect according to the present utility model, the utility model also provide an electronic equipment, for a space mesh of photographing
Mark, including：One equipment body and one or more above-mentioned camera modules, wherein the camera module can be operatively installed on institute
Equipment body is stated, for the extraterrestrial target of photographing.
Description of the drawings
Fig. 1 is the structure of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
Schematic diagram.
Fig. 2A is the portion of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
Separation structure schematic diagram.
Fig. 2 B are the portions of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
Divide schematic diagram.
Fig. 3 is the part of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
Structure diagram.
Fig. 4 is the part of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
Structure diagram.
Fig. 5 is the part of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
Structure diagram.
Fig. 6 is the electronics of the structured light projecting device for having encoded light of a preferred embodiment according to the present utility model
The structure diagram of equipment.
Fig. 7 is the structure of the structured light projecting device for having encoded light of the first variant embodiment according to the present utility model
Schematic diagram.
Specific embodiment
It is described below to disclose the utility model so that those skilled in the art can realize the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It is retouched following
The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, etc. Tongfangs
The other technologies scheme of case and spirit and scope without departing from the utility model.
It will be understood by those skilled in the art that in the exposure of the utility model, term " longitudinal direction ", " transverse direction ", " on ",
" under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", the instructions such as " outer " orientation or position
Relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
Above-mentioned term is it is not intended that limitation to the utility model.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be multiple, and term " one " is no
It is understood that as the limitation to quantity.
Design according to the present utility model provides a structured light projecting device for having an encoded light, electronic equipment and its should
With can form the coded structured light of fixed pattern and project the surface of extraterrestrial target, and then preferably obtain extraterrestrial target
Depth information, and then more Precision criterion, to ensure tripleplane's quality.
The structured light projection for the having encoded light dress of the preferred embodiment of the utility model shown in A and Fig. 2 B as shown in Figure 1, Figure 2
100 are put for being applied to the depth information that a camera module obtains extraterrestrial target, wherein the structure light for having encoded light is thrown
Image device 100 includes a laser emitter 10, a photomask 20, a calibration lens system 30 and a diffraction optical element 40, wherein
The light 11 that the laser emitter 10 is sent out forms a fixed pattern, through the collimating lens system 30 through the photomask 20
It is collimated afterwards and projection is to the extraterrestrial target after the diffraction optical element 40 replicates diffusion, to complete to project.Also
It is to say, the light 11 that the laser emitter 10 is sent out has the encoded light of fixed pattern by the photomask 20 formation, so
The encoded light forms specific solid after the colimated light system 30 is collimated and the diffraction optical element 40 replicates diffusion afterwards
Determine the coded structured light of pattern, be then projected to the extraterrestrial target, and then obtain the depth information of the extraterrestrial target.It is preferred that
Ground, the fixed pattern shape enable the camera module more accurately to obtain the depth information of the extraterrestrial target, with
Improve the quality of tripleplane.
It is noted that the collimating lens system 30 be located at the photomask 20 and the diffraction optical element 40 it
Between, to ensure that the light that the laser emitter 10 emits can sequentially pass through the photomask 20, the calibration lens system 30
With the diffraction optical element 40.
In the present embodiment, the laser emitter 10 launches light 11 and forms an initial optical path 111, wherein described
Photomask 20 is arranged on the optical circuit path direction of the initial optical path 111, so that the initial optical path 111 passes through the light
Mask 20 simultaneously forms an encoded light 112 with fixed pattern, i.e., the cross section of described encoded light 112 is the fixed figure
Case.That is, light in the initial optical path 111 can front illuminated in the photomask 20, and pass through the light and cover
Film 20 forms the encoded light 112 with fixed pattern.Preferably, the photomask 20 can completely receive described initial
The irradiation of light in light path 111, to prevent the initial optical path 111 from being leaked out from the side of the photomask 20, furthermore
The encoded light 112 is to be formed by the light in the initial optical path 111 across the photomask 20, and then is ensured described solid
The shape for determining pattern is fixed shape.Preferably, the shape of the fixed pattern causes the receiving module of the camera module
The structure light of extraterrestrial target surface reflection can be more accurately identified, so as to preferably obtain the depth of the extraterrestrial target
Information, to obtain the characteristic point information of the extraterrestrial target.As shown in figure 3, the photomask 20 has an area of the pattern 23,
Described in area of the pattern 23 be made of multiple light tight areas 231 and multiple transparent areas 232, wherein the light tight area 231 prevents
The light beam 11 passes through, wherein the transparent area 232 allows the light beam 11 to pass through.The initial optical path 111 passes through the light
The transparent area 232 of mask 20 simultaneously forms the encoded light 112, wherein the shape of the fixed pattern is similar to the light transmission
The shape in area 232, wherein the shape of the transparent area 232 can be the combination of one or more groups of cross, circle, rectangular etc., into
And the cross section of the encoded light 112 can be limited by the shape and structure of the area of the pattern 23 of the photomask 20
Shape, and then ensure that the encoded light 112 has fixed shape.
Preferably, it is preferably area source that the laser emitter 10, which has multiple laser light sources, to launch described in one group
Light beam 11, and then form the initial optical path 111.
It should be noted that each light source is respectively provided with a light hole to send out the light, it can be according to the light
The shape of the transparent area 232 of mask 20 is come the position of the light hole for the light source of arranging.In other words, the light source
The light hole position correspond to the photomask 20 the transparent area 232 shape so that from the Laser emission
The light that the light hole of device 10 is sent out can be irradiated to the transparent area 232 along straight line, and then reduce light and be irradiated to institute
Light tight area 231 is stated, to reduce the consumption of light energy.Meanwhile reduce the quantity of the light source of the laser emitter 10,
Light source energy consumption is reduced, reduces equipment attrition rate, increases service life.
It is generated it is noted that the light also can be the arrangement of laser emitters that multiple laser emitters 10 are formed
Light beam, to adapt to more demands.
It can be seen that the fixed pattern of the encoded light 112 light transmission with the photomask 20 always
The shape in area 232 is consistent, and the shape of the transparent area 232 of the photomask 20 can design according to demand；And the light
20 material settling out of mask, therefore the structured light projecting device 100 will not be influenced with environmental change or equipment of itself reason
The fixed pattern of the coded structured light is generated into without wrong difference, to ensure the stability of projection quality.
In the present embodiment, the photomask 20 includes a substrate 21 and a light non-transmittable layers 22, wherein 21 quilt of the substrate
It is arranged in the optical circuit path of the initial optical path 111, wherein the substrate 21 is made of a translucent material, it is preferably high-purity
Degree, antiradar reflectivity, the quartz glass of low thermal coefficient of expansion.The light non-transmittable layers 22 are disposed in described in the substrate 21 and formation
The light tight area 231 of area of the pattern 23 is to prevent the light beam 11 from passing through, wherein the light non-transmittable layers 22 are with fixed
Shape simultaneously reserves the transparent area 232 so that the light beam 11 passes through the transparent area 232 to form the encoded light 112.
That is, by the way that the light non-transmittable layers 22 are arranged in the substrate 21, to form the area of the pattern 23, and then make described
Initial optical path 111 forms the encoded light 112 across the area of the pattern 23.
It is noted that the light non-transmittable layers 22 can be artificially arranged in the substrate 21, i.e., described light non-transmittable layers
22 can be configured to the pattern of different structure shape, so that the shape and structure of the area of the pattern 23 can be manually set,
And then control the shape of the fixed pattern, i.e., the shape and structure of the cross section of described encoded light 112, to ensure the fixed figure
The shape of case is fixed, and then the coded structured light is made to be projected to the extraterrestrial target in the form of fixed pattern, is known with increasing
Other precision.
Preferably, the light non-transmittable layers 22 are etched by process means such as etchings, there is fixed pattern to be formed
The area of the pattern 23 the transparent area 232, and then obtain correspond to the extraterrestrial target characteristic point fixed pattern,
Described in initial optical path 111 can be by the transparent area 232 that is etched to form, but can not be by the institute that is not etched
Light tight area 231 is stated, to form the fixed beam 112 with the fixed pattern.Under normal conditions, by etching means
The minimum feature of the fixed pattern formed is distributed between 2-5um, each transparent area 232 can be c-type, it is cross, three
The shapes such as angular or one or more groups of combinations.What deserves to be explained is current etching technique is quite ripe, error is low, and then make institute
The precision for stating the fixed pattern of photomask 20 is very high, and then makes the precision of the fixed pattern of the encoded light 112 also higher,
It can be ensured that the size and shape of the fixed pattern meet design requirement, the camera module can be made to receive space mesh
The pattern that the coded structured light of mark reflection is formed can be more accurately identified, and then improve to the extraterrestrial target
The accuracy that characteristic information obtains, to improve three-dimensional imaging quality.
In addition, the coefficient of thermal expansion of the photomask 20 is relatively low, and then thermal deformation is not susceptible to, stability is high.Namely
It says, the size and shape of the area of the pattern 23 are more stable, ensure the stability of the fixed pattern with this, prevent because of heat
Deformation and the shape that influences the fixed pattern are changed, and then ensure the stability of the coded structured light, to ensure to project
The stability of reflection light during extraterrestrial target, and then ensure that the camera module can accurately identify the extraterrestrial target
Depth information.
The calibration lens system 30 is arranged in the optical circuit path of the encoded light 112, wherein in the encoded light 112
Light pass through and the calibration lens system 30 and collimated by the calibration lens system 30, and form a collimated light path 113,.Also
It is to say, the calibration lens system 30 only collimates the encoded light 112, the shape without influencing the fixed pattern, with
This ensures that the shape of the fixed pattern is still stablized.
In the present embodiment, the calibration lens system 30 is a piece of collimation lens, that is to say, that the structured light projection dress
Putting 100 only needs a piece of collimation lens that can meet the collimation to the light beam 11, more meets the needs of people with this.
It should be pointed out that as shown in Figure 4 and Figure 5, the calibration lens system 30 can be implemented as two panels collimation lens
It is even more.It is understood that the number of the collimation lens of the calibration lens system 30 does not cause to limit to the utility model
System, it is only necessary to meet collimating effect.
The diffraction optical element 40 is arranged on the optical circuit path of the collimated light path 113, wherein the collimated light path
Light in 113 passes through the diffraction optical element 40 and by 40 beam splitting of diffraction optical element, diffraction to replicate divergent contour
Into the similar coded structured light 1141 of multiple shapes and form an optical diffraction 114.That is, the extraterrestrial target is in
In the optical diffraction 114, so that the coded structured light projects the surface of the extraterrestrial target.Therefore, have when described
When the coded structured light 1141 of fixed pattern is irradiated to the surface of the extraterrestrial target, it can generate and also have figurate reflection
Light, and then when the camera module receives the reflection light, can more accurately identify the extraterrestrial target
Depth information, to ensure tripleplane's quality.Relative to traditional pattern optical projection device, due to the fixed pattern
Coded structured light enable the reflection light more accurately identifying by the camera module so that tripleplane
Quality is more accurate.
In the present embodiment, the diffraction optical element 40 is a kind of optical lens for having and replicating diffusion beam effect,
That is DOE.
It is noted that the coded structured light 1141 of the optical diffraction 114 is launched in the form of diffusion,
To cover extraterrestrial target as possible, and since the coded structured light 1141 is duplicated into multiple, and then ensure the space
Clarification of objective point can be projected and be identified by the coded structured light 1141.That is, at the extraterrestrial target
When the optical diffraction 114, the characteristic point of the extraterrestrial target can correspond to throwing by least one coded structured light 1141
It penetrates, it is not collected with the information of this characteristic point for preventing the extraterrestrial target, and then prevent from influencing photographic quality.
It can be seen that due to the coded structured light 1141 by the diffraction optical element 40 duplication formed it is multiple, and then
It is capable of the quantity of opposite reduction laser light source, and then reduces the consumption of the power of the laser emitter 10, more saves energy
Source.Also, relative to traditional pattern light, there is asking for the structure light area projecting space target that can not generate fixed pattern
Topic, the structured light projecting device for having encoded light of the utility model can use the coding knot with fixed pattern
1141 projecting space target of structure light, and then calibration effect is more preferable, it is more accurate so as to the identification of pattern.
There are one between the coded structured light 1141 in being pointed out that per the adjacent optical diffraction 114
Borderline region 11411 wherein the shape of the borderline region 11411 is similar to the figure on the fixed pattern boundary, is made with this
The shape for obtaining the borderline region 11411 can be identified.That is, in the characteristic point information for acquiring the extraterrestrial target
When, the borderline region 11411 between the coded structured light 1141 can be identified easily, and then ensures the space
Clarification of objective point information can be distinguished accurately, and then ensure image quality.It is projected relative to traditional speckle light
There are the feelings of the feature between the boundary that can not accurately identify adjacent structure light in the structure light of the irregular pattern of device
Condition, and then largely cause to acquire the mistake of characteristic point information, and then influence image quality.
In the present embodiment, the structured light projecting device 100 further comprises a structural support 50, wherein the knot
Structure support element 50 has a channel, wherein the laser emitter 10, the photomask 20, the calibration lens system 30 and described
Diffraction optical element 40 is mounted longitudinally in the channel successively, wherein the optical diffraction 114 is projected from the channel, with
Expose to the surface of extraterrestrial target.
The structured light projecting device 100 for having encoded light further comprises a wiring board 60, wherein the wiring board
60 are electrically connected to the laser emitter 10 so that the laser emitter 10 to be controlled to send out the light beam 11, wherein the circuit
Plate 60 is installed in the bottom side of the channel.Preferably, the wiring board 60 coordinates the structural support 50 by the channel
Bottom side closing, to prevent ambient from interfering the light beam 11.
As shown in fig. 6, the camera module and electronic equipment of the structured light projecting device 100 for having encoded light, wherein
The camera module of the structured light projecting device 100 for having encoded light includes an acquisition module 200,300 and of a processing module
Has the structured light projecting device 100 of encoded light described in one, wherein the structured light projecting device projection tool for having encoded light
There is the coded structured light of fixed pattern to the surface of the extraterrestrial target and reflect a reflected beams, wherein the reflected beams
It is received by the acquisition module, wherein the acquisition module is communicatively connected to the processing module, for the processing mould
Block generates corresponding image.
The electronic equipment of the camera module of the structured light projecting device 100 for having encoded light include an equipment body and
Has the camera module of the structured light projecting device 100 of encoded light described in one or more, wherein the structure for having encoded light
The camera module of optical projection device 100 can be operatively installed on the equipment body, for by the knot for having encoded light
The camera module of structure optical projection device 100 generates corresponding image and is shown in the equipment body, to meet the photography need of people
It asks.It is understood that the processing module can be integrated in the control mainboard of the equipment body.
The method that the structured light projecting device 100 for having encoded light generates coded structured light, includes the following steps：
By the light that the laser emitter 10 is sent out through the photomask 20 formed the encoded light 112 for having fixed pattern,
It is collimated after the collimating lens system 30 and forms the coded structured light after 40 beam splitting of diffraction optical element
1141, for projecting the extraterrestrial target.
The structured light projecting device for having encoded light of first variant embodiment of the utility model as shown in Figure 7, this change
The difference lies in described to have volume for the structured light projecting device 100A of shape embodiment and the preferred embodiment of the utility model
The structured light projecting device 100A of code light includes an encoded light source 10A, a calibration lens system 30 and a diffraction optical element 40,
Described in encoded light source 10A send out the encoded light 11A for having coding pattern, it is collimated by the calibration lens system 30, and pass through
It crosses after the diffraction optical element 40 replicates diffusion and projects the extraterrestrial target, to complete tripleplane.In other words, it is described
Encoded light source 10A sends out the encoded light 11A, is then collimated through the calibration lens system 30, the diffraction optical element 40 is answered
System diffuses to form the coded structured light 12A of fixed pattern, to project the extraterrestrial target.Preferably, the coded structured light
The shape of the fixed pattern of 12A is artificial design, can accurately be identified, so as to get the feature of the extraterrestrial target
Point information, ensures tripleplane's quality.
In the present embodiment, the collimating lens system 30 is located at the encoded light source 10A and the diffraction optical element
Between 40, so that the encoded light 11A that the encoded light source 10A is sent out can pass through the calibration lens system 30 and institute successively
Diffraction optical element 40 is stated, to form the coded structured light.
It is noted that the encoded light source 10A is the light source for having coding pattern, for example, cross, triangle or
The light source of pattern arrangement that the combinations such as circle are formed.That is, the coding pattern of the encoded light source 10A is fixed, energy
It is enough easily identified, and then the coded structured light 12A for the fixed pattern to be formed is made to be irradiated to the space mesh
During mark, the reflection light of generation is also fixed shape, and then enables camera module easily according to the reflection received
Light identifies the depth information of extraterrestrial target, and then improves projection quality.
In the present embodiment, the structured light projecting device 100A for having encoded light further comprises a structural support
50, wherein the structural support 50 has a channel, wherein the encoded light source 10A, the calibration lens system 30 and described
Diffraction optical element 40 is mounted longitudinally in the channel successively, wherein the coded structured light 12A is projected from the channel,
To expose to the surface of extraterrestrial target.
The structured light projecting device 100A for having encoded light further comprises a wiring board 60, wherein the wiring board
60 are electrically connected to the encoded light source 10A so that the encoded light source 10A to be controlled to send out the encoded light 11A, wherein the line
Road plate 60 is installed in the bottom side of the channel.Preferably, the wiring board 60 coordinates the structural support 50 will be described logical
The bottom side closing in road, to prevent ambient from interfering the encoded light 11A.
The method that the structured light projecting device 100A for having encoded light generates coded structured light, including following step
Suddenly：It is sent out by the encoded light source 10A and described has the encoded light 11A of fixed pattern, after the collimating lens system 30
It is collimated and forms the coded structured light 12A after 40 beam splitting of diffraction optical element, for projecting the space
Target.
It is understood that the camera module and electronic equipment of the structured light projecting device 100A for having encoded light,
The camera module of the wherein described structured light projecting device 100 for having encoded light includes an acquisition module 200, a processing module
Has the structured light projecting device 100A of encoded light described in 300 and one, wherein the structured light projecting device for having encoded light
Coded structured light 12A of the projection with fixed pattern to the surface of the extraterrestrial target and reflects the reflected beams, wherein described
The reflected beams are received by the acquisition module, wherein the acquisition module 200 is communicatively connected to the processing module 300,
So that the processing module 300 generates corresponding image.
The electronic equipment of the camera module of the structured light projecting device 100A for having encoded light includes an equipment body
With the camera module for the structured light projecting device 100 for having encoded light described in one or more, wherein the knot for having encoded light
The camera module of structure optical projection device 100 can be operatively installed on the equipment body, for having encoded light by described
The camera module of structured light projecting device 100 generates corresponding image and is shown in the equipment body, to meet the photography of people
Demand.It is understood that the processing module can be integrated in the control mainboard of the equipment body.
It should be understood by those skilled in the art that the embodiment of foregoing description and attached the utility model shown in figure is only used as
It illustrates and is not intended to limit the utility model.The purpose of this utility model completely and effectively realizes.The work(of the utility model
Energy and structural principle show and illustrate in embodiment, under without departing from the principle, the embodiment of the utility model
Can there are any deformation or modification.
Claims (11)
- A 1. structured light projecting device, for projection a to extraterrestrial target, which is characterized in that including：One laser emitter, a light Mask, collimating lens system and a diffraction optical element, wherein the light that the laser emitter is sent out is through the photomask A fixed pattern is formed, is collimated after the collimating lens system and is thrown after diffraction optical element auxiliary diffusion Shadow is to the extraterrestrial target.
- 2. structured light projecting device according to claim 1, wherein the collimating lens system be located at the photomask and Between the diffraction optical element.
- 3. structured light projecting device according to claim 1, wherein the photomask includes a transparent substrate and setting In a light non-transmittable layers of the substrate, the light non-transmittable layers form multiple transparent areas, the laser emitter by etch process The light beam sent out forms the fixed pattern across the multiple transparent area.
- 4. structured light projecting device according to claim 3, wherein the light hole pair that the laser emitter emits beam The transparent area of the photomask.
- 5. according to the structured light projecting device any in Claims 1-4, wherein a structural support is further included, wherein The structural support has a channel, wherein the laser emitter, the photomask, the calibration lens system and described spreading out It penetrates optical element and is installed on the channel successively.
- 6. according to the structured light projecting device any in Claims 1-4, wherein further comprise a wiring board, wherein The circuit board electrical connection is in the laser emitter.
- 7. structured light projecting device according to claim 5, wherein further comprising a wiring board, wherein the wiring board The laser emitter is electrically connected to, and the wiring board is located at the channel bottom side.
- A 8. structured light projecting device, for projecting an extraterrestrial target, which is characterized in that including：One encoded light source, a calibration lens system and a diffraction optical element, wherein the encoded light source sends out and has coding pattern Encoded light, be collimated by the collimating mirror, and by the diffraction optical element replicate diffusion after project the space Target.
- 9. structured light projecting device according to claim 8, wherein the collimating lens system be located at the encoded light source and Between the diffraction optical element.
- 10. the camera module of a structured light projecting device, which is characterized in that including：One acquisition module and according to claim 1 to Any one structured light projecting device in 9, wherein coding structure of the structured light projecting device projection with fixed pattern Light is received to the surface of the extraterrestrial target and by the acquisition module after being reflected.
- A 11. electronic equipment, for an extraterrestrial target of photographing, which is characterized in that including：One equipment body and one or more bases Camera module according to any one of claims 10, wherein the camera module can be operatively installed on the equipment body, for photography The extraterrestrial target.
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| CN201721602679.7U CN207557633U (en) | 2017-11-25 | 2017-11-25 | Have the structured light projecting device and electronic equipment of encoded light |
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| CN109471270A (en) * | 2018-12-26 | 2019-03-15 | 宁波舜宇光电信息有限公司 | A kind of structured light projector, Depth Imaging device |
| CN109839792A (en) * | 2017-11-25 | 2019-06-04 | 宁波舜宇光电信息有限公司 | The structured light projecting device, electronic equipment and its application for having encoded light |
| CN110313018A (en) * | 2018-09-18 | 2019-10-08 | 深圳市汇顶科技股份有限公司 | Depth information construct system, related electronic device and the method to construction depth information |
| WO2020088057A1 (en) * | 2018-10-29 | 2020-05-07 | 南昌欧菲生物识别技术有限公司 | Projection module, imaging device, and electronic device |
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| CN109839792A (en) * | 2017-11-25 | 2019-06-04 | 宁波舜宇光电信息有限公司 | The structured light projecting device, electronic equipment and its application for having encoded light |
| CN109839792B (en) * | 2017-11-25 | 2024-05-03 | 宁波舜宇光电信息有限公司 | Structured light projection device with coded light, electronic device and application thereof |
| CN110313018A (en) * | 2018-09-18 | 2019-10-08 | 深圳市汇顶科技股份有限公司 | Depth information construct system, related electronic device and the method to construction depth information |
| WO2020088057A1 (en) * | 2018-10-29 | 2020-05-07 | 南昌欧菲生物识别技术有限公司 | Projection module, imaging device, and electronic device |
| CN109471270A (en) * | 2018-12-26 | 2019-03-15 | 宁波舜宇光电信息有限公司 | A kind of structured light projector, Depth Imaging device |
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