CN209167159U - A kind of sensing device and equipment - Google Patents

Abstract

The utility model provides a kind of sensing device, for sensing the three-dimensional information of measured target object comprising optical projection mould group and sensing mould group.The optical projection mould group includes beam modulation element and light-source structure.The light-source structure includes semiconductor base and the pattern beam illuminator for forming sending optical power detection light beam on a semiconductor substrate.The beam modulation element includes the patterned optical lines of substrate and formation on the substrate.The patterned optical lines corresponds to the pattern beam illuminator and is configured.There is the pattern beam of predetermined pattern to be projected on measured target object for formation after the light field for the optical power detection that pattern beam illuminator issues is carried out rearrangement by the patterned optical lines.The sensing mould group is by analyzing the three-dimensional information for being incident upon the predetermined pattern on measured target object and sensing with the situation of change of measured target object three-dimensional shape measured target object.The utility model also provides a kind of equipment.

Description

A kind of sensing device and equipment

Technical field

The utility model belongs to optical technical field more particularly to a kind of sensing device and equipment.

Background technique

Existing three-dimensional (Three Dimensional, 3D) sensing mould group is usually required using with irregular distribution The light source projects of luminescence unit go out the light pattern of irregular distribution to carry out three-dimensional sensing.However, forming the hair of irregular distribution The technique of light unit is more complex, leads to the increased costs of three-dimensional sensing mould group, is unfavorable for the universalness of Related product.

Summary of the invention

The technical problem to be solved by the utility model is to provide a kind of sensing device and equipment with lower cost.

The utility model embodiment provides a kind of sensing device, for sensing the three-dimensional information of measured target object, wraps Include optical projection mould group and sensing mould group.The optical projection mould group includes beam modulation element and light-source structure.The light source Structure includes semiconductor base and the pattern beam illuminator for forming sending optical power detection light beam on a semiconductor substrate.Institute Stating beam modulation element includes the patterned optical lines of substrate and formation on the substrate.The patterned optical lines pair The pattern beam illuminator is answered to be configured.The uniform intensity that the patterned optical lines issues pattern beam illuminator There is the pattern beam of predetermined pattern to be projected on measured target object for formation after the light field of distribution carries out rearrangement.The sensing Mould group is incident upon on measured target object the predetermined pattern by analysis and feels with the situation of change of measured target object three-dimensional shape Survey the three-dimensional information of measured target object.

In some embodiments, the predetermined pattern is selected from the striated of irregular distribution spot pattern, regular array Pattern and along one of pattern beam of the cross one another regular grid pattern of different directions and combinations thereof.

In some embodiments, the pattern beam illuminator is multiple evenly arranged vertical according to default same intervals Straight cavity surface-emitting laser luminescence unit.

In some embodiments, the quantitative range of the multiple vertical cavity surface emitting laser luminescence unit is 2 to 12 It is a.

In some embodiments, the pattern beam illuminator is the wide face type vertical cavity surface-emitting laser of a single hole Device.

In some embodiments, the pattern beam illuminator is formed in the middle position of semiconductor base.

In some embodiments, the light-source structure further includes multiple for issuing with the floodlight for being uniformly distributed light intensity Light beam illuminator.The flood beam illuminator and pattern beam illuminator are formed on identical semiconductor base, and can be with It is independently controlled respectively luminous.

In some embodiments, the pattern beam illuminator is formed in the middle part of semiconductor base.The floodlight light Beam illuminator is symmetrical around the pattern beam illuminator.

In some embodiments, the beam modulation element further includes being formed on substrate to correspond to flood beam illuminator Diffusion optical grains.The original beam that the flood beam illuminator is issued is diffuseed to form light by the diffusion optical grains Strong equally distributed flood beam is projected on measured target object.

The utility model embodiment also provides a kind of equipment comprising the sense as described in above-mentioned any one embodiment Survey device.The three-dimensional information of the measured target object that the equipment is sensed according to sensing device executes corresponding function.

In some embodiments, the corresponding function is preset including unlocking, paying after identification user's identity, start The mood and health condition of user are judged after application program, avoidance, identification user's countenance using deep learning technology In any one or more.

Sensing device provided by the utility model embodiment and equipment are better simply evenly arranged using processing procedure VCSEL luminescence unit and beam modulation element cooperate to project predetermined pattern on measured target object, simplify projection light source Manufacture difficulty, also further reduce the cost of device.

The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partially will be under Become obvious in the description in face, or is recognized by the practice of the utility model embodiment.

Detailed description of the invention

Fig. 1 is the top view for the light-source structure that the utility model first embodiment provides.

Fig. 2 is the top view for the light-source structure that the utility model second embodiment provides.

Fig. 3 is the top view for the light-source structure that the utility model third embodiment provides.

Fig. 4 is the structural schematic diagram for the optical projection mould group that the 4th embodiment of the utility model provides.

Fig. 5 is the schematic diagram of the detection route on the transparent substrate of the beam modulation element of the optical projection mould group in Fig. 4.

Fig. 6 is the structural schematic diagram for the optical projection mould group that the 5th embodiment of the utility model provides.

Fig. 7 is the structural schematic diagram for the optical projection mould group that the utility model sixth embodiment provides.

Fig. 8 is the structural schematic diagram for the optical projection mould group that the 7th embodiment of the utility model provides.

Fig. 9 is the top view of the light-source structure of the group of optical projection mould described in Fig. 8.

Figure 10 is the structural schematic diagram for the optical projection mould group that the 8th embodiment of the utility model provides.

Figure 11 is the top view of the light-source structure of the group of optical projection mould described in Figure 10.

Figure 12 is the structural schematic diagram for the sensing device that the 9th embodiment of the utility model provides.

Figure 13 is the functional block diagram of sensing device described in Figure 12.

Figure 14 is a kind of step flow chart of method for sensing provided by the utility model.

Figure 15 is the structural schematic diagram for the equipment that the tenth embodiment of the utility model provides.

Specific embodiment

The utility model patent application requires the applying date on July 30th, 2018, application No. is 201821217761.2, realities The country with the earlier application that New Name is " a kind of light-source structure, optical projection mould group, biological identification device and equipment " is excellent It first weighs, all the elements of the part application are described herein by reference.

The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this Novel limitation.In the description of the present invention, it should be understood that term " first ", " second " are only used for describing, without It can be interpreted as indication or suggestion relative importance or implicitly indicate the quantity of indicated technical characteristic or put in order.By This defines " first ", the technical characteristic of " second " can explicitly or implicitly include one or more technology Feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific limit It is fixed.

In the description of the present invention, it should be noted that unless otherwise specific regulation or limiting, term " peace Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integration Connection；It can be mechanical connection, be also possible to be electrically connected or be in communication with each other；It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements or the interaction relationship between two elements.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model. In order to simplify the disclosure of the utility model, hereafter only to the component of specific examples and being set for describing.Certainly, they are only Example, and purpose does not lie in limitation the utility model.In addition, the utility model can reuse reference in different examples Number and/or reference letter, this reuse are to simplify and clearly state the utility model, itself does not indicate institute The particular kind of relationship between various embodiments and/or setting discussed.In addition, the utility model is provided in the following description Various specific techniques and material are only the example for realizing technical solutions of the utility model, but those of ordinary skill in the art answer This recognizes that the technical solution of the utility model can also be by other techniques for not describing hereafter and/or other materials come real It is existing.

Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner In formula.In the following description, many details are provided so as to fully understand the embodiments of the present invention.So And one of ordinary skill in the art would recognize that, even if without one or more in the specific detail, or using other knots Structure, constituent element etc. can also practice the technical solution of the utility model.In other cases, it is not shown in detail or describes known knot Structure or operation to avoid fuzzy the utility model emphasis.

It should be understood that embodiments described herein and/or method are exemplary in itself, it is not construed as pair The limitation of technical solutions of the utility model.Embodiment or method described herein are only the utility model the relevant technologies thought One of numerous technical solutions covered are a variety of, therefore each step of described method and technology scheme can be according to The order indicated executes, and can execute, may be performed simultaneously, or be omitted in some cases according to other order, on The change stated is regarded as the range that the utility model technical solution claimed is covered.

As shown in Figure 1, the utility model first embodiment provides a kind of light-source structure 1, for emitting light beam to one It is sensed on measured target object.The light beam can be the light beam with specific wavelength according to sensing principle and application scenarios. In the present embodiment, the light beam is used to sense the three-dimensional information of measured target object, can be infrared or near-infrared wavelength light Beam, wave-length coverage are 750 nanometers (Nanometer, nm) to 1650nm.

The light-source structure 1 includes the first emission part 10 and the second emission part 12.First emission part 10 issues first Light beam is used to form the flood beam of optical power detection.The flood beam is projected on measured target object tested for sensing The floodlight image of object.For example, the flood beam can be used for sensing whether the measured target object is face.Described second The second light beam that emission part 12 issues is used to form the pattern beam that predetermined pattern can be projected on measured target object.It is described Predetermined pattern can be used for the three-dimensional information for sensing the measured target object.

First emission part 10 is formed in the same substrate 14 with the second emission part 12 or is connected with each other to be integrated into Overall structure.The first light emitting region 122 in the middle part of semiconductor base 14 is defined on the semiconductor base 14 and is enclosed Around the second light emitting region 102 of first light emitting region 122 setting.

The integration mode of first emission part 10 and the second emission part 12 includes being directly connected to, be indirectly connected with or distinguishing shape At on the same substrate 14 etc..In the present embodiment, first light beam and the second light beam are the identical near-infrared of wavelength Light.

In the present embodiment, first emission part 10 includes that multiple flood beams for emitting the first light beam shine Body 100.Second emission part 12 includes multiple for emitting the pattern beam illuminator 120 of the second light beam.The floodlight light Beam illuminator 100 and pattern beam illuminator 120 are formed on the same semiconductor base 14.The flood beam illuminator 100 are uniformly distributed in the second light emitting region 102 of semiconductor base 14 according to preset same intervals.The pattern beam hair Body of light 120 is randomly distributed in the first light emitting region 122 of the semiconductor base 14.

The flood beam illuminator 100 and pattern beam illuminator 120 can be semiconductor laser.Preferably, exist In present embodiment, the flood beam illuminator 100 and pattern beam illuminator 120 are vertical cavity surface emitting laser (Vertical Cavity Surface Emitting Laser, VCSEL), on the semiconductor base 14 by photoetching and The techniques such as etching are made.The figure that the flood beam and pattern beam illuminator 120 that the flood beam illuminator 100 issues issue Case light beam is that wavelength is identical infrared or near infrared light, wave-length coverage are 750nm to 1650nm.

In the present embodiment, first light emitting region 122 positioned at 14 middle part of semiconductor base is rectangle.Described Two light emitting regions 102 are correspondingly arranged at four edges of the first light emitting region 122.The flood beam illuminator 100 is Four corners of two light emitting regions 102 are uniform according to same intervals along two sides of each corner in the second light emitting region 102 Arrangement multilayer, it is each that first light emitting region 122 as dotted line described in Fig. 1 surrounded envelopes the first light emitting region 102 Four right angle frame bar-shaped zones at a right angle.The pattern beam illuminator 102 is irregularly arranged in the first light emitting region 122 Cloth, for issuing second light beam with irregular distribution pattern.

It is provided on the semiconductor base 14 and connect with external circuit for controlling in first light emitting region 122 The first luminous pad 104 of flood beam illuminator 100.It is provided with to connect with external circuit on the semiconductor base 14 and be used for Control the second pad 124 that the pattern beam illuminator 120 in second light emitting region 102 shines.So present embodiment In be located at the first light emitting region 122 in pattern beam illuminator 120 and the flood beam in the second light emitting region 102 Illuminator 100 can independently be worked by different control signals.

As shown in Fig. 2, the utility model second embodiment provides a kind of light-source structure 5, with first embodiment In light-source structure 1 it is essentially identical, the main distinction be second light emitting region 502 be the semiconductor base 54 be formed with Other regions on the surface of illuminator other than the first light emitting region 522.The flood beam illuminator 500 setting is the In two light emitting regions 502.The pattern beam illuminator 520 is arranged in first light emitting region 522.The flood beam Illuminator 500 and pattern beam illuminator 520 are equably arranged all in accordance with preset same intervals.

In the present embodiment, the second light beam that the pattern beam illuminator 520 of first light emitting region 522 is issued Irregular distribution light can be projected on measured target object by being equipped with the optical element above light-source structure 5 and being formed Spot pattern, the striped design of regular array or the pattern beam along the cross one another regular grid pattern of different directions.

It is understood that the pattern in the first light emitting region 522 is arranged in other embodiments out not shown Light beam illuminator 520 can also be irregularly distributed.

It is understood that it is not shown go out other embodiments in, the flood beam illuminator 500 can also be by It is evenly distributed in the first light emitting region 522 according to preset same intervals.The pattern beam illuminator 520 is randomly distributed In the second light emitting region 502.

Also referring to Fig. 1 and Fig. 3, the utility model third embodiment provides a kind of light-source structure 8, with first Light-source structure 1 in embodiment is essentially identical, and the main distinction is that second emission part 82 includes that setting shines first Single pattern beam illuminator 820 in region 822, the pattern beam illuminator 820 is the wide face type VCSEL of single hole, with generation For the pattern beam illuminator 120 being randomly distributed in the first light emitting region 122 described in first embodiment.First hair Penetrating portion 80 includes the single flood beam illuminator 800 that setting is respectively corresponded in each first light emitting region 802, described each general Light light beam illuminator 800 is the wide face type VCSEL of single hole, to replace in the second light emitting region 102 described in first embodiment It is multiple according to the evenly arranged flood beam illuminator 100 of preset same intervals.The wide face type VCSEL of single hole only one Lightening hole, but shine aperture it is larger, several times in first embodiment as flood beam illuminator 100 one of them VCSEL luminescence unit.The illumination effect of the wide face type VCSEL of single hole is similar to the uniform area source of luminous intensity.The list The light-emitting surface shape of the wide face type VCSEL in hole can be the shape of rule, such as rectangle；It may be irregular shape, such as The right angle moulding shape of second light emitting region 802 in the present embodiment.

As shown in figure 4, the 4th embodiment of the utility model provides a kind of optical projection mould group 11, it is specific for projecting It is sensed on light beam to measured target object.The optical projection mould group 11 include beam modulation element 110 and above-mentioned first to Light-source structure 1 in third embodiment.

The beam modulation element 110 includes diffusion part 111 and patterning portion 112.The 111 corresponding light source knot of diffusion part First emission part 10 of structure 1 is arranged, the first light beam for issuing the flood beam illuminator 100 of the first emission part 10 Diffuse to form the flood beam of optical power detection.Second emission part 12 of the 112 corresponding light source structure 1 of patterning portion is set It sets, the second light beam formation for issuing the pattern beam illuminator 120 of the second emission part 12 can be in measured target The pattern beam of predetermined pattern is projected on object with the three-dimensional information for sensing measured target object.

It is arranged in the first light emitting region 122 corresponding to the pattern beam illuminator 120 to issue and be used to form pattern Second light beam of light beam, the flood beam illuminator 100 are arranged in the second light emitting region 102 to issue and be used to form floodlight The middle position of beam modulation element 110 is arranged in exist with setting in the case where first light beam of pattern, the patterning portion 112 Pattern beam illuminator 120 in first light emitting region 122 is corresponding.The diffusion part 111, which surrounds, is arranged in patterning portion 112 Periphery is with corresponding with the flood beam illuminator 100 being arranged in the second light emitting region 102.

The function of the patterning portion 112 and diffusion part 111 in the corresponding position of transparent substrate 113 by forming specifically Optical grains are realized.In the present embodiment, the patterning portion 112 of the beam modulation element 110 and diffusion part 111 are arranged On the same transparent substrate 113.That is, the middle position of the transparent substrate 113 is formed with the figure for rearrangement light field Case optical grains 1120 are used as the patterning portion 112, and the transparent substrate 113 is in the patterned optical lines 1120 Periphery position corresponding with 1 first light emitting region 102 of light-source structure is formed with the diffusion optical grains with light diffusion 1100 are used as the diffusion part 111.The patterned optical lines 1120 including but not limited to diffraction optics lines, optics is micro- Lens array, grating and combinations thereof.

As shown in figure 5, detection route 134 can also be formed on the surface of the transparent substrate 113.The detection route can It is made of an electrically conducting material, which is provided with multiple test points 135.By being detected to any two of them test point 135 Whether 113 surface of transparent substrate that route passes through between the road two o'clock, which has to burst apart etc., influences the flaw of optical element integrality.

As shown in fig. 6, the 5th embodiment of the utility model provides a kind of optical projection mould group 15, implement with the 9th Optical projection mould group 11 in mode is essentially identical, and the main distinction is that the optical projection mould group 15 further includes optical path guiding member Part 16.

The optical path director element 16 is arranged between light-source structure 1 and beam modulation element 110, and with the light source knot At the corresponding position of light-emitting surface of first emission part 10 of structure 1.The optical path director element 16 is used for the first emission part 10 The first light beam guidance of divergent shape outgoing is irradiated to the diffusion part 111 of the beam modulation element 110.The optical path director element 16 setting is the technical solution in order to avoid being closer in the first emission part 10 of light-source structure 1 and the second emission part 12 In, issued from the first emission part 10 be used to form floodlight irradiation the first light beam of a part light can by beam modulation member The patterning portion 112 of part 110 projects away the pattern beam for forming luminous intensity irregular distribution, to influence flood beam Uniformity.The optical path director element 16 includes but is not limited to prism, lenticule and grating.The optical path director element 16 is set Region is set to be consistent with the region where the first emission part 10 of light-source structure 1.

As shown in fig. 7, the utility model sixth embodiment provides a kind of optical projection mould group 17, implement with the 4th Optical projection mould group 11 in mode is essentially identical, and the main distinction is the diffusion part 171 and figure of the beam modulation element 170 Case portion 172 is respectively formed on different transparent substrates.

The transparent substrate for being formed with patterning portion 172 is defined as patterned substrate 1721.The patterned substrate It is formed at position corresponding with the second emission part 12 of light-source structure 1 on 1721 and the light field of light beam is subjected to rearrangement Patterned optical lines 1720.In the present embodiment, 1 middle part of light-source structure is set corresponding to second emission part 12 Situation, the patterned optical lines 1720 are formed in the middle position of patterned substrate 1721.

The transparent substrate for being formed with diffusion part 171 is defined as diffusion substrate 1710.On the diffusion substrate 1710 with The diffusion optical grains 1711 for playing light diffusion are formed at the corresponding position of the first emission part 10 of light-source structure 1. The diffusion substrate 1710 region corresponding with patterned optical lines 1720 on patterned substrate 1721 keeps light transmission, the figure The region corresponding with optical grains 1711 are spread on diffusion substrate 1710 of case substrate 1721 keeps light transmission, is defined as transmission region 1712.In the present embodiment, the light-source structure 1 of the second emission part 12 setting, institute are surrounded corresponding to first emission part 10 Diffusion substrate 1710 is stated to be formed at the periphery position corresponding with 1 first emission part 10 of light-source structure of the transmission region 1712 There are the diffusion optical grains 1711.

The patterned substrate 1721 and diffusion substrate 1710 can be stacked together, and can also be thrown along the optics The projecting light path of shadow mould group 17 is respectively and independently arranged at the different location in optical path.It is understood that needing only assure that described It corresponds to optical grains position on diffusion substrate 1710 and patterned substrate 1721 to be mutually aligned, for diffusion substrate 1710 and pattern Change substrate 1721 not specially require along putting in order for the projecting light path.

As shown in Figure 8 and Figure 9, the 7th embodiment of the utility model provides a kind of optical projection mould group 18, for sending out The pattern beam of predetermined pattern can be projected on measured target object out.The predetermined pattern can be used for sensing described tested The three-dimensional information of object.It can be the light beam with specific wavelength according to sensing principle and application scenarios, the light beam.At this In embodiment, the light beam is used to sense the three-dimensional information of measured target object, can be infrared or near-infrared wavelength light beam, wave Long range is 750 nanometers (Nanometer, nm) to 1650nm.

The optical projection mould group 18 includes beam modulation element 180 and light-source structure 181.The light-source structure 181 wraps The pattern beam illuminator 1810 for including semiconductor base 1812 and being formed on the semiconductor base 1812.The pattern shines The original beam of the sending optical power detection of body 1810.The original beam of the optical power detection is by setting in light-source structure Beam modulation element 180 above 181 light-emitting surfaces can project the pattern of predetermined pattern to formation after the rearrangement of light field Light beam.The predetermined pattern can be for irregular distribution spot pattern, the striped design of regular array and along different directions One of cross one another regular grid pattern and combinations thereof.

The pattern beam illuminator 1810 can be semiconductor laser.The pattern beam illuminator 1810 is formed in The middle position of semiconductor base 1812.Preferably, in the present embodiment, the pattern beam illuminator 1810 is multiple presses According to the evenly arranged VCSEL luminescence unit of default same intervals, it is formed in by the techniques such as photoetching and etching described semiconductor-based On bottom 1812.The quantitative range of the multiple VCSEL luminescence unit is 2 to 12, is evenly spaced according to default same intervals On the semiconductor base 1812.

The beam modulation element 180 includes substrate 1800 and the patterned optical lines being formed on the substrate 1800 1802.The corresponding pattern beam illuminator 1810 of the patterned optical lines 1802 is configured.The patterned optical The light field of the original beam for the optical power detection that lines 1802 issues pattern beam illuminator 1810 carries out rearrangement, with Form the pattern beam that predetermined pattern can be projected on measured target object.The patterned optical lines 1802 is in substrate Range of exposures of the coverage area at least more than the pattern beam illuminator 1810 on beam modulation element 180 on 1800, The original beam is completely converted into pattern beam.The patterned optical lines 1802 includes but is not limited to diffraction optics Lines, optical micro lens array, grating and combinations thereof.

It is understood that the optical projection mould group 18 can also include being arranged in light-source structure 181 and beam modulation Optical element 183 between element 180 for collimating or expanding, so that the original beam that light-source structure 181 is issued is entering It is basic before being mapped to beam modulation element 180 to keep collimating and meet preset light hole diameter requirement.

As shown in Figure 10 and Figure 11, the 8th embodiment of the utility model provides a kind of optical projection mould group 19, with Optical projection mould group 18 in 7th embodiment is essentially identical, and the main distinction is that the light-source structure 191 includes being formed in A pattern beam illuminator 1910 on semiconductor base 1912.The single pattern beam illuminator is the wide face type of single hole VCSEL.Described wide only one lightening hole of face type VCSEL of single hole, but the aperture that shines is larger, several times in the 7th embodiment One of VCSEL luminescence unit as pattern beam illuminator.The illumination effect of the wide face type VCSEL of single hole is equal to The uniform area source of luminous intensity, issues the original beam of optical power detection.

As shown in FIG. 12 and 13, the 9th embodiment of the utility model provides a kind of sensing device 21, is used to feel Survey the spatial information of measured target object.The spatial information includes but is not limited to the depth information on measured target object surface, is tested Object location information in space, the dimension information etc. of measured target object other three-dimensional letters relevant to measured target object Breath.The spatial information of the measured target object sensed can be used for identifying measured target object or construct the three-dimensional of measured target object Model.

The sensing device 21 includes the optical projection mould group 11 as provided by above-mentioned 4th to the 8th embodiment and sense Survey mould group 210.The optical projection mould group 11 is for projecting particular beam to measured target object.The sensing mould group 210 is wrapped Include camera lens 211, imaging sensor 212 and image analysis processor 213.Described image sensor 213 senses institute by camera lens 211 State the image that particular beam is formed on measured target object.What the analysis of described image analysis processor 213 was sensed is incident upon Image on measured target object obtains the three-dimensional information of measured target object.

In the present embodiment, the sensing device 21 is to sense the three-dimensional information on measured target object surface and identify accordingly The 3D face authentification device of measured target object identity.

The particular beam includes the flood beam of even intensity and can project default figure on measured target object The pattern beam of case.The sensing mould group 210 according to the image that the flood beam sensed is formed on measured target object come Identify whether close measured target object is face.The sensing mould group 210 is according to the pattern beam sensed tested The change in shape of the predetermined pattern projected on object is to analyze the three-dimensional information on measured target object surface and accordingly to quilt It surveys object and carries out face recognition.

Also referring to Fig. 8, Figure 10 and Figure 14, the utility model also provides a kind of using provided by above embodiment Sensing device 18 senses the method for sensing of the three-dimensional information of measured target object.The method for sensing includes the following steps:

Step S01 issues the original beam of optical power detection.The original beam is by being arranged in pattern beam illuminator 1810 towards beam modulation element 180 patterned optical lines 1802 issue.

The original beam requires not impact measured target object by the interference of visible light and should reducing to the greatest extent.? In present embodiment, the original beam is infrared or near infrared light, and wave-length coverage is 750nm to 1650nm.

The pattern beam illuminator 1810 can be multiple according to the evenly arranged VCSEL luminescence unit of same intervals, Issue evenly spaced multiple beamlets respectively to form the original beam of optical power detection.

The pattern beam illuminator 1910 can also be the wide face type VCSEL of a single hole.The wide face type VCSEL of single hole It is formed with single lightening hole, the aperture of lightening hole is larger, several times in the aperture of above-mentioned one of VCSEL luminescence unit, Capable of emitting the second light beam that optical power detection is issued similar to area source.

The light field of the optical power detection of the original beam is carried out rearrangement in measured target object by step S02 On project preset pattern.

The predetermined pattern includes but is not limited to the spot pattern or evenly arranged candy strip being randomly distributed.

The patterned optical lines 1802 is formed on the substrate 1800 of beam modulation element 180 and the pattern beam The corresponding position of illuminator 1810.The patterned optical lines 1802 including but not limited to diffraction optics lines, optics is micro- Lens array, grating etc..

It is multiple luminous single according to the evenly arranged VCSEL of default same intervals for the pattern beam illuminator 1810 The situation of member, the light intensity for the original beam that the patterned optical lines 1802 issues the pattern beam illuminator 1810 are equal The light field rearrangement of even distribution forms the pattern light that the spot pattern of irregular distribution can be projected on measured target object Beam.

It is multiple luminous single according to the evenly arranged VCSEL of default same intervals for the pattern beam illuminator 1810 The situation of member, the patterned optical lines 1802 can also shine the VCSEL along the arrangement of the same preset direction single The light beam that member issues respectively is fused to the pattern beam with regular array candy strip.

It is multiple according to the evenly arranged VCSEL luminescence unit of same intervals for the pattern beam illuminator 1810 Situation, the patterned optical lines 1802 can also send out the VCSEL along the arrangement of cross one another two preset directions The light that light unit is issued is fused the pattern beam to be formed and can project regular grid pattern.

The case where type VCSEL in face wide for a single hole for the pattern beam illuminator 1910, the patterned optical The light field rearrangement shape of the optical power detection for the original beam that lines 1802 issues the pattern beam illuminator 1810 At the pattern beam for the spot pattern that can project irregular distribution on measured target object.

Step S03 obtains the patterning light image of the predetermined pattern projected on the measured target object.

The patterning light image of the measured target object cooperates relevant via the imaging sensor 212 of sensing mould group 210 Camera lens 211 obtains.Described image sensor 212 is the photoelectric sensing to the photaesthesia in the wave-length coverage of the original beam Device.In the present embodiment, described image sensor 212 is infrared or near-infrared image sensor.

Step S04 analyzes acquired patterning light image to sense the three-dimensional information of the measured target object.

The pattern beam is incident upon the patterning formed on measured target object by described image analysis processor 213 respectively The patterning reference picture that light image is formed in the plane with projection is mutually compared.

Described image analysis processor 213 by the patterning light image that is formed on analysis measured target object be formed in it is flat Deviation situation of the patterning reference picture on respective corresponding position on face calculates measured target object in the corresponding position Three-dimensional information.

Step S05, according to being patterned on the measured target object sensed in light image institute coverage area at each position Three-dimensional information build up the threedimensional model of measured target object.

As shown in figure 15, the tenth embodiment of the utility model provides a kind of equipment 22, for example, mobile phone, laptop, Tablet computer, touch-control interaction screen, door, the vehicles, robot, automatic numerical control lathe etc..The equipment 19 includes at least one Sensing device 18 provided by above-mentioned 12nd embodiment.The equipment 19 is used for the sensing result according to the sensing device 18 Corresponding function is executed to correspond to.The corresponding function unlocks after including but not limited to identifying user's identity, payment, starts in advance If application program, avoidance, using deep learning technology judge the mood and health of user after identification user's countenance Any one or more in situation.

In the present embodiment, the sensing device 21 is to sense the three-dimensional information on measured target object surface and identify accordingly The 3D face authentification device of measured target object identity.The equipment 22 is the mobile phone equipped with the 3D face authentification device, notes Electric terminals, door, the vehicles, safety check, the entry and exit such as this computer, tablet computer, touch-control interaction screen etc. are related to passing in and out permission Equipment.

It needs to be respectively set floodlight transmitter with the existing light-source structure for sensing three-dimensional information and light pattern emits Device is compared, and light-source structure 1 provided by the utility model integrates the transmitter for projecting flood beam and pattern beam, The not only smaller design for being conducive to equipment of volume, but also also further reduce the cost of device.

In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.

The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all It is practical new to should be included in this for made any modifications, equivalent replacements, and improvements etc. within the spirit and principles of the utility model Within the protection scope of type.

Claims (11)

1. a kind of sensing device, it is characterised in that: for sensing the three-dimensional information of measured target object comprising optical projection mould group And sensing mould group, the optical projection mould group includes beam modulation element and light-source structure, and the light-source structure includes semiconductor Substrate and the pattern beam illuminator for forming sending optical power detection light beam on a semiconductor substrate, the beam modulation element Patterned optical lines including substrate and formation on the substrate, the patterned optical lines correspond to the pattern beam Illuminator is configured, and the light field for the optical power detection that the patterned optical lines issues pattern beam illuminator carries out Being formed after rearrangement, there is the pattern beam of predetermined pattern to be projected on measured target object, and the sensing mould group is thrown by analysis It penetrates the predetermined pattern on measured target object and senses measured target object with the situation of change of measured target object three-dimensional shape Three-dimensional information.

2. sensing device as described in claim 1, which is characterized in that the predetermined pattern is selected from irregular distribution hot spot figure Case, the striped design of regular array and in the pattern beam of the cross one another regular grid pattern of different directions one Kind and combinations thereof.

3. sensing device as described in claim 1, which is characterized in that the pattern beam illuminator is multiple according to default phase With the evenly arranged vertical cavity surface emitting laser luminescence unit in interval.

4. sensing device as claimed in claim 3, which is characterized in that the multiple vertical cavity surface emitting laser luminescence unit Quantitative range be 2 to 12.

5. sensing device as described in claim 1, which is characterized in that the pattern beam illuminator is the wide face type of a single hole Vertical cavity surface emitting laser.

6. sensing device as described in claim 1, which is characterized in that the pattern beam illuminator is formed in semiconductor base Middle position.

7. sensing device as described in claim 1, which is characterized in that the light-source structure further includes multiple for issuing light intensity It is uniformly distributed the flood beam illuminator of light beam, the flood beam illuminator and pattern beam illuminator are formed in identical half In conductor substrate, and it can be independently controlled respectively luminous.

8. sensing device as claimed in claim 7, which is characterized in that the pattern beam illuminator is formed in semiconductor base Middle part, the flood beam illuminator around the pattern beam illuminator it is symmetrical.

9. sensing device as claimed in claim 7, which is characterized in that the beam modulation element further includes being formed on substrate The diffusion optical grains of corresponding flood beam illuminator, what the diffusion optical grains were issued the flood beam illuminator The flood beam that original beam diffuses to form optical power detection is projected on measured target object.

10. a kind of equipment, it is characterised in that: it includes sensing device as in one of claimed in any of claims 1 to 9, described The three-dimensional information of the measured target object that equipment is sensed according to sensing device executes corresponding function.

11. equipment as claimed in claim 10, it is characterised in that: the corresponding function includes solving after identifying user's identity Deep learning technology judgement use is utilized after locking, pay, starting preset application program, avoidance, identifying user's countenance Any one or more in the mood and health condition of person.