CN207780463U - Laser emitter, optoelectronic device and depth camera - Google Patents
Laser emitter, optoelectronic device and depth camera Download PDFInfo
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- CN207780463U CN207780463U CN201820031413.XU CN201820031413U CN207780463U CN 207780463 U CN207780463 U CN 207780463U CN 201820031413 U CN201820031413 U CN 201820031413U CN 207780463 U CN207780463 U CN 207780463U
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Abstract
The utility model discloses a kind of laser emitter, optoelectronic device and depth cameras.Laser emitter includes a plurality of light-emitting elements of semiconductor substrate and setting over the substrate.Multiple light-emitting component irregular distributions, multiple light-emitting components are divided into multigroup, light-emitting component regular distribution described in every group.When the laser emitter works, at least one set of light-emitting component is by driving transmitting light beam to form a frame pattern, and pattern forms laser pattern for merging described in multiframe.In the laser emitter of the utility model embodiment, multiple light-emitting component irregular distributions, when laser emitter works, the light-emitting component of at least one set of regular distribution is by driving transmitting light beam to form a frame pattern, multiframe pattern merges to form laser pattern, in this way, laser pattern is irregular pattern, the irrelevance that laser pattern can be improved, to improve the speed and precision of the depth image for obtaining the laser pattern.
Description
Technical field
The utility model is related to optical field, more particularly to a kind of laser emitter, optoelectronic device and depth camera.
Background technology
The optoelectronic devices such as laser-projector are used to the optical design to object space transmitting setting, based on optics
Three-dimensional measurement field, optoelectronic device is widely applied.Optoelectronic device is generally by light source, collimating element and diffraction optics
Element forms, and wherein light source can be single edge emitting laser light source, can also be to be made of multiple vertical cavity surface-emitting lasers
Face battle array laser light source etc..Optoelectronic device based on single edge emitting laser light source can emit the higher laser figure of irrelevance
Case, but its volume can be significantly increased with the increase of output power, and the uniformity of the laser pattern is poor；And based on by extremely
The optoelectronic device of few two vertical cavity surface-emitting laser light sources can be launched equal-wattage with smaller volume and have higher
The laser pattern of uniformity, but the irrelevance of the laser pattern is relatively low, and the direct shadow of height of the irrelevance of laser pattern
It rings the height of its depth image precision and obtains the speed of depth image speed.
Utility model content
A kind of laser emitter of the utility model embodiment offer, optoelectronic device and depth camera.
The laser emitter of the utility model embodiment includes：
Semiconductor substrate；With
A plurality of light-emitting elements over the substrate, multiple light-emitting component irregular distributions, multiple hairs are set
Optical element is divided into multigroup, light-emitting component regular distribution described in every group, when the laser emitter works, described at least one set
For light-emitting component by driving transmitting light beam to form a frame pattern, pattern described in multiframe forms laser pattern for merging.
In some embodiments, the light-emitting component includes point light source light-emitting device.
In some embodiments, light-emitting component described in every group is driven separately；Or at least one set of light-emitting component quilt
It is operated alone.
In some embodiments, light-emitting component described in every group is used to be actuated to emit the light beam of different light intensity；Or extremely
Light-emitting component described in one group few is used to be actuated to emit the light beam of different light intensity.
In some embodiments, light-emitting component described in every group is used to be actuated to the light beam of transmitting different wave length；Or extremely
Light-emitting component described in one group few is used to be actuated to the light beam of transmitting different wave length.
In some embodiments, light-emitting component described in every group has different light-emitting areas；Or at least one set of hair
Optical element has different light-emitting areas.
The optoelectronic device of the utility model embodiment includes：
Substrate；With
Laser emitter described in any of the above-described embodiment, the laser emitter setting is on the substrate.
The optoelectronic device of the utility model embodiment includes：
Substrate；
Laser emitter described in any of the above-described embodiment, the laser emitter setting is on the substrate；
Collimating element, the collimating element are arranged in the substrate close to the side of the laser emitter；With
Diffraction optical element, the collimating element is between the laser emitter and the diffraction optical element, institute
Diffraction optical element is stated for projecting the light beam emitted by the light-emitting component to generate the pattern.
In some embodiments, the quantity of the collimating element is one, and a collimating element shines with described
Element arrays correspond to；Or
The quantity of the collimating element is multiple, and multiple collimating elements are divided into multigroup, collimating element described in every group
It is corresponding with light-emitting component described in every group.
In some embodiments, the quantity of the collimating element is one, and a collimating element shines with described
Element arrays correspond to, the collimating element and the corresponding light-emitting device array interval；
The quantity of the collimating element is multiple, and multiple collimating elements are divided into multigroup, collimating element described in every group
Corresponding with light-emitting component described in every group, the collimating element is integrated over the substrate with the corresponding light-emitting component respectively.
In some embodiments, when the quantity of the collimating element is multiple, collimating element described in every group has not
Same focal length；Or at least one set of collimating element has different focal lengths.
The depth camera of the utility model embodiment includes：
Optoelectronic device described in any of the above-described embodiment；
Image acquisition device, described image collector is for described in acquiring and being projected into object space from the optoelectronic device
Pattern；With
The processor being connect respectively with the optoelectronic device and described image collector, the processor are used for multiframe
The pattern merges to form the laser pattern and handle the laser pattern to obtain depth image.
In the laser emitter of the utility model embodiment, optoelectronic device and depth camera, multiple light-emitting components
Irregular distribution, when laser emitter works, the light-emitting component of at least one set of regular distribution emits light beam to form one by driving
Frame pattern, multiframe pattern merge to form laser pattern, in this way, laser pattern is irregular pattern, can improve laser pattern
Irrelevance, to improve obtain the laser pattern depth image speed and precision.
The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partly will be under
Become apparent in the description in face, or is recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model can retouch embodiment from conjunction with following accompanying drawings
It will be apparent and be readily appreciated that in stating, wherein：
Fig. 1 is the structural schematic diagram of the laser emitter of the utility model certain embodiments；
Fig. 2 is the structural schematic diagram of the optoelectronic device of the utility model certain embodiments；
Fig. 3 is the structural schematic diagram of the optoelectronic device of the utility model certain embodiments；
Fig. 4 is the structural schematic diagram of the laser emitter of the utility model certain embodiments；
Fig. 5 is the schematic diagram for the fraction of laser light pattern that the optoelectronic device of the utility model certain embodiments generates；
Fig. 6 is the structural schematic diagram of the laser emitter of the utility model certain embodiments；
Fig. 7 is the structural schematic diagram of the laser emitter of the utility model certain embodiments；
Fig. 8 is the part-structure schematic diagram of the laser emitter of the utility model certain embodiments；
Fig. 9 is the module diagram of the depth camera of the utility model certain embodiments；
Main element and symbol description：
Laser emitter 10, substrate 11, light-emitting component 12；
Optoelectronic device 100, substrate 20, collimating element 30, diffraction optical element 40；
Depth camera 1000, image acquisition device 200, processor 300.
Specific implementation mode
The embodiment of the utility model 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 embodiment of the utility model, and cannot understand
For the limitation of the embodiment to the utility model.
In the description of the embodiment of the utility model, it is to be understood that term "center", " longitudinal direction ", " transverse direction ",
" length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside", " clockwise ", " counterclockwise " is that orientation based on ... shown in the drawings or position are closed
System is merely for convenience of the embodiment of description the utility model and simplifies to describe, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
The limitation of embodiment.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with
Express or implicitly include one or more feature.It is " more in the description of the embodiment of the utility model
It is a " it is meant that two or more, unless otherwise specifically defined.
In the description of the embodiment of the utility model, it should be noted that unless otherwise clearly defined and limited,
Term " installation ", " connection ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, can also be to be electrically connected or can mutually communicate；Can be directly connected to, also may be used
Can be the interaction relationship of the connection or two elements inside two elements to be indirectly connected with by intermediary.For
For those skilled in the art, it can understand above-mentioned term in the embodiment of the utility model as the case may be
Concrete meaning.
In the embodiment of the utility model unless specifically defined or limited otherwise, fisrt feature is in second feature
"upper" or "lower" may include that the first and second features are in direct contact, can also include the first and second features not be direct
It contacts but passes through the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and
" above " includes fisrt feature right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second
Feature.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and tiltedly
Lower section, or be merely representative of fisrt feature level height and be less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the embodiment of the utility model
Different structure.In order to simplify the utility model embodiment disclosure, hereinafter to the component of specific examples and be arranged into
Row description.Certainly, they are merely examples, and purpose does not lie in limitation the utility model.In addition, the implementation of the utility model
Mode can in different examples repeat reference numerals and/or reference letter, this repetition be for purposes of simplicity and clarity,
The relationship between discussed various embodiments and/or setting itself is not indicated.In addition, the embodiment of the utility model carries
The example of the various specific techniques and material that have supplied, but answering those of ordinary skill in the art may realize that other techniques
With and/or other materials use.
It is being served as a contrast referring to Fig. 1, the laser emitter 10 of the utility model embodiment includes semiconductor substrate 11 and setting
A plurality of light-emitting elements 12 on bottom 11.A plurality of light-emitting elements 12 be randomly distributed, a plurality of light-emitting elements 12 be divided into it is multigroup, every group
12 regular distribution of light-emitting component.When laser emitter 10 works, at least one set of light-emitting component 12 is by driving transmitting light beam with shape
At a frame pattern, multiframe pattern forms laser pattern for merging.
Also referring to Fig. 2 and Fig. 3, the laser emitter 10 of the utility model embodiment can be used for optoelectronic device 100.
Optoelectronic device 100 includes substrate 20, laser emitter 10, collimating element 30 and diffraction optical element 40.Laser emitter 10 is set
It sets on the base plate 20, collimating element 30 is arranged in the side of the close laser emitter 10 of substrate 20, and collimating element 30, which is located at, to swash
Between optical transmitting set 10 and diffraction optical element 40, diffraction optical element 40 be used to project the light beam that is emitted by light-emitting component 12 with
Generate pattern.In other words, the laser emitter 10 of the utility model embodiment can be applied to include 30 He of collimating element
The optoelectronic device 100 of diffraction optical element 40 generates pattern to emit light beam；The laser emitter of the utility model embodiment
10 can also be applied to that laser emitter 10 is used arbitrarily to emit the optoelectronic device 100 of light beam, at this point, optoelectronic device 100 includes
Substrate 20 and laser emitter 10, laser emitter 10 are arranged on the base plate 20.
In the laser emitter 10 and optoelectronic device 100 of the utility model embodiment, a plurality of light-emitting elements 12 are irregular
Distribution, when laser emitter 10 works, the light-emitting component 10 of at least one set of regular distribution emits light beam to form a frame by driving
Pattern, multiframe pattern merge to form laser pattern, in this way, laser pattern is irregular pattern, can improve laser pattern
Irrelevance, to improve the speed and precision of the depth image for obtaining the laser pattern.
Specifically, a plurality of light-emitting elements 12 are at least two light-emitting components 12, and multi-group light-emitting element 12 is sent out at least two groups
Optical element 12.When laser emitter 10 works, each moment at least one set light-emitting component is by driving transmitting light beam to form a frame
Multiple moment of pattern, liaison can form continuous multiframe pattern, and laser pattern is formed to merge.
For example, a plurality of light-emitting elements 12 of irregular distribution are divided into 4 groups, first group of 12, second groups of light-emitting component shines
Element 12, third group light-emitting component 12 and the 4th group of light-emitting component 12 are regular distribution (as shown in Figure 4), wherein rule point
Cloth can be along predetermined direction equidistantly distributed.When laser emitter 10 works, at the first moment, first group of light-emitting component 12
By driving transmitting light beam to form first frame pattern；At the second moment, second group of light-emitting component 12 is by driving transmitting light beam with shape
At the second frame pattern；At the third moment, third group light-emitting component 12 is by driving transmitting light beam to form third frame pattern；The 4th
At the moment, the 4th group of light-emitting component 12 is by driving transmitting light beam to form the 4th frame pattern；……；And so on.First frame pattern,
The merging such as the second frame pattern, third frame pattern and the 4th frame pattern form irregular laser pattern.It so, it is possible to improve laser
The irrelevance of pattern.
In another example a plurality of light-emitting elements 12 of irregular distribution are divided into 4 groups, first group of light-emitting component, 12, second groups of hairs
Optical element 12, third group light-emitting component 12 and the 4th group of light-emitting component 12 are regular distribution (as shown in Figure 4).Laser emitter
When 10 work, at the first moment, first group of light-emitting component 12 is by driving transmitting light beam to form first frame pattern；At second
It carves, second group of light-emitting component 12 and the 4th group of light-emitting component 12 emit light beam to form the second frame pattern by driving；In third
It carves, first group of light-emitting component 12 and second group of light-emitting component 12 emit light beam to form third frame pattern by driving；At the 4th
It carves, third group light-emitting component 12 is by driving transmitting light beam to form the 4th frame pattern；At the 5th moment, second group of light-emitting component
12, third group light-emitting component 12 and the 4th group of light-emitting component 12 emit light beam to form the 5th frame pattern by driving；At the 6th
It carves, first group of light-emitting component, 12, second groups of light-emitting components 12, third group light-emitting component 12 and the 4th group of light-emitting component 12 are driven
Emit light beam to form the 6th frame pattern；……；And so on.First frame pattern, the second frame pattern, third frame pattern, the 4th
The merging such as frame pattern, the 5th frame pattern, the 6th frame pattern form irregular laser pattern.It so, it is possible to improve laser pattern
Irrelevance.
It should be pointed out that the irrelevance of laser pattern refers to the laser that the light beam that each light-emitting component 12 emits generates
Pattern has higher uniqueness, which includes the uniqueness of shape, size, arrangement position of laser pattern etc..For example,
The irrelevance of laser pattern a and laser pattern b is less than the irrelevance of laser pattern a and laser pattern c in Fig. 5.
A plurality of light-emitting elements 12 are on the whole irregular distribution, but every group of 12 regular distribution of light-emitting component.Regular distribution
Can be first group of light-emitting component 12 as shown in Figure 1 and first group of light-emitting component 12 as shown in Figure 4 and the luminous member of third group
Part is in matrix distribution (ranks are crisscross, and ranks are orthogonal)；Second group of 12 He of light-emitting component either as shown in Figure 1
Second group of light-emitting component 12 as shown in Figure 4 is distributed in circular；4th group of light-emitting component 12 either as shown in Figure 4 is in flat
Row quadrangle distribution (ranks are crisscross, and angle is not 90 degree between ranks), or arbitrary point with certain rule
Cloth, this is not restricted.It is appreciated that the multi-group light-emitting element 12 for manufacturing regular distribution in the same semiconductor substrate 11 can
To greatly improve manufacture efficiency.In laser emitter 10 as shown in Figure 1, a plurality of light-emitting elements 12 are divided into two groups.First
Group light-emitting component 12 and second group of light-emitting component 12 can be identical or different light-emitting component 12, for example, first group multiple
Light-emitting component 12 is identical, and second group of a plurality of light-emitting elements 12 are identical, first group of light-emitting component 12 and second group of light-emitting component 12
For different light-emitting components 12 (as shown in Figure 1)；Or first group of a plurality of light-emitting elements 12 and second group of multiple luminous members
Part 12 is identical (as shown in Figure 6)；Or first group of a plurality of light-emitting elements 12 are not exactly the same, second group it is multiple shine
Element 12 is not exactly the same, first group of a plurality of light-emitting elements 12 identical (such as Fig. 7 corresponding with second group of a plurality of light-emitting elements 12
It is shown)；Or first group of a plurality of light-emitting elements 12 are entirely different, and second group of a plurality of light-emitting elements 12 are entirely different, and first
The a plurality of light-emitting elements 12 of group are corresponding with second group of a plurality of light-emitting elements 12 identical (as shown in Figure 8) etc., do not limit herein
System.
The quantity of every group of light-emitting component 12 can it is identical, part is identical or entirely different.For example, multiple luminous members
Part 12 is divided into 4 groups, first group of light-emitting component, 12, second groups of light-emitting components 12, third group light-emitting component 12 and the 4th group of hair
The quantity of optical element 12 is N1；Or the quantity of first group of light-emitting component 12 and second group of light-emitting component 12 is N1, third group
The quantity of light-emitting component 12 is N2, and the quantity of the 4th group of light-emitting component 12 is N3 (as shown in figure 4, N1=9, N2=16, N3=
12)；Or the quantity of first group of light-emitting component 12 is N1, the quantity of second group of light-emitting component 12 is N2, third group light-emitting component
12 quantity is N3, and the quantity of the 4th group of light-emitting component 12 is N4, wherein N1 ≠ N2 ≠ N3 ≠ N4.
The density for the laser pattern that spacing between a plurality of light-emitting elements 12 can be formed as needed determines.For example, more
Spacing between a light-emitting component 12 can be configured such that gap is smaller and is not overlapped between each laser pattern to be formed.
In some embodiments, light-emitting component 12 includes point light source light-emitting device, and point light source light-emitting device can be vertical
Straight cavity surface-emitting laser (Vertical-Cavity Surface-Emitting Laser, VCSEL) is other kinds of
Point light source light-emitting device.
Specifically, VCSEL is a kind of new laser of vertical surface light extraction, with traditional edge-emitting lasers, example
If distributed feedback laser (Distributed Feedback Laser, DFB) is compared, the light emission direction and substrate of VCSEL
11 is vertical, can relatively easily realize the integrated of high density two-dimensional array, realizes higher power output, and since it is compared to side
Emission type laser possesses smaller volume, is integrated into miniature electric component to easily facilitate；VCSEL and light simultaneously
Fine coupling efficiency is high, and without the beam shaping system of complex and expensive, and manufacturing process is compatible with light emitting diode, greatly
Reduce production cost greatly.
In some embodiments, every group of light-emitting component 12 is driven separately.For example, a plurality of light-emitting elements 12 are divided into 4
Group, the respective quilt of first group of light-emitting component, 12, second groups of light-emitting components 12, third group light-emitting component 12 and the 4th group of light-emitting component 12
It is operated alone.
In some embodiments, at least one set of light-emitting component 12 is driven separately.For example, a plurality of light-emitting elements 12 divide
It it is 4 groups, first group of light-emitting component 12 and second group of light-emitting component 12 are respectively driven separately, third group light-emitting component 12 and the 4th
Group light-emitting component 12 is driven together.In other words, third group light-emitting component 12 and the 4th group of light-emitting component 12 are sent out simultaneously every time
Irradiating light beam.
Multi-group light-emitting element 12 can respectively be controlled by the same controller or multi-group light-emitting element 12 is respectively by multiple controls
Device control processed, i.e. every group of light-emitting component 12 correspond to control by a controller.Controller is for directly driving the hair of light-emitting component 12
Irradiating light beam, or multiple conductors by being connect respectively with multi-group light-emitting element 12 drive light-emitting component 12 to emit light beam.Work as control
When device processed drives light-emitting component 12 by conductor, multiple conductors are formed on substrate 11 and are connect with light-emitting component 12.For example, swashing
Optical transmitting set 10 includes 6 groups of light-emitting components 12, then the quantity of conductor is 6, and each conductor connects one group of light-emitting component 12, control
Device is used to apply control signal on conductor to drive one group of light-emitting component 12 corresponding with the conductor to emit light beam.In this practicality
In novel embodiment, the light-emitting component 12 that controller drives as needed applies control signal, example on corresponding each conductor
Such as, at the second moment, controller and the corresponding conductor of second group of light-emitting component 12 and corresponding with the 4th group of light-emitting component 12
Apply control signal on conductor, so that second group of light-emitting component 12 and the 4th group of light-emitting component 12 emit light beam to form second
Frame pattern.
In some embodiments, every group of light-emitting component 12 is used to be actuated to emit the light beam of different light intensity.
Specifically, in the utility model embodiment, the intensity of the light beam of every group of light-emitting component 12 transmitting can be free
Control.For example, referring to Fig. 4, a plurality of light-emitting elements 12 are divided into 4 groups, first group of light-emitting component 12 is for emitting light intensity
The light beam of L1, second group of light-emitting component 12 are used to emit the light beam that light intensity is L2, and third group light-emitting component 12 is for emitting light intensity
For the light beam of L3, the 4th group of light-emitting component 12 is used to emit the light beam that light intensity is L4, wherein L1 ≠ L2 ≠ L3 ≠ L4.In this way, logical
The intensity proportioning of the light beam for the light-emitting component 12 for controlling different groups is crossed, light beam is passing through collimating element 30, diffraction optics member successively
After part 40, hot spot of different shapes is can get, generates the higher laser pattern of irrelevance.Certainly, in other embodiments,
First group of light-emitting component 12 can be used for emitting the light beam that light intensity is L1, and second group of light-emitting component 12 and third group light-emitting component 12 are used
The light beam for being L2 in transmitting light intensity, the 4th group of light-emitting component 12 are used to emit the light beam that light intensity is L3.In other words, at least one set of
Light-emitting component 12 is used to be actuated to emit the light beam of different light intensity.
In some embodiments, every group of light-emitting component 12 is used to be actuated to the light beam of transmitting different wave length.
Specifically, in the utility model embodiment, the wavelength of the light beam of every group of light-emitting component 12 transmitting can be free
Control.For example, referring to Fig. 4, a plurality of light-emitting elements 12 are divided into 4 groups, first group of light-emitting component 12 is λ for launch wavelength
1 light beam, second group of light-emitting component 12 are for launch wavelength for the light beam that launch wavelength is λ 2, third group light-emitting component 12
The light beam of λ 3, the 4th group of light-emitting component 12 is for the light beam that launch wavelength is λ 4, wherein 3 ≠ λ of λ 1 ≠ λ, 2 ≠ λ 4.In this way, passing through
The wavelength proportioning of the light beam of different groups of light-emitting component 12 is controlled, light beam is passing through collimating element 30, diffraction optical element successively
After 40, hot spot of different shapes is can get, generates the higher laser pattern of irrelevance.Certainly, in other embodiments,
One group of light-emitting component 12 can be used for the light beam that launch wavelength is λ 1, and second group of light-emitting component 12 and third group light-emitting component 12 are used for
Launch wavelength is the light beam of λ 2, and the 4th group of light-emitting component 12 is for the light beam that launch wavelength is λ 3.In other words, at least one set of hair
Optical element 12 is used to be actuated to the light beam of transmitting different wave length.
Wherein, the member that shines can be made by changing the temperature of light-emitting component 12 during using laser emitter 10
Part 12 can emit the light beam of different wave length, and under normal circumstances, the temperature of light-emitting component 12 is higher, and the wavelength of the light beam of transmitting is got over
It is long；Also multi-group light-emitting element 12 can be configured to the light beam of transmitting different wave length when manufacturing laser emitter 10, in this way, control
Device processed is applied to the control signal on each conductor can be identical, and the control logic of light-emitting component 12 is relatively simple.
In some embodiments, every group of light-emitting component 12 has different light-emitting areas.
Specifically, in the utility model embodiment, every group of light-emitting component 12 has different light-emitting areas.For example,
Referring to Fig. 4, a plurality of light-emitting elements 12 are divided into 4 groups, the light-emitting area of first group of light-emitting component 12 is S1, and second group shines
The light-emitting area of element 12 is S2, and the light-emitting area of third group light-emitting component 12 is S3, the light-emitting surface of the 4th group of light-emitting component 12
Product is S4, wherein S1 ≠ S2 ≠ S3 ≠ S4.In this way, by configuring different groups of light-emitting component 12 to different light-emitting areas,
Light beam can get hot spot of different shapes successively after collimating element 30, diffraction optical element 40, generate irrelevance compared with
High laser pattern.Certainly, in other embodiments, the light-emitting area of first group of light-emitting component 12 is S1, and second group shines
The light-emitting area of element 12 and third group light-emitting component 12 is S2, and the light-emitting area of the 4th group of light-emitting component 12 is S3.It that is to say
It says, at least one set of light-emitting component 12 has different light-emitting areas.
In some embodiments, every group of light-emitting component 12 be used to be actuated to emit different light intensity, different wave length light
Beam, and there is different light-emitting areas；Or every group of light-emitting component 12 is used to being actuated to emit different light intensity, different wave length
Light beam, and light-emitting area having the same；Or every group of light-emitting component 12 is for being actuated to emit different light intensity, phase co-wavelength
Light beam, and have different light-emitting areas；Or every group of light-emitting component 12 emits identical light intensity, different waves for being actuated to
Long light beam, and there is different light-emitting areas.
Referring to Fig. 2, in some embodiments, the quantity of collimating element 30 is one, a collimating element 30 and hair
Optical component array 12 corresponds to.In this way, manufacturing process is relatively simple.The light beam that at least one set light-emitting component 12 emits every time first passes through
The collimating element 30, then object space is projected to generate a frame pattern by diffraction optical element 40.
Referring to Fig. 3, in some embodiments, the quantity of collimating element 30 is multiple, and multiple collimating elements 30 divide
To be multigroup, every group of collimating element 30 is corresponding with every group of light-emitting component 12.The light beam that at least one set light-emitting component 12 emits every time is first
By collimating element 30 corresponding at least one set light-emitting component 12, then by diffraction optical element 40 be projected to object space with
Generate a frame pattern.Further, when the quantity of collimating element 30 is multiple, every group of collimating element 30 or at least one set of collimation
Element 30 can have different focal lengths.Wherein, different focal lengths includes the positive and negative and/or size of focal length.In other words, every group of standard
Straight element 30 or at least one set of collimating element 30 can generate the effect of different divergings or converging beam.It so, it is possible into one
Step improves the irrelevance of the laser pattern generated.
In the above-described embodiment, collimating element 30 can be a lens, which is convex lens or concavees lens, the lens
Face type can be aspherical, spherical surface, Fresnel surface or binary optical face；Or collimating element 30 be by multiple along luminous member
The lens group for the lens composition that the light emission direction of part 12 is set gradually, multiple lens can be convex lens or concavees lens or part
Partly it is concavees lens for convex lens, the face type of each lens can be in aspherical, spherical surface, Fresnel surface, binary optical face
Any one.
In some embodiments, when the quantity of collimating element 30 is one, collimating element 30 and light-emitting device array
12 intervals (as shown in Figure 2)；When the quantity of collimating element 30 be it is multiple when, multiple collimating elements 30 respectively with a plurality of light-emitting elements
12 are integrated on substrate 11 (as shown in Figure 3).In this way, multiple collimating elements 30 are integrated in substrate 11 with a plurality of light-emitting elements 12
On, be conducive to the volume for reducing optoelectronic device 100.
Referring to Fig. 9, the depth camera 1000 that the utility model implements embodiment includes any of the above-described embodiment
Optoelectronic device 100, image acquisition device 200 and processor 300.Image acquisition device 200 is for acquiring from optoelectronic device 100 to target
The pattern projected in space.Processor 300 is connect with optoelectronic device 100 and image acquisition device 200 respectively, and processor 300 is used for
Multiframe pattern is merged to form laser pattern and handle laser pattern to obtain depth image.
Specifically, image acquisition device 200 can be infrared camera, and processor 300 calculates this using image matching algorithm and swashs
The deviation value of each pixel each pixel corresponding with reference pattern, further obtains further according to the deviation value in light pattern
The depth image of the laser pattern.Wherein, image matching algorithm can be digital picture correlation (Digital Image
Correlation, DIC) algorithm.It is of course also possible to use other image matching algorithms replace DIC algorithms.
In the depth camera 1000 of the utility model embodiment, a plurality of light-emitting elements 12 are randomly distributed, Laser emission
When device 10 works, the light-emitting component 10 of at least one set of regular distribution emits light beam to form a frame pattern, multiframe pattern by driving
Merging forms laser pattern, in this way, laser pattern is irregular pattern, can improve the irrelevance of laser pattern, to
Improve the speed and precision of the depth image for obtaining the laser pattern.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means the tool described in conjunction with the embodiment or example
Body characteristics, structure, material or feature are contained at least one embodiment or example of the utility model.In this specification
In, 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.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of preferred embodiments of the present invention includes other realization, wherein can not press shown or discuss
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by this
The embodiment person of ordinary skill in the field of utility model is understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processing module or other can be from instruction
Execute system, device or equipment instruction fetch and the system that executes instruction) use, or combine these instruction execution systems, device or
Equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can include, store, communicating, propagating or
Transmission program uses for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment
Device.The more specific example (non-exhaustive list) of computer-readable medium includes following：With one or more wiring
Electrical connection section (IPM current foldback circuits), portable computer diskette box (magnetic device), random access memory (RAM) are read-only to deposit
Reservoir (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk are only
Read memory (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other conjunctions
Suitable medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary
It is handled with other suitable methods electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the embodiment of the utility model can use hardware, software, firmware or combination thereof
To realize.In the above-described embodiment, multiple steps or method can use storage in memory and by suitable instruction execution
The software or firmware that system executes are realized.For example, if realized with hardware, in another embodiment, can use
Any one of following technology well known in the art or their combination are realized：With for realizing logic work(to data-signal
The discrete logic of the logic gates of energy, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate
Array (PGA), field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing module,
Can also be that each unit physically exists alone, can also two or more units be integrated in a module.Above-mentioned collection
At module both may be used hardware form realize, can also be realized in the form of software function module.It is described integrated
If module is realized in the form of software function module and when sold or used as an independent product, can also be stored in one
In computer read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-mentioned embodiment party
Formula is exemplary, and should not be understood as limiting the present invention, and those skilled in the art are in the utility model
The above embodiment can be changed, be changed in range, replaced and modification.
Claims (12)
1. a kind of laser emitter, which is characterized in that including：
Semiconductor substrate；With
A plurality of light-emitting elements over the substrate, multiple light-emitting component irregular distributions, multiple luminous members are set
Part is divided into multigroup, light-emitting component regular distribution described in every group, at least one set of described luminous when the laser emitter works
For element by driving transmitting light beam to form a frame pattern, pattern described in multiframe forms laser pattern for merging.
2. laser emitter according to claim 1, which is characterized in that the light-emitting component includes point light source light-emitting device
Part.
3. laser emitter according to claim 1, which is characterized in that light-emitting component is driven separately described in every group；Or
At least one set of light-emitting component is driven separately.
4. laser emitter according to claim 1, which is characterized in that light-emitting component described in every group is for being actuated to send out
Penetrate the light beam of different light intensity；Or at least one set of light-emitting component is used to be actuated to emit the light beam of different light intensity.
5. laser emitter according to claim 1, which is characterized in that light-emitting component described in every group is for being actuated to send out
Penetrate the light beam of different wave length；Or at least one set of light-emitting component is used to be actuated to the light beam of transmitting different wave length.
6. laser emitter according to claim 1, which is characterized in that light-emitting component described in every group has different shine
Area；Or at least one set of light-emitting component has different light-emitting areas.
7. a kind of optoelectronic device, which is characterized in that including：
Substrate；With
Laser emitter described in claim 1-6 any one, the laser emitter setting is on the substrate.
8. a kind of optoelectronic device, which is characterized in that including：
Substrate；
Laser emitter described in claim 1-6 any one, the laser emitter setting is on the substrate；
Collimating element, the collimating element are arranged in the substrate close to the side of the laser emitter；With
Diffraction optical element, the collimating element are described to spread out between the laser emitter and the diffraction optical element
Optical element is penetrated for projecting the light beam emitted by the light-emitting component to generate the pattern.
9. optoelectronic device according to claim 8, which is characterized in that the quantity of the collimating element is one, an institute
It is corresponding with the light-emitting device array to state collimating element；Or
The quantity of the collimating element be it is multiple, multiple collimating elements be divided into it is multigroup, collimating element described in every group with it is every
The group light-emitting component corresponds to.
10. optoelectronic device according to claim 8, which is characterized in that the quantity of the collimating element is one, an institute
It is corresponding with the light-emitting device array to state collimating element, the collimating element and the corresponding light-emitting device array interval；
The quantity of the collimating element be it is multiple, multiple collimating elements be divided into it is multigroup, collimating element described in every group with it is every
The group light-emitting component corresponds to, and the collimating element is integrated over the substrate with the corresponding light-emitting component respectively.
11. optoelectronic device according to claim 8 or claim 9, which is characterized in that when the quantity of the collimating element is multiple
When, collimating element described in every group has different focal lengths；Or at least one set of collimating element has different focal lengths.
12. a kind of depth camera, which is characterized in that including：
Optoelectronic device described in claim 8-11 any one；
Image acquisition device, described image collector is for acquiring the figure projected from the optoelectronic device into object space
Case；With
The processor being connect respectively with the optoelectronic device and described image collector, the processor is used for will be described in multiframe
Pattern merges to form the laser pattern and handle the laser pattern to obtain depth image.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820031413.XU CN207780463U (en) | 2018-01-06 | 2018-01-06 | Laser emitter, optoelectronic device and depth camera |
| PCT/CN2019/070386 WO2019134671A1 (en) | 2018-01-06 | 2019-01-04 | Laser emitter, optoelectronic device, and depth camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820031413.XU CN207780463U (en) | 2018-01-06 | 2018-01-06 | Laser emitter, optoelectronic device and depth camera |
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| Publication Number | Publication Date |
|---|---|
| CN207780463U true CN207780463U (en) | 2018-08-28 |
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| CN201820031413.XU Expired - Fee Related CN207780463U (en) | 2018-01-06 | 2018-01-06 | Laser emitter, optoelectronic device and depth camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134671A1 (en) * | 2018-01-06 | 2019-07-11 | Oppo广东移动通信有限公司 | Laser emitter, optoelectronic device, and depth camera |
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2018
- 2018-01-06 CN CN201820031413.XU patent/CN207780463U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134671A1 (en) * | 2018-01-06 | 2019-07-11 | Oppo广东移动通信有限公司 | Laser emitter, optoelectronic device, and depth camera |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20180828 |