CN106568396A - Laser projector and depth camera thereof - Google Patents
Laser projector and depth camera thereof Download PDFInfo
- Publication number
- CN106568396A CN106568396A CN201610951132.1A CN201610951132A CN106568396A CN 106568396 A CN106568396 A CN 106568396A CN 201610951132 A CN201610951132 A CN 201610951132A CN 106568396 A CN106568396 A CN 106568396A
- Authority
- CN
- China
- Prior art keywords
- laser
- light
- projector
- emitting
- optical element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/254—Projection of a pattern, viewing through a pattern, e.g. moiré
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/48—Laser speckle optics
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a laser projector and a depth camera thereof. The laser projector includes a substrate, at least two light emitting elements, a controller and a diffractive optical element. The diffractive optical element is arranged at a position at a first distance from the substrate. The at least two light emitting elements are fixed at one side, facing the diffractive optical element, of the substrate. The at least two light emitting elements emit laser under the control of the controller, and have at least two different light emitting areas. The diffractive optical element is used for expanding laser beams sent by the at least two light emitting elements and then emitting laser patterns to the air. The laser projector meets the output power requirements by arranging the at least two light emitting elements, improves the irrelevance of the laser patterns by arranging at least two light emitting areas, and further improves the speed and the precision of obtaining the depth image of the laser pattern of the depth camera thereof.
Description
Technical field
The present invention relates to optical field, more particularly to a kind of laser-projector and its depth camera.
Background technology
Laser-projector is used to launch the optical design of setting to object space, is being led based on optical three-dimensional measurement
Domain, laser-projector is widely applied.Laser-projector is typically made up of light source, collimating mirror and diffraction optical element,
Wherein light source can be the face battle array laser that single edge emitting LASER Light Source can also be made up of multiple vertical cavity surface-emitting lasers
Light source etc..
The higher laser pattern of irrelevance, but its can be launched based on the laser-projector of single edge emitting LASER Light Source
Volume can be significantly increased with the increase of output, and the uniformity of the laser pattern is poor；And be based on by least two
The laser-projector of vertical cavity surface-emitting laser light source can launch equal-wattage and with higher uniform with less volume
The laser pattern of property, but the irrelevance of the laser pattern is relatively low, and the height of the irrelevance of laser pattern is directly affected
The height of its depth image precision and the speed of acquisition speed.
The content of the invention
The invention mainly solves the technical problem of a kind of laser-projector and its depth camera are provided, to solve existing skill
To meet the output and volume requirement of laser-projector in art, and the irrelevance of the laser pattern of its transmitting is caused to reduce
Problem.
To solve above-mentioned technical problem, the present invention provides a kind of laser-projector, and the laser-projector includes：Substrate,
At least two light-emitting components, controller and diffraction optical element；
Wherein, the diffraction optical element is arranged on the position with the distance of the substrate separation first；
Wherein, at least two light-emitting component is fixed on the substrate towards the diffraction optical element side；
At least two light-emitting component launches laser, and described at least two luminous units under the control of the controller
Part has at least two different light-emitting areas；
The diffraction optical element, for sending out in space after the laser beam expanding that sends at least two light-emitting component
Penetrate laser pattern.
Wherein, the laser-projector further includes lens, the lens and the substrate separation second distance.
Wherein, the lens are microlens array.
Wherein, the lenticule unit in the microlens array and the light-emitting component in a pair one or one-to-many it is corresponding
Relation.
Wherein, the second distance is more than first distance.
Wherein, the light-emitting component is vertical cavity surface emitting laser.
Wherein, the controller is individually controlled at least two light-emitting component, is grouped control, or overall control
System.
Wherein, the laser pattern of the diffraction optical element transmitting is speckle particle pattern, in the speckle particle pattern
Granule at least has two kinds of different sizes.
Wherein, the maximum light-emitting area of at least two light-emitting component is less than 3 with the ratio of minimum light-emitting area.
To solve above-mentioned technical problem, the present invention provides a kind of depth camera, the depth camera include image acquisition device,
Processor and described laser-projector；
The processor is connected respectively with described image harvester and the laser-projector；
Wherein, the laser that described image harvester is projected in being used for collection from the laser-projector to object space
Pattern；
The processor is used to be obtained depth image by processing the laser pattern.
The invention has the beneficial effects as follows：Prior art is different from, a kind of laser-projector of the invention and its depth camera are logical
Cross the output and volume requirement that laser-projector is met using at least two light-emitting components, at the same by arrange this at least two
The light-emitting area of individual light-emitting component is different, and improves the irrelevance of the laser pattern of laser-projector transmitting, so as to further
Improve its depth camera obtain the laser pattern depth image speed and precision.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of laser-projector of the present invention；
Fig. 2 is the schematic diagram of laser pattern in Fig. 1 embodiments；
Fig. 3 is light-emitting component distribution schematic diagram in Fig. 1 embodiments；
Fig. 4 is schematic diagram of the controller to light-emitting component control mode first embodiment in Fig. 1 embodiments；
Fig. 5 is schematic diagram of the controller to light-emitting component control mode second embodiment in Fig. 1 embodiments；
Fig. 6 is schematic diagram of the controller to light-emitting component control mode 3rd embodiment in Fig. 1 embodiments；
Fig. 7 is the structural representation of the embodiment of depth camera of the present invention.
Specific embodiment
Refering to Fig. 1, Fig. 1 is the structural representation of the embodiment of laser-projector of the present invention.
The present embodiment laser-projector includes substrate 10, at least two light-emitting components 11 and 12, controller 13 and diffraction light
Learn element 14；
Wherein, diffraction optical element 14 is arranged on and is spaced on the position of the first distance with substrate 10；At least two luminous units
Part 11,12 is fixed on substrate 10 towards the side of diffraction optical element 14；
At least two light-emitting components 11,12 launch laser under the control of controller 13, and at least two light-emitting components 11,
12 have at least two different light-emitting areas；Diffraction optical element 14 is used for send at least two light-emitting components 11,12
Launch laser pattern in space after laser beam expanding.
The present embodiment laser-projector is produced using the light-emitting component 11,12 of at least two different light-emitting areas to be had at least
The laser pattern of two kinds of different light-emitting areas, can improve laser pattern while output and volume requirement is met
Irrelevance, because the light source of at least two light-emitting components composition can increase the output of laser-projector, and meets laser
The volume requirement of projector, meanwhile, the not phase of the laser pattern that the laser-projector based at least two light-emitting areas can be launched
Closing property is higher.
Further the irrelevance of laser pattern in Fig. 1 embodiments is illustrated.Refering to Fig. 2, Fig. 2 is Fig. 1 embodiments
The schematic diagram of middle laser pattern, it is higher unique that the irrelevance of the laser pattern refers to that its each pattern sub-district 21,22,23 has
Property, this uniqueness includes the uniqueness of shape, size, the arrangement position of laser pattern etc..From figure 2 it can be seen that pattern is sub
The irrelevance in area 21 and 22 is less than the irrelevance of pattern sub-district 21 and 23 or the irrelevance in area 22 and 23.In the present embodiment
Without exhaustion, and the pattern sub-district size can be the pixel sizes such as 7x7,11x11 to middle pattern sub-district, the pattern sub-district size according to
Depending on specific requirement of the laser-projector to the irrelevance of the laser pattern of transmitting.
Refering to Fig. 3, Fig. 2, Fig. 3 is light-emitting component distribution schematic diagram in Fig. 1 embodiments.Optionally, diffraction optical element 14
The laser pattern of transmitting is speckle particle pattern, because the speckle particle pattern is by with least two different light-emitting areas
The transmitting of at least two light-emitting component 11,12, therefore, at least have in the speckle particle pattern two kinds of different size sizes
Grain 24,25.
Optionally, light-emitting component 11,12 is vertical cavity surface emitting laser.Vertical cavity surface emitting laser is a kind of vertical
Surface goes out the new laser of light.Compared with traditional edge-emitting laser, the laser instrument light emission direction is vertical with substrate, can be very
The integrated of high density two-dimensional array is easily realized, realizes that more power is exported, and because it is compared to edge-emitting lasers
Possess less volume, such that it is able to more advantageously be integrated into miniature electric components and parts in；While the laser instrument and optical fiber
Coupling efficiency it is high, without the beam shaping system of complex and expensive, and manufacturing process is compatible with light emitting diode, drops significantly
Low production cost.
Optionally, the light-emitting area of vertical cavity surface emitting laser can be controlled by electrical confined aperture, therefore, can pass through
Control electric current limiting aperture is reaching the control to light-emitting area size.Vertical cavity surface can certainly be controlled using other modes
The size of the light-emitting area of emitting laser.
Refering to Fig. 4 to Fig. 6, optionally, can overall control at least two light-emitting component 11,12 of used controller 13 work
（As shown in Figure 4）.Certainly also can be worked with packet control at least two light-emitting component 11,12 of at least two controller 13,50（Such as
Shown in Fig. 5）, or individually control at least two 11,12 work with least two controllers 13,50（As shown in Figure 6）.
Wherein, above-mentioned packet control is carried out according to the light-emitting area size of at least two light-emitting components 11,12, also may be used
To be grouped at least two light-emitting components 11,12 using other foundations.
Optionally, the maximum light-emitting area of at least two light-emitting components 11,12 is typically little with the ratio of minimum light-emitting area
In 3, the ratio can need setting according to practical operation.
The present embodiment laser-projector also includes lens 15, and lens 15 are spaced second distance with substrate 10.
Wherein, lens 15 are microlens array, and the multiple lenticulees 151 and at least two in microlens array 15 are luminous first
The corresponding relation of part 11,12 one corresponding relation or one-to-many in a pair.Certainly, lens 15 can also be single lens.At it
In its embodiment, lens 15 can also be saved.
Additionally, second distance is not limited with the size of the first distance.In one embodiment, second distance is less than the
One distance, i.e. lens 15 are located between light-emitting component 11,12 and diffraction optical element 14, for focusing on and/or collimating by least
The laser that two light-emitting components 11,12 are launched, the benefit for so arranging can be further to increase being sent for light-emitting component
The collimation of light beam, this situation is as shown in Figure 1.In another kind of embodiment, second distance can also be more than the first distance, i.e.,
Lens 15 are located at the outside of light-emitting component 11,12 and diffraction optical element 14, for focusing on and/or collimating diffraction optical element
14 laser launched.Usually, it is desirable to which light-emitting component is located on the focal length of lens, thus when the focal length of lens is identical, this
Plant and the volume that can further reduce whole laser-projector is set.
Prior art is different from, the present embodiment laser-projector meets laser-projector using at least two light-emitting components
Output and volume requirement, while arrange at least two light-emitting areas transmitting laser pattern so that laser-projector launch
Laser pattern irrelevance improve.
Be different from prior art, the present embodiment laser-projector using vertical cavity surface emitting laser as light source, can be with
The integrated of high density two-dimensional array is easily carried out, is realized while laser-projector volume is not increased so that the laser is thrown
There is shadow instrument more power to export, and production cost is relatively low, it is also possible to have while realization guarantee identical output less
Volume；Vertical cavity surface emitting laser can realize the control to light-emitting area size by control electric current limiting aperture, from
And further increase the irrelevance of the laser pattern of the laser-projector transmitting.
Refering to Fig. 7, Fig. 7 is the example structure schematic diagram of depth camera of the present invention.
The present embodiment depth camera includes image acquisition device 70, processor 71 and laser-projector 72；
Wherein, laser-projector 72 is Fig. 1 embodiment laser-projectors, and it is constituted and operation principle does not repeat to chat here
State.
Image acquisition device 70 is mainly used in the laser pattern projected in gathering from laser-projector 72 to object space, optional
, image acquisition device 70 is infrared camera, naturally it is also possible to substitute infrared camera using other image capture devices.
Processor 71 is used to obtain depth image by carrying out process to the laser pattern.
Optionally, during processor 71 calculates each pixel of the laser pattern and reference pattern using image matching algorithm
The deviation value of corresponding each pixel, according to the deviation value depth image of the laser pattern is further obtained.
Wherein, the image matching algorithm is related using digital picture（DIC）Algorithm.Other images can certainly be adopted
Replace DIC algorithms with algorithm.
Prior art is different from, the present embodiment depth camera is gathered by with least two light-emitting areas using image acquisition device
The laser pattern that long-pending laser-projector is projected in object space, carries out process and obtains depth by processor to the laser pattern
Degree image, due to the irrelevance of the laser pattern it is higher, so as to improve speed and essence that depth camera obtains the laser pattern
Degree.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (10)
1. a kind of laser-projector, it is characterised in that include：
Substrate, at least two light-emitting components, controller and diffraction optical element；
The diffraction optical element is arranged on the position with the distance of the substrate separation first；
Wherein, at least two light-emitting component is fixed on the substrate towards the diffraction optical element side；
At least two light-emitting component launches laser under the control of the controller, and at least two light-emitting component has
There are at least two different light-emitting areas；
The diffraction optical element, swashs for launching in space after the laser beam expanding that sends at least two light-emitting component
Light pattern.
2. laser-projector according to claim 1, it is characterised in that
Further include lens, the lens and the substrate separation second distance.
3. laser-projector according to claim 2, it is characterised in that
The lens are microlens array.
4. laser-projector according to claim 3, it is characterised in that
Lenticule unit in the microlens array and the light-emitting component in a pair one or one-to-many corresponding relation.
5. laser-projector according to claim 2, it is characterised in that
The second distance is more than first distance.
6. laser-projector according to claim 1, it is characterised in that
The light-emitting component is vertical cavity surface emitting laser.
7. laser-projector according to claim 1, it is characterised in that
The controller is individually controlled at least two light-emitting component, is grouped control, or overall control.
8. laser-projector according to any one of claim 1 to 7, it is characterised in that
The laser pattern of the diffraction optical element transmitting is speckle particle pattern, and granule at least has in the speckle particle pattern
There are two kinds of different sizes.
9. laser-projector according to any one of claim 1 to 7, it is characterised in that
The maximum light-emitting area of at least two light-emitting component is less than 3 with the ratio of minimum light-emitting area.
10. a kind of depth camera, it is characterised in that including image acquisition device, processor and such as any one of claim 1 to 9 institute
The laser-projector stated；
The processor is connected respectively with described image harvester and the laser-projector；
Wherein, the laser figure that described image harvester is projected in being used for collection from the laser-projector to object space
Case；
The processor is used to be obtained depth image by processing the laser pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951132.1A CN106568396A (en) | 2016-10-26 | 2016-10-26 | Laser projector and depth camera thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951132.1A CN106568396A (en) | 2016-10-26 | 2016-10-26 | Laser projector and depth camera thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106568396A true CN106568396A (en) | 2017-04-19 |
Family
ID=58535077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610951132.1A Pending CN106568396A (en) | 2016-10-26 | 2016-10-26 | Laser projector and depth camera thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106568396A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997603A (en) * | 2017-05-19 | 2017-08-01 | 深圳奥比中光科技有限公司 | Depth camera based on VCSEL array light source |
| CN107026392A (en) * | 2017-05-15 | 2017-08-08 | 深圳奥比中光科技有限公司 | Vcsel array light source |
| CN107039885A (en) * | 2017-05-04 | 2017-08-11 | 深圳奥比中光科技有限公司 | The laser array being imaged applied to 3D |
| CN107167997A (en) * | 2017-06-05 | 2017-09-15 | 深圳奥比中光科技有限公司 | Laser projection module and depth camera |
| CN107167996A (en) * | 2017-06-05 | 2017-09-15 | 深圳奥比中光科技有限公司 | The laser projection module and depth camera adaptively adjusted |
| CN107424188A (en) * | 2017-05-19 | 2017-12-01 | 深圳奥比中光科技有限公司 | Structured light projection module based on VCSEL array light source |
| CN108153052A (en) * | 2018-01-02 | 2018-06-12 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| CN108267083A (en) * | 2017-12-28 | 2018-07-10 | 顺丰科技有限公司 | A kind of 3D cameras volume measuring method and system |
| CN108445701A (en) * | 2018-02-01 | 2018-08-24 | 宁波舜宇光电信息有限公司 | Detect the light beam projection device and depth camera of luminous intensity |
| CN108508624A (en) * | 2018-03-12 | 2018-09-07 | 广东欧珀移动通信有限公司 | Laser projection module and its detection method and device, depth camera and electronic device |
| WO2018205355A1 (en) * | 2017-05-09 | 2018-11-15 | 深圳奥比中光科技有限公司 | Array laser projection device and depth camera |
| CN108828887A (en) * | 2018-06-05 | 2018-11-16 | 深圳奥比中光科技有限公司 | Projector and depth camera |
| CN109471213A (en) * | 2017-09-08 | 2019-03-15 | 罗伯特·博世有限公司 | Diffraction optical element and its manufacturing method, laser radar system and motor vehicle |
| CN109507844A (en) * | 2017-09-15 | 2019-03-22 | 奇景光电股份有限公司 | Structured light projection machine |
| CN109903719A (en) * | 2017-12-08 | 2019-06-18 | 宁波盈芯信息科技有限公司 | A kind of the structure light coding method for generating pattern and device of space-time code |
| CN109901300A (en) * | 2017-12-08 | 2019-06-18 | 宁波盈芯信息科技有限公司 | A kind of laser speckle projector based on vertical cavity surface emitting laser rule dot matrix |
| WO2019144813A1 (en) * | 2018-01-23 | 2019-08-01 | Oppo广东移动通信有限公司 | Laser transmitter, optoelectronic device, depth camera, and electronic device |
| WO2019174434A1 (en) * | 2018-03-12 | 2019-09-19 | Oppo广东移动通信有限公司 | Structured light projector, depth camera, and electronic device |
| WO2019192240A1 (en) * | 2018-04-03 | 2019-10-10 | Oppo广东移动通信有限公司 | Laser emitter, optoelectronic apparatus, depth camera and electronic device |
| CN113471810A (en) * | 2020-03-11 | 2021-10-01 | 福州瑞芯微电子股份有限公司 | Laser, structured light projector and control method thereof |
| US11563930B2 (en) | 2018-03-12 | 2023-01-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Laser projection component, detection method thereof, and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150042979A1 (en) * | 2012-06-26 | 2015-02-12 | Kla-Tencor Corporation | Diode laser based broad band light sources for wafer inspection tools |
| CN105929558A (en) * | 2016-06-20 | 2016-09-07 | 深圳奥比中光科技有限公司 | Laser module used for generating structured light |
| CN105929559A (en) * | 2016-06-20 | 2016-09-07 | 深圳奥比中光科技有限公司 | Laser module, laser module preparation method and depth measurement device |
| CN106019620A (en) * | 2016-07-01 | 2016-10-12 | 中国科学院光电研究院 | Device for inhibiting laser speckles and laser projection device |
-
2016
- 2016-10-26 CN CN201610951132.1A patent/CN106568396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150042979A1 (en) * | 2012-06-26 | 2015-02-12 | Kla-Tencor Corporation | Diode laser based broad band light sources for wafer inspection tools |
| CN105929558A (en) * | 2016-06-20 | 2016-09-07 | 深圳奥比中光科技有限公司 | Laser module used for generating structured light |
| CN105929559A (en) * | 2016-06-20 | 2016-09-07 | 深圳奥比中光科技有限公司 | Laser module, laser module preparation method and depth measurement device |
| CN106019620A (en) * | 2016-07-01 | 2016-10-12 | 中国科学院光电研究院 | Device for inhibiting laser speckles and laser projection device |
Non-Patent Citations (1)
| Title |
|---|
| 于晓洋 等: "结构光三维视觉技术的进展", 《宇航计测技术》 * |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039885A (en) * | 2017-05-04 | 2017-08-11 | 深圳奥比中光科技有限公司 | The laser array being imaged applied to 3D |
| WO2018205355A1 (en) * | 2017-05-09 | 2018-11-15 | 深圳奥比中光科技有限公司 | Array laser projection device and depth camera |
| US10958893B2 (en) | 2017-05-15 | 2021-03-23 | Orbbec Inc. | VCSEL array light source |
| CN107026392A (en) * | 2017-05-15 | 2017-08-08 | 深圳奥比中光科技有限公司 | Vcsel array light source |
| US10931935B2 (en) | 2017-05-19 | 2021-02-23 | Orbbec Inc. | Structured light projection module based on VCSEL array light source |
| CN107424188A (en) * | 2017-05-19 | 2017-12-01 | 深圳奥比中光科技有限公司 | Structured light projection module based on VCSEL array light source |
| US11445164B2 (en) | 2017-05-19 | 2022-09-13 | Orbbec Inc. | Structured light projection module based on VCSEL array light source |
| CN106997603A (en) * | 2017-05-19 | 2017-08-01 | 深圳奥比中光科技有限公司 | Depth camera based on VCSEL array light source |
| CN107424188B (en) * | 2017-05-19 | 2020-06-30 | 深圳奥比中光科技有限公司 | Structured light projection module based on VCSEL array light source |
| WO2018209989A1 (en) * | 2017-05-19 | 2018-11-22 | 深圳奥比中光科技有限公司 | Structured light projection module based on vcsel array light source |
| CN107167996A (en) * | 2017-06-05 | 2017-09-15 | 深圳奥比中光科技有限公司 | The laser projection module and depth camera adaptively adjusted |
| CN107167997A (en) * | 2017-06-05 | 2017-09-15 | 深圳奥比中光科技有限公司 | Laser projection module and depth camera |
| CN109471213B (en) * | 2017-09-08 | 2022-03-18 | 罗伯特·博世有限公司 | Diffractive optical element, method for producing same, lidar system and motor vehicle |
| CN109471213A (en) * | 2017-09-08 | 2019-03-15 | 罗伯特·博世有限公司 | Diffraction optical element and its manufacturing method, laser radar system and motor vehicle |
| CN109507844A (en) * | 2017-09-15 | 2019-03-22 | 奇景光电股份有限公司 | Structured light projection machine |
| CN109901300A (en) * | 2017-12-08 | 2019-06-18 | 宁波盈芯信息科技有限公司 | A kind of laser speckle projector based on vertical cavity surface emitting laser rule dot matrix |
| CN109901300B (en) * | 2017-12-08 | 2021-04-06 | 宁波盈芯信息科技有限公司 | Laser speckle projector based on vertical cavity surface emitting laser regular dot matrix |
| CN109903719A (en) * | 2017-12-08 | 2019-06-18 | 宁波盈芯信息科技有限公司 | A kind of the structure light coding method for generating pattern and device of space-time code |
| CN108267083A (en) * | 2017-12-28 | 2018-07-10 | 顺丰科技有限公司 | A kind of 3D cameras volume measuring method and system |
| CN108153052A (en) * | 2018-01-02 | 2018-06-12 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| WO2019144813A1 (en) * | 2018-01-23 | 2019-08-01 | Oppo广东移动通信有限公司 | Laser transmitter, optoelectronic device, depth camera, and electronic device |
| CN108445701A (en) * | 2018-02-01 | 2018-08-24 | 宁波舜宇光电信息有限公司 | Detect the light beam projection device and depth camera of luminous intensity |
| CN108508624A (en) * | 2018-03-12 | 2018-09-07 | 广东欧珀移动通信有限公司 | Laser projection module and its detection method and device, depth camera and electronic device |
| WO2019174434A1 (en) * | 2018-03-12 | 2019-09-19 | Oppo广东移动通信有限公司 | Structured light projector, depth camera, and electronic device |
| US11563930B2 (en) | 2018-03-12 | 2023-01-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Laser projection component, detection method thereof, and electronic device |
| WO2019192240A1 (en) * | 2018-04-03 | 2019-10-10 | Oppo广东移动通信有限公司 | Laser emitter, optoelectronic apparatus, depth camera and electronic device |
| CN108828887A (en) * | 2018-06-05 | 2018-11-16 | 深圳奥比中光科技有限公司 | Projector and depth camera |
| CN108828887B (en) * | 2018-06-05 | 2023-10-24 | 奥比中光科技集团股份有限公司 | Projector and depth camera |
| CN113471810A (en) * | 2020-03-11 | 2021-10-01 | 福州瑞芯微电子股份有限公司 | Laser, structured light projector and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106568396A (en) | Laser projector and depth camera thereof | |
| CN106569382B (en) | Laser-projector and its depth camera | |
| CN106997603B (en) | Depth camera based on VCSEL array light source | |
| CN107424188B (en) | Structured light projection module based on VCSEL array light source | |
| CN108107662A (en) | Laser emitter, optoelectronic device and depth camera | |
| CN107357123A (en) | Laser projection device containing Fresnel Lenses | |
| JP2015179245A5 (en) | ||
| JP2014525717A5 (en) | ||
| CN106662740B (en) | Compact lighting system | |
| CN108107663A (en) | Laser emitter, optoelectronic device, depth camera and electronic device | |
| JP2016519436A5 (en) | ||
| US10386706B2 (en) | Structured-light projector | |
| CN108363267A (en) | The structured light projection module of regular array light source | |
| CN106331453A (en) | Multi-image acquisition system and image acquisition method | |
| US10333277B2 (en) | Structure light module using vertical cavity surface emitting laser array | |
| CN106501959A (en) | A kind of face battle array laser-projector and its depth camera | |
| US10754167B2 (en) | Structured-light projector | |
| CN110244277A (en) | Transmission unit and laser radar apparatus for scanning scanning area | |
| CN207216257U (en) | Laser projection device containing Fresnel Lenses | |
| CN108490637A (en) | Laser emitter, optoelectronic device, depth camera and electronic device | |
| CN206877029U (en) | Laser projection device | |
| CN109541817A (en) | A kind of project structured light mould group that polarization state is controllable and 3D imaging device | |
| CN114428437B (en) | 3D projector and electronic equipment that structured light and floodlight illumination put together | |
| CN108333858A (en) | Laser emitter, optoelectronic device, depth camera and electronic device | |
| CN108107661A (en) | Laser emitter, optoelectronic device and depth camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170419 |