CN206331180U - A kind of laser scanning device with hollow shaft - Google Patents
A kind of laser scanning device with hollow shaft Download PDFInfo
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- CN206331180U CN206331180U CN201621008276.5U CN201621008276U CN206331180U CN 206331180 U CN206331180 U CN 206331180U CN 201621008276 U CN201621008276 U CN 201621008276U CN 206331180 U CN206331180 U CN 206331180U
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- hollow shaft
- scanning device
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- laser scanning
- light beam
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Abstract
The utility model is related to optical technical field, and in particular to a kind of laser scanning device with hollow shaft, the laser scanning device includes：The hollow shaft with hollow cavity of rotary setting；With the scan components for turning to scanner uni alignment function, the scan components are located at one end of hollow shaft and as hollow shaft rotates together；Positioned at the transmitting ranging component of the hollow shaft other end, the optical axis of receiving mechanism including the trigger mechanism for launching laser signal, for receiving the range laser signal reflected by measure target and the ranging mechanism for carrying out ranging according to range laser signal, the trigger mechanism and the receiving mechanism is substantially parallel；The utility model takes full advantage of space, is conducive to whole device to minimize；It is unobstructed during transmitting and reception without miscellaneous part in light path, improve scan efficiency；Scan components have reflection and collimating effect to the scanning light beam that trigger mechanism is sent in laser scanning device of the present utility model, while playing the role of to reflect and assembling to range laser light beam, improve scan efficiency.
Description
Technical field
The utility model is related to optical technical field, and in particular to a kind of laser scanning device with hollow shaft.
Background technology
Laser radar uses transmitting laser irradiation object, by the delay of object return laser light, phase or displacement
To analyze the information such as distance and speed.This is a time-honored technology, in recent years, with 3D printing measurement, ground mapping,
The development of the industry such as auxiliary and automatic Pilot, unmanned plane, has also driven laser radar technique and has applied high speed development.
In the prior art, in some industries, such as sweeper, AGV etc., the laser radar of triangle measurement method principle is commonly used, this
Plant radar and use Laser emission light beam, be irradiated to after object, return, received by CCD, different distances correspond on CCD not
Same pixel, passes through the resolving to image pixel intensities on CCD, obtains laser spot position, it is possible to converse the distance of object.So
Motor is used afterwards, is driven above-mentioned trigonometry laser radar rotation, with reference to the information of angle and distance, is just constituted laser radar.
The major advantage of this radar is cheap, and more applications can be obtained in consumer electronics field.But because transmitting and
Receiving light path must be spaced a certain distance, such as 100mm can just form triangular, obtain relatively good precision, so
Principle bring two than larger limitation：First, diameter can not reduce than larger, in the equipment to small volume
It can not use；Second, it is necessary to directly drive the rotation of range of triangle module, it is necessary to power in the case of rotation and transmission measurement number
According at present to use slip ring, restricted lifetime, fault rate is higher, newest use wireless power and wireless data transmission, carries more
High cost.
In the prior art, also referred to using TOF methods or the range finder module of phase method shown in Fig. 1, transmitting can be made
With receiving light path common lens, the volume of light path is reduced.After the light path using transmitting-receiving, can by the speculum of rotation or
Person's prism realizes that light path is scanned, and rotating part can be avoided to include circuit, so as to avoid the problem of power supply and data communication, nothing
Conducting slip ring or wireless power supply module need to be used, structure is simpler.But the drive shaft and range finder module of this method speculum
In speculum both sides, two parts need support frame when fixation, and support frame can block the light path of rotation, cause in 360 degree of models
Enclose it is interior there is blind area, and be unfavorable for whole device miniaturization.
In consideration of it, overcoming the above defect of the prior art to turn into there is provided a kind of laser scanning device with hollow shaft
This area technical problem urgently to be resolved hurrily.
The content of the invention
The purpose of this utility model is that the drawbacks described above for being directed to prior art is swept there is provided a kind of laser with hollow shaft
Imaging apparatus.
The purpose of this utility model can be realized by following technical measures：
A kind of laser scanning device with hollow shaft, its difference is that the laser scanning device includes：
The hollow shaft with hollow cavity of rotary setting；
With the scan components for turning to scanner uni alignment function, the scan components are located at one end of hollow shaft and with sky
Heart axle rotates together；
Positioned at the transmitting ranging component of the hollow shaft other end, including for launching the trigger mechanism of laser signal, for connecing
Receive the receiving mechanism of the range laser signal reflected by measure target and the ranging for carrying out ranging according to range laser signal
The optical axis of mechanism, the trigger mechanism and the receiving mechanism is substantially parallel or overlaps；
Wherein, after hollow cavity of the laser signal that trigger mechanism is sent by hollow shaft is scanned component reflection and collimation
Form scanning light beam and reach measure target, the range laser light beam formed after the tested reflection that sets the goal is scanned component and enters line convergence
Receiving mechanism is reached with the hollow cavity after reflection by hollow shaft.
It is preferred that, scan components or for concave mirror, or the convex lens being arranged in order for the light path along range laser light beam
Mirror or lens group and speculum, or the convex lens or lens group and reflection rib being arranged in order for the light path along range laser light beam
Mirror.
It is preferred that, it is additionally provided between the hollow shaft and the transmitting ranging component for entering horizontal deflection to laser beam
Speculum or reflecting prism.
It is preferred that, the laser scanning device also includes the drive component for driving the hollow shaft rotation.
It is preferred that, the laser scanning device is also included located at the transmission component between drive component and hollow shaft.
Ranging component driving radiated element of the present utility model lights, and its light beam sent is the light beam of diverging, this hair
Scattered light beam pass through hollow shaft after run into level crossing folding turn 90 degrees, then by after level crossing lens assemble, make the light of transmitting
It is changed into the light beam of collimation, and launches；The light beam of transmitting is run into after object to be measured, is converted to reflection dorsad, is dissipated
The light such as penetrate, a part of light is returned on collimating mirror, pass through speculum after convergence again, through hollow shaft, incide light receiving element
On, optical signal is switched to electric signal by light receiving element, is calculated by range finder module and is launched and receive the phase place change between signal, or
Person's time delay, so as to calculate the distance of object.
Scan components and transmitting ranging component are located at the two ends of hollow shaft respectively in laser scanning device of the present utility model,
Hollow shaft is located in the light path of laser, takes full advantage of space, is conducive to whole device to minimize；Without miscellaneous part in light path,
It is unobstructed during transmitting and reception, improve scan efficiency；Scan components are to hair in laser scanning device of the present utility model
Penetrating the scanning light beam that mechanism sends has reflection and collimating effect, while playing the role of to reflect and assembling to range laser light beam, carries
High scan efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the laser scanning device of prior art.
Fig. 2 is the structural representation of laser scanning device of the present utility model.
Fig. 3 is the structural representation of the laser scanning device of first preferred embodiment of the present utility model.
Fig. 4 is the structural representation of the laser scanning device of second preferred embodiment of the present utility model.
Fig. 5 is the structural representation of the laser scanning device of the 3rd preferred embodiment of the present utility model.
Fig. 6 is the structural representation of the laser scanning device of the 4th preferred embodiment of the present utility model.
Fig. 7 is the structural representation of the laser scanning device of the 5th preferred embodiment of the present utility model.
Fig. 8 is the structural representation of the laser scanning device of the 6th preferred embodiment of the present utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with the accompanying drawings and specifically
Embodiment is described in further detail to the utility model.It should be appreciated that specific embodiment described herein is only to solve
The utility model is released, is not used to limit the utility model.
Hereinafter, refer to the attached drawing is more fully understood to many aspects of the present utility model.Part in accompanying drawing may not
It is drawn to scale.Alternatively, it is preferred that emphasis is clearly demonstrate part of the present utility model.In addition, in the accompanying drawings some regard
In figure, identical reference indicates corresponding part.
Word " exemplary " as used herein or " illustrative " expression are used as example, example or explanation.Retouch herein
Any embodiment stated as " exemplary " or " illustrative ", which is not necessarily to be construed as, to be preferred relative to other embodiment or has
Profit.All embodiments described below be illustrative embodiments be there is provided these illustrative embodiments in order that
Those skilled in the art make and using embodiment of the disclosure and expection be not intended to limit the scope of the present disclosure, the disclosure
Scope is defined by the claims.In other embodiments, well known feature and method is describe in detail to obscure this
Utility model.For purpose described herein, term " on ", " under ", "left", "right", "front", "rear", " vertical ", " level " and
Its derivative words will be relevant with the utility model that such as Fig. 2 is oriented.Moreover, have no intent to by technical field above, background technology,
Any theoretical limitation expressed or implied provided in the content of the invention or detailed description below.It should also be clear that being shown in the drawings
It is that the utility model limited in the following claims is conceived with the specific device and process described in discussion below book
Simple examples embodiment.Therefore, the specific size related to presently disclosed embodiment and other physical features should not be by
It is construed as limiting, unless claims are separately clearly stated.
The a kind of of the present embodiment is that the beam path alignment part of range finder module is moved on to rotatable light path portion by mentality of designing
Point, the light path after hollow shaft includes steering scanner uni alignment function.The benefit one so done is that the volume of module is smaller, and two are
Light path diameter the best part is had been moved to outside hollow shaft, the free degree in thinner hollow shaft, design can be used bigger.
Fig. 2 shows a kind of laser scanning device with hollow shaft, refers to shown in Fig. 2, the laser scanning device bag
Include：The hollow shaft 10 of rotary setting, the scan components 20 with steering scanner uni alignment function and transmitting ranging component 30, its
In, hollow shaft 10 has hollow cavity 10a.Scan components 20 have reflecting surface, and scan components 20 are located at one end of hollow shaft 10
And as hollow shaft 10 rotates together, the axis of reflecting surface and hollow shaft 10 is angled or reflecting surface is concave surface.Transmitting
Ranging component 30 is located at the other end of hollow shaft 10, including for launching the trigger mechanism 301 of laser signal, for receiving by determining
The receiving mechanism 302 of the range laser signal of target reflection and the ranging mechanism for carrying out ranging according to range laser signal
303, the optical axis of the trigger mechanism 301 and the receiving mechanism 302 it is substantially parallel or.Scan components 20 can for concave mirror or
Person other have convergence function lens subassembly and speculum combination.
Wherein, hollow cavity 10a of the laser signal that trigger mechanism 301 is sent Jing Guo hollow shaft 10 is scanned the anti-of component
Penetrate and scanning light beam arrival measure target is formed after the reflection of face, the range laser light beam formed after the tested reflection that sets the goal is by reflecting
Hollow cavity 10a by hollow shaft 10 reaches receiving mechanism 302 after face is reflected.
In a preferred embodiment, refer to shown in Fig. 3 and Fig. 4, use hollow shaft motor 100, hollow shaft motor
100 hollow shaft 10 drives scan components 20 to rotate.
The speculum of the present embodiment can be that plane mirror or prism or speculum and lens are closed
One integrated optical element.Collimating mirror and speculum are installed along with hollow shaft, are rotated and are rotated with hollow shaft,
Light beam is invested to 360 degree of all directions successively, so as to realize ranging to all directions, use encoder or other pass
Sensor perceives hollow shaft and speculum and the angle residing for collimating mirror, with reference to the distance tested in that angle, so that it may
To map out 360 degree of maps without dead angle.
In a preferred embodiment, refer to shown in Fig. 4 and Fig. 6, hollow shaft 10 and the transmitting ranging component 30
Between be additionally provided with mirror assembly 40 for entering horizontal deflection to laser beam.
In a preferred embodiment, refer to shown in Fig. 5 and Fig. 6, it is described that the laser scanning device also includes driving
The drive component 50 that hollow shaft 10 rotates, and the transmission component 60 between drive component 50 and hollow shaft 10, transmission component
60 can include multiple gears.
In a preferred embodiment, refer to shown in Fig. 7, scan components 20 include concave mirror, reflecting surface is an arc
Shape face, that is, realize the function of scanning, can also carry out convergence/divergence to light beam.
In a preferred embodiment, refer to shown in Fig. 8, scan components 20 include the light path along range laser light beam
The convex lens 201 and speculum 202 being arranged in order, that is, realize the function of scanning, can also carry out convergence/divergence to light beam.
Specifically, the laser scanning device that the present embodiment is provided is a kind of laser based on phase method or time-of-flight method
Radar installations, the device drives speculum or reflecting prism using hollow shaft motor or hollow shaft, and the light path of transmitting-receiving is worn
Hollow shaft is crossed, so as to realize 2D scannings in the way of directly rotating light path and measure.Wherein：Light path range finder module can be based on
The range finder module of phase method or the range finder module based on time-of-flight method；Light path range finder module transmitting light passes through hollow
Axle；Hollow shaft can be the hollow shaft of hollow shaft motor or the hollow shaft driven by machine driving；Through hollow shaft it
Light path afterwards is launched by rotatable speculum or prism；The light launched is reflected or scattered by target object
Return, be reflected back by same reflection mirror；The light being reflected back again passes through hollow shaft, returns to range finder module, obtains range information；
Rotating mirror or prism repeat to obtain another group of range information to another angle；The light launched is by object
Body reflects or is scattered back, and is reflected back by same reflection mirror, the range data for being obtained with different angles is repeated several times,
Which achieves the function of 2D laser radars.
The beneficial effect of the present embodiment：Volume can reduce；Avoid that mechanical structure causes to light path blocks；Avoid
Power and transmit on the spinning device many problems of signal；The weight of speculum or prism is general all smaller, and rotation is anti-
Faster sweep speed, and lower power consumption can be obtained by penetrating mirror or prism.
The present embodiment can also be turned to by gear train, drive a hollow shaft rotation, the light beam of the transmitting of range finder module
Hollow shaft through rotation is incided in hollow shaft, outgoing after the speculum or prism that rotate together with, the light of outgoing
Beam rotates with hollow shaft；External world's reflection or the light being scattered back are incided after speculum or prism, are diverted through hollow
Axle, returns to range finder module；Distance is obtained by the time delay or phase place change launching and receive；Analyze different rotary
The corresponding distance of angle can obtain the information of surrounding environment.Than one time steering structure of the structure turned to twice is more complicated, increase
The workload of assembling, but compared to more compact, short transverse size reduces, it is adaptable to require stricter place to size.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of laser scanning device with hollow shaft, it is characterised in that the laser scanning device includes：
The hollow shaft with hollow cavity of rotary setting；
With the scan components for turning to scanner uni alignment function, the scan components are located at one end of hollow shaft and with hollow shaft
Rotate together；
Positioned at the transmitting ranging component of the hollow shaft other end, including for launch laser signal trigger mechanism, for receive by
Determine the receiving mechanism of the range laser signal of target reflection and the range finder for carrying out ranging according to range laser signal
The optical axis of structure, the trigger mechanism and the receiving mechanism is substantially parallel or overlaps；
Wherein, hollow cavity of the laser signal that trigger mechanism is sent by hollow shaft is formed after being scanned component reflection and collimation
Scanning light beam, which is reached, determines target, and the range laser light beam formed after the tested reflection that sets the goal is scanned component and enters line convergence and anti-
Hollow cavity after penetrating by hollow shaft reaches receiving mechanism.
2. the laser scanning device according to claim 1 with hollow shaft, it is characterised in that the scan components are
Concave mirror, or the convex lens or lens group and speculum being arranged in order for the light path along range laser light beam, or to swash along ranging
Convex lens or lens group and reflecting prism that the light path of light light beam is arranged in order.
3. the laser scanning device according to claim 1 with hollow shaft, it is characterised in that the hollow shaft with it is described
The speculum or reflecting prism for entering horizontal deflection to laser beam are additionally provided between transmitting ranging component.
4. the laser scanning device according to claim 1 with hollow shaft, it is characterised in that the laser scanning device is also
Drive component including driving the hollow shaft rotation.
5. the laser scanning device according to claim 4 with hollow shaft, it is characterised in that the laser scanning device is also
Including the transmission component between drive component and hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621008276.5U CN206331180U (en) | 2016-08-31 | 2016-08-31 | A kind of laser scanning device with hollow shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621008276.5U CN206331180U (en) | 2016-08-31 | 2016-08-31 | A kind of laser scanning device with hollow shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206331180U true CN206331180U (en) | 2017-07-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621008276.5U Active CN206331180U (en) | 2016-08-31 | 2016-08-31 | A kind of laser scanning device with hollow shaft |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107480568A (en) * | 2017-07-28 | 2017-12-15 | 广州涉川科技有限公司 | A kind of device of new pattern laser identification bar code |
| CN109375192A (en) * | 2018-12-12 | 2019-02-22 | 广州维思车用部件有限公司 | Automated driving system, laser radar and its Laser emission structure |
| CN109613516A (en) * | 2018-11-16 | 2019-04-12 | 上海禾赛光电科技有限公司 | A kind of laser radar optical module mounting bracket |
| CN109991588A (en) * | 2019-04-29 | 2019-07-09 | 北京握奇数据股份有限公司 | A kind of laser radar scanning device |
| CN112179348A (en) * | 2020-09-22 | 2021-01-05 | 西安交通大学 | Lightweight laser scanning mechanism for photoelectric sensing positioning network |
| WO2021062735A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳市大疆创新科技有限公司 | Drive motor, scanning module and laser radar |
| CN113126062A (en) * | 2020-01-10 | 2021-07-16 | 西克股份公司 | Photoelectric sensor and method for detecting object |
| CN114578549A (en) * | 2022-04-29 | 2022-06-03 | 季华实验室 | Rotary scanning mechanism for remote sensing wide-width imaging and remote sensing wide-width imaging system |
| WO2024024299A1 (en) * | 2022-07-27 | 2024-02-01 | 富士フイルム株式会社 | Optical scanning device |
-
2016
- 2016-08-31 CN CN201621008276.5U patent/CN206331180U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107480568A (en) * | 2017-07-28 | 2017-12-15 | 广州涉川科技有限公司 | A kind of device of new pattern laser identification bar code |
| CN107480568B (en) * | 2017-07-28 | 2020-09-15 | 广州涉川科技有限公司 | Device of laser identification bar code |
| CN109613516A (en) * | 2018-11-16 | 2019-04-12 | 上海禾赛光电科技有限公司 | A kind of laser radar optical module mounting bracket |
| CN109375192A (en) * | 2018-12-12 | 2019-02-22 | 广州维思车用部件有限公司 | Automated driving system, laser radar and its Laser emission structure |
| CN109991588A (en) * | 2019-04-29 | 2019-07-09 | 北京握奇数据股份有限公司 | A kind of laser radar scanning device |
| WO2021062735A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳市大疆创新科技有限公司 | Drive motor, scanning module and laser radar |
| CN113126062A (en) * | 2020-01-10 | 2021-07-16 | 西克股份公司 | Photoelectric sensor and method for detecting object |
| CN112179348A (en) * | 2020-09-22 | 2021-01-05 | 西安交通大学 | Lightweight laser scanning mechanism for photoelectric sensing positioning network |
| CN112179348B (en) * | 2020-09-22 | 2022-08-09 | 西安交通大学 | Lightweight laser scanning mechanism for photoelectric sensing positioning network |
| CN114578549A (en) * | 2022-04-29 | 2022-06-03 | 季华实验室 | Rotary scanning mechanism for remote sensing wide-width imaging and remote sensing wide-width imaging system |
| WO2024024299A1 (en) * | 2022-07-27 | 2024-02-01 | 富士フイルム株式会社 | Optical scanning device |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190816 Address after: 430000 Workshop A, 2nd Floor, No. 6 Workshop, No. 3 High-tech Third Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Ling Road Sensing Technology Co., Ltd. Address before: 430205 No. 403, Guanggu Huijin Center, No. 18, Fourth Road, Finance Port, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: Wuhan Gaosi Optoelectronic Technology Co., Ltd. |