CN109188450A - A kind of optical distance measurement apparatus - Google Patents
A kind of optical distance measurement apparatus Download PDFInfo
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- CN109188450A CN109188450A CN201810988351.6A CN201810988351A CN109188450A CN 109188450 A CN109188450 A CN 109188450A CN 201810988351 A CN201810988351 A CN 201810988351A CN 109188450 A CN109188450 A CN 109188450A
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- measurement apparatus
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- distance measurement
- optical cavity
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- 230000003287 optical effect Effects 0.000 title claims abstract description 178
- 238000005259 measurement Methods 0.000 title claims abstract description 76
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
This application involves radar surveying technical fields, more particularly to a kind of optical distance measurement apparatus, it include: transmitting module, receiving module and computing module, transmitting light beam is issued from the transmitting module, at least partly transmitting light beam enters receiving module as the reflected beams after detected object reflection, and the computing module calculates the measurement distance or measurement light intensity of the optical distance measurement apparatus and detected object according to the signal that receiving module is transmitted；The transmitting light beam is projected in optical distance measurement apparatus by transmitting optical cavity, and the reflected beams are injected in optical distance measurement apparatus by receiving optical cavity, and the transmitting light beam and the reflected beams separate in optical distance measurement apparatus；The transmitting module includes transmitting light source, and the receiving module includes sensitive chip, is at least provided with electromagnetic screen around transmitting one of the light source and sensitive chip.
Description
This application claims on 09 08th, 2017 submission Patent Office of the People's Republic of China, application No. is 201710805689.9, invention
The application is hereby incorporated by reference in a kind of priority of the Chinese patent application of entitled " optical distance measurement apparatus ", entire contents
In.
Technical field
This application involves radar surveying technical field more particularly to a kind of optical distance measurement apparatus.
Background technique
Optical scanner range unit is a kind of using collimated light beam, by the flight time (Time of Flight, referred to as
TOF), the equipment that the methods of triangulation carries out non-contact scanning ranging.Currently, common optical scanner range unit packet
It includes: optical transmitter module, optical lens, the chip for receiving and processing signal.Optical transmitter module issues light beam, and optical lens is located at light
In the optical path of transmitting module, by the beam emissions of collimation to testee surface, encounters light beam after barrier and be reflected to and connect
It receives on chip, receives chip by measurement and be emitted to the time between receiving, phase difference, the known light velocity, measured object can be found out
Distance of the body to device.
The components such as the optical transmitter module for being used for ranging, optical lens, optical receiver module are mounted on one by this kind of device to be connected
The scanning that collimated light beam is realized on the platform of continuous rotation, the environment distance signal of available tour is rotated by motor,
It is powered between rotary part and fixation member by conducting slip ring and transmits data；Or the upper of movement can also be fixedly mounted on
On the machine of position, with the advance of host computer, retrogressing or its barrier for corresponding to ranging region of detection is turned to, it is wide before above two type order
It is general to be applied to robot environment's scanning, planning path, avoidance navigation, security protection detection etc..
Summary of the invention
Existing optical scanner range unit is in structure setting, in order to reduce the occupied space of device, transmitting light beam and
It receives light beam and is often contaminated with part bias light, or transmitting light beam and reception light beam are sent out inside optical scanner range unit
Blackberry lily relates to and crosstalk, influences the precision of test.
One of embodiment of the application is to propose a kind of optical distance measurement apparatus, by inciting somebody to action in optical distance measurement apparatus
Transmitting light beam and receive light beam and separate, and transmitting light beam and light beam will be received separate with ambient light, reduce emit light beam with
Light beam interfering with each other in measurement and external interference are received, solves the problems, such as that test interference is higher in the prior art.
The application in one embodiment, proposes a kind of optical distance measurement apparatus, by transmitting light source or photosensitive
It is provided with electromagnetic screen around one of chip, reduces the electromagnetic interference that sensitive chip is subject in optical distance measurement apparatus.
On the one hand, a kind of optical distance measurement apparatus, including transmitting module, receiving module and computing module emit light beam from institute
Transmitting module sending is stated, at least partly transmitting light beam enters receiving module as the reflected beams after detected object reflection, institute
It states computing module and calculates the optical distance measurement apparatus at a distance from detected object；The transmitting light beam is in optical distance measurement apparatus
Interior to be projected by transmitting optical cavity, the reflected beams are injected in optical distance measurement apparatus by receiving optical cavity, the transmitting light beam
It separates, does not interfere with each other in optical distance measurement apparatus with the reflected beams；The transmitting module and receiving module are arranged in the same PCB
On plate, the transmitting light beam is separated in transmitting optical cavity and the pcb board junction with exterior light, and the reception light beam is receiving light
Chamber and the pcb board junction are separated with exterior light；The transmitting module includes transmitting light source, and the receiving module includes photosensitive
Chip is at least provided with electromagnetic screen around transmitting one of the light source or sensitive chip.
In some possible embodiments, transmitting optical cavity and reception optical cavity are independent chamber respectively.
In some possible embodiments, the transmitting optical cavity and receive optical cavity share a chamber, by light insulation pad every
It opens, the light insulation pad is made of flexibility every luminescent material, and is connected on the pcb board；Alternatively, the light insulation pad is by hardness every light
Material is made, and is connected on the pcb board by first every light cotton hardness light insulation pad made of the luminescent material.
In some possible embodiments, respectively by fixed between the transmitting optical cavity and reception optical cavity and the pcb board
Position hole rod structure is positioned；Corresponding transmitting optical cavity and reception optical cavity offer location hole, the transmitting respectively on the pcb board
Optical cavity and the setting of reception optical cavity inside the housing, offer the positioning column to match with location hole on the outer casing inner wall.
In some possible embodiments, the electromagnetic screen is metal tube, is respectively arranged at transmitting light source and sense
Around optical chip；The height of the side wall of metal tube is higher than the height of transmitting light source and sensitive chip.
In some possible embodiments, the electromagnetic screen is metallic shield, the transmitting light source and photosensitive
Chip is respectively arranged with metallic shield；The metallic shield has light hole, is set to the metallic shield of transmitting light source
Light hole make emit light source issue transmitting light beam pass through, the metallic shield for being set to sensitive chip to enter sense
The reflected beams of optical chip pass through.
In some possible embodiments, emit the diversing lens being additionally provided in optical path for assembling transmitting light beam, institute
Diversing lens setting is stated in transmitting optical cavity；It is provided on receiving light path for assembling the receiving lens for receiving light beam, it is described to connect
Lens setting is received to receive in optical cavity.
In some possible embodiments, it is provided with the first protective sheet on the exit portal of transmitting optical cavity, is receiving optical cavity
Receiving port on be provided with the second protective sheet.
In some possible embodiments, second protective sheet is used as optical filter simultaneously, in the second protective sheet and reception
Narrow band filter slice is provided between lens.
It further include the radiator being arranged on pcb board in some possible embodiments, the radiator includes dissipating
Hot plate and the insulating heat-conductive pin or insulating heat-conductive glue-line being connected between heat sink and pcb board, the heat sink are sticked in PCB
On plate or the hull outside of optical distance measurement apparatus is set.
Detailed description of the invention
Fig. 1 is the structural schematic diagram one for the optical distance measurement apparatus that the embodiment of the present application 1 provides.
Fig. 2 is the structural schematic diagram two for the optical distance measurement apparatus that the embodiment of the present application 1 provides.
Fig. 3 is the structural schematic diagram for the optical distance measurement apparatus that the embodiment of the present application 3 provides.
In figure: 1, shell；2, pcb board；3, every light cotton；4, light insulation pad；5, it is emitted cone；6, cone is received； 11,
Emit optical cavity；12, optical cavity is received；13, positioning column；21, sensitive chip；22, emit light source；23, bandpass filter；24, it positions
Hole；51, diversing lens；61, receiving lens；7, electromagnetic screen；14, the first protective sheet；15, the second protective sheet；16, narrowband
Filter plate.
Specific embodiment
Further illustrate the technical solution of the application below with reference to the accompanying drawings and specific embodiments.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
Embodiment 1
A kind of optical distance measurement apparatus, as shown in Figs. 1-2, comprising: transmitting module, receiving module and computing module, transmitting light beam is certainly
The transmitting module issues, and at least partly transmitting light beam enters receiving module as the reflected beams after detected object reflection,
The computing module calculates the measurement of the optical distance measurement apparatus Yu detected object according to the signal that receiving module is transmitted
Distance or measurement light intensity.
The transmitting light beam is projected in optical distance measurement apparatus by transmitting optical cavity 11, and the reflected beams are in optical ranging
It is injected in device by receiving optical cavity 12, the transmitting light beam and the reflected beams separate in optical distance measurement apparatus；The transmitting
Module and receiving module are arranged on the same pcb board 2, and the transmitting light beam is in transmitting optical cavity 11 and 2 junction of the pcb board
It is separated with ambient light, the reception light beam is separated in reception optical cavity 12 and 2 junction of the pcb board with ambient light.
The transmitting module includes the driving circuit for emitting light source 22 and the driving transmitting sending transmitting light beam of light source 22, institute
Stating transmitting light source can be laser or LED light source, it is preferred that the transmitting light source 22 is LED light.The receiving module includes sense
Optical chip 21, the computing module include that measurement distance or measurement light intensity are calculated according to the signal that sensitive chip 21 is transmitted
Counting circuit.In 850nm, the outside of the sensitive chip 21 is additionally provided with the dominant wavelength for the infrared light that the LED light issues
Bandpass filter 23, the bandpass filter 23 only allow the light of 850 ± 30nm to pass through.
By in optical distance measurement apparatus will transmitting light beam and receive light beam separate, and will transmitting light beam and receive light beam and
Ambient light separates, and reduces transmitting light beam and receives light beam interfering with each other in measurement and external interference, reduces test and make an uproar
Sound improves accurate testing degree, improves testing efficiency.
The transmitting optical cavity 11 and reception optical cavity 12 share a chamber, and the chamber is arranged in the optical distance measurement apparatus
Shell 1 in, the chamber is protected from light to separate by light insulation pad 4 and respectively corresponds transmitting module and receiving module and form transmitting optical cavity 11
With reception optical cavity 12, the transmitting optical cavity 11 and reception optical cavity 12 can be cylindrical structure, square cartridge structure or circular cone barrel structure
One or more of combinations, the pcb board 2 are fixed by screws in the transmitting optical cavity 11 and receive on optical cavity 12.
It is fitted closely to keep transmitting optical cavity 11 and receive optical cavity 12 with the pcb board 2, by the light screen outside optical cavity
It covers except optical cavity, the transmitting optical cavity 11 and reception optical cavity 12 and the pcb board 2 are welded by ultrasonic wave or hot melting way；
Or it is preferred, the transmitting optical cavity 11 and reception optical cavity 12 are with the pcb board 2 by connecting every optical cement or second every light cotton.
Further, in order to keep transmitting optical cavity 11 and receive the interval of optical cavity 12 to be closely bonded with pcb board 2, institute
It states light insulation pad 4 and is made of flexibility every luminescent material, and abut on the pcb；Preferably, for the convenience of assembling and structure size
The control of precision, the light insulation pad 4 are made of hardness every luminescent material, are led to hardness light insulation pad 4 made of the luminescent material
First is crossed to be connected on the pcb board 2 every light cotton 3.Described first every light cotton 3 and second every light cotton be preferably foam.
For the convenience and accuracy of installation, between the transmitting optical cavity and reception optical cavity 12 and the pcb board 2 respectively
It is positioned by positioning hole collumn structure.The positioning hole collumn structure includes location hole 24 and positioning corresponding with location hole 24
Column 13, location hole 24 can be set also can be set on pcb board 2 on optical cavity.
Preferably, in order to easy to process, corresponding transmitting optical cavity 11 and reception optical cavity 12 offer respectively on the pcb board 2
Location hole 24, the transmitting optical cavity 11 and reception optical cavity 12 are arranged inside shell 1, offer and determine on 1 inner wall of shell
The positioning column 13 that position hole 24 matches.
In order to further adapt to the integration and miniaturization of pcb board 2, improve optical distance measurement apparatus operation stability and
Measurement accuracy, the optical distance measurement apparatus further include the radiator being arranged on pcb board 2.The radiator can be set
It sets in the inside of optical distance measurement apparatus, also can be set in the outside of optical distance measurement apparatus.When the radiator is arranged in institute
When stating inside optical distance measurement apparatus, the optical distance measurement apparatus includes heat sink and is connected to exhausted between heat sink and pcb board 2
Edge heat-conducting glue layer, the insulating heat-conductive glue-line can be arranged all or only for the heater element welded on pcb board 2.
For the demand of adaptive optics range unit centralization volume reductionization, it is preferred that the radiator setting exists
The outside of optical distance measurement apparatus.The radiator includes heat sink and the insulating heat-conductive that is connected between heat sink and pcb board 2
Heat in optical distance measurement apparatus is drawn, is shed by heat sink by pin, the insulating heat-conductive pin, and the heat sink can be with
It is individual heat sink, the host computer that can also be connected with the optical distance measurement apparatus shares a heat sink.Preferably, institute
Stating heat sink is aluminium sheet or graphene board.
In order to further improve the collimation of the transmitting light beam issued from optical distance measurement apparatus, emits and also set up in optical path
There are the diversing lens 51 or diversing lens group for assembling transmitting light beam, it is preferred that the setting of diversing lens 51 is in transmitting light
On the exit portal of chamber 11.
Preferably, the diversing lens group include be sealedly connected on interior convergent lens outside the lamp cap of the LED light or
TR lens and the outer convergent lens being arranged on the exit portal of transmitting optical cavity 11.Namely LED light is by TR lens packages in lamp
In head, the light beam that LED light issues by convergent lens or TR lens post-concentration and is issued, improve transmitting light source 22 intensity and
Collimation.Emit the outer convergent lens on the exit portal of optical cavity 11 further to assemble transmitting light beam in outgoing.
In order to further increase the collimation and/or light intensity of light beam received by optical distance measurement apparatus, the reception light
Road is provided with for assembling the receiving lens 61 or receiving lens group that receive light beam, and the setting of receiving lens 61 is receiving light
On the receiving port of chamber 12.
Preferably, the receiving lens group includes interior receiving lens 61 and outer receiving lens 61, the interior receiving lens 61
It is arranged on the receiving light path between sensitive chip 21 and receiving port, the outer receiving lens 61 are arranged on receiving port.
Preferably, it is described transmitting optical cavity exit portal and receive optical cavity receiving port on be additionally provided with high pass filtering apparatus or
Bandpass filter device.The bandpass filter device can be bandpass filter or bandpass filtering film, and the bandpass filter device is only
Dominant wavelength is allowed to pass through in the light of 850 ± 30nm；The high pass filtering apparatus can be high-pass filter or high pass filter coating, institute
Stating high pass filtering apparatus only allows dominant wavelength station to pass through in the light of 700nm or more.Preferably, the high pass filtering apparatus or band logical
Filtering apparatus is arranged on the outer surface of diversing lens 51 and receiving lens 61 in the form of plated film, simplifies the optical ranging
The structure of device, reduces space hold, reduces production cost.
Influence in order to avoid external environment to diversing lens 51 and receiving lens 61 reduces the attachment of rainwater dust, institute
Transmitting optical cavity 11 is stated in exit portal to being extended with outgoing cone 51 outside optical distance measurement apparatus；The reception optical cavity 12 is receiving
Mouthful cone 61 is received to being extended with outside optical distance measurement apparatus.Preferably, it is provided on the outgoing cone 51 for pacifying
First annular of diversing lens 51 is filled, is provided with the first dispensing channel on the inner sidewall of the outgoing cone 51；The hair
Lens 51 are penetrated to be pasted on first annular platform by dispensing；It is provided on the reception cone 61 for installing receiving lens 61
The second annular table, it is described receive cone 61 inner sidewall on be provided with the second dispensing channel, the receiving lens 61 pass through
Dispensing is pasted onto the second annular table.
Preferably, the outside of the outgoing cone 51 and/or reception cone 61 is removably connected with dustproof cover, with
When the standby optical distance measurement apparatus does not work, diversing lens 51 and receiving lens 61 are completely protected.
Embodiment 2
Unlike the first embodiment, the transmitting optical cavity 11 and reception optical cavity 12 are independent chamber respectively；The transmitting optical cavity
11 can be integrally formed with optical cavity 12 is received, and be also possible to independently of each other, install respectively.Preferably, 11 He of transmitting optical cavity
It receives optical cavity 12 to be integrally formed, simplifies the installation procedure of the transmitting optical cavity 11 and structure optical cavity and the pcb board 2, reduce
The setting quantity of positioning hole collumn structure, assembles more accurate convenience.
In conclusion by optical distance measurement apparatus will transmitting light beam and receive light beam separate, and will transmitting light beam and
It receives light beam to separate with ambient light, reduce transmitting light beam and receives light beam interfering with each other in measurement and external interference, drop
Low test noise, improves accurate testing degree, improves testing efficiency.The setting of the radiator improves optical ranging
The operation stability and measurement accuracy of device.
Embodiment 3
A kind of optical distance measurement apparatus, comprising: transmitting module, receiving module and computing module emit light beam from the transmitting module
It issues, at least partly transmitting light beam enters receiving module as the reflected beams after detected object reflection, and computing module calculates
The optical distance measurement apparatus is at a distance from detected object out.
Emit light beam to project in optical distance measurement apparatus by transmitting optical cavity, the reflected beams are in optical distance measurement apparatus
It is injected by receiving optical cavity, the transmitting light beam and the reflected beams are separated in optical distance measurement apparatus, do not interfere with each other；The transmitting
Module and receiving module are arranged on the same pcb board, and the transmitting light beam is in transmitting optical cavity and the pcb board junction and outside
Portion's light separates, and the reception light beam is separated in reception optical cavity and the pcb board junction with exterior light.
Transmitting module includes transmitting light source, and receiving module includes sensitive chip.
Further, embodiment 1, embodiment 2 basis on, at least transmitting one of light source or sensitive chip around
It is provided with electromagnetic screen 7.Setting electron screening apparatus can reduce the other electronics member devices being subject to around transmitting light source
The interference of part, while also reducing interference of the transmitting light source to other electronic components.Electronic shield is set around sensitive chip
Device can reduce the interference for the other electronic components being subject to, while also reducing sensitive chip and doing to other electronic components
It disturbs.
Wherein, electromagnetic screen is metal tube, is respectively arranged at around transmitting light source and sensitive chip.In order to effectively subtract
Small interference, the height of the side wall of metal tube are higher than the height of transmitting light source and sensitive chip.
In an alternate embodiment of the invention, electromagnetic screen is metallic shield, emits light source and sensitive chip is respectively set
There is metallic shield.Metallic shield has light hole, and the light hole for being set to the metallic shield of transmitting light source to emit
The transmitting light beam that light source issues passes through, and the metallic shield for being set to sensitive chip makes the reflected beams for entering sensitive chip
Pass through.
In embodiment wherein, in order to reinforce dust-proof, the waterproof performance of optical distance measurement apparatus, in the outgoing of transmitting optical cavity
It is provided with the first protective sheet 14 on mouthful, is provided with the second protective sheet 15 on the receiving port for receiving optical cavity.First protective sheet,
The material of two protective sheets is chosen as the materials such as acrylic, glass.
In a preferred embodiment, above-mentioned first protective sheet, the second protective sheet are infrared fileter, through infrared light, resistance
Only visible light；Or infrared light is penetrated, prevent the light of its all band from passing through.
In a preferred embodiment, the second protective sheet is used as optical filter simultaneously, between the second protective sheet and receiving lens
It is provided with narrow band filter slice 16.
Describe the technical principle of the application in conjunction with specific embodiments above.These descriptions are intended merely to explain the application's
Principle, and it cannot be construed to the limitation to the application protection scope in any way.Based on the explanation herein, the technology of this field
Personnel do not need to pay for creative labor the other specific embodiments that can associate the application, these modes are fallen within
Within the protection scope of the application.
Claims (10)
1. a kind of optical distance measurement apparatus characterized by comprising transmitting module, receiving module and computing module, transmitting light beam is certainly
The transmitting module issues, and at least partly transmitting light beam enters receiving module as the reflected beams after detected object reflection,
The computing module calculates the optical distance measurement apparatus at a distance from detected object；
The transmitting light beam is projected in optical distance measurement apparatus by transmitting optical cavity, and the reflected beams are in optical distance measurement apparatus
It is injected by receiving optical cavity, the transmitting light beam and the reflected beams are separated in optical distance measurement apparatus, do not interfere with each other；The transmitting
Module and receiving module are arranged on the same pcb board, and the transmitting light beam is in transmitting optical cavity and the pcb board junction and outside
Portion's light separates, and the reception light beam is separated in reception optical cavity and the pcb board junction with exterior light；
The transmitting module includes transmitting light source, and the receiving module includes sensitive chip, at least in the transmitting light source or sense
Electromagnetic screen is provided with around one of optical chip.
2. optical distance measurement apparatus according to claim 1, which is characterized in that the transmitting optical cavity and reception optical cavity are respectively
Independent chamber.
3. optical distance measurement apparatus according to claim 1, which is characterized in that the transmitting optical cavity and reception optical cavity share one
A chamber, is separated by light insulation pad, and the light insulation pad is made of flexibility every luminescent material, and is connected on the pcb board；
Alternatively, the light insulation pad is made of hardness every luminescent material, pass through first hardness light insulation pad made of the luminescent material
It is connected on the pcb board every light cotton.
4. optical distance measurement apparatus according to claim 1, which is characterized in that the transmitting optical cavity and receive optical cavity with it is described
It is positioned respectively by positioning hole collumn structure between pcb board；Corresponding transmitting optical cavity and reception optical cavity are opened respectively on the pcb board
Equipped with location hole, the transmitting optical cavity and optical cavity setting is received inside the housing, offer on the outer casing inner wall and location hole
The positioning column to match.
5. optical distance measurement apparatus according to claim 1, which is characterized in that the electromagnetic screen is metal tube, point
It is not set to around transmitting light source and sensitive chip；The height of the side wall of metal tube is higher than the height of transmitting light source and sensitive chip
Degree.
6. optical distance measurement apparatus according to claim 1, which is characterized in that the electromagnetic screen is metallic shield
Cover, the transmitting light source and sensitive chip are respectively arranged with metallic shield；
The metallic shield has light hole, and the light hole for being set to the metallic shield of transmitting light source to emit light source hair
Transmitting light beam out passes through, and the metallic shield for being set to sensitive chip passes through the reflected beams for entering sensitive chip.
7. optical distance measurement apparatus according to claim 1, which is characterized in that be additionally provided in transmitting optical path for assembling hair
The diversing lens of irradiating light beam, the diversing lens setting is in transmitting optical cavity；It is provided on receiving light path and receives light for assembling
The receiving lens of beam, the receiving lens setting are receiving in optical cavity.
8. optical distance measurement apparatus according to claim 7, which is characterized in that be provided with the on the exit portal of transmitting optical cavity
One protective sheet is provided with the second protective sheet on the receiving port for receiving optical cavity.
9. optical distance measurement apparatus according to claim 8, which is characterized in that second protective sheet is simultaneously as optical filtering
Piece is provided with narrow band filter slice between the second protective sheet and receiving lens.
10. -9 described in any item optical distance measurement apparatus according to claim 1, which is characterized in that further include being arranged on pcb board
Radiator, the radiator include heat sink and the insulating heat-conductive pin being connected between heat sink and pcb board or absolutely
Edge heat-conducting glue layer, the heat sink are sticked on pcb board or are arranged in the hull outside of optical distance measurement apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017108056899 | 2017-09-08 | ||
| CN201710805689 | 2017-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188450A true CN109188450A (en) | 2019-01-11 |
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810988351.6A Pending CN109188450A (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
| CN201821393253.XU Active CN208888368U (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
| CN201821393903.0U Active CN208888369U (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
| CN201810986871.3A Pending CN109031335A (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821393253.XU Active CN208888368U (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
| CN201821393903.0U Active CN208888369U (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
| CN201810986871.3A Pending CN109031335A (en) | 2017-09-08 | 2018-08-28 | A kind of optical distance measurement apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (4) | CN109188450A (en) |
| WO (1) | WO2019047340A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058250A (en) * | 2019-04-09 | 2019-07-26 | 杭州中科先进技术研究院有限公司 | A kind of range laser radar resistance to crosstalk device |
| CN112327273A (en) * | 2021-01-04 | 2021-02-05 | 南京芯视界微电子科技有限公司 | Packaging structure of flight time distance sensor |
| CN113330652A (en) * | 2019-01-25 | 2021-08-31 | 株式会社电装 | Light source device and distance measuring device |
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| CN109737868A (en) * | 2018-12-21 | 2019-05-10 | 华为技术有限公司 | Flight time mould group and electronic equipment |
| CN112147107A (en) * | 2020-09-22 | 2020-12-29 | 维沃移动通信有限公司 | Reflectivity testing device and method |
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Also Published As
| Publication number | Publication date |
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| CN208888369U (en) | 2019-05-21 |
| CN208888368U (en) | 2019-05-21 |
| WO2019047340A1 (en) | 2019-03-14 |
| CN109031335A (en) | 2018-12-18 |
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