CN205450271U - Scanning distance measuring equipment - Google Patents
Scanning distance measuring equipment Download PDFInfo
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- CN205450271U CN205450271U CN201521135099.2U CN201521135099U CN205450271U CN 205450271 U CN205450271 U CN 205450271U CN 201521135099 U CN201521135099 U CN 201521135099U CN 205450271 U CN205450271 U CN 205450271U
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Abstract
The utility model provides a purpose provides a scanning distance measuring equipment, wherein, scanning distance measuring equipment includes the light beam projector, speculum, receiver lens and receiving terminal photoelectric sensor, the light beam that throws of light beam projector transmission passes through speculum reflection is to scan the target on, receiving terminal photoelectric sensor receive by the receiver lens is concentrated the reverberation of scanning target, wherein, the receiver lens set up in the speculum with between the receiving terminal photoelectric sensor, the receiver lens has central trompil in its primary optic axis direction, the light beam projector set up in the center in the trompil just the light beam projector throw beam direction with the extending direction coincidence of the primary optic axis of receiver lens. Thereby has higher receipt light luminousness to, under the prerequisite of the same size's receiver lens, higher receipt light luminousness has, simultaneously, reduce the reflection number of times of transmitting terminal, improved the emergent power.
Description
Technical field
The application relates to scanning range finding field, particularly relates to a kind of scanning distance-measuring equipment.
Background technology
At present, the scanning rangefinder of existing two kinds of conventional structures, Fig. 1 and Fig. 2 illustrates the brief configuration figure of the scanning rangefinder of prior art, as depicted in figs. 1 and 2, its use (one or more) rotating mirror and make its optical axis swing whole 360 degree one week, in any structure so that the optical axis of (one or more) mirror overlaps with the axle of the motor making this (one or more) mirror rotate.
Diastimeter structure in Fig. 1 uses double-axis motor 42, and common rotating shaft 41a and 41b vertically extends from this motor 42, and on the one hand makes the scanning mirror 43 on axle 41a, on the other hand makes the reception mirror on axle 41b install identically in relation to each other.From the light of beam projector 45 output through projection lens 47, scanning mirror 43 make to deflect and project on object to be illuminated.Reflection light from scanned object enters light receiver 46 by receiving lens 48.The scanning rangefinder motor arrangement of this structure is at scanning mirror and receives between lens, make scanning mirror and the interval received between lens bigger, light path transmitting-receiving is the most coaxial, blind area is big, closely performing poor, the center being additionally, since optical system is the center of diastimeter, and diastimeter vertically extends, so restriction will be produced to how installing diastimeter.
Diastimeter structure in Fig. 2 uses motor 42, and rotary shaft 41c protrudes upward from this motor, and is arranged in rotary shaft 41c by double scanning/reception mirror 49.From the light of beam projector 45 output through projector 50, semitransparent mirror 51 it is reflected down, and is radiated on double scanning/reception mirror 49；The light reflected there is deflected to the left by mirror 49 and is projected on object to be illuminated.Reflection light from scanned object is upward deflected by scanning/reception mirror 49, is transmitted by semitransparent mirror 51, through receiving lens 52, and enters light receiver 46.It is coaxial that the scanning rangefinder of this structure realizes transmitting-receiving by semitransparent mirror, but light transmission is approximately equivalent to the half of ordinary lens, sends and receives and all have lost a large amount of luminous energy.And have employed double scanning/reception mirror to reflect scanning light beam and receive light, may make both each other produce impact and form noise, therefore limit radiation receiving sensitivity and the degree of accuracy of diastimeter.
Authorization Notice No. is CN100365433C, disclose a kind of scanning rangefinder in the Chinese patent of invention entitled " scanning rangefinder ", as shown in its Fig. 1, beam projector 14 is located on the wall of cylindrical shape rotary unit 3 and on its interior, diastimeter is formed so that the horizontal light beam from beam projector 14 is concentrated by scanning mirror 15, it is transformed into vertically-oriented by scanning mirror 30, and be irradiated on double scanning/reception mirror 5, wherein scanning mirror 30 is positioned on the rotation axis of rotary unit 3 and is positioned at the top receiving mirror 17.The light axle base between the optical axis of scanning light beam of directed towards object and the optical axis of the object received reflection light being absorbed in diastimeter sensor is shortened in this invention in scanning rangefinder.But laser instrument being placed in edge, is allowed to transmitting-receiving by two secondary mirror coaxial, laser instrument masks reception lens and gets over 1/4th, cause receiving light and be blocked and reduce a lot；Reflecting mirror must be placed in higher position simultaneously, causes structure to become big.
Summary of the invention
The purpose of the application is to provide a kind of scanning distance-measuring equipment, accepts light transmission rate to improve, saves space and reduce the order of reflection of transmitting terminal to improve emergent power.
For solving above-mentioned technical problem, on the one hand a kind of scanning distance-measuring equipment provided according to the application, including beam projector, reflecting mirror, receive lens and receiving terminal photoelectric sensor, the projecting beam that described beam projector is launched reflexes to scan in target through described reflecting mirror, described receiving terminal photoelectric sensor receives the reflection light of the described scanning target concentrated by described reception lens, wherein, described reception lens are arranged between described reflecting mirror and described receiving terminal photoelectric sensor, described reception lens have center drilling in its primary optical axis direction, described beam projector is arranged in described center drilling and the projecting beam direction of described beam projector overlaps with the bearing of trend of the primary optical axis of described reception lens.
Alternatively, described beam projector is connected with the described counting circuit signal of telecommunication by wire and/or circuit board.Preferably, described circuit board includes flexible PCB or printed circuit board (PCB).
Further, described beam projector includes: photo-emission source and collimating lens, and described photo-emission source launches described projecting beam, and described collimating lens is arranged at the described laser instrument projecting direction along described projecting beam, to adjust described projecting beam.
Further, described scanning distance-measuring equipment also includes: reflecting mirror tumbler, and described reflecting mirror tumbler is mechanically coupled with described reflecting mirror, to drive described reflecting mirror to horizontally rotate with the bearing of trend of the primary optical axis of described reception lens for axle center.
Further, described reflecting mirror tumbler includes: rotating unit, support unit, gear unit and drive apparatus；Described rotating unit connects described reflecting mirror, in order to drive described reflecting mirror to rotate；Described support unit is fixing supports described reception lens；The first component of described gear unit is fixing connects described fixed cell, and the second component of described gear unit connects drive apparatus；Described drive apparatus machinery drives the second component motion of described gear unit, and the first component of described gear unit and the second component of described gear unit coordinate the described rotating unit of drive to rotate, so that described reflecting mirror rotates.
Further, first component and the second component of described gear unit includes following any one or appoints several combinations: two gears being meshed；The conveyer belt matched and transmission wheel；The magnet stator matched and magnet rotor.
Alternatively, described drive apparatus and described reception lens are arranged at homonymy or the heteropleural of described support unit.
Further, described ranging scan equipment also includes: code device, including grating and photoswitch, described grating is arranged on described rotating unit and follows described rotating unit and rotates, described photoswitch is arranged on described support unit, described grating coordinates described photoswitch, to obtain the rotary speed of described reflecting mirror, the anglec of rotation；Counting circuit, described counting circuit receives the signal of telecommunication converted by described reflection light that described receiving terminal photoelectric sensor is sent, to calculate the distance of described scanning target.
Further, the described beam projector a length of 1mm～12mm, the described reception lens a length of 20mm～60mm on the direction of primary optical axis being perpendicular to described reception lens along the direction of the primary optical axis being perpendicular to described reception lens.
Further, the photo-emission source of described beam projector includes that laser instrument or LED, the type of described receiving terminal sensor at least include following any one: photodiode, avalanche diode or photomultiplier tube.
On the other hand a kind of scanning distance-measuring equipment provided according to the application, including beam projector, reflecting mirror, receive lens and receiving terminal photoelectric sensor, the projecting beam that described beam projector is launched reflexes to scan in target through described reflecting mirror, described receiving terminal photoelectric sensor receives the reflection light of the described scanning target concentrated by described reception lens, wherein, described reception lens are arranged between described reflecting mirror and described receiving terminal photoelectric sensor, described beam projector is arranged between described reception lens and described reflecting mirror, and the projecting beam of described beam projector is along reflecting mirror described in the bearing of trend directive of the primary optical axis of described reception lens.
Further, described scanning distance-measuring equipment also includes: support means, and described support means supports described beam projector.
Further, described reception lens have center drilling in its primary optical axis direction, and the supply line of described beam projector through described center drilling and powers for described beam projector.
Further, described support means is also powered for described beam projector, and described support means includes circuit board, it is preferable that described circuit board includes flexible PCB or printed circuit board (PCB)
Alternatively, described beam projector includes: photo-emission source and collimating lens, and described photo-emission source launches described projecting beam, and described collimating lens is arranged at the described laser instrument projecting direction along described projecting beam, to adjust described projecting beam.
Further, described scanning distance-measuring equipment also includes: reflecting mirror tumbler, and described reflecting mirror tumbler is mechanically coupled with described reflecting mirror, to drive described reflecting mirror to horizontally rotate with the bearing of trend of the primary optical axis of described reception lens for axle center.
Further, described reflecting mirror tumbler includes: rotating unit, support unit, gear unit and drive apparatus；Described rotating unit connects described reflecting mirror, in order to drive described reflecting mirror to rotate；Described support unit is fixing supports described reception lens；The first component of described gear unit is fixing connects described fixed cell, and the second component of described gear unit connects drive apparatus；Described drive apparatus machinery drives the second component motion of described gear unit, and the first component of described gear unit and the second component of described gear unit coordinate the described rotating unit of drive to rotate, so that described reflecting mirror rotates.
Further, first component and the second component of described gear unit includes following any one or appoints several combinations: two gears being meshed；The conveyer belt matched and transmission wheel；The magnet stator matched and magnet rotor.
Alternatively, described drive apparatus and described reception lens are arranged at homonymy or the heteropleural of described support unit.
Further, described ranging scan equipment also includes: code device, including grating and photoswitch, described grating is arranged on described rotating unit and follows described rotating unit and rotates, described photoswitch is arranged on described support unit, described grating coordinates described photoswitch, to obtain the rotary speed of described reflecting mirror, the anglec of rotation；Counting circuit, described counting circuit receives the signal of telecommunication converted by described reflection light that described receiving terminal photoelectric sensor is sent, to calculate the distance of described scanning target.
Further, the described beam projector a length of 1mm～12mm, the described reception lens a length of 20mm～60mm on the direction of primary optical axis being perpendicular to described reception lens along the direction of the primary optical axis being perpendicular to described reception lens.
Further, the photo-emission source of described beam projector includes that laser instrument or LED, the type of described receiving terminal sensor at least include following any one: photodiode, avalanche diode or photomultiplier tube.
Compared with prior art, one embodiment of the application has center drilling at described reception lens in its primary optical axis direction, described beam projector is arranged between described reception lens and described reflecting mirror, and the projecting beam of described beam projector is along the bearing of trend of the primary optical axis of described reception lens and through reflecting mirror described in described center drilling directive.Decrease and reception lens are blocked, on the premise of the reception lens of formed objects, there is higher reception light light transmittance, and, on the premise of the reception lens of formed objects, there is higher reception light light transmittance.Because beam projector module is built in reception lens, saves space, reduce equipment size.
Further, compared with prior art, the embodiment of the present application eliminates one group of transmitting mirror so that the order of reflection of transmitting terminal reduces, and improves emergent power.
Accompanying drawing explanation
By reading the detailed description being made non-limiting example made with reference to the following drawings, other features, purpose and advantage will become more apparent upon:
Fig. 1 illustrates the brief configuration schematic diagram of not coaxial diastimeter in prior art；
Fig. 2 illustrates the brief configuration schematic diagram of coaxial diastimeter in prior art；
Fig. 3 illustrates a kind of brief configuration schematic diagram scanning distance-measuring equipment according to one embodiment of the application；
Fig. 4 illustrates a kind of structural representation scanning distance-measuring equipment according to one embodiment of the application；
Fig. 5 illustrates the structural representation of another the scanning distance-measuring equipment according to one embodiment of the application；
Fig. 6 (a) and Fig. 6 (b) is shown respectively according to the device structure schematic diagram scanning distance-measuring equipment in the application preferred embodiment；
Fig. 7 illustrates a kind of structural representation scanning distance-measuring equipment according to another embodiment of the application；
Fig. 8 illustrates the structural representation of another the scanning distance-measuring equipment according to another embodiment of the application.
In accompanying drawing, same or analogous reference represents same or analogous parts.
Detailed description of the invention
Below in conjunction with the accompanying drawings the application is described in further detail.
It should be noted that following embodiment is only the preferred embodiment of the application, and not all.Based on the embodiment in embodiment, those skilled in the art are obtained other embodiments on the premise of not making creative work, broadly falls into the protection domain of the application.
On the one hand a kind of brief configuration schematic diagram scanning distance-measuring equipment provided according to the application, described scanning distance-measuring equipment includes beam projector, reflecting mirror 13, receives lens 14 and receiving terminal photoelectric sensor 15；The projecting beam that described beam projector is launched reflexes to scan in target through described reflecting mirror 13, described receiving terminal photoelectric sensor 15 receives the reflection light of the described scanning target concentrated by described reception lens 14, wherein, described reception lens 14 are arranged between described reflecting mirror 13 and described receiving terminal photoelectric sensor 15, described reception lens 14 have center drilling in its primary optical axis direction, and described beam projector is arranged in described center drilling and the projecting beam direction of described beam projector overlaps with the bearing of trend of the primary optical axis of described reception lens 14.
Above-mentioned beam projector includes: photo-emission source 11 and collimating lens 12, and described photo-emission source 11 is used for launching projecting beam, and described collimating lens 12 is arranged at the described photo-emission source 11 front along the projecting direction of described projecting beam, to adjust described projecting beam.
Specifically, generally using laser as light source, owing to laser dissipates the least, and light beam can be easily through narrow path, can reduce launch optical channel and receive optical channel aperture, therefore photo-emission source 11 is arranged on reception lens 14 perforate inside, photo-emission source 11 launch light through collimating lens 12 be transformed into vertically-oriented after impact on reflecting mirror 13, transmitting terminal order of reflection reduces, and improves emergent power.Meanwhile, project light beams upon device to be arranged on inside reception lens 14 perforate so that scanning distance-measuring equipment is smaller and more exquisite, the compactest.It addition, described beam projector is arranged in described perforate and the projecting beam direction of described beam projector overlaps with the bearing of trend of the primary optical axis of described reception lens 14.So, the optical axis of the scanning light beam of directed towards object and the object received being absorbed in receiving terminal photoelectric sensor 15 reflect the optical axis coincidence of light so that even if the most not producing blind spot relative to the object in closely.
Further, described beam projector width along the direction of the primary optical axis being perpendicular to described reception lens 14 is 1mm～12mm, the described reception lens 14 a length of 20mm～60mm on the direction of primary optical axis being perpendicular to described reception lens 14.
At this, the aperture of perforate on lens 14 is received in order to limit, described beam projector width along the direction of the primary optical axis being perpendicular to described reception lens 14 arranges less, bandpass is 1mm～12mm, ensure that meet by projection light under the reflection case without scanning mirror vertically impact penetrate to level after reflecting mirror 13 and to be scanned target, scan the light of target reflection to be received lens 14 and import in receiving terminal photoelectric sensor 15, it is to avoid blind spot occurs simultaneously.Wherein, collimating lens 12 is used for the collimation to light, receives lens 14 and is used for the concentration to light, it is simple to the reception optical information of receiving terminal photoelectric sensor 14, processes it.Arranging the reasonably reception lens 14 length on the direction of primary optical axis being perpendicular to described reception lens 14 makes reception lens 14 the light concentration of the scanning target that reflecting mirror 13 reflects can be made scanning device compact conformation simultaneously.
Here, make throw light point to target by the rotation of reflecting mirror 13, thus realize scanning range finding.Further, described scanning distance-measuring equipment also includes that reflecting mirror tumbler, described reflecting mirror tumbler are mechanically coupled with described reflecting mirror, to drive described reflecting mirror to horizontally rotate with the bearing of trend of the primary optical axis of described reception lens for axle center.Fig. 4 illustrates a kind of structural representation scanning distance-measuring equipment according to one embodiment of the application, and as shown in Figure 4, described reflecting mirror tumbler includes: rotating unit 4a, support unit 4c, gear unit 5 and drive apparatus 3；Described rotating unit 4a connects described reflecting mirror 13, in order to drive described reflecting mirror to rotate；Described support unit 4c is fixing supports described reception lens 14；The first component 5a of described gear unit 5 is fixing connects described fixed cell 10, and the second component 5b of described gear unit 5 connects drive apparatus 3；Described drive apparatus 3 machinery drives the second component 5b motion of described gear unit 5, and the first component 5a of described the gear unit 5 and second component 5b of described gear unit 5 coordinates the described rotating unit of drive to rotate, so that described reflecting mirror rotates.Wherein, the first component 5a and second component 5b of described gear unit includes following any one or appoints several combinations: two gears being meshed；The conveyer belt matched and transmission wheel；The magnet stator matched and magnet rotor.Described drive apparatus 3 can be machinery motor or motor, drive apparatus 3 applies driving force to gear unit and drives the reflecting mirror 13 being connected with fixed cell to horizontally rotate for axle center with the bearing of trend of the primary optical axis of described reception lens 14, to reach the purpose of throw light sensing scanning target, thus realize scanning range finding.
With continued reference to Fig. 4, described ranging scan equipment also includes: code device and counting circuit, including grating 9 and photoswitch 8, described grating 9 is arranged on described rotating unit 4a and follows described rotating unit 4a and rotates, described photoswitch 8 is arranged on described support unit 4c, described grating 9 coordinates described photoswitch 8, to obtain the rotary speed of described reflecting mirror 13, the anglec of rotation；Described counting circuit 6 receives the signal of telecommunication converted by described reflection light that described receiving terminal photoelectric sensor 15 is sent, to calculate the distance of described scanning target.
In preferred embodiment, power supply and information transmit circuit line 16 and connect counting circuit 6, for powering to counting circuit 6, simultaneously, the reflection light received is sent to counting circuit 6 is converted to the signal of telecommunication, to calculate the distance of described scanning target by power supply and information transmission circuit line 16 by described receiving terminal photoelectric sensor 15.Projecting light beams upon device information and receiving terminal photoelectric sensor 15 information passes to counting circuit, counting circuit carries out being calculated the distance of scanning target, and combines calculated distance and the rotary position information from code device obtains the position of scanned target.Wherein, described code device includes photoswitch 8 and grating 9, described grating 9 is arranged on described rotating unit 4 and follows described rotating unit 4 and rotates, described photoswitch 8 is arranged on described support unit 4b, described grating 9 coordinates described photoswitch 8, to obtain the rotary speed of described reflecting mirror 13, the anglec of rotation.
Scanning distance-measuring equipment described in the embodiment of the present application, is a kind of light wave measurement device, and its principle is to be found range by the method calculating flight time (TOF) or amplitude modulation (AM) light wave.Such as, distance-measuring equipment sends one section of shorter laser pulse and i.e. scans in target to measured object, if light is propagated in atmosphere with speed c, it is t in scanning target and distance-measuring equipment point-to-point transmission round trip required time, then scanning target can represent with following with distance-measuring equipment distance between two points D: D=ct/2, wherein, in formula, D represents the distance of measured object and distance-measuring equipment point-to-point transmission；C represents the speed that light is propagated in an atmosphere；T represents light and comes and goes the time that measured object is once required with distance-measuring equipment.Additionally, when using process based on amplitude modulation (AM), modulate distance-measuring equipment laser or LED light with given not Frequency, and the distance between distance-measuring equipment and scanning target can be learnt from the phase place in modulated signal and the difference between the phase place of target reflecting light.More specifically, be reflected back with the light beam impact scanning target of frequency f modulation, the light of return will have phase contrast Φ, its speed and the distance between target and distance-measuring equipment determine phase contrast.Therefore, the difference of phase contrast Φ depends on distance L of light velocity c and target, can learn distance L by detection phase contrast Φ.
Alternatively, described beam projector is connected with the described counting circuit signal of telecommunication by wire and/or circuit board.
As shown in Figure 4, the photo-emission source 11 in described beam projector is connected with described counting circuit 6 by wire 7, and counting circuit provides electric energy to make the normal throw light of laser instrument for it.Fig. 5 illustrates the structural representation of another the scanning distance-measuring equipment according to one embodiment of the application, described beam projector is arranged on circuit board 18, wherein, circuit board 18 can be pcb board (printed circuit board (PCB)) or FPC plate (flexible PCB), on the one hand circuit board 18 is powered for beam projector and can provide circuit counting device, on the other hand provides beam projector and supports.
Further, described drive apparatus and described reception lens are arranged at homonymy or the heteropleural of described support unit.Fig. 6 (a) and Fig. 6 (b) is shown respectively according to the device structure schematic diagram scanning distance-measuring equipment in the application preferred embodiment, as shown in Fig. 6 (a) and 6 (b), wherein, drive apparatus 3 in Fig. 6 (a) arranges the opposite side being positioned at support unit compared with Fig. 5, and the drive apparatus 3 in Fig. 6 (b) arranges the upper end being positioned at reflecting mirror compared with Fig. 5.Other structure is all same or similar with Fig. 4, does not repeats them here.
Additionally, show the structural representation of the ranging scan equipment of one preferred embodiment of the application in Fig. 4, this device structure also includes base 1, upper cover 2, and wherein, this base 1 and upper cover 2 constitute the housing of this equipment, with protection scanning distance-measuring equipment.
Fig. 7 illustrates a kind of structural representation scanning distance-measuring equipment according to another embodiment of the application, and described scanning distance-measuring equipment includes beam projector, reflecting mirror 13, receives lens 14 and receiving terminal photoelectric sensor 15；The projecting beam that described beam projector is launched reflexes to scan in target through described reflecting mirror 13, described receiving terminal photoelectric sensor 15 receives the reflection light of the described scanning target concentrated by described reception lens 14, wherein, described reception lens 14 are arranged between described reflecting mirror 13 and described receiving terminal photoelectric sensor 15, described beam projector is arranged between described reception lens 14 and described reflecting mirror 13, and the projecting beam of described beam projector is along reflecting mirror 13 described in the bearing of trend directive of the primary optical axis of described reception lens 14.
Above-mentioned beam projector includes: photo-emission source 11 and collimating lens 12, and described photo-emission source 11 is used for launching projecting beam, and described collimating lens 12 is arranged at the described photo-emission source 11 front along the projecting direction of described projecting beam, to adjust described projecting beam.Preferably, the photo-emission source of described beam projector includes that laser instrument or LED, the type of described receiving terminal sensor at least include following any one: photodiode, avalanche diode or photomultiplier tube.
Specifically, generally using laser as light source, owing to laser dissipates the least, and light beam easily through narrow path, but can may be used without LED and can carry out the LED of high frequency modulated as light source, employing, and the luminous point launching light is bigger.Photo-emission source 11 is arranged on reception lens 14 and reflecting mirror 13 between, photo-emission source 11 launch light through collimating lens be transformed into vertically-oriented after impact on reflecting mirror 13, transmitting terminal order of reflection reduce, improve emergent power.It addition, the optical axis in the projecting beam direction of described beam projector overlaps with the bearing of trend of the primary optical axis of described reception lens 14.So, the optical axis of the scanning light beam of directed towards object and the object received being absorbed in receiving terminal photoelectric sensor 15 reflect the optical axis coincidence of light so that even if the most not producing blind spot relative to the object in closely.Additionally, receiving terminal photoelectric sensor 15 can be PIN (photodiode), APD (avalanche diode) or PMT (photomultiplier tube), wherein, PIN works under backward voltage effect, photoelectric current is produced so that obtain the signal of telecommunication with the load on the external circuits of PIN when receiving light and irradiating；Output is big, highly sensitive, respond fast feature to use APD to have as receiving terminal photoelectric sensor, but when incident optical power is big, the noise that gain causes is big, brings current distortion；PMT have employed Secondary Emission dynode system, so photomultiplier tube detection ultraviolet, the emittance of visible and near infrared region photodetector in, there is high sensitivity and extremely low noise, and, photomultiplier tube also has the advantages such as response is quick, cathode area is big.
Further, described reception lens 14 have center drilling in its primary optical axis direction, and the supply line of described beam projector through described center drilling and powers for described beam projector.
The present embodiment is identical or essentially identical with the content of other part-structures of identical label in the scanning distance-measuring equipment shown in Fig. 3, for simplicity's sake, repeats no more, and is incorporated herein by reference.Compared to the scanning distance-measuring equipment shown in Fig. 3, the difference of ranging scan equipment described in the present embodiment is: be arranged on by described beam projector in the support means received between lens 14 and reflecting mirror 13, it is not necessary to be embedded in the center drilling receiving lens.
In the present embodiment, photo-emission source 11 and collimating lens 12 in described beam projector are arranged between described reception lens 14 and described reflecting mirror 13, described reception lens 14 have center drilling in primary optical axis direction, and wire 7 is connected to photo-emission source 11 lower end by receiving the empty open-work of lens 14.Scanning distance-measuring equipment in this embodiment meet light beam that photo-emission source 11 sends after collimating lens 12 adjusts impact to reflecting mirror 13, being reflected mirror occurs 90 ° of deflection outgoing to be scanned target, the light that object reflects be reflected mirror 13 deflect 90 ° inject reception lens 14, being received after lens 14 are concentrated injects in receiving terminal photoelectric sensor 15, and power supply and information transmit circuit line 16 and the relevant information of acquisition is sent in distance calculating counting circuit.
Further, described scanning distance-measuring equipment also includes: support means, and described support means supports described beam projector.Support means 17 is used for supporting beam projector as shown in Figure 7, when described reception lens 14 have center drilling in primary optical axis direction, when wire 7 is connected to photo-emission source 11 lower end by receiving the center drilling of lens 14, support means 17 is common support member, does not have electrically.
Fig. 8 illustrates the structural representation of another the scanning distance-measuring equipment according to another embodiment of the application, on the basis of Fig. 7, support means 18 shown in Fig. 8 not only supports described beam projector and also powers for described beam projector, when described reception lens 14 do not have center drilling in primary optical axis direction, support means 18 preferred circuit plate, can be pcb board or FPC plate, on the one hand circuit board 18 is powered for beam projector and can provide circuit counting device, on the other hand provides beam projector and supports.
Compared with prior art, one embodiment of the application has center drilling at described reception lens in its primary optical axis direction, described beam projector is arranged between described reception lens and described reflecting mirror, and the projecting beam of described beam projector is along the bearing of trend of the primary optical axis of described reception lens and through reflecting mirror described in described center drilling directive.Decrease and reception lens are blocked, on the premise of the reception lens of formed objects, there is higher reception light light transmittance, and, on the premise of the reception lens of formed objects, there is higher reception light light transmittance.Because beam projector module is built in reception lens, saves space, reduce equipment size.
Further, compared with prior art, the embodiment of the present application eliminates scanning mirror so that the order of reflection of transmitting terminal reduces, and improves emergent power.
Certainly, it is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit herein or basic feature, it is possible to realize the application in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present application is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim be included in the application.Should not be considered as limiting involved claim by any reference in claim.
Claims (23)
1. a scanning distance-measuring equipment, it is characterized in that, described scanning distance-measuring equipment includes beam projector, reflecting mirror, reception lens and receiving terminal photoelectric sensor, the projecting beam that described beam projector is launched reflexes to scan in target through described reflecting mirror, described receiving terminal photoelectric sensor receives the reflection light of the described scanning target concentrated by described reception lens, wherein
Described reception lens are arranged between described reflecting mirror and described receiving terminal photoelectric sensor, described reception lens have center drilling in its primary optical axis direction, and described beam projector is arranged in described center drilling and the projecting beam direction of described beam projector overlaps with the bearing of trend of the primary optical axis of described reception lens.
Scanning distance-measuring equipment the most according to claim 1, it is characterised in that described beam projector is connected with the counting circuit signal of telecommunication by wire and/or circuit board.
Scanning distance-measuring equipment the most according to claim 2, it is characterised in that when described beam projector is connected with the described counting circuit signal of telecommunication by described circuit board, described circuit board includes flexible PCB or printed circuit board (PCB).
Scanning distance-measuring equipment the most according to claim 1, it is characterised in that described beam projector includes:
Photo-emission source and collimating lens, the described photo-emission source described projecting beam of transmitting, described collimating lens is arranged at the described photo-emission source projecting direction along described projecting beam, to adjust described projecting beam.
Scanning distance-measuring equipment the most according to claim 1, it is characterised in that described scanning distance-measuring equipment also includes: reflecting mirror tumbler,
Described reflecting mirror tumbler is mechanically coupled with described reflecting mirror, to drive described reflecting mirror to horizontally rotate with the bearing of trend of the primary optical axis of described reception lens for axle center.
Scanning distance-measuring equipment the most according to claim 5, it is characterised in that described reflecting mirror tumbler includes: rotating unit, support unit, gear unit and drive apparatus；
Described rotating unit connects described reflecting mirror, in order to drive described reflecting mirror to rotate；
Described support unit is fixing supports described reception lens；
The first component of described gear unit is fixing connects described fixed cell, and the second component of described gear unit connects drive apparatus；
Described drive apparatus machinery drives the second component motion of described gear unit, and the first component of described gear unit and the second component of described gear unit coordinate the described rotating unit of drive to rotate, so that described reflecting mirror rotates.
Scanning distance-measuring equipment the most according to claim 6, it is characterised in that the first component of described gear unit and second component include following any one or appoint several combinations: two gears being meshed；The conveyer belt matched and transmission wheel；The magnet stator matched and magnet rotor.
Scanning distance-measuring equipment the most according to claim 6, it is characterised in that described drive apparatus and described reception lens are arranged at homonymy or the heteropleural of described support unit.
Scanning distance-measuring equipment the most according to claim 6, it is characterised in that described scanning distance-measuring equipment also includes:
Code device, including grating and photoswitch, described grating is arranged on described rotating unit and follows described rotating unit and rotates, and described photoswitch is arranged on described support unit, described grating coordinates described photoswitch, to obtain the rotary speed of described reflecting mirror, the anglec of rotation；
Counting circuit, described counting circuit receives the signal of telecommunication converted by described reflection light that described receiving terminal photoelectric sensor is sent, to calculate the distance of described scanning target.
Scanning distance-measuring equipment the most according to any one of claim 1 to 9, it is characterized in that, the described beam projector a length of 1mm～12mm, the described reception lens a length of 20mm～60mm on the direction of primary optical axis being perpendicular to described reception lens along the direction of the primary optical axis being perpendicular to described reception lens.
11. scanning distance-measuring equipments according to any one of claim 1 to 9, it is characterized in that, the photo-emission source of described beam projector includes that laser instrument or LED, the type of described receiving terminal sensor at least include following any one: photodiode, avalanche diode or photomultiplier tube.
12. 1 kinds of scanning distance-measuring equipments, it is characterized in that, described scanning distance-measuring equipment includes beam projector, reflecting mirror, reception lens and receiving terminal photoelectric sensor, the projecting beam that described beam projector is launched reflexes to scan in target through described reflecting mirror, described receiving terminal photoelectric sensor receives the reflection light of the described scanning target concentrated by described reception lens, it is characterized in that
Described reception lens are arranged between described reflecting mirror and described receiving terminal photoelectric sensor, described beam projector is arranged between described reception lens and described reflecting mirror, and the projecting beam of described beam projector is along reflecting mirror described in the bearing of trend directive of the primary optical axis of described reception lens.
13. scanning distance-measuring equipments according to claim 12, it is characterised in that described scanning distance-measuring equipment also includes:
Support means, described support means supports described beam projector.
14. scanning distance-measuring equipments according to claim 13, it is characterised in that described reception lens have center drilling in its primary optical axis direction, the supply line of described beam projector through described center drilling and powers for described beam projector.
15. scanning distance-measuring equipments according to claim 13, it is characterised in that described support means is also powered for described beam projector, and described support means includes circuit board.
16. scanning distance-measuring equipments according to claim 15, it is characterised in that described circuit board includes flexible PCB or printed circuit board (PCB).
17. scanning distance-measuring equipments according to claim 12, it is characterised in that described beam projector includes:
Photo-emission source and collimating lens, the described photo-emission source described projecting beam of transmitting, described collimating lens is arranged at the described photo-emission source projecting direction along described projecting beam, to adjust described projecting beam.
18. scanning distance-measuring equipments according to claim 12, it is characterised in that described scanning distance-measuring equipment also includes: reflecting mirror tumbler,
Described reflecting mirror tumbler is mechanically coupled with described reflecting mirror, to drive described reflecting mirror to horizontally rotate with the bearing of trend of the primary optical axis of described reception lens for axle center.
19. according to the scanning distance-measuring equipment according to any one of claim 12 to 18, it is characterised in that described reflecting mirror tumbler includes: rotating unit, support unit, gear unit and drive apparatus；
Described rotating unit connects described reflecting mirror, in order to drive described reflecting mirror to rotate；
Described support unit is fixing supports described reception lens；
The first component of described gear unit is fixing connects described fixed cell, and the second component of described gear unit connects drive apparatus；
Described drive apparatus machinery drives the second component motion of described gear unit, and the first component of described gear unit and the second component of described gear unit coordinate the described rotating unit of drive to rotate, so that described reflecting mirror rotates.
20. scanning distance-measuring equipments according to claim 19, it is characterised in that the first component of described gear unit and second component include following any one or appoint several combinations: two gears being meshed；The conveyer belt matched and transmission wheel；The magnet stator matched and magnet rotor.
21. scanning distance-measuring equipments according to claim 19, it is characterised in that described drive apparatus and described reception lens are arranged at homonymy or the heteropleural of described support unit.
22. scanning distance-measuring equipments according to claim 19, it is characterised in that described scanning distance-measuring equipment also includes:
Code device, including grating and photoswitch, described grating is arranged on described rotating unit and follows described rotating unit and rotates, and described photoswitch is arranged on described support unit, described grating coordinates described photoswitch, to obtain the rotary speed of described reflecting mirror, the anglec of rotation；
Counting circuit, described counting circuit receives the signal of telecommunication converted by described reflection light that described receiving terminal photoelectric sensor is sent, to calculate the distance of described scanning target.
23. scanning distance-measuring equipments according to claim 12, it is characterized in that, the photo-emission source of described beam projector includes that laser instrument or LED, the type of described receiving terminal sensor at least include following any one: photodiode, avalanche diode or photomultiplier tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135099.2U CN205450271U (en) | 2015-12-31 | 2015-12-31 | Scanning distance measuring equipment |
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| CN201521135099.2U CN205450271U (en) | 2015-12-31 | 2015-12-31 | Scanning distance measuring equipment |
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| CN205450271U true CN205450271U (en) | 2016-08-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467398A (en) * | 2015-12-31 | 2016-04-06 | 上海思岚科技有限公司 | Scanning ranging device |
| CN108627851A (en) * | 2018-04-20 | 2018-10-09 | 金华市蓝海光电技术有限公司 | A kind of integrated rotating movement for laser radar sensor |
| CN112292609A (en) * | 2018-06-14 | 2021-01-29 | 松下知识产权经营株式会社 | Object detection device and photodetector |
| CN112711959A (en) * | 2021-01-15 | 2021-04-27 | 苏州浩创信息科技有限公司 | Packaging structure, scanner and wearable intelligent device |
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2015
- 2015-12-31 CN CN201521135099.2U patent/CN205450271U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467398A (en) * | 2015-12-31 | 2016-04-06 | 上海思岚科技有限公司 | Scanning ranging device |
| CN105467398B (en) * | 2015-12-31 | 2018-08-21 | 上海思岚科技有限公司 | Scan distance-measuring equipment |
| CN108627851A (en) * | 2018-04-20 | 2018-10-09 | 金华市蓝海光电技术有限公司 | A kind of integrated rotating movement for laser radar sensor |
| CN108627851B (en) * | 2018-04-20 | 2021-05-11 | 金华市蓝海光电技术有限公司 | Integrated rotary machine core for laser radar sensor |
| CN112292609A (en) * | 2018-06-14 | 2021-01-29 | 松下知识产权经营株式会社 | Object detection device and photodetector |
| CN112711959A (en) * | 2021-01-15 | 2021-04-27 | 苏州浩创信息科技有限公司 | Packaging structure, scanner and wearable intelligent device |
| CN112711959B (en) * | 2021-01-15 | 2024-02-02 | 苏州浩创信息科技有限公司 | Packaging structure, scanner and wearable intelligent device |
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