CN205015479U - Laser rangefinder of single -lens common optical axis output - Google Patents
Laser rangefinder of single -lens common optical axis output Download PDFInfo
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- CN205015479U CN205015479U CN201520701620.8U CN201520701620U CN205015479U CN 205015479 U CN205015479 U CN 205015479U CN 201520701620 U CN201520701620 U CN 201520701620U CN 205015479 U CN205015479 U CN 205015479U
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Abstract
The utility model provides a laser rangefinder of single -lens common optical axis output, its includes laser emission subtotal laser receiving part, laser emission part includes very thin pipe of laser emission pipe, corner and the first objective of arranging in proper order along the optical axis, and the very thin pipe of corner is equipped with the speculum in the corner, make laser reflect first objective through the speculum, and the laser receiving part includes first objective, with second objective, the laser receiver of first objective common optical axis, two objective and laser receiver install on a sleeve along the optical axis direction in proper order. Above -mentioned laser rangefinder's transmission light path and receipt light path angularity to the first objective that share only need one to measure the camera lens, make simple structure compact, small, light in weight, and the maintenance cost is low. And the very thin pipe of corner makes the emitting area greatly reduce, and the area of the receipt light that the quilt was sheltered from reduces to minimum, receives energy loss and reduces to minimum, and measuring range is wide, the precision is high.
Description
Technical field
The utility model relates to Laser Measuring control techniques field, is specifically related to the laser ranging system that a kind of single-lens common optical axis exports.
Background technology
Laser ranging system utilizes laser to carry out the instrument and equipment of Accurate Determining to target range.Laser ranging system operationally to the beam of laser that target injection is very thin, is received the laser beam be reflected back by target by photoelectric receiving device.Timer measures laser beam from the time being transmitted into reception, and then calculates the distance from Laser output position to measured target.Existing range finder using laser launching and receiving optical axis separates, volume is large, and optical axis and focal length all can not adjust, the application of laser ranging system is greatly limited and fetters, therefore, urgently research and develop a kind of dependable performance, find range excellent, volume is little, and the laser ranging system that optical axis adjustable focal length is adjustable.
Utility model content
In view of this, provide a kind of simple and compact for structure, volume is little, lightweight, and measurement range is wide, good stability, and measuring accuracy is high, the laser ranging system that the single-lens common optical axis that maintenance cost is low exports.
The laser ranging system that a kind of single-lens common optical axis exports, it comprises Laser emission part and laser pick-off part, described laser emission section divides the LASER Discharge Tube comprising and be arranged in order setting along optical axis, the very thin pipe of corner and the first object lens, the very thin pipe of described corner is on the corner provided with catoptron, to enter after laser is sent by LASER Discharge Tube in the very thin pipe of corner and to reflex to the first object lens through catoptron, described laser pick-off part comprises described first object lens, with the second object lens of the first object lens common optical axis, laser pickoff, described first object lens, second object lens and laser pickoff are installed on a sleeve successively along optical axis direction.
Further, the very thin pipe of described corner is 90 degree of corners, and described catoptron becomes the catoptron of 45 degree.
Further, the very thin pipe of described corner comprises transverse pipe and longitudinal pipe, and the central shaft of described transverse pipe overlaps with the primary optical axis of the first object lens, the central shaft of described longitudinal pipe and the transmitting optical axis coincidence of LASER Discharge Tube.
Further, the caliber of the very thin pipe of described corner is 5mm-6mm.
Further, described laser pickoff has laser pick-off pipe, described sleeve has the first end of close thing side and the second end away from thing side, described laser pick-off pipe is assemblied in the second end of described sleeve, described first object lens are positioned at the first end of sleeve, described laser pick-off pipe, the second object lens and the first object lens common optical axis.
Further, between described laser pick-off pipe and the second end of described sleeve, be provided with the first axial adjustment structure, for regulating the distance between laser pick-off pipe and the second object lens.
Further, the installation corner of described laser pick-off pipe is respectively equipped with primary optic axis adjustment structure, for regulating the position of laser pick-off pipe in the plane perpendicular to reception optical axis to regulate the position of two objective lens optical axis.
Further, the very thin pipe of described corner is assemblied on a sleeve pipe, described sleeve pipe is installed on the front end of emission of LASER Discharge Tube with co-axial form, the second axial adjustment structure is provided with between the very thin pipe of described corner and sleeve pipe, for regulating the very thin pipe of corner position in the axial direction, make the optical axis alignment of catoptron and the first object lens.
Further, the corner of described LASER Discharge Tube is respectively equipped with the second optical axis regulating structure, for regulating the very thin pipe of corner perpendicular to the position of launching in the plane of optical axis, makes the optical axis alignment of catoptron and the first object lens.
Further, be provided with the whole reflection deflecting mirror of tilt adjustable at the light-emitting window of described first object lens, change predetermined angular to make range finding direction.
In the laser ranging system that above-mentioned single-lens common optical axis exports, the laser of transmitting forwards the first object lens to through the very thin pipe of corner and catoptron, receives and passes to the second object lens, then received by receiving tube by after reflections off objects in returning the first object lens.Therefore, launching and receiving at an angle, such as an angle of 90 degrees, and common optical axis export, the camera lens (i.e. the first object lens) exported only needs one, namely only needs one and measures camera lens, make distance measuring equipment structure more simply compact, volume is less, and weight is lighter, and maintenance cost is low.And, by laser ranging mode, make measurement range wide, good stability, and launched by the very thin pipe guide laser of corner, emitting area is greatly reduced, and the area of the reception light be blocked when common optical axis exports reduces to minimum, thus allowing the loss of received energy reduce to minimum, measuring accuracy is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the laser ranging system that the single-lens common optical axis of the utility model embodiment exports.
Fig. 2 is laser instrument in Fig. 1 and the installation fine adjustment structural representation between PCB.
Fig. 3 is the structural representation of the laser ranging system that the single-lens common optical axis of another embodiment of the utility model exports.
Embodiment
Below with reference to specific embodiments and the drawings, the utility model is described in detail.
Refer to Fig. 1, the laser ranging system 10 that the single-lens common optical axis of the utility model embodiment exports is shown, it comprises Laser emission part and laser pick-off part, described laser emission section divides the LASER Discharge Tube 11 comprising and be arranged in order setting along optical axis, the very thin pipe 16 of corner and the first object lens 15, the very thin pipe 16 of described corner is on the corner provided with catoptron 161, to enter after laser is sent by LASER Discharge Tube 11 in the very thin pipe 16 of corner and to reflex to the first object lens 15 through catoptron 161, described laser pick-off part comprises described first object lens 15, with the second object lens 14 of the first object lens 15 common optical axis, laser pickoff 17, described first object lens 15, second object lens 14 and laser pickoff 17 are installed on a sleeve 12 successively along optical axis direction.
Particularly, the very thin pipe 16 of corner is preferably 90 degree of corners, and catoptron 161 preferably becomes the catoptron 161 of 45 degree with the first object lens primary optical axis.The very thin pipe 16 of corner comprises transverse pipe 161 and longitudinal pipe 163, and the central shaft of described transverse pipe 161 overlaps with the primary optical axis of the first object lens 15, the central shaft of described longitudinal pipe 163 and the transmitting optical axis coincidence of LASER Discharge Tube 11.The transmitting optical axis of LASER Discharge Tube 11 is vertical with the primary optical axis of the first object lens 15.Like this, the laser that LASER Discharge Tube 11 is launched is through longitudinal pipe 163, and reflected by catoptron 161 and penetrate along transverse pipe 161, the photocentre through the first object lens 15 is sent on object, then reflects.The photocentre of central axial alignment first object lens 15 of transverse pipe 161, laser does not change direction through photocentre, is convenient to adjustment direction of measurement, improves measuring accuracy.LASER Discharge Tube 11 is also preferably the very thin pipe of LASER Discharge Tube, and diameter is slightly larger than the very thin pipe 16 of corner.
Laser pickoff 17 has laser pick-off pipe 171, described sleeve 12 has the first end 121 of close thing side and the second end 122 away from thing side, described laser pick-off pipe 171 is assemblied in the second end 122 of described sleeve 12, described first object lens 15 are positioned at the first end 121 of sleeve 12, described laser pick-off pipe 171, second object lens 14 and the first object lens 15 common optical axis.The size of the first object lens 15 is greater than the second object lens 14, and the diameter of the first end 121 of sleeve 12 is greater than the second end 122.The first end 121 of sleeve 12 and the second end 122 correspondence have the first inner chamber 123 and the second inner chamber 124 communicated, described first object lens 15 are placed in the accent of the first inner chamber 123, the transverse pipe 162 of the very thin pipe 16 of described corner and catoptron 161 and part longitudinal pipe 163 are in the first inner chamber 123, another part longitudinal pipe 163 stretches out in the first inner chamber 123, namely stretches out in sleeve 12 and connects with sleeve pipe 19.The diameter of the first inner chamber 123 is greater than the diameter of the second inner chamber 124.Second inner chamber 124 is tubular conduit, and tubulose second inner chamber 124 of sleeve 12 is connected with laser pick-off pipe 171, and the second object lens 14 are positioned at the second inner chamber 124 and the first inner chamber 123 joint.First object lens 15 are preferably convergent lens, can be such as but be not limited to, half convex lens put down by convex lens or plano-convex lens or half, the echo light produced through measured object diffuse reflection is received by the first object lens 13, and described echo light is focused on, strengthen light signal, the second object lens 14 are preferably concavees lens, the first object lens 15 convergent laser is mainly used in reflect into directional light, to receive.
Further, the installation corner of described laser pick-off pipe 171 is respectively equipped with primary optic axis adjustment structure, for regulating the position of laser pick-off pipe 171 in the plane perpendicular to reception optical axis to regulate the position of two objective lens optical axis.Shown in figure, primary optic axis adjustment structure mainly regulates optical axis in position up and down.
The corner of LASER Discharge Tube 11 is respectively equipped with the second optical axis regulating structure, for regulating the position of the very thin pipe 16 of corner in the plane perpendicular to transmitting optical axis, make the optical axis alignment of catoptron 161 and the first object lens 15, by the photocentre of central axial alignment first object lens 15 of transverse pipe 161.
As shown in Figure 2, for the optical axis regulating structure of a jiao in the installation corner of laser pick-off pipe 171, laser pick-off pipe 171 (i.e. laser sensor) is installed on a pcb board 174 by installing plate 173, primary optic axis adjustment structure is that screw thread installs regulative mode, it comprises the through hole or screw 175,176 and securing member offered on pcb board 174 and installing plate 173 respectively, securing member comprises screw 178 and nut 179, certainly, also can establish screw mode at installing plate 173, not need nut.Through hole on pcb board 174 or screw 175 are greater than through hole on installing plate 173 or screw 176, like this, when needing the position up and down adjusting laser instrument, by loosening securing member, i.e. and the position of fine-tuning laser pick-off pipe 171.Similarly, LASER Discharge Tube 11 has installing plate, is installed on pcb board, be provided with through hole or screw 176 equally, connected by securing member, and the hole on pcb board is greater than the hole on installing plate, to finely tune the position of LASER Discharge Tube 11.
Further, laser pick-off pipe 171 is preferably the photoelectric receiving tubes such as APD or CCD, is provided with the first axial adjustment structure between the second end 122 of laser pick-off pipe 171 and described sleeve 12, for regulating the distance between laser pick-off pipe 171 and the second object lens 14.The very thin pipe 16 of corner is assemblied on a sleeve pipe 19, described sleeve pipe 19 is installed on the front end of emission of LASER Discharge Tube 11 with co-axial form, the second axial adjustment structure is provided with between the very thin pipe 16 of described corner and sleeve pipe 19, for regulating very thin pipe 16 position in the axial direction of corner, make the optical axis alignment of catoptron 161 and the first object lens 15, by the photocentre of central axial alignment first object lens 15 of transverse pipe 161.Further, the caliber of the very thin pipe 16 of corner is 5mm-6mm.
Particularly, first axial adjustment structure and the second axial adjustment structure can be threaded adjusting modes, such as, on the inside and outside wall of sleeve 12 and receiving tube 171, screw thread is set accordingly respectively, the inside and outside wall of sleeve pipe 19 and the very thin pipe 16 of corner arranges screw thread accordingly.First axial adjustment structure and the second axial adjustment structure can also be adopt projection and room or chute fit structure, such as, the inwall of sleeve 12 arranges room or chute, the outer wall of receiving tube 171 arranges multiple projection accordingly, similarly, the inwall of sleeve pipe 19 arranges room or chute, the inside and outside wall of the very thin pipe of corner 16 arranges multiple projection accordingly.By the first axial adjustment structure and the second axial adjustment structure, can focus by fore-and-aft direction.Primary optic axis adjustment structure and the second optical axis regulating structure also can be, but not limited to threaded adjusting mode, both with the use of.First axial adjustment structure and the second axial adjustment structure can fit applications, make laser ranging effect reach best.By above-mentioned each adjustment structure, more accurately can carry out various range finding when applying, usable range is extensive.
As shown in Figure 3, in another embodiment, further, be provided with the whole reflection deflecting mirror 18 of tilt adjustable at the light-emitting window of described first object lens 15, change predetermined angular to make range finding direction.Reflection deflecting mirror 18 is preferably 45 degree with the inclination angle of optical axis, namely reflects deflecting mirror 18 and comprises 45 degree of reflection deflecting mirrors, make light that 90 degree of transformations occur.Certainly, the inclination angle of reflection deflecting mirror 18 can arrange as required and regulate arbitrarily, and reflection deflecting mirror 18 is installed on an adjusting bracket, by the inclination angle of its adjustable reflection deflecting mirror 18.Like this, optical path is deflected, range finding direction is changed, such as, adopt 45 degree of reflection deflecting mirrors 18, make light that 90 degree of transformations occur.Structure is simple, and powerful, measurement range is more versatile and flexible.
During embody rule, first by LASER Discharge Tube 11 Emission Lasers, forward the first object lens 15 to through the very thin pipe 16 of corner and catoptron 161, receive by after reflections off objects in returning the first object lens 15 and pass to the second object lens, then being received by laser pick-off pipe 17.Therefore, launching and receiving at an angle, such as an angle of 90 degrees, and common optical axis export, the camera lens (i.e. the first object lens) exported only needs one, namely only needs one and measures camera lens, make distance measuring equipment structure more simply compact, volume is less, and weight is lighter, and maintenance cost is low.This device is also included in light-emitting window and adds reflection deflecting mirror 18 at any angle, and range finding direction is changed, and comprises and adds 45 degree of reflection deflecting mirrors, make light that 90 degree of transformations occur.In addition, due to the fast axial compression contracting of Emission Lasers band, by corner very thin pipe 16, emitting area is greatly reduced, blocked by the very thin pipe of corner 16 area receiving light when common optical axis exports and reduce to minimum, thus allow the loss of received energy reduce to minimum, thus, both accomplished that common optical axis exported and receives, do not affected precision of laser ranging again.By laser ranging mode, make measurement range wide, good stability, measuring accuracy is high.
It should be noted that; the utility model is not limited to above-mentioned embodiment; according to creative spirit of the present utility model; those skilled in the art can also make other changes; these changes done according to creative spirit of the present utility model, all should be included within the utility model scope required for protection.
Claims (10)
1. the laser ranging system of a single-lens common optical axis output, it comprises Laser emission part and laser pick-off part, it is characterized in that, described laser emission section divides the LASER Discharge Tube comprising and be arranged in order setting along optical axis, the very thin pipe of corner and the first object lens, the very thin pipe of described corner is on the corner provided with catoptron, to enter after laser is sent by LASER Discharge Tube in the very thin pipe of corner and to reflex to the first object lens through catoptron, described laser pick-off part comprises described first object lens, with the second object lens of the first object lens common optical axis, laser pickoff, described first object lens, second object lens and laser pickoff are installed on a sleeve successively along optical axis direction.
2. the laser ranging system that exports of single-lens common optical axis as claimed in claim 1, it is characterized in that, the very thin pipe of described corner is 90 degree of corners, and described catoptron becomes the catoptron of 45 degree.
3. the laser ranging system of single-lens common optical axis output as claimed in claim 2, it is characterized in that, the very thin pipe of described corner comprises transverse pipe and longitudinal pipe, the central shaft of described transverse pipe overlaps with the primary optical axis of the first object lens, the central shaft of described longitudinal pipe and the transmitting optical axis coincidence of LASER Discharge Tube.
4. the laser ranging system of single-lens common optical axis output as claimed in claim 1, it is characterized in that, the caliber of the very thin pipe of described corner is 5mm-6mm.
5. the laser ranging system of single-lens common optical axis output as claimed in claim 1, it is characterized in that, described laser pickoff has laser pick-off pipe, described sleeve has the first end of close thing side and the second end away from thing side, described laser pick-off pipe is assemblied in the second end of described sleeve, described first object lens are positioned at the first end of sleeve, described laser pick-off pipe, the second object lens and the first object lens common optical axis.
6. the laser ranging system of single-lens common optical axis output as claimed in claim 5, it is characterized in that, the first axial adjustment structure is provided with, for regulating the distance between laser pick-off pipe and the second object lens between described laser pick-off pipe and the second end of described sleeve.
7. the laser ranging system of single-lens common optical axis output as claimed in claim 6, it is characterized in that, the installation corner of described laser pick-off pipe is respectively equipped with primary optic axis adjustment structure, for regulating the position of laser pick-off pipe in the plane perpendicular to reception optical axis to regulate the position of two objective lens optical axis.
8. the laser ranging system of single-lens common optical axis output as claimed in claim 7, it is characterized in that, the very thin pipe of described corner is assemblied on a sleeve pipe, described sleeve pipe is installed on the front end of emission of LASER Discharge Tube with co-axial form, the second axial adjustment structure is provided with between the very thin pipe of described corner and sleeve pipe, for regulating the very thin pipe of corner position in the axial direction, make the optical axis alignment of catoptron and the first object lens.
9. the laser ranging system of single-lens common optical axis output as claimed in claim 8, it is characterized in that, the corner of described LASER Discharge Tube is respectively equipped with the second optical axis regulating structure, for regulating the very thin pipe of corner perpendicular to the position of launching in the plane of optical axis, make the optical axis alignment of catoptron and the first object lens.
10. the laser ranging system of single-lens common optical axis output as claimed in claim 1, is characterized in that, be provided with the whole reflection deflecting mirror of tilt adjustable at the light-emitting window of described first object lens, change predetermined angular to make range finding direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701620.8U CN205015479U (en) | 2015-09-08 | 2015-09-08 | Laser rangefinder of single -lens common optical axis output |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520701620.8U CN205015479U (en) | 2015-09-08 | 2015-09-08 | Laser rangefinder of single -lens common optical axis output |
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| CN205015479U true CN205015479U (en) | 2016-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093234A (en) * | 2015-09-08 | 2015-11-25 | 蒋柏娴 | Single-lens optical-axis-shared output laser distance measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093234A (en) * | 2015-09-08 | 2015-11-25 | 蒋柏娴 | Single-lens optical-axis-shared output laser distance measuring device |
| CN105093234B (en) * | 2015-09-08 | 2019-01-22 | 蒋柏娴 | The laser ranging system of single-lens common optical axis output |
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