CN101872015A - Laser ranging device - Google Patents
Laser ranging device Download PDFInfo
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- CN101872015A CN101872015A CN 201010190855 CN201010190855A CN101872015A CN 101872015 A CN101872015 A CN 101872015A CN 201010190855 CN201010190855 CN 201010190855 CN 201010190855 A CN201010190855 A CN 201010190855A CN 101872015 A CN101872015 A CN 101872015A
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- port
- skewed slot
- sleeve
- pin
- range finder
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Abstract
The invention discloses a laser ranging device, comprising a body and an object lens assembly, a prism assembly, an eye lens assembly, a receiving lens assembly and an emission module which are arranged on the body, wherein the body is provided with a first port, a second port and a third port; the wall surfaces of the first port and the third port are respectively provided with a first skewed slot and a third skewed slot; the object lens assembly is sleeved in the first port; a first dowel on the outer surface of the object lens assembly is correspondingly buckled in the first skewed slot and stretches out of the wall surfaces of the ports; the receiving lens assembly is sleeved in the third port; a third dowel on the outer surface of the receiving lens assembly is buckled in the third skewed slot and stretches out of the wall surfaces of the ports; the emitted laser becomes parallel light by sliding the first dowel to change and adjust the displacement of the object lens assembly; the strongest reflected laser is received by sliding the third dowel to change and adjust the displacement of the receiving lens assembly, thus more accurately measuring the distance of the measured objects and improving the ranging accuracy.
Description
Technical field
The present invention relates to the stadimeter art, refer in particular to the laser range finder that a kind of scalable improves testing precision.
Background technology
Existing distance measuring method also comprises and utilizes winning post to cooperate apparatus measures except that utilizing the direct measurement of chi tool, extrapolates the method for distance by calculating its corresponding angle.But, the shortcoming that has length limited because of the chi tool, so the chi general laws is not suitable for the measurement of long distance, utilize winning post to cooperate apparatus measures, its shortcoming is to need a people to plug winning post, and another people controls instrument, so this method labor intensive, in the measurement of longer distance, this method is inconvenient and be easy to generate bigger error.
In recent years, laser ranging method is widely used in the measurement of distance, and laser range finder also becomes the important tool of range observation, its principle is by a generating laser object to be launched a pulse signal, again by a low noise, high sensitive laser pickoff receives the signal that is reflected by this object, utilize this reflected signal that receives to calculate the distance of object, its principle can be by formula: L=Td*C/2 represents, wherein, L is the distance of object to be measured, Td is transponder pulse signal and received pulse signal time delay between the two, C is the light velocity of propagation, only need measure Td time delay, then the distance L of object to be measured can obtain.Produce laser range finder according to this principle, include telescopic system, emitter and receiving device, people only need by telescopic system measured object to be focused, press the switch emission laser on the laser range finder, click switch again and be convenient to show in the telescopic system distance of tested thing, this method of testing is easy to use, and has both reduced the manpower consumption, simultaneously be not easy to produce bigger error again, favored by the user.
Yet, each assembly in the existing laser range finder all is that the division of labor is produced, the error that produces during production is inevitable, error such as the reflector laser the strongest non-reflector laser that exists non-parallel light of emitted laser or stadimeter to receive of the stadimeter various degrees after the feasible assembling etc., thereby influence the degree of accuracy of stadimeter, the test weak effect to the distance test result of tester.
Summary of the invention
The present invention is directed to the disappearance of prior art existence, its fundamental purpose provides a kind of laser range finder, has higher degree of accuracy, the characteristics of good test effect.
For achieving the above object, the present invention adopts following technical scheme:
A kind of laser range finder, include main body and be arranged at objective lens unit on the main body, prism assemblies, LCD shows liquid crystal, eyepiece component, receive mirror assembly, receiving tube and transmitter module, described main body is provided with a containing cavity, this containing cavity both ends open, be respectively first port and second port, in other the 3rd port that has been arranged side by side of first port, the wall of this first port is provided with a pair of first skewed slot, this two first skewed slot curls trend is symmetrically distributed on the both sides of the first port wall, objective lens unit is set in first port, correspond to first skewed slot on first port, the outside surface of objective lens unit is provided with first pin of symmetrical distribution, this first pin correspondence is snapped in first skewed slot, and stretch out outside the wall of port, this first pin can slide along the track of skewed slot and drive objective lens unit and move along the Z-direction that is parallel to the ray cast direction; The wall of the 3rd port is provided with a pair of the 3rd skewed slot; this two the 3rd skewed slot curls trend is symmetrically distributed on the both sides of the 3rd port wall; receiving mirror assembly is set in the 3rd above-mentioned port; correspond to the 3rd skewed slot on the 3rd port; the outside surface that receives mirror assembly is provided with the 3rd pin of symmetrical distribution; the 3rd pin correspondence is snapped in the 3rd skewed slot; and stretch out outside the wall of port, the 3rd pin can slide along the track of skewed slot and drive the reception mirror assembly and move along the Z-direction that is parallel to the ray cast direction.
As a kind of preferred version, described containing cavity middle part stretches out and is provided with approximately perpendicular to the axial connector of this containing cavity, on transmitter module suit and this connector.
As a kind of preferred version, described prism assemblies is arranged in the containing cavity of main body and is positioned at the connector place.
As a kind of preferred version, described LCD shows that liquid crystal is arranged in the containing cavity of main body and between prism assemblies and eyepiece component.
As a kind of preferred version, described transmitter module includes sleeve, emission focus lamp assembly, shell fragment, barrel and LASER Discharge Tube, this sleeve both ends open, one end opening screw connecting sheath of sleeve is loaded on described connector, during turnbarrel, this sleeve can move along the Z-direction of parallel rays projecting direction on the connector, this LASER Discharge Tube, barrel, emission focus lamp assembly, shell fragment and sleeve relative fixed, and with the same moved further of sleeve.
As a kind of preferred version, described LASER Discharge Tube is fixed on the barrel.
As a kind of preferred version, described emission focus lamp assembly passes the other end opening of this sleeve and hangs on this sleeve, the tail end of emission focus lamp assembly is revealed in outside the sleeve and with aforementioned barrel and is screwed, and this emission focus lamp assembly can move on the XY plane perpendicular to the ray cast direction on the port of this sleeve.
As a kind of preferred version, described Spring sheet clip establish and pushing tow between barrel and sleeve, barrel is in the trend of moving down always under the pushing tow of shell fragment, emission focus lamp assembly is being close on the port of sleeve under the pushing tow of shell fragment.
As a kind of preferred version, described receiving tube is installed in the inboard of the 3rd port, and this receiver pope can move along the XY plane perpendicular to ray cast in the inboard of the 3rd port.
As a kind of preferred version; the wall of described second port is provided with a pair of second skewed slot; this two second skewed slot curls trend is symmetrically distributed on the both sides of the second port wall; this eyepiece component is set in second port; correspond to second skewed slot on second port; the outside surface of eyepiece component is provided with second pin of symmetrical distribution; this second pin correspondence is snapped in second skewed slot; and stretch out outside the wall of port, this second pin can slide along the track of skewed slot and drive eyepiece component and move along the Z-direction that is parallel to the ray cast direction.
The present invention compared with prior art has tangible advantage and beneficial effect, particularly, and as shown from the above technical solution:
The first, regulating the feasible laser of launching by the displacement of first pin change objective lens unit that slides is directional light, changing the displacement adjustment that receives on the mirror assembly by the 3rd pin that slides realizes receiving the strongest reflector laser, this laser range finder is with respect to traditional laser range finder, can measure the distance of measured object more accurately, improve its test accuracy.
The second, also can be by twisting that sleeve on the laser beam emitting device carries out to emission focus lamp assembly that displacement is regulated or by twisting barrel and the mobile adjusting in sleeve makes that the laser of launching is directional light to emission focus lamp assembly, realize to receive the strongest reflector laser by mobile adjustment, improve test accuracy with this to receiving tube.
Three, except prism assemblies, LCD shows that all the other optical modules are plastic material outside the liquid crystal, replaces the glass material that tradition adopts, and reduces production costs, and helps market competition.
For more clearly setting forth architectural feature of the present invention and effect, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:
Description of drawings
Fig. 1 is the three-dimensional diagrammatic sketch of the present invention's preferred embodiment;
Fig. 2 is the exploded view of the present invention's preferred embodiment;
Fig. 3 is the section diagrammatic sketch of the present invention's preferred embodiment.
The accompanying drawing identifier declaration:
1, main body 4, LCD show liquid crystal
11, containing cavity 5, eyepiece component
12, first port 51, second pin
121, first skewed slot 6, reception mirror assembly
13, second port 61, the 3rd pin
131, second skewed slot 7, receiving tube
14, the 3rd port 8, transmitter module
141, the 3rd skewed slot 81, sleeve
15, connector 82, emission focus lamp assembly
2, objective lens unit 83, shell fragment
21, first pin 84, barrel
3, prism assemblies 85, LASER Discharge Tube
Embodiment:
Referring to figs. 1 through shown in Figure 3, the concrete structure that it has demonstrated the present invention's preferred embodiment includes main body 1 and is arranged at objective lens unit 2 on the main body 1, prism assemblies 3, LCD and shows liquid crystal 4, eyepiece component 5, receives mirror assembly 6, receiving tube 7 and transmitter module 8.
Particularly, wherein, be provided with a containing cavity 11 in this main body 1, these containing cavity 11 both ends opens are respectively first port one 2 and second port one 3, and in first port one, 2 other the 3rd port ones 4 that have been arranged side by side.This first port one 2 is used for installation material mirror assembly 2, the second port ones 3 and is used to install eyepiece component 5, the three port ones 4 and is used for install receiving mirror assembly 6.Wall in this first port one 2 is provided with a pair of first skewed slot 121, and these two first skewed slots, 121 curl trend are symmetrically distributed on the both sides of first port one, 2 walls.Identical, the wall of second port one 3 is provided with a pair of second skewed slot 131, and these two second skewed slots, 131 curl trend are symmetrically distributed on the both sides of second port one, 3 walls.The wall of the 3rd port one 4 is provided with a pair of the 3rd skewed slot 141, and these two the 3rd skewed slots, 141 curl trend are symmetrically distributed on the both sides of the 3rd port one 4 walls.These containing cavity 11 middle parts stretch out and are provided with approximately perpendicular to the axial connector 15 of this containing cavity 11, and this connector 15 is provided with external thread.
This objective lens unit 2 is set in first port one 2; correspond to first skewed slot 121 on first port one 2; the outside surface of objective lens unit 2 is provided with first pin 21 of symmetrical distribution; these first pin, 21 correspondences are snapped in first skewed slot 121; and stretch out outside the wall of port, this first pin 21 can slide along the track of skewed slot and drive objective lens unit 2 and move along the Z-direction that is parallel to the ray cast direction.
This eyepiece component 5 is set in second port one 3; correspond to second skewed slot 131 on second port one 3; the outside surface of eyepiece component 5 is provided with second pin 51 of symmetrical distribution; these second pin, 51 correspondences are snapped in second skewed slot 131; and stretch out outside the wall of port, this second pin 51 can slide along the track of skewed slot and drive eyepiece component 5 and move along the Z-direction that is parallel to the ray cast direction.
This prism assemblies 3 is arranged in the containing cavity 11 of main body 1, and is positioned at connector 15 places, and this prism assemblies 3 is transmitted into laser beam on it with this and reflexes on the objective lens unit 2 and launch.
This LCD shows that liquid crystal 4 is between prism assemblies 3 and eyepiece component 5.
This LCD shows that liquid crystal 4, objective lens unit 2, prism assemblies 3 and eyepiece component 5 common combinations form telescopic system.
This reception mirror assembly 6 is set in the 3rd above-mentioned port one 4; correspond to the 3rd skewed slot 141 on the 3rd port one 4; the outside surface that receives mirror assembly 6 is provided with the 3rd pin 61 of symmetrical distribution; the 3rd pin 61 correspondences are snapped in the 3rd skewed slot 141; and stretch out outside the wall of port, the Z-direction that the 3rd pin 61 can be parallel to the ray cast direction along the track slip and drive reception mirror assembly 6 edges of skewed slot moves.This receiving tube 7 is installed in the inboard of the 3rd port one 4, and this receiver pope can move along the XY plane perpendicular to the ray cast direction in the inboard of the 3rd port one 4, this receiving tube 7 and the reception mirror assembly 6 common laser receiver systems that form.
When the test distant objects, can before test, adjust stadimeter earlier according to test object, can stir second pin 51 slides along the track of second skewed slot 131 and makes eyepiece component 5 move on the Z-direction that is parallel to the ray cast direction to produce displacement, make the object of surveying thereby focus; By stirring the track slip of first pin 21 along first skewed slot 121, with the displacement of instrumentality mirror assembly 2 on the Z-direction that is parallel to the ray cast direction, making the laser of launching is directional light; Adjust the displacement of reception mirror assembly 6 on the Z-direction that is parallel to the ray cast direction by stirring the 3rd pin 61 along the track slip of the 3rd skewed slot 141, to realize to receive the strongest reflector laser.During range finding, click the switch on the main body 1, choice box appears on the LCD demonstration liquid crystal 4, choice box is aimed at testee, and the parallel laser of launching through emitter is got to testee back reflection return (this reflector laser is far away because of measured object, is approximately directional light), after receiving mirror assembly 6, reach receiving tube 7, calculate distance then, click switch again, LCD shows the distance that just can show object on the liquid crystal 4.
It needs to be noted, for the laser that makes emitter launch is directional light, except that slide displacement that first pin 21 changes objective lens units 2 of above-mentioned passing through is regulated and is made that the laser of launching is the mode of directional light, also can realize: one by following dual mode, twisting 81 pairs in sleeve emission focus lamp assembly 82 on the laser beam emitting device carries out moving to regulate along the Z-direction that is parallel to the ray cast direction making that the laser of launching is directional light, two, make that by twisting barrel 84 and emission focus lamp assembly 82 is moved adjusting perpendicular to the XY plane of ray cast direction in sleeve 81 laser of launching is directional light; Also have, for realizing receiving the strongest reflector laser, the displacement adjustment of rotating on the 3rd pin 61 change reception mirror assemblies 6 except above-mentioned passing through receives the mode of the strongest reflector laser with realization, also can realize receiving the strongest reflector laser by the mobile adjustment mode to receiving tube 7; Simultaneously, in present embodiment, remove prism assemblies 3, LCD shows that all the other optical modules are plastic material outside the liquid crystal 4.
Design focal point of the present invention is: the first, and the displacement that changes objective lens unit by first pin that slides is regulated or by twisting that sleeve on the laser beam emitting device carries out to emission focus lamp assembly that displacement is regulated or by twisting barrel and the mobile adjusting in sleeve makes that the laser of launching is directional light to emission focus lamp assembly; Realize to receive the strongest reflector laser by the displacement adjustment on the 3rd pin change reception mirror assembly that slides or by mobile adjustment to receiving tube, this laser range finder is with respect to traditional laser range finder, can measure the distance of measured object more accurately, improve its test accuracy.The second, except prism assemblies, LCD shows that all the other optical modules are plastic material outside the liquid crystal, replaces the glass material that tradition adopts, and reduces production costs, and helps market competition.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. laser range finder, include main body and be arranged at objective lens unit on the main body, prism assemblies, LCD shows liquid crystal, eyepiece component, receive mirror assembly, receiving tube and transmitter module, it is characterized in that: described main body is provided with a containing cavity, this containing cavity both ends open, be respectively first port and second port, in other the 3rd port that has been arranged side by side of first port, the wall of this first port is provided with a pair of first skewed slot, this two first skewed slot curls trend is symmetrically distributed on the both sides of the first port wall, objective lens unit is set in first port, correspond to first skewed slot on first port, the outside surface of objective lens unit is provided with first pin of symmetrical distribution, this first pin correspondence is snapped in first skewed slot, and stretch out outside the wall of port, this first pin can slide along the track of skewed slot and drive objective lens unit and move along the Z-direction that is parallel to the ray cast direction; The wall of the 3rd port is provided with a pair of the 3rd skewed slot; this two the 3rd skewed slot curls trend is symmetrically distributed on the both sides of the 3rd port wall; receiving mirror assembly is set in the 3rd above-mentioned port; correspond to the 3rd skewed slot on the 3rd port; the outside surface that receives mirror assembly is provided with the 3rd pin of symmetrical distribution; the 3rd pin correspondence is snapped in the 3rd skewed slot; and stretch out outside the wall of port, the 3rd pin can slide along the track of skewed slot and drive the reception mirror assembly and move along the Z-direction that is parallel to the ray cast direction.
2. laser range finder according to claim 1 is characterized in that: described containing cavity middle part stretches out and is provided with approximately perpendicular to the axial connector of this containing cavity, on transmitter module suit and this connector.
3. laser range finder according to claim 2 is characterized in that: described prism assemblies is arranged in the containing cavity of main body and is positioned at the connector place.
4. laser range finder according to claim 3 is characterized in that: described LCD shows that liquid crystal is arranged in the containing cavity of main body and between prism assemblies and eyepiece component.
5. laser range finder according to claim 2, it is characterized in that: described transmitter module includes sleeve, emission focus lamp assembly, shell fragment, barrel and LASER Discharge Tube, this sleeve both ends open, one end opening screw connecting sheath of sleeve is loaded on described connector, during turnbarrel, this sleeve can move along the Z-direction of parallel rays projecting direction on the connector, this LASER Discharge Tube, barrel, emission focus lamp assembly, shell fragment and sleeve relative fixed, and with the same moved further of sleeve.
6. laser range finder according to claim 5 is characterized in that: described LASER Discharge Tube is fixed on the barrel.
7. laser range finder according to claim 5, it is characterized in that: described emission focus lamp assembly passes the other end opening of this sleeve and hangs on this sleeve, the tail end of emission focus lamp assembly is revealed in outside the sleeve and with aforementioned barrel and is screwed, and this emission focus lamp assembly can move on the XY plane perpendicular to the ray cast direction on the port of this sleeve.
8. laser range finder according to claim 7, it is characterized in that: described Spring sheet clip establish and pushing tow between barrel and sleeve, barrel is in the trend of moving down always under the pushing tow of shell fragment, emission focus lamp assembly is being close on the port of sleeve under the pushing tow of shell fragment.
9. laser range finder according to claim 1 is characterized in that: described receiving tube is installed in the inboard of the 3rd port, and this receiver pope can move along the XY plane perpendicular to ray cast in the inboard of the 3rd port.
10. laser range finder according to claim 1; it is characterized in that: the wall of described second port is provided with a pair of second skewed slot; this two second skewed slot curls trend is symmetrically distributed on the both sides of the second port wall; this eyepiece component is set in second port; correspond to second skewed slot on second port; the outside surface of eyepiece component is provided with second pin of symmetrical distribution; this second pin correspondence is snapped in second skewed slot; and stretch out outside the wall of port, this second pin can slide along the track of skewed slot and drive eyepiece component and move along the Z-direction that is parallel to the ray cast direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190855 CN101872015B (en) | 2010-05-28 | 2010-05-28 | Laser ranging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190855 CN101872015B (en) | 2010-05-28 | 2010-05-28 | Laser ranging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101872015A true CN101872015A (en) | 2010-10-27 |
| CN101872015B CN101872015B (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010190855 Expired - Fee Related CN101872015B (en) | 2010-05-28 | 2010-05-28 | Laser ranging device |
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| Country | Link |
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| CN (1) | CN101872015B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597437A (en) * | 2015-02-03 | 2015-05-06 | 金华马卡科技有限公司 | Handheld type distance measuring instrument |
| CN105527626A (en) * | 2015-12-02 | 2016-04-27 | 四川红光汽车机电有限公司 | Laser ranging device |
| CN106154249A (en) * | 2015-04-21 | 2016-11-23 | 信泰光学(深圳)有限公司 | Laser ruler calibration system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002267442A (en) * | 2001-03-07 | 2002-09-18 | Sokkia Co Ltd | Semiconductor laser distance measuring apparatus |
| WO2003081173A1 (en) * | 2002-03-26 | 2003-10-02 | Robert Bosch Gmbh | Device and accessory |
| CN201096884Y (en) * | 2007-09-04 | 2008-08-06 | 上海宝钢设备检修有限公司 | An installation rack for adjustable laser distance measuring instrument |
| US20100053595A1 (en) * | 2008-08-29 | 2010-03-04 | Kap Jin Lee | Three dimensional laser range finder sensor |
-
2010
- 2010-05-28 CN CN 201010190855 patent/CN101872015B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002267442A (en) * | 2001-03-07 | 2002-09-18 | Sokkia Co Ltd | Semiconductor laser distance measuring apparatus |
| WO2003081173A1 (en) * | 2002-03-26 | 2003-10-02 | Robert Bosch Gmbh | Device and accessory |
| CN201096884Y (en) * | 2007-09-04 | 2008-08-06 | 上海宝钢设备检修有限公司 | An installation rack for adjustable laser distance measuring instrument |
| US20100053595A1 (en) * | 2008-08-29 | 2010-03-04 | Kap Jin Lee | Three dimensional laser range finder sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597437A (en) * | 2015-02-03 | 2015-05-06 | 金华马卡科技有限公司 | Handheld type distance measuring instrument |
| WO2016123878A1 (en) * | 2015-02-03 | 2016-08-11 | 金华马卡科技有限公司 | Handheld rangefinder |
| CN106154249A (en) * | 2015-04-21 | 2016-11-23 | 信泰光学(深圳)有限公司 | Laser ruler calibration system |
| CN105527626A (en) * | 2015-12-02 | 2016-04-27 | 四川红光汽车机电有限公司 | Laser ranging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101872015B (en) | 2013-01-09 |
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