CN101872015B - Laser ranging device - Google Patents
Laser ranging device Download PDFInfo
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- CN101872015B CN101872015B CN 201010190855 CN201010190855A CN101872015B CN 101872015 B CN101872015 B CN 101872015B CN 201010190855 CN201010190855 CN 201010190855 CN 201010190855 A CN201010190855 A CN 201010190855A CN 101872015 B CN101872015 B CN 101872015B
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- port
- skewed slot
- sleeve
- mirror assembly
- accommodating cavity
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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 a kind of laser range finder that improves testing precision of regulating.
Background technology
Existing distance measuring method also comprises and utilizes winning post to cooperate apparatus measures except 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 the method labor intensive, in the measurement of longer distance, the method inconvenience and the larger error of easy generation.
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 return 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 Lasers 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 again to produce larger error, 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, so that the reflector laser the strongest non-reflector laser that the non-parallel light of laser or the stadimeter of the error of the stadimeter various degrees after the assembling such as existence emission receive etc., thereby affect stadimeter to the distance test result's of tester degree of accuracy, the test weak effect.
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, be provided with an accommodating cavity on the described main body, this accommodating cavity both ends open, be respectively the first port and the second port, in other the 3rd port that has been arranged side by side of the first port, be provided with a pair of the first skewed slot on the wall of this first port, 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 the first port, correspond to the first skewed slot on the first port, be provided with the first symmetrical pin on the outside surface of objective lens unit, this the first pin correspondence is snapped in the 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; Be provided with a pair of the 3rd skewed slot on the wall of the 3rd port; 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; be provided with the 3rd symmetrical pin on the outside surface of reception mirror assembly; 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 accommodating cavity middle part stretches out and is provided with approximately perpendicular to the axial connector of this accommodating cavity, on transmitter module suit and this connector.
As a kind of preferred version, described prism assemblies is arranged in the accommodating 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 accommodating cavity of main body and between prism assemblies and eyepiece component.
As a kind of preferred version, described transmitter module includes sleeve, transmitting focusing mirror 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, and this LASER Discharge Tube, barrel, transmitting focusing mirror assembly, shell fragment are relative with sleeve fixing, and with the sleeve synchronizing moving.
As a kind of preferred version, described LASER Discharge Tube is fixed on the barrel.
As a kind of preferred version, described transmitting focusing mirror assembly passes the other end opening of this sleeve and hangs on this sleeve, it is outer and be screwed with aforementioned barrel that the tail end of transmitting focusing mirror assembly is revealed in sleeve, this transmitting focusing mirror assembly can be on the port of this sleeve perpendicular to the XY planar movement of ray cast direction.
As a kind of preferred version, described shell fragment sandwiched and pushing tow are between barrel and sleeve, and barrel is in the trend of moving down always under the pushing tow of shell fragment, and the transmitting focusing mirror 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 be along the XY planar movement perpendicular to ray cast in the inboard of the 3rd port.
As a kind of preferred version; be provided with a pair of the second skewed slot on the wall of described the second port; 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 the second port; correspond to the second skewed slot on the second port; be provided with the second symmetrical pin on the outside surface of eyepiece component; this the second pin correspondence is snapped in the 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 obvious advantage and beneficial effect, particularly, and as shown from the above technical solution:
The first, change the displacement adjusting of objective lens unit so that the laser of launching is directional light by first pin that slides, changing the Adjustment of displacement 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 more accurately the distance of measured object, improve the degree of accuracy of its test.
The second, also can be by twisting that sleeve on the laser beam emitting device carries out to the transmitting focusing mirror assembly that displacement is regulated or by twisting barrel and to mobile regulate so that the laser launched be directional light of transmitting focusing mirror assembly in sleeve, realize to receive the strongest reflector laser by mobile adjustment the to receiving tube, improve the degree of accuracy of test with this.
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 is conducive to 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 diagram 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 diagram of the present invention's preferred embodiment.
The accompanying drawing identifier declaration:
1, main body 4, LCD show liquid crystal
11, accommodating cavity 5, eyepiece component
12, the first port 51, the second pin
121, the first skewed slot 6, reception mirror assembly
13, the second port 61, the 3rd pin
131, the second skewed slot 7, receiving tube
14, the 3rd port 8, transmitter module
141, the 3rd skewed slot 81, sleeve
15, connector 82, transmitting focusing mirror assembly
2, objective lens unit 83, shell fragment
21, the 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 an accommodating cavity 11 in this main body 1, these accommodating cavity 11 both ends opens are respectively the first port 12 and the second port one 3, and in the first port 12 other the 3rd port ones 4 that have been arranged side by side.This first port 12 is used for installation material mirror assembly 2, the second port ones 3 and receives mirror assembly 6 for eyepiece component 5, the three port ones 4 are installed for installing.Be provided with a pair of the first skewed slot 121 on the wall of this first port 12, these two first skewed slots, 121 curl trend are symmetrically distributed on the both sides of the first port 12 walls.Identical, being provided with a pair of the second skewed slot 131 on the wall of the second port one 3, these two second skewed slots, 131 curl trend are symmetrically distributed on the both sides of the second port one 3 walls.Be provided with a pair of the 3rd skewed slot 141 on the wall of the 3rd port one 4, these two the 3rd skewed slots, 141 curl trend are symmetrically distributed on the both sides of the 3rd port one 4 walls.These accommodating cavity 11 middle parts stretch out and are provided with approximately perpendicular to the axial connector 15 of this accommodating cavity 11, are provided with external thread on this connector 15.
This objective lens unit 2 is set in the first port 12; correspond to the first skewed slot 121 on the first port 12; be provided with the first symmetrical pin 21 on the outside surface of objective lens unit 2; these the first pin 21 correspondences are snapped in the 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 the second port one 3; correspond to the second skewed slot 131 on the second port one 3; be provided with the second symmetrical pin 51 on the outside surface of eyepiece component 5; these the second pin 51 correspondences are snapped in the 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 accommodating 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; be provided with the 3rd symmetrical pin 61 on the outside surface of reception mirror assembly 6; 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 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 be along the XY planar movement 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 according to test object first, can stir the second pin 51 along the track slip of the second skewed slot 131 so that eyepiece component 5 in the mobile generation of the Z-direction that is parallel to ray cast direction displacement, is made object being measured thereby focus; By stirring the first pin 21 along the track slip of the 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, then calculate distance, click switch again, LCD shows the distance that just can show object on the liquid crystal 4.
It needs to be noted, for so that the laser that emitter is launched is directional light, except above-mentioned the passing through displacement that the first pin 21 changes objective lens units 2 of sliding is regulated so that the laser of launching is the mode of directional light, also can realize by following dual mode: one, 81 pairs of transmitting focusing mirror assemblies of sleeve 82 of twisting on the laser beam emitting device carry out moving to regulate so that the laser of launching is directional light two along the Z-direction that is parallel to the ray cast direction, by twisting barrel 84 and transmitting focusing mirror assembly 82 XY planar movement perpendicular to the ray cast direction in sleeve 81 being regulated so that the laser of launching is directional light; Also have, for realizing receiving the strongest reflector laser, the Adjustment of displacement that rotates 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 the present embodiment, except 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 the transmitting focusing mirror assembly that displacement is regulated or by twisting barrel and to mobile regulate so that the laser launched be directional light of transmitting focusing mirror assembly in sleeve; Realize to receive the strongest reflector laser by the Adjustment of displacement on the 3rd pin change reception mirror assembly that slides or by mobile adjustment the to receiving tube, this laser range finder is with respect to traditional laser range finder, can measure more accurately the distance of measured object, improve the degree of accuracy of its test.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 is conducive to 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, therefore 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 does.
Claims (6)
1. laser range finder, the objective lens unit, prism assemblies, the LCD that include main body and be arranged on the main body show liquid crystal, eyepiece component, reception mirror assembly, receiving tube and transmitter module, it is characterized in that: be provided with an accommodating cavity on the described main body, this accommodating cavity middle part stretches out and is provided with approximately perpendicular to the axial connector of this accommodating cavity, on aforementioned transmitter module suit and this connector, aforementioned prism assemblies be arranged at main body along in the accommodating cavity and be positioned at the connector place;
This accommodating cavity both ends open is respectively the first port and the second port, in other the 3rd port that has been arranged side by side of the first port;
Be provided with a pair of the first skewed slot on the wall of this first port, 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 the first port, correspond to the first skewed slot on the first port, be provided with the first symmetrical pin on the outside surface of objective lens unit, this the first pin correspondence is snapped in the first skewed slot, and stretch out outside the wall of port, this first pin can slide and drive objective lens unit along the track of skewed slot and move along the Z-direction that is parallel to along the ray cast direction of accommodating cavity;
Be provided with a pair of the second skewed slot on the wall of this second port, 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 the second port, correspond to the second skewed slot on the second port, be provided with the second symmetrical pin on the outside surface of eyepiece component, this the second pin correspondence is snapped in the second skewed slot, and stretch out outside the wall of port, this second pin can slide and drive eyepiece component along the track of skewed slot and move along the Z-direction that is parallel to along the ray cast direction of accommodating cavity;
Be provided with a pair of the 3rd skewed slot on the wall of the 3rd port, 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, be provided with the 3rd symmetrical pin on the outside surface of reception mirror assembly, the 3rd pin correspondence is snapped in the 3rd skewed slot, and stretch out outside the wall of port, the 3rd pin can slide and drive along the track of skewed slot and receive mirror assembly and move along the Z-direction that is parallel to along the ray cast direction of accommodating cavity;
And aforementioned LCD shows that liquid crystal is arranged in the accommodating cavity of main body and between prism assemblies and eyepiece component.
2. laser range finder according to claim 1, it is characterized in that: described transmitter module includes sleeve, transmitting focusing mirror 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, and this LASER Discharge Tube, barrel, transmitting focusing mirror assembly, shell fragment are relative with sleeve fixing, and with the sleeve synchronizing moving.
3. laser range finder according to claim 2, it is characterized in that: described LASER Discharge Tube is fixed on the barrel.
4. laser range finder according to claim 3, it is characterized in that: described transmitting focusing mirror assembly passes the other end opening of this sleeve and hangs on this sleeve, it is outer and be screwed with aforementioned barrel that the tail end of transmitting focusing mirror assembly is revealed in sleeve, this transmitting focusing mirror assembly can be on the port of this sleeve perpendicular to the XY planar movement along the ray cast direction of connector.
5. laser range finder according to claim 4, it is characterized in that: described shell fragment sandwiched and pushing tow are between barrel and sleeve, barrel is in the trend of moving down always under the pushing tow of shell fragment, the transmitting focusing mirror assembly is being close on the port of sleeve under the pushing tow of shell fragment.
6. laser range finder according to claim 1, it is characterized in that: described receiving tube is installed in the inboard of the 3rd port, and this receiving tube can be along perpendicular to the XY planar movement along the ray cast direction of accommodating cavity in the inboard of the 3rd port.
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 CN101872015A (en) | 2010-10-27 |
| CN101872015B true CN101872015B (en) | 2013-01-09 |
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| 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 |
|---|---|
| CN (1) | CN101872015B (en) |
Families Citing this family (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 |
| CN106154249B (en) * | 2015-04-21 | 2019-05-17 | 信泰光学(深圳)有限公司 | Laser ruler calibration system |
| CN105527626B (en) * | 2015-12-02 | 2017-08-25 | 四川红光汽车机电有限公司 | A kind of laser ranging system |
Citations (3)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100026284A (en) * | 2008-08-29 | 2010-03-10 | 엘지이노텍 주식회사 | 3d lrf sensor : three dimensions laser range finder sensor |
-
2010
- 2010-05-28 CN CN 201010190855 patent/CN101872015B/en not_active Expired - Fee Related
Patent Citations (3)
| 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 |
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| Publication number | Publication date |
|---|---|
| CN101872015A (en) | 2010-10-27 |
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Owner name: JUNENG OUTDOOR GOODS TECHNOLOGY SERVICE (SHENZHEN) Free format text: FORMER OWNER: SOUTHSTAR ELECTRONICS LIMITED Effective date: 20120420 |
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