CN1068418A - A kind of laser collimation device - Google Patents
A kind of laser collimation device Download PDFInfo
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- CN1068418A CN1068418A CN 91104447 CN91104447A CN1068418A CN 1068418 A CN1068418 A CN 1068418A CN 91104447 CN91104447 CN 91104447 CN 91104447 A CN91104447 A CN 91104447A CN 1068418 A CN1068418 A CN 1068418A
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- laser beam
- circular hole
- gimbals
- collimation device
- collimator
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Abstract
The invention discloses a kind of laser collimation device.This device can provide the perpendicular laser beam from trend zenith or the earth's core, but after pentaprism reflection the emission level laser beam, and can keep the benchmark of laser beam automatically.This device has been used for 405 meters high central TV Tower Structures construction, sunshine deformation observation and nearly 200 meters high capital mansion elevator mounting engineerings.Also can be used for underground workss such as vertical shaft, ventilation shaft, tunnel, subway, measuring accuracy and efficient all are better than conventional optical gauge.
Description
The present invention relates to 2 collimator apparatuses of a kind of collimated laser beam circular hole diffraction.ICL is attributable to＜GOI C 9/12 〉.
Fig. 2-28, Fig. 2-31 according to the 69th page to the 71st page of documents " application of laser in construction work " China Construction Industry Press version in 1984.Usually two-point diffraction collimation is before the diffracted wave band plate is close proximity to focusing telescope objective, along with collimator distance changes, changes the position of zone plate and mobile focusing lens.The shortcoming of this laser collimation system is the difficult processing of focus adjusting mechanism complexity, zone plate, cost height, introduce error of focusing, the operation distance for tens of meters to hectometer.Be not suitable for the continuous construction survey of towering structure.In addition, still do not have both can provide the laser beam of zenith direction or the earth's core direction both at home and abroad, can keep beam direction not to be subjected to the precision of vibration interference to reach 10 again automatically
-6Laser collimation device.
Task of the present invention is to provide a kind of new collimated laser beam circular hole diffraction 2 alignment methods, and a kind of comprising by laser tube＜1 〉, optical beam-expanding device＜2 〉, collimation tube＜10 〉, a magnetic damper＜7 〉, gimbals＜6 〉, housing＜8 〉, leveling support＜9 〉, circular hole diaphragm＜3〉forms, can launch the laser collimation device of collimated laser beam to zenith or the earth's core.
Task of the present invention is finished as follows, in conjunction with the accompanying drawings, is described in detail:
Fig. 1,2 colimated light system synoptic diagram of collimated laser beam circular hole diffraction
Fig. 2, zenith direction operation synoptic diagram
Fig. 3, the earth's core direction operation synoptic diagram
2 colimated light system light paths of collimated laser beam diffraction from circular aperture as shown in Figure 1. Form whole light path by laser instrument＜1 〉, collimation tube＜10 〉, optical beam-expanding device＜2 〉, circular hole diaphragm＜3〉and target＜4 〉. The laser beam that laser instrument＜1〉emission diameter is 1 millimeter, directly Optical beam-expanding device＜2〉expands, and becomes diameter greater than 50 millimeters collimated laser beam. Behind circular hole diaphragm＜3 〉, produce diffraction effect, on the target of 500 meters distances, form donut shape laser hot spot. Select the circular hole diaphragm＜3〉in suitable aperture, can obtain clearly concentric circles hot spot in the different distance target. Owing to do not focus, the luminous energy loss is little, and avoided error of focusing, improved service precision; The processing of circular hole diaphragm is simple, and price is low; Lacking of other zone plates of luminous energy loss ratio. Engineering is used and is shown that this method can obtain 10 in 500 meters-5～10
-6Certainty of measurement.
Parallel laser beam collimator＜5〉is made of optical beam-expanding device＜2〉collimation tube＜10 〉, laser instrument＜1 〉, corrector loop＜11 〉, adjusting screw＜12 〉, rubber "O"-ring.
Collimated laser beam circular hole diffraction collimator apparatus as shown in Figure 2.Form by parallel laser beam collimator＜5 〉, gimbals＜6 〉, magnetic damper＜7 〉, housing＜8 〉, leveling support＜9〉and Laser Power Devices.
Optical beam-expanding device＜2〉is threaded with collimation tube＜10 〉, forms parallel laser beam collimator＜5〉integral body.All there is measure-alike ring flange at its two ends.Any ring flange all can be connected with the damping fin screw of ring in the gimbals＜6〉or magnetic damper＜7 〉.Encircle in gimbals＜6〉and be connected with optical beam-expanding device＜2〉one ends, magnetic damper＜7〉damping fin and collimation tube＜10〉are when the other end is connected, and laser beam is launched to zenith direction, sees Fig. 2.When ring in the gimbals＜6〉was connected with collimation tube＜10〉one ends, laser beam was seen Fig. 3 to the emission of the earth's core direction.
At housing＜8〉top cover or the center window of going to the bottom, can select the circular hole diaphragm＜3〉in appropriate well footpath for use.
When light-emitting window added the right angle pentaprism, laser beam was reflected into horizontal light beam, and can keep level automatically.
Claims (5)
1, a kind of being different from by the focusing type optical system adds 2 diffraction collimator apparatuses that the Fresnel belt plate of complex structure is formed, adopt and expand the bundle collimated laser beam, go out the ring-like hot spot of concentric circles by circular hole diaphragm diffraction on target, realize 2 diffraction collimations, it is characterized in that non-focusing optical system, provide the collimated laser beam that range reaches 500 meters, the parallel laser beam diameter is greater than the circular hole aperture of the diaphragm.
2, a kind of laser collimation device that is used for claim 1 is made up of parallel laser beam collimator＜5 〉, gimbals＜6 〉, circular hole diaphragm＜3 〉.It is characterized in that parallel laser beam collimator＜5〉is hung by gimbals＜6 〉, realize self leveling, the magnetic damper＜7〉of housing＜8〉bottom makes the parallel laser beam collimator＜5〉that is subjected to disturbance static rapidly.
3, laser collimation device according to claim 2 is characterized in that all there is the through hole of wearing electric wire at the center of two pairs of minor axises of gimbals＜6 〉.
4, laser collimation device according to claim 2 is characterized in that all there is the band screw ring flange or the connecting thread that can be connected with ring in the gimbals＜6〉and magnetic damper＜7〉damping fin at parallel laser beam collimator＜5〉two ends.
5, laser collimation device according to claim 2 is characterized in that circular hole diaphragm＜3〉aperture is less than the parallel laser beam diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104447 CN1068418A (en) | 1991-07-09 | 1991-07-09 | A kind of laser collimation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104447 CN1068418A (en) | 1991-07-09 | 1991-07-09 | A kind of laser collimation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1068418A true CN1068418A (en) | 1993-01-27 |
Family
ID=4906629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91104447 Pending CN1068418A (en) | 1991-07-09 | 1991-07-09 | A kind of laser collimation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068418A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342209C (en) * | 2005-05-10 | 2007-10-10 | 北京航空航天大学 | Calibrating method for laser self-collimation angle measuring system |
| CN100342210C (en) * | 2005-05-10 | 2007-10-10 | 北京航空航天大学 | Laser self-collimation zero reference error angle measuring method |
| CN101005920B (en) * | 2004-08-24 | 2010-09-29 | 贝尔直升机泰克斯特龙公司 | Method and apparatus for locating and aligning fasteners |
| WO2012010961A1 (en) * | 2010-07-22 | 2012-01-26 | Amit Bhatnagar | Apparatus for determining optical density of liquid sample and optical waveguide thereof |
| CN103244849A (en) * | 2013-04-19 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | Light source device emitting collimating parallel light |
| CN105758392A (en) * | 2016-04-12 | 2016-07-13 | 天津市中土建筑工程技术发展有限公司 | Laser receiving target for changing light path of plumb instrument |
| CN108072336A (en) * | 2016-11-15 | 2018-05-25 | 三门核电有限公司 | Fuel manipulator crane extension sleeve total travel running orbit accurately detects and adjusting process |
-
1991
- 1991-07-09 CN CN 91104447 patent/CN1068418A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005920B (en) * | 2004-08-24 | 2010-09-29 | 贝尔直升机泰克斯特龙公司 | Method and apparatus for locating and aligning fasteners |
| CN100342209C (en) * | 2005-05-10 | 2007-10-10 | 北京航空航天大学 | Calibrating method for laser self-collimation angle measuring system |
| CN100342210C (en) * | 2005-05-10 | 2007-10-10 | 北京航空航天大学 | Laser self-collimation zero reference error angle measuring method |
| WO2012010961A1 (en) * | 2010-07-22 | 2012-01-26 | Amit Bhatnagar | Apparatus for determining optical density of liquid sample and optical waveguide thereof |
| CN103244849A (en) * | 2013-04-19 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | Light source device emitting collimating parallel light |
| CN105758392A (en) * | 2016-04-12 | 2016-07-13 | 天津市中土建筑工程技术发展有限公司 | Laser receiving target for changing light path of plumb instrument |
| CN108072336A (en) * | 2016-11-15 | 2018-05-25 | 三门核电有限公司 | Fuel manipulator crane extension sleeve total travel running orbit accurately detects and adjusting process |
| CN108072336B (en) * | 2016-11-15 | 2020-01-03 | 三门核电有限公司 | Accurate detection and adjustment process for full-stroke running track of telescopic sleeve of material loading and unloading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |