CN109521573A - The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment - Google Patents
The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment Download PDFInfo
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- CN109521573A CN109521573A CN201910002618.4A CN201910002618A CN109521573A CN 109521573 A CN109521573 A CN 109521573A CN 201910002618 A CN201910002618 A CN 201910002618A CN 109521573 A CN109521573 A CN 109521573A
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- China
- Prior art keywords
- laser
- covering
- cylindrical lens
- linear laser
- hot spot
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0966—Cylindrical lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention provides the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment, make laser covering of the fan secondary by the measurement accuracy that makes laser rays become uniformly to improve Laser Scanning Equipment after optical element.Optical element is placed between laser covering of the fan and measured object, optical module and the laser covering of the fan are coaxially arranged, laser all passes through optical element, the optical element is scanned for single laser covering of the fan to be decomposed into after two independent second laser covering of the fans towards measured object, and the hot spot of two independent second laser covering of the fans partially overlaps, so that laser rays becomes uniform.
Description
Technical field
The present invention relates to the technical fields of the even light of laser, specially the linear laser light of 3d linear laser scanning survey equipment
Spot longitudinal light method.
Background technique
3d linear laser scanning survey equipment, does linear shaping with the method for single cylindrical lens, although this design and system
Make simply, but have obvious deficiency in 3d linear laser scanning survey equipment: when simple lens does linear laser shaping, hot spot is obvious
Unevenly, longitudinal Energy distribution of laser is as shown in Figure 1, make the measurement accuracy of laser scanning measurement equipment low.
Summary of the invention
In view of the above-mentioned problems, the present invention provides the linear laser hot spot longitudinal light of 3d linear laser scanning survey equipment
Method makes laser covering of the fan secondary by making laser rays become uniformly, to improve Laser Scanning Equipment after optical element
Measurement accuracy.
The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment, it is characterised in that: in fan of laser light
Optical element is placed between face and measured object, optical module and the laser covering of the fan are coaxially arranged, and laser all passes through optics member
Part, the optical element are used to after single laser covering of the fan to be decomposed into two independent second laser covering of the fans carry out towards measured object
Scanning, and the hot spot of two independent second laser covering of the fans partially overlaps, so that laser rays becomes uniform.
It is further characterized by: the optical element is specifically put together by two cylindrical lens, and two cylindrical lens are opposite
It is arranged in split positional symmetry, the source direction of flat face towards the laser of each cylindrical lens is arranged, each cylindrical lens
Bottom convex surface is towards lower arrangement；
The whole region of the face domain covering laser covering of the fan of two cylindrical lens, two cylindrical lens are by single fan of laser light
Face is decomposed into directive measured object after two independent second laser covering of the fans, the hot spot of measured object two independent second laser covering of the fans
Side adjacent to each other partially overlap and form one section on platform effectively using length, measured object is placed in effective use
On platform in length；
The phase split end face of two cylindrical lens is truncation surface, and the section end of two cylindrical lens is glued mutually to be formed
The coplanar arrangement of median plane of integral piece, the split end face and laser covering of the fan, it is ensured that the even results of hot spot；
The split end face of two cylindrical lens is inner end, and the equal from-inner-to-outer of the flat face of the cylindrical lens tilts cloth upwards
It sets；
The angulation that the central axis of two cylindrical lens is formed by after split is 14.5 °；
The tie point of the central axis of two cylindrical lens is the starting launch point of laser covering of the fan.
After adopting the above technical scheme, original uneven laser rays changed into using optical element equal in effective length
Even laser rays makes laser covering of the fan secondary by making laser rays become uniformly, to improve laser scanning after optical element
The measurement accuracy of equipment.
Detailed description of the invention
Fig. 1 is that the method for single cylindrical lens does longitudinal energy profile of linear shaping；
Fig. 2 is longitudinal energy profile corresponding to structure of the invention；
Fig. 3 is the enlarged structure schematic diagram of optical element；
Fig. 4 is light path principle figure of the invention；
Structure title corresponding to serial number is as follows in figure:
Laser covering of the fan 1, optical element 2, second laser covering of the fan 3, cylindrical lens 4, flat face 41, bottom convex surface 42, truncation surface
43, length 5 is effectively used.
Specific embodiment
The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment, is shown in Fig. 2-Fig. 4: in laser covering of the fan
Optical element 2 is placed between 1 and measured object, optical module 2 and laser covering of the fan 1 are coaxially arranged, and laser all passes through optical element
2, optical element 2 is swept for single laser covering of the fan to be decomposed into after two independent second laser covering of the fans 3 towards measured object
It retouches, and the hot spot of two independent second laser covering of the fans 3 partially overlaps, so that laser rays becomes uniform.
Optical element 2 is specifically put together by two cylindrical lens 4, and two cylindrical lens 4 are arranged relative to split positional symmetry,
The source direction of the flat face 41 of each cylindrical lens 4 towards laser arranges, the bottom convex surfaces 42 of each cylindrical lens 4 is towards lower cloth
It sets；
The whole region of the face domain covering laser covering of the fan 1 of two cylindrical lens 4, two cylindrical lens 4 divide single laser covering of the fan 1
Solution is directive measured object after two independent second laser covering of the fans 3, the hot spot of measured object two independent second laser covering of the fans
Partially overlapping and forming one section on platform effectively using length 5 for side adjacent to each other, measured object is placed in effectively using length
On platform in degree 5；
The phase split end face of two cylindrical lens 4 is truncation surface 43, and the section end 43 of two cylindrical lens 4 is glued mutually to form one
Body part, the coplanar arrangement of the median plane of split end face and laser covering of the fan 1, it is ensured that the even results of hot spot；
The split end face of two cylindrical lens 4 is inner end, and the equal from-inner-to-outer of flat face 41 of cylindrical lens 4 is in tilted layout upwards.
The angulation α that the central axis of two cylindrical lens is formed by specific embodiment, after split is 14.5 °；
The tie point of the central axis of two cylindrical lens is the starting launch point of laser covering of the fan.
It is changed into original uneven laser rays in the uniform laser rays of effective length using optical element, is made
The secondary measurement accuracy by making laser rays become uniformly to improve Laser Scanning Equipment after optical element of laser covering of the fan.
Specific embodiments of the present invention are described in detail above, but content is only the preferable implementation of the invention
Example, should not be considered as limiting the invention the practical range of creation.It is all to become according to equalization made by the invention application range
Change and improve etc., it shall still fall within the scope of this patent.
Claims (7)
- The linear laser hot spot longitudinal light method of 1.3d linear laser scanning survey equipment, it is characterised in that: in laser covering of the fan Optical element is placed between measured object, optical module and the laser covering of the fan are coaxially arranged, and laser all passes through optical element, The optical element is swept for single laser covering of the fan to be decomposed into after two independent second laser covering of the fans towards measured object It retouches, and the hot spot of two independent second laser covering of the fans partially overlaps, so that laser rays becomes uniform.
- 2. the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment as described in claim 1, special Sign is: the optical element is specifically put together by two cylindrical lens, and two cylindrical lens are arranged relative to split positional symmetry, The source direction of the flat face of each cylindrical lens towards laser arranges, the bottom convex surfaces of each cylindrical lens is towards lower arrangement.
- 3. the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment as claimed in claim 2, special Sign is: the whole region of the face domain covering laser covering of the fan of two cylindrical lens, and two cylindrical lens are by single fan of laser light Face is decomposed into directive measured object after two independent second laser covering of the fans, the hot spot of measured object two independent second laser covering of the fans Side adjacent to each other partially overlap and form one section on platform effectively using length, measured object is placed in effective use On platform in length.
- 4. the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment as claimed in claim 3, special Sign is: the phase split end face of two cylindrical lens is truncation surface, and the section end of two cylindrical lens is glued mutually to be formed The coplanar arrangement of median plane of integral piece, the split end face and laser covering of the fan.
- 5. the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment as claimed in claim 4, special Sign is: the split end face of two cylindrical lens is inner end, and the equal from-inner-to-outer of the flat face of the cylindrical lens tilts cloth upwards It sets.
- 6. the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment as claimed in claim 5, special Sign is: the angulation that the central axis of two cylindrical lens is formed by after split is 14.5 °.
- 7. the linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment as claimed in claim 5, special Sign is: the tie point of the central axis of two cylindrical lens is the starting launch point of laser covering of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910002618.4A CN109521573A (en) | 2019-01-02 | 2019-01-02 | The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910002618.4A CN109521573A (en) | 2019-01-02 | 2019-01-02 | The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109521573A true CN109521573A (en) | 2019-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910002618.4A Pending CN109521573A (en) | 2019-01-02 | 2019-01-02 | The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment |
Country Status (1)
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| CN (1) | CN109521573A (en) |
Citations (10)
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|---|---|---|---|---|
| US4960972A (en) * | 1989-01-12 | 1990-10-02 | Pioneer Electronic Corporation | Light-beam-operated heating machine |
| JPH02297986A (en) * | 1989-05-11 | 1990-12-10 | Hamamatsu Photonics Kk | Formation of uniform beam, and transmission and irradiation devices for uniform beam |
| CN2426239Y (en) * | 1999-12-09 | 2001-04-04 | 何海球 | Assembly for generating laser light-piece |
| WO2005085935A1 (en) * | 2004-03-06 | 2005-09-15 | Hentze-Lissotschenko Gmbh & Co. Kg | Device for homogenizing light and arrangement for illuminating or focussing with said device |
| CN101490597A (en) * | 2006-07-13 | 2009-07-22 | Limo专利管理有限及两合公司 | Apparatus for homogenizing light and laser apparatus for producing a linear intensity distribution in a work plane |
| CN101660706A (en) * | 2008-12-31 | 2010-03-03 | 广东昭信光电科技有限公司 | LED lens for realizing light beam control |
| CN101922676A (en) * | 2009-06-09 | 2010-12-22 | 深圳市斯派克光电科技有限公司 | Large-angle secondary light-distribution lens of LED streetlamp and manufacturing method thereof |
| CN202582545U (en) * | 2012-03-22 | 2012-12-05 | 马英俊 | Wide-angle linear light spot laser |
| EP2808708A1 (en) * | 2013-05-30 | 2014-12-03 | Ricoh Company, Ltd. | Optical element, projection optical system, and object detector |
| CN105164572A (en) * | 2013-03-20 | 2015-12-16 | Limo专利管理有限及两合公司 | Device for homogenizing laser beam |
-
2019
- 2019-01-02 CN CN201910002618.4A patent/CN109521573A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4960972A (en) * | 1989-01-12 | 1990-10-02 | Pioneer Electronic Corporation | Light-beam-operated heating machine |
| JPH02297986A (en) * | 1989-05-11 | 1990-12-10 | Hamamatsu Photonics Kk | Formation of uniform beam, and transmission and irradiation devices for uniform beam |
| CN2426239Y (en) * | 1999-12-09 | 2001-04-04 | 何海球 | Assembly for generating laser light-piece |
| WO2005085935A1 (en) * | 2004-03-06 | 2005-09-15 | Hentze-Lissotschenko Gmbh & Co. Kg | Device for homogenizing light and arrangement for illuminating or focussing with said device |
| CN101490597A (en) * | 2006-07-13 | 2009-07-22 | Limo专利管理有限及两合公司 | Apparatus for homogenizing light and laser apparatus for producing a linear intensity distribution in a work plane |
| CN101660706A (en) * | 2008-12-31 | 2010-03-03 | 广东昭信光电科技有限公司 | LED lens for realizing light beam control |
| CN101922676A (en) * | 2009-06-09 | 2010-12-22 | 深圳市斯派克光电科技有限公司 | Large-angle secondary light-distribution lens of LED streetlamp and manufacturing method thereof |
| CN202582545U (en) * | 2012-03-22 | 2012-12-05 | 马英俊 | Wide-angle linear light spot laser |
| CN105164572A (en) * | 2013-03-20 | 2015-12-16 | Limo专利管理有限及两合公司 | Device for homogenizing laser beam |
| EP2808708A1 (en) * | 2013-05-30 | 2014-12-03 | Ricoh Company, Ltd. | Optical element, projection optical system, and object detector |
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Application publication date: 20190326 |