CN103364174A - Multiparameter digitlization measuring instrument of visible near infrared laser beam - Google Patents
Multiparameter digitlization measuring instrument of visible near infrared laser beam Download PDFInfo
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- CN103364174A CN103364174A CN2012100868890A CN201210086889A CN103364174A CN 103364174 A CN103364174 A CN 103364174A CN 2012100868890 A CN2012100868890 A CN 2012100868890A CN 201210086889 A CN201210086889 A CN 201210086889A CN 103364174 A CN103364174 A CN 103364174A
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Abstract
The invention relates to a multiparameter digitlization measuring instrument of visible near infrared laser beam. The instrument comprises a computer, analysis software, a coupling device, a working distance program control adjusting device, an attenuating device, a light splitting device, a light source indicating device, a protective cover and a pedestal. In the invention, the light source indicating device, the light splitting device, and a self-adjusting device are coaxial with an optical system of a system to be tested, provide a finite or infinite target to the system to be tested, and serve as an indication. When a cross graduation of the light source indicating device coincides with the cross graduation of the system to be tested, the optical axis of the measuring instrument coincides with the optical axis of the system under test; a CCD (charge coupled device) camera arranged on an object lens focal plane records changes of a light spot; and a computer program is used to obtain such parameters of the system to be tested as the laser light spot size, laser divergence angle, light intensity distribution, and light spot walking momentum.
Description
Technical field
The present invention relates to the parameters such as low power laser facula size, laser beam divergence, light distribution situation are measured, especially for the multiaxis optical instrument with laser indication function, walk momentum, hot spot setting range, hot spot such as the hot spot of the instruments such as laser designator, laser level, Laser Line Marker, laser range finder, transit and total powerstation and depart from the parameters such as (axle) amount, multiaxis consistance and measure, belong to the optical gauge field.
Background technology
Laser designator is as a kind of target-designator of practicality, have the characteristics such as profile is simple, portable and smart, portable, now be widely used in the various civilian industry products such as false distinguishing security protection, beauty instrument, medical care instrument, range finding (thermometric) instrument, scanner, frame for line marking instrument, projection teaching's Pen for turning page.For the parameter of these laser designator, such as laser facula size, laser beam divergence, light distribution situation etc. strict demand is arranged.In addition, laser designator also is widely used in many optical tooling systems as accessory,, walk momentum, hot spot setting range, hot spot for the hot spot of laser designator in these instrument and equipments and depart from the parameters such as (axle) amount, multiaxis consistance and carry out the detecting instrument of composite measurement and there is not yet report with laser sight, laser level, Laser Line Marker, laser range finder, transit and total powerstation etc. such as rifle.
Summary of the invention
The invention provides a kind of Visible-to-Near InfaRed laser beam multiparameter digitalized measuring apparatus, measure in the multiple relevant parameter of other system optical axis for the laser relative that has laser indication function in the telescopic system, can realize simultaneously the image digitazation measuring ability of the multinomial conventional parameters such as laser facula size, laser beam divergence, light distribution of low-power laser.
A kind of Visible-to-Near InfaRed laser beam multiparameter digitalized measuring apparatus, it is characterized in that the detection system (A) that this measuring instrument is comprised of coupling device (1), the program control adjusting gear of working distance (2), attenuating device (3), sniffer (4), light-dividing device (5), light source indicating device (6), protective cover (7) and base (8), the computer system (B) that is comprised of computing machine and analysis software is formed.。
Reflecting prism and Amici prism spacing in this measuring instrument coupling device (1) are adjustable, and therefore, for the different tested tools of taking aim at, the spacing of its guidance axis and Laser emission axle does not wait, and can realize by the adjustment of this measuring instrument detecting.
This measuring instrument has the program control adjusting gear of working distance (2) of the parameters of laser beam detection that is applicable to the focal spot method.For different measurands, its tested wavelength is different, so its working distance is different, this measuring instrument is realized the program control adjustment of working distance by guide rail screw rod transmission mode.
This measuring instrument arranged attenuating device (3) before CCD camera light spot received.This attenuating device adopts polarization theory, utilize the Worm Wheel System mode to realize the polaroid rotation, and the motor that computerizeds control is realized program control light intensity decays.
This measuring instrument adopts visible and infrared two CCD cameras carry out the reception of laser facula, utilizes Amici prism to carry out light splitting, and is provided with micromatic setting, and the CCD camera places the place, focal plane of object lens, is used for the feature situation of record hot spot.
This measuring instrument adopts tribrach, plane beam splitter and relevant micromatic setting to form light-dividing device (5), and be provided with laser instrument, plays the laser designation effect herein, and the coarse alignment of tool is taken aim in realization.
This measuring instrument is provided with light source indicating device (6) for realizing alignment function, and for system under test (SUT) provides the target of an infinite distance, when the cross-graduation in the light source indicating device and the cross-graduation in the system under test (SUT) coincided, the accurate aligning of tool was taken aim in realization.
Principle of work of the present invention such as Fig. 2: the Amici prism optical axis in the coupling device, objective lens optical axis in the program control adjusting gear of working distance, the spectroscopical central axis of two plate planes in the light-dividing device and the cross-graduation central axis in the light source indicating device are all point-blank, cross-graduation in the light source indicating device and the cross-graduation in the system under test (SUT) coincide, as seen reach the cross-graduation conjugation in infrared CCD camera and the light source indicating device, all be positioned on the focal plane of object lens, by the feature situation of hot spot on the record CCD camera, utilize computer program to calculate corresponding parameter.
Description of drawings
Fig. 1 system global structure synoptic diagram
(A) detection system
(B) computer system
(1) coupling device
(2) the program control adjusting gear of working distance
(3) attenuating device
(4) sniffer
(5) light-dividing device
(6) light source indicating device
(7) protective cover
(8) base
Fig. 2 test macro optical schematic diagram
(9) measured laser is taken aim at tool
(10) Amici prism 1
(11) object lens
(12) polaroid 1
(13) polaroid 2
(14) Amici prism 2
(15) Visible-light CCD
(16) infrared CCD
(17) plane beam splitter 1
(18) plane beam splitter 2
(19) laser instrument
(20) cross-graduation
(21) light source
Embodiment
Divide dual mode: a kind of is the optical instrument that is applicable to laser designator, such as the rifle laser sight, laser level, Laser Line Marker, laser range finder, transit and total powerstation etc., as shown in Figure 2, open measuring instrument computing machine and light source, the tested optical instrumentation that will have laser indication function is placed on the test product frame (platform), allow the laser entrance port of laser alignment measuring instrument of indicator, input measured laser device wavelength in the computer system (B) of measuring instrument, computing machine calculates the objective focal length under this operation wavelength automatically, program control adjusting object lens (11) move to accurate location, reflecting prism in the manual mobile coupling device (1), its gun sight of aiming at tested optical instrument is looked in the distance, observe the cross-graduation (20) of measuring instrument by finder telescope, regulate the cross-graduation (20) that tested optical instrument makes the graduation aligning measuring instrument of finder telescope, if there is not large deviation in the position between the Laser emission axle of tested optical instrument and the finder telescope optical axis, then the laser designator emitting laser just can shine on the CCD (15/16), if visible light, then be imaged onto on the Visible-light CCD (15), if near infrared light, be imaged onto on the infrared CCD (16), TT﹠C software by measuring instrument, program control turbine and worm transmission, adjust polaroid 1 (12) and polaroid 2 (13) angles in the attenuating device (3), the light intensity that shines on the CCD is increased, until guarantee to have maximum illuminance, be no more than again the saturation range of CCD, this moment is by image process and analysis calculation procedure automatic calculation spot size, beam divergence angle, light distribution, hot spot bias, the parameters such as the consistance (angulation) of hot spot setting range and Laser emission axle and finder telescope optical axis (guidance axis); Another kind is applicable to independent laser instrument, be placed in laser instrument on the test product frame (platform) this moment, make the laser entrance port of its laser alignment measuring instrument, input measured laser device wavelength in the computer system (B) of measuring instrument, computing machine calculates the objective focal length under this operation wavelength automatically, program control adjusting object lens (11) move to accurate location, open the indication laser (19) of light-dividing device in the measuring instrument (5) below, after the redness that it sends indicates laser by the reflection of the plane beam splitter (18) in the light-dividing device (5) and plane beam splitter (17) transmission, through the alignment fiducials of object lens (11) outgoing as the measured laser device, adjusting the measured laser device makes its light beam along the incident of redness indication laser, the laser that then sees through object lens (11) just can shine on the CCD (15/16), if visible light, then be imaged onto on the Visible-light CCD (15), if near infrared light, be imaged onto on the infrared CCD (16), TT﹠C software by measuring instrument, program control turbine and worm transmission, adjust polaroid 1 (12) and polaroid 2 (13) angles in the attenuating device (3), the light intensity that shines on the CCD is increased, until guarantee to have maximum illuminance, be no more than again the saturation range of CCD, this moment is by image process and analysis calculation procedure automatic calculation spot size, beam divergence angle, the parameters such as light distribution.
Claims (7)
1. Visible-to-Near InfaRed laser beam multiparameter digitalized measuring apparatus, it is characterized in that: this measuring instrument is by coupling device (1), the program control adjusting gear of working distance (2), attenuating device (3), sniffer (4), light-dividing device (5), light source indicating device (6), the detection system (A) that protective cover (7) and base (8) form, the two large divisions forms with the computer system that is comprised of PC and analysis software (B), this measuring instrument is applicable to low-power semiconductor laser, the He-Ne laser instrument, solid state laser and other miniwatt be as seen---the parameter detecting of near-infrared band laser instrument, as: spot size, beam divergence angle, light intensity distributions, pattern and M
2The parameters such as the factor.In addition can also be to having the photoelectric instrument of laser indication function, such as laser designator, laser level, Laser Line Marker, laser range finder, measure with multiaxis photoelectric instrument relevant parameters such as the transit of laser designation, total powerstations, walk momentum, hot spot setting range, hot spot such as: hot spot and depart from the parameters such as (axle) amount, multiaxis consistance and measure.
2. measuring instrument according to claim 1, it is characterized in that: reflecting prism and Amici prism spacing in this measuring instrument coupling device (1) are adjustable, therefore, for different tested multiaxis instruments, the spacing of its guidance axis and Laser emission axle does not wait, can realize by the adjustment of this measuring instrument detecting highly versatile.
3. measuring instrument according to claim 1 is characterized in that: this measuring instrument has the program control adjusting gear of working distance (2) that the parameters of laser beam that is applicable to the focal spot method detects.For different measurands, its tested wavelength is different, so its working distance is different, this measuring instrument is by the rolling lead screw type of belt drive, and auxiliary high precision guide rail is realized the program control adjustment of working distance, improves the precision that detects.
4. measuring instrument according to claim 1, it is characterized in that: this measuring instrument arranged attenuating device (3) before CCD camera light spot received.This attenuating device adopts polarization theory, utilize the worm and gear mechanical drive to realize the polaroid rotation, and the motor that computerizeds control is realized program control light intensity decays.
5. measuring instrument according to claim 1, it is characterized in that: this measuring instrument adopts visible and infrared two CCD cameras carry out the reception of laser facula, utilize Amici prism to carry out light splitting, and be provided with micromatic setting, the CCD camera places the place, focal plane of object lens, the feature situation that is used for the record hot spot detects wave spectrum scope 300nm-1700nm.
6. measuring instrument according to claim 1, it is characterized in that: this measuring instrument adopts tribrach, plane beam splitter and relevant micromatic setting to form light-dividing device (5), be provided with laser instrument herein, play the laser designation effect, the coarse alignment of tool is taken aim in realization, and it is more convenient that detection is aimed at.
7. measuring instrument according to claim 1, it is characterized in that: this measuring instrument is for realizing the multiaxis instrument, particularly with the instrument alignment function of telescopic system, be provided with the light source indicating device (6) of simulation infinite distance target, the target of an infinite distance is provided for system under test (SUT), when the cross-graduation in light source indicating device (6) and the cross-graduation in the system under test (SUT) coincide, realize taking aim at the accurate aligning of tool.
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Cited By (14)
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| CN103644899A (en) * | 2013-12-06 | 2014-03-19 | 苏州迅威光电科技有限公司 | Laser centering module for total station |
| CN104019806A (en) * | 2014-06-09 | 2014-09-03 | 国家电网公司 | Adjustment device and method for laser alignment device in measurement instrument base |
| CN104458211A (en) * | 2014-11-28 | 2015-03-25 | 马瑞利汽车零部件(芜湖)有限公司 | Automatic detecting system for detecting two automotive headlamps simultaneously |
| CN104931812A (en) * | 2015-05-15 | 2015-09-23 | 南开大学 | Electro-optical crystal electro-optical factor measure method and device |
| CN108415030A (en) * | 2018-01-15 | 2018-08-17 | 北京航空航天大学 | A kind of EO-1 hyperion laser radar system based on light intensity light splitting |
| CN108693516A (en) * | 2018-08-20 | 2018-10-23 | 中国科学院上海技术物理研究所 | A kind of device and method of quick measurement laser ranging system performance |
| CN108801652A (en) * | 2018-06-14 | 2018-11-13 | 中国人民解放军陆军工程大学 | Caterpillar gun sight detection device |
| CN108931783A (en) * | 2018-08-20 | 2018-12-04 | 中国科学院上海技术物理研究所 | A kind of device and method of high-acruracy survey laser ranging system performance |
| CN109802293A (en) * | 2019-03-12 | 2019-05-24 | 西北核技术研究所 | A kind of external instruction light of laser safely introduces system and method |
| CN110296665A (en) * | 2019-08-09 | 2019-10-01 | 云南楚天工程检测有限公司 | A kind of adjustable aperture-type measuring apparatus of diameter |
| CN110332927A (en) * | 2019-07-25 | 2019-10-15 | 常州大地测绘科技有限公司 | A kind of push-bench small light spot laser-guided systems |
| CN110909478A (en) * | 2019-11-28 | 2020-03-24 | 上海航天精密机械研究所 | Light spot power density field measurement modeling method during laser defocusing processing |
| CN111480048A (en) * | 2017-08-24 | 2020-07-31 | 赛峰电子与防务公司 | Imaging instrument for examination target indication |
| CN113048918A (en) * | 2021-03-25 | 2021-06-29 | 长春理工大学 | Device and method for detecting consistency of emission axis and aiming axis |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644899A (en) * | 2013-12-06 | 2014-03-19 | 苏州迅威光电科技有限公司 | Laser centering module for total station |
| CN104019806A (en) * | 2014-06-09 | 2014-09-03 | 国家电网公司 | Adjustment device and method for laser alignment device in measurement instrument base |
| CN104458211A (en) * | 2014-11-28 | 2015-03-25 | 马瑞利汽车零部件(芜湖)有限公司 | Automatic detecting system for detecting two automotive headlamps simultaneously |
| CN104458211B (en) * | 2014-11-28 | 2017-03-01 | 马瑞利汽车零部件(芜湖)有限公司 | The double lamp of car headlamp is same to examine automatic checkout system |
| CN104931812A (en) * | 2015-05-15 | 2015-09-23 | 南开大学 | Electro-optical crystal electro-optical factor measure method and device |
| CN104931812B (en) * | 2015-05-15 | 2018-02-02 | 南开大学 | A kind of method and device for measuring electro-optic crystal electro-optic coefficient |
| CN111480048A (en) * | 2017-08-24 | 2020-07-31 | 赛峰电子与防务公司 | Imaging instrument for examination target indication |
| CN111480048B (en) * | 2017-08-24 | 2021-11-12 | 赛峰电子与防务公司 | Imaging instrument for examination target indication |
| CN108415030B (en) * | 2018-01-15 | 2020-08-28 | 北京航空航天大学 | Hyperspectral laser radar system based on light intensity light splitting |
| CN108415030A (en) * | 2018-01-15 | 2018-08-17 | 北京航空航天大学 | A kind of EO-1 hyperion laser radar system based on light intensity light splitting |
| CN108801652A (en) * | 2018-06-14 | 2018-11-13 | 中国人民解放军陆军工程大学 | Caterpillar gun sight detection device |
| CN108931783A (en) * | 2018-08-20 | 2018-12-04 | 中国科学院上海技术物理研究所 | A kind of device and method of high-acruracy survey laser ranging system performance |
| CN108693516A (en) * | 2018-08-20 | 2018-10-23 | 中国科学院上海技术物理研究所 | A kind of device and method of quick measurement laser ranging system performance |
| CN108931783B (en) * | 2018-08-20 | 2023-09-12 | 中国科学院上海技术物理研究所 | Device and method for measuring performance of laser ranging system with high precision |
| CN108693516B (en) * | 2018-08-20 | 2024-02-20 | 中国科学院上海技术物理研究所 | Device and method for rapidly measuring performance of laser ranging system |
| CN109802293A (en) * | 2019-03-12 | 2019-05-24 | 西北核技术研究所 | A kind of external instruction light of laser safely introduces system and method |
| CN110332927A (en) * | 2019-07-25 | 2019-10-15 | 常州大地测绘科技有限公司 | A kind of push-bench small light spot laser-guided systems |
| CN110296665A (en) * | 2019-08-09 | 2019-10-01 | 云南楚天工程检测有限公司 | A kind of adjustable aperture-type measuring apparatus of diameter |
| CN110909478A (en) * | 2019-11-28 | 2020-03-24 | 上海航天精密机械研究所 | Light spot power density field measurement modeling method during laser defocusing processing |
| CN113048918A (en) * | 2021-03-25 | 2021-06-29 | 长春理工大学 | Device and method for detecting consistency of emission axis and aiming axis |
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Application publication date: 20131023 |