CN105630000B - A kind of coarse-fine optical-axis collimation method of adjustment - Google Patents
A kind of coarse-fine optical-axis collimation method of adjustment Download PDFInfo
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- CN105630000B CN105630000B CN201410617423.8A CN201410617423A CN105630000B CN 105630000 B CN105630000 B CN 105630000B CN 201410617423 A CN201410617423 A CN 201410617423A CN 105630000 B CN105630000 B CN 105630000B
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Abstract
The invention belongs to engineering measuring technology fields, and in particular to a kind of coarse-fine optical-axis collimation method of adjustment, it is therefore an objective to solve the problems, such as that existing method of adjustment limitation is big.This method includes that installation equipment and coarse-fine optical-axis collimation adjust two steps.The present invention is used by placing target screen at different distances, and two optical axis target points are accepted on screen, obtain the relative positional relationship of target point, adjust plain shaft parallelism.Adjustment precision estimation, if optical axis relative position deviates during 50m to 97m is adjusted and is not more than 10mm, alignment error is 20mm within the scope of 100m at this time, then the offset of two optical axises can be controlled in 200mm within the scope of 1km, and target screen receiving area is 500mm in testing, and can satisfy 1km Range Focusing and aims at requirement.
Description
Technical field
The invention belongs to engineering measuring technology fields, and in particular to a kind of coarse-fine optical-axis collimation method of adjustment.
Background technique
With few development of Application Optics industry, possesses the multispectral optical instrumentation for not being total to characteristics of optical path and seldom gush
It is existing, wherein evaluating the collimation that the most important technical indicator of this kind of instrument and equipment is optical axis between contained optics.
There is much the parallel mode of optical axis between adjustment is not total to the optical system of optical path, common mode is to use parallel light tube
The depth of parallelism between optical axis is adjusted, it is higher that this mode adjusts parallelism precision, can merge a variety of detection modules, can be to survey
Amount result is analyzed in real time and data processing, but this method of adjustment limitation is bigger, to optical axis under different measuring distances
The depth of parallelism adjustment need the light pipe of different pore size to be simulated, if adjust optical system in use televised optical system
System, it is also necessary to which setting up instruction light source couples in outside should not operate into TV formula optical system, but also can introduce coupling light
Road bring extra error.
Summary of the invention
Present invention aim to address the big problems of existing method of adjustment limitation, and it is parallel to provide a kind of coarse-fine optical-axis
Property method of adjustment.
The present invention is implemented as follows:
A kind of coarse-fine optical-axis collimation method of adjustment, includes the following steps:
Step 1: installation equipment；
Two pieces of target screens are being placed at optical system different distance, vertical away from installing on the closer target screen of optical system
Indicator；
Step 2: coarse-fine optical-axis collimation adjustment；
Coarse-fine optical-axis collimation adjustment is carried out to the equipment of first step installation.
Installation device step as described above provides the optical system of smart visual field using Cassegrain telescope, laser
It is emitted after Cassegrain's secondary mirror reflects and reaches primary mirror by primary mirror；The optical system of thick visual field is provided and takes aim at prestige for the sight of televised
Remote mirror takes aim at telescope observation target screen with sight.
Coarse-fine optical-axis collimation set-up procedure as described above, includes the following steps:
(1) extraction of focus lamp optical axis is expanded；
(2) it sees and takes aim at the extraction of mirror optical axis；
(3) it sees to take aim at mirror and expand focus lamp plain shaft parallelism and adjust；
(4) judge that focusing reference point and sight takes aim at whether reference point locations change；
(5) judge to focus reference point and sight take aim at reference point in target screen is mobile position whether significant change.
Focus lamp optical axis is expanded as described above and draws step, and instruction laser progress collimator and extender is become into diameter 75mm and is put down
Row light.
Focus lamp optical axis is expanded as described above draws step, indication laser uses the optical fiber laser of naked fibre output,
Fiber mode is single mode；The laser that collimator and extender mirror issues indication laser carries out beam-expanding collimation；It will be by beam-expanding collimation
In parallel optically coupling to the secondary mirror input hole for expanding focusing telescope, the master for expanding focusing telescope is reached after secondary mirror reflects
Mirror is emitted after being expanded the primary mirror reflection of focusing telescope；It expands to place at focusing telescope 50m in distance and receives target screen, adjust
The whole focusing telescope that expands is focused movement, makes to indicate that laser focuses on receiving target screen, records focal position reference point.
Collimator and extender mirror as described above uses focal length for 250mm, and the Standard Fourier Transform lens that bore is 75mm are real
It is existing；The primary mirror for expanding focusing telescope is diameter 280mm, and focal length is the parabolic mirror of 1400mm, and secondary mirror is diameter 80mm
Focal length is the parabolic mirror of 650mm.
As described above see takes aim at mirror optical axis and draws step, mirror is taken aim in sight is placed in and expand on focusing barrel, adjustment see take aim at mirror with
It is parallel to expand focus lamp optical axis；Adjustment is seen and takes aim at mirror focal length, can be to target screen blur-free imaging at 50m, and records sight and take aim at mirror ten
Position reference point is taken aim at as sight at this time in the position of word silk aiming target screen；And it records to expand focus lamp and see and takes aim at mirror in the position of target screen
It sets.
As described above see takes aim at mirror and expands focus lamp plain shaft parallelism set-up procedure, and target screen is moved to the position 60m, adjusts
Whole vertical-indicator makes vertical-indicator plumb line pass through two permanent datums, to expand focus lamp optical axis as benchmark, adjustment
Mirror orientation and pitching are taken aim in sight, so that crosshair position is taken aim at mirror reference point locations with sight at 50m and are overlapped；Target screen is moved at 50m, weight
Reference point is focused on new record vertical-indicator plumb line direction and sees the position for taking aim at reference point.
Judge to focus as described above reference point and sight take aim at reference point locations whether conversion step, judge to focus reference point with
Sight takes aim at reference point and does not change relative position in 50m to 60m is mobile, if variation, go to step (3)；If not changing, into
Enter in next step.
Judge to focus as described above reference point and sight take aim at reference point in target screen moves position whether significant change step,
Target screen will be received to be moved to from 97m from 50m, observation focuses reference point and reference point offset is taken aim in sight, judge to focus reference point with
Sight takes aim at whether reference point changes position in target screen is mobile, if significant change, go to step (3), and otherwise adjustment finishes.
The beneficial effects of the present invention are:
The present invention is used by placing target screen at different distances, and two optical axis target points are accepted on screen, obtain target point
Relative positional relationship, adjust plain shaft parallelism.Adjustment precision estimation, if optical axis relative position is during 50m to 97m is adjusted
Deviate and be not more than 10mm, alignment error is 20mm within the scope of 100m at this time, then the offset of two optical axises can be controlled within the scope of 1km
System is in 200mm, and target screen receiving area is 500mm in testing, and can satisfy 1km Range Focusing and aims at requirement.
Detailed description of the invention
Fig. 1 is a kind of flow chart of coarse-fine optical-axis collimation method of adjustment of the invention；
Fig. 2 is the structural schematic diagram that equipment is installed in Fig. 1；
In figure, telescope is taken aim in 1. target screens, 2. sights, and 3. expand focusing telescope, 4. vertical-indicators.
Specific embodiment
A kind of coarse-fine optical-axis collimation method of adjustment of the invention is introduced with reference to the accompanying drawings and examples:
As shown in Figure 1, a kind of coarse-fine optical-axis collimation method of adjustment, includes the following steps:
Step 1: installation equipment；
As shown in Fig. 2, placing two pieces of target screens 1 at optical system different distance, away from the closer target of optical system
Vertical-indicator 4 is installed on screen.In the present embodiment, the optical system of smart visual field is provided using Cassegrain telescope, is swashed
Light is emitted after Cassegrain's secondary mirror reflects and reaches primary mirror by primary mirror.The optical system of thick visual field is provided to take aim at for the sight of televised
Telescope 2 takes aim at telescope 2 with sight and observes target screen 1.Vertical-indicator 4 is realized using plummet.
Step 2: coarse-fine optical-axis collimation adjustment；
Coarse-fine optical-axis collimation adjustment is carried out to the equipment of first step installation, is specifically comprised the following steps:
(1) extraction of focusing telescope optical axis is expanded；
It will indicate that laser carries out the directional light that collimator and extender becomes diameter 75mm.In the present embodiment, indication laser is adopted
The optical fiber laser exported with naked fibre, fiber mode is single mode；Collimator and extender mirror expands the laser that indication laser issues
Beam collimation, collimator and extender mirror use focal length for 250mm, and the Standard Fourier Transform lens that bore is 75mm are realized.It will be by expanding
Beam collimates parallel optically coupling to the secondary mirror input hole for expanding focusing telescope 3, reaches after secondary mirror reflects and expands focusing prestige
The primary mirror of remote mirror 3 is emitted after being expanded the primary mirror reflection of focusing telescope 3.The primary mirror for expanding focusing telescope 3 is diameter
280mm, focal length are the parabolic mirror of 1400mm, and secondary mirror is the parabolic mirror that diameter 80mm focal length is 650mm.Away from
Target screen 1 is received from expanding to place at focusing telescope 50m, adjustment expands focusing telescope 3 and is focused movement, makes to indicate laser
It is focused on receiving target screen 1, record focal position is as a reference point, i.e. focal position reference point.In the present embodiment, instruction swashs
Light is 633nm or 1064nm.
(2) it sees and takes aim at telescope optic axis extraction；
It telescope 2 is taken aim at into sight is placed in and expand on 3 lens barrel of focusing telescope, adjustment, which is seen, to be taken aim at telescope 2 and look in the distance with focusing is expanded
3 optical axis of mirror is parallel.Adjustment is seen and takes aim at 2 focal length of telescope, can be to 1 blur-free imaging of target screen at 50m, and records sight and take aim at telescope
Position reference point is taken aim at as sight at this time in the position of 2 crosshair aiming target screens 1；And it records to expand focusing telescope 3 and take aim at sight and look in the distance
Mirror 2 is in the position of target screen 1.
(3) it sees to take aim at telescope and expand focusing telescope plain shaft parallelism and adjust；
Target screen 1 is moved to the position 60m, adjusts vertical-indicator 4,4 plumb line of vertical-indicator is made to pass through two fixed ginsengs
Examination point, to expand 3 optical axis of focusing telescope as benchmark, adjustment is seen and takes aim at 2 azimuth of telescope and pitch angle, makes crosshair position
2 reference point locations of telescope are taken aim at sight at 50m to be overlapped；Target screen 1 is moved at 50m, records 4 plumb line of vertical-indicator again
Reference point is focused on direction and sees the position for taking aim at reference point.
(4) judge that focusing reference point and sight takes aim at whether reference point locations change；
Judgement focuses reference point and sight takes aim at reference point and do not change relative position in 50m to 60m is mobile, if variation,
Go to step (3).If not changing, into next step.Not changing herein refers to that focusing reference point and sight takes aim at reference point in 50m
5mm is less than to change in location into 60m movement.
(5) judge to focus reference point and sight take aim at reference point in target screen 1 is mobile position whether significant change；
Target screen 1 will be received to be moved to from 97m from 50m, observation focuses reference point and reference point offset is taken aim in sight, judges to focus
Reference point and sight take aim at whether reference point changes position in target screen 1 is mobile, if significant change, go to step (3), otherwise adjusts
It is whole to finish.In the present embodiment, focus reference point and sight take aim at reference point target screen 1 from 50m to 97m change in location in moving process
When less than 10mm, illustrate no significant change.
The present invention is used by placing target screen 1 at different distances, and two optical axis target points are accepted on screen, obtain target point
Relative positional relationship, adjust plain shaft parallelism.Adjustment precision estimation, if optical axis relative position is during 50m to 97m is adjusted
Deviate and be not more than 10mm, alignment error is 20mm within the scope of 100m at this time, then the offset of two optical axises can be controlled within the scope of 1km
System is in 200mm, and 1 receiving area of target screen is 500mm in testing, and can satisfy 1km Range Focusing and aims at requirement.
Claims (8)
1. a kind of coarse-fine optical-axis collimation method of adjustment, includes the following steps:
Step 1: installation equipment；
Two pieces of target screens (1) are being placed at optical system different distance, vertical away from installing on the closer target screen (1) of optical system
Straight indicator (4)；
The installation device step provides the optical system of smart visual field using Cassegrain telescope, and laser passes through card plug
The reflection of Green's secondary mirror is emitted after reaching primary mirror by primary mirror；The optical system of thick visual field is provided and takes aim at telescope (2) for the sight of televised,
Telescope (2) observation target screen (1) is taken aim at sight；
Step 2: coarse-fine optical-axis collimation adjustment；
Coarse-fine optical-axis collimation adjustment is carried out to the equipment of first step installation, is specifically comprised the following steps:
1) extraction of focus lamp optical axis is expanded；
2) it sees and takes aim at the extraction of mirror optical axis；
3) it sees to take aim at mirror and expand focus lamp plain shaft parallelism and adjust；
4) judge that focusing reference point and sight takes aim at whether reference point locations change；
5) judge to focus reference point and sight take aim at reference point in target screen (1) is mobile position whether significant change.
2. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 1, it is characterised in that: described expands
Focus lamp optical axis draws step, and instruction laser is carried out collimator and extender and becomes diameter 75mm directional light.
3. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 2, it is characterised in that: described expands
Focus lamp optical axis draws step, and indication laser uses the optical fiber laser of naked fibre output, and fiber mode is single mode；Collimator and extender
The laser that mirror issues indication laser carries out beam-expanding collimation；It will look in the distance by the parallel of beam-expanding collimation optically coupling to expanding focusing
The secondary mirror input hole of mirror (3) reaches the primary mirror for expanding focusing telescope (3), through expanding focusing telescope after secondary mirror reflects
(3) it is emitted after primary mirror reflection；It expands to place at focusing telescope (3) 50m in distance and receives target screen (1), adjustment expands focusing
Telescope (3) is focused movement, makes to indicate that laser focuses on receiving target screen (1), records focal position reference point.
4. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 3, it is characterised in that: the collimation
Beam expanding lens uses focal length for 250mm, and the Standard Fourier Transform lens that bore is 75mm are realized；Expand focusing telescope (3)
Primary mirror is diameter 280mm, and focal length is the parabolic mirror of 1400mm, and secondary mirror is the paraboloid that diameter 80mm focal length is 650mm
Reflecting mirror.
5. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 1, it is characterised in that: the sight is taken aim at
Mirror optical axis draws step, mirror is taken aim in sight is placed in and expand on focusing barrel, and adjustment sees that take aim at mirror parallel with focus lamp optical axis is expanded；Adjustment
Mirror focal length is taken aim in sight, can be to target screen (1) blur-free imaging at 50m, and records the position that mirror crosshair aiming target screen (1) is taken aim in sight
It sets, takes aim at position reference point as sight at this time；And record expands focus lamp and sight takes aim at mirror in the position of target screen (1).
6. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 1, it is characterised in that: the sight is taken aim at
Mirror and focus lamp plain shaft parallelism set-up procedure is expanded, target screen (1) is moved to the position 60m, adjusts vertical-indicator (4), makes
Vertical-indicator (4) plumb line passes through two permanent datums, to expand focus lamp optical axis as benchmark, adjustment see take aim at mirror orientation with
Pitching makes crosshair position take aim at mirror reference point locations with sight at 50m and is overlapped；Target screen (1) is moved at 50m, record hangs down again
Reference point is focused on straight indicator (4) plumb line direction and sees the position for taking aim at reference point.
7. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 1, it is characterised in that: the judgement
Focus reference point and sight take aim at reference point locations whether conversion step, judge that focusing reference point and sight takes aim at reference point in 50m to 60m shifting
Relative position does not change in dynamic, if variation, go to step (3)；If not changing, into next step.
8. a kind of coarse-fine optical-axis collimation method of adjustment according to claim 1, it is characterised in that: the judgement
Focus reference point and sight take aim at reference point in target screen (1) is mobile position whether significant change step, target screen (1) will be received from 50m
It is moved at 97m, observation focuses reference point and reference point offset is taken aim in sight, judges that focusing reference point and sight takes aim at reference point in target screen
(1) whether position changes in movement, if significant change, go to step (3), and otherwise adjustment finishes.
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| CN201410617423.8A CN105630000B (en) | 2014-11-05 | 2014-11-05 | A kind of coarse-fine optical-axis collimation method of adjustment |
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| CN201410617423.8A CN105630000B (en) | 2014-11-05 | 2014-11-05 | A kind of coarse-fine optical-axis collimation method of adjustment |
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| CN105630000B true CN105630000B (en) | 2019-02-26 |
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| CN106405856A (en) * | 2016-10-18 | 2017-02-15 | 中国航空工业集团公司洛阳电光设备研究所 | Method for detecting optical axis stability of optical lens during focusing process |
| CN108362276B (en) * | 2018-02-23 | 2020-06-12 | 西安应用光学研究所 | Spatial large-span multi-optical-axis shaft correcting system and correcting device and method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130754A (en) * | 1994-12-09 | 1996-09-11 | 株式会社拓普康 | Surveying instrument |
| CN101294823A (en) * | 2007-04-28 | 2008-10-29 | 长春奥普光电技术股份有限公司 | Method for multi-load photoelectric tracking equipment self-adjusting two light axes to be parallel |
| CN201514204U (en) * | 2009-09-11 | 2010-06-23 | 西安工业大学 | Dual optical-axis (laser and visible light) sight deflection test device in outfield environment |
| US8186069B1 (en) * | 2010-03-23 | 2012-05-29 | David Gian-Teh Ho | Multi-beam laser optical alignment method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010216679A (en) * | 2009-03-13 | 2010-09-30 | Hitachi Kokusai Electric Inc | Optical axis calibrator |
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- 2014-11-05 CN CN201410617423.8A patent/CN105630000B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130754A (en) * | 1994-12-09 | 1996-09-11 | 株式会社拓普康 | Surveying instrument |
| CN101294823A (en) * | 2007-04-28 | 2008-10-29 | 长春奥普光电技术股份有限公司 | Method for multi-load photoelectric tracking equipment self-adjusting two light axes to be parallel |
| CN201514204U (en) * | 2009-09-11 | 2010-06-23 | 西安工业大学 | Dual optical-axis (laser and visible light) sight deflection test device in outfield environment |
| US8186069B1 (en) * | 2010-03-23 | 2012-05-29 | David Gian-Teh Ho | Multi-beam laser optical alignment method and system |
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