CN117331235A - Reverse adjustment method for kude optical path - Google Patents
Reverse adjustment method for kude optical path Download PDFInfo
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- CN117331235A CN117331235A CN202311288276.XA CN202311288276A CN117331235A CN 117331235 A CN117331235 A CN 117331235A CN 202311288276 A CN202311288276 A CN 202311288276A CN 117331235 A CN117331235 A CN 117331235A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000012634 optical imaging Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1822—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors comprising means for aligning the optical axis
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/198—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors with means for adjusting the mirror relative to its support
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The invention relates to the technical field of optical-mechanical system adjustment, in particular to a kude optical path reverse adjustment method, which comprises the following steps: s1, calibrating a pitching axis through a theodolite and a pitching axis reference mirror; s2, mounting the first reflecting mirror on a pitching frame, and adjusting the inclination angle of the first reflecting mirror to enable an auto-collimation image of the theodolite to be positioned at the center of the reticle; s3, mounting the azimuth axis reference mirror on an azimuth frame; s4, mounting the second reflecting mirror on the azimuth frame; s5, aligning the theodolite with an incident optical axis reference mirror to enable an auto-collimation image of the theodolite to be positioned at the center of the reticle; s6, mounting the fifth reflecting mirror on the base; s7, reinstalling the optical terminal on the incidence reference installation surface. The invention can realize the adjustment of the reflecting mirrors at different positions by using a single theodolite, and has the advantages of high adjustment precision, simple and convenient operation, wide application range and the like.
Description
Technical Field
The invention relates to the technical field of optical mechanical system adjustment, in particular to a kude optical path reverse adjustment method.
Background
Along with the continuous improvement of performance indexes such as resolution, action distance and the like of the photoelectric tracking system, the installation of optical terminals such as a laser, an optical imaging lens group, a detector and the like in an optical mechanical system is more complicated. The optical terminal is usually mounted in a fixed base under the limitation of equipment volume and weight, and then the optical beam is conducted by utilizing a kude optical path to control the transmission path of the optical beam, so that the precise control of the optical axis pointing direction is realized.
The kude light path is a total reflection light guide light path and consists of a plurality of plane reflecting mirrors arranged in a two-axis turntable. The reflecting mirror is driven to rotate by the two-axis turntable, so that the light beam emitted by the optical terminal is transmitted to the appointed direction after being transmitted by a plurality of reflecting mirrors in the kude optical path. The adjustment precision of the kude optical path is a decisive factor for influencing the pointing precision of the optical axis of the photoelectric tracking system.
The patent application publication No. CN114415389A discloses an optical-mechanical system adjustment method comprising a plurality of reflectors, wherein two theodolites are used for calibrating an azimuth axis and a pitching axis respectively, then the azimuth axis and the pitching axis are transmitted to different positions by utilizing a large-caliber plane reflector translation reference and a theodolite mutual aiming mode, and finally the adjustment of each reflector is completed by adopting a multi-theodolite mutual aiming mode at different positions.
Disclosure of Invention
The invention provides a method for reversely adjusting a kude optical path, which aims to solve the problems that the existing adjusting method needs to realize the adjustment of reflecting mirrors at different positions through multiple complex reference transmission, has low adjusting precision, is complex to operate and the like, can realize the adjustment of reflecting mirrors at different positions by utilizing a single theodolite, and has the advantages of high adjusting precision, simplicity and convenience in operation, wide application range and the like.
The invention provides a kude optical path reverse adjustment method, a tool used in the adjustment method comprises a two-axis turntable and a theodolite, wherein the two-axis turntable comprises a base, an azimuth frame and a pitching frame, the pitching frame and the base are arranged on two sides of the azimuth frame, the pitching frame is arranged on the azimuth frame through a pitching rotating shaft, the azimuth frame is arranged on the base through an azimuth rotating shaft, the pitching rotating shaft is vertical to the azimuth rotating shaft, and the kude optical path reverse adjustment method specifically comprises the following steps:
s1, an emergent optical axis reference mirror is arranged on an emergent reference mounting surface of a pitching frame, a pitching axis reference mirror is arranged on the pitching frame, a pitching axis passes through a mirror surface of the pitching axis reference mirror, and a pitching axis is calibrated through a theodolite and the pitching axis reference mirror.
S2, keeping the position of the theodolite motionless, removing a pitching axis reference mirror, mounting a first reflecting mirror on a pitching frame, enabling a pitching axis to pass through the center of the first reflecting mirror, and adjusting the inclination angle of the first reflecting mirror to enable an auto-collimation image of the theodolite to be positioned at the center of a reticle.
S3, installing the azimuth axis reference mirror on the azimuth frame, enabling the azimuth axis to pass through the mirror surface of the azimuth axis reference mirror, and calibrating the azimuth axis through the azimuth axis reference mirror and the theodolite.
S4, keeping the position of the theodolite still, removing the azimuth axis reference mirror, fixing the third reflecting mirror and the fourth reflecting mirror on the azimuth frame, installing the second reflecting mirror on the azimuth frame, and adjusting the inclination angle of the second reflecting mirror to enable the auto-collimation image of the theodolite to be positioned at the center of the reticle.
S5, the optical terminal is mounted on an incidence reference mounting surface of the base, an incidence optical axis reference mirror is mounted on the optical terminal, the optical terminal is coaxial with the incidence optical axis reference mirror, the theodolite is aligned with the incidence optical axis reference mirror, and an auto-collimation image of the theodolite is located in the center of the reticle.
S6, maintaining the position of the theodolite still, removing the optical terminal, mounting a fifth reflecting mirror on the base, positioning the fifth reflecting mirror on the azimuth axis, and adjusting the inclination angle of the fifth reflecting mirror to enable the auto-collimation image of the theodolite to be positioned at the center of the reticle.
S7, reinstalling the optical terminal on the incidence reference installation surface.
Preferably, the first reflecting mirror, the second reflecting mirror, the pitching axis reference mirror, the azimuth axis reference mirror and the fifth reflecting mirror are correspondingly arranged on the base, the azimuth frame and the pitching frame through angle adjusting tools.
Preferably, the outgoing optical axis reference mirror, the third reflecting mirror, the fourth reflecting mirror and the optical terminal are respectively mounted on the base, the azimuth frame and the pitching frame through mechanical positioning references.
Preferably, in step S1, the calibration method of the pitch axis is as follows: and (3) aligning the theodolite with the pitch axis reference mirror, placing the autocollimation image of the theodolite in the central peripheral area of the reticle, changing the inclination angle of the pitch axis reference mirror through an angle adjustment tool, rotating the pitch frame until the autocollimation image of the theodolite is kept motionless in the rotating process of the pitch frame, and adjusting the theodolite to enable the autocollimation image of the theodolite to be positioned in the center of the reticle.
Preferably, in step S3, the calibration method of the azimuth axis is as follows: and (3) placing the theodolite aiming at the azimuth axis reference mirror, positioning an auto-collimation image of the theodolite in the central peripheral area of the reticle, changing the inclination angle of the azimuth axis reference mirror through an angle adjustment tool, rotating the azimuth frame until the auto-collimation image of the theodolite is kept motionless in the rotating process of the azimuth frame, and adjusting the theodolite to position the auto-collimation image of the theodolite in the center of the reticle.
Preferably, the optical terminal is a laser emitting system, an optical imaging lens group or a detector.
Compared with the prior art, the invention has the following beneficial effects:
(1) The kude light path reverse adjustment method provided by the invention only needs to adjust three reflectors in the adjustment process, does not need to dynamically adjust the azimuth axis and the pitching axis in the adjustment process of the reflectors, and has the advantages of simple and convenient operation and high adjustment efficiency.
(2) According to the kude optical path reverse adjustment method, only one theodolite is needed to be used for calibrating the pitching axis, the azimuth axis and the incident optical axis of the optical terminal in sequence in the adjustment process, the reflecting mirror directly carries out reverse sequential adjustment by taking the auto-collimation image of the theodolite as a reference, reference transmission is not needed, error sources are reduced, and the adjustment precision is high.
(3) The adjustment method provided by the invention can complete the full-system optical axis calibration of the emergent optical axis of the optical system and the incident optical axis of the optical terminal while completing the adjustment of the optical path reflector of the kude optical system, and the auto-collimation optical path of the theodolite is completely the same as the actual optical beam path of the optical system, so that the adjustment state of the optical system is ensured to be consistent with the actual use condition, no additional error exists, and the adjustment precision of the optical system is improved.
Drawings
FIG. 1 is a schematic diagram of a structure of a Cook optical path provided according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for reverse adjustment of a kude optical path according to an embodiment of the present invention;
fig. 3 to fig. 8 are schematic views of an adjustment manner of each adjustment stage in the kude optical path reverse adjustment method according to the embodiment of the present invention.
Reference numerals: a first mirror 1, a second mirror 2, a third mirror 3, a fourth mirror 4, a fifth mirror 5, an optical terminal 6, a two-axis turntable 7, a base 7-1, an azimuth frame 7-2, a pitch frame 7-3, an azimuth axis 7-2-1, a pitch axis 7-3-1, an exit optical axis reference mirror 8, a pitch axis reference mirror 9, a theodolite 10, an azimuth axis reference mirror 11, and an incident optical axis reference mirror 12.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
The invention provides a kude light path reverse adjustment method, which is used for realizing adjustment of light beams emitted by an optical terminal through a two-axis turntable and a theodolite, wherein the two-axis turntable comprises a base, an azimuth frame and a pitching frame, the pitching frame and the base are arranged on two sides of the azimuth frame, the pitching frame is arranged on the azimuth frame through a pitching axis, the azimuth frame is arranged on the base through an azimuth rotating shaft, and the pitching rotating shaft is perpendicular to the azimuth rotating shaft.
Referring to the structure of the kude optical path shown in fig. 1, the kude optical path is formed by optical paths sequentially incident on the fifth mirror 5, the fourth mirror 4, the third mirror 3, the second mirror 2, and the first mirror 1 from the optical terminal 6.
The kude optical path comprises five plane mirrors and an optical terminal 6, wherein the five plane mirrors sequentially comprise a first mirror 1, a second mirror 2, a third mirror 3, a fourth mirror 4, a fifth mirror 5 and the optical terminal 6 from a light beam outlet to an inlet, the second mirror 2, the third mirror 3 and the fourth mirror 4 are arranged on an azimuth frame 7-2 and rotate relative to the base 7-1 along with the azimuth frame 7-2 around an azimuth rotating shaft. The first mirror 1 is mounted on the pitch frame 7-3 for rotation with the pitch frame 7-3 about the pitch axis of rotation relative to the azimuth frame 7-2, while the pitch frame 7-3 integrally rotates with the azimuth frame 7-2 about the azimuth axis of rotation. The first reflecting mirror 1, the second reflecting mirror 2, the third reflecting mirror 3 and the fourth reflecting mirror 4 are driven to rotate through the rotation azimuth frame 7-2 and the pitching frame 7-3, and light beams emitted by the optical terminal 6 can be emitted to a designated direction after being deflected by five reflecting mirrors in a kude light path, so that the precise control of light beam pointing is realized.
Fig. 2 shows a flow of a kude optical path reverse adjustment method according to an embodiment of the present invention.
As shown in fig. 2, in order to facilitate understanding of the adjustment process of the kude optical path reverse adjustment method, the kude optical path reverse adjustment method is described by referring to the adjustment modes of each adjustment stage in the kude optical path reverse adjustment method provided by the embodiment of the present invention shown in fig. 3 to 8, and the kude optical path reverse adjustment method provided by the embodiment of the present invention specifically includes the following steps:
s1, an emergent optical axis reference mirror 8 is installed on an emergent reference installation surface of a pitching frame 7-3, a pitching axis reference mirror 9 is installed on the pitching frame 7-3, a pitching axis 7-3-1 passes through the mirror surface of the pitching axis reference mirror 9, and the pitching axis 7-3-1 is calibrated through a theodolite 10 and the pitching axis reference mirror 9.
In the step S1, the calibration method of the pitching axis 7-3-1 comprises the following steps: the theodolite 10 is aligned to the pitch axis reference mirror 9, the auto-collimation image of the theodolite 10 is located in the central peripheral area of the reticle, the inclination angle of the pitch axis reference mirror 9 is changed through an angle adjustment tool, the pitch frame 7-3 is rotated until the auto-collimation image of the theodolite 10 is kept motionless in the rotation process of the pitch frame 7-3, and the theodolite 10 is adjusted to enable the auto-collimation image of the theodolite 10 to be located in the center of the reticle.
The outgoing reference mounting surface is perpendicular to the outgoing light beam.
S2, keeping the position of the theodolite 10 still, removing the pitch axis reference mirror 9, mounting the first reflecting mirror 1 on the pitch frame 7-3, enabling the pitch axis 7-3-1 to pass through the center of the first reflecting mirror 1, and adjusting the inclination angle of the first reflecting mirror 1 to enable the auto-collimation image of the theodolite 10 to be positioned at the center of the reticle.
S3, mounting the azimuth axis reference mirror 11 on the azimuth frame 7-2, enabling the azimuth axis 7-2-1 to pass through the mirror surface of the azimuth axis reference mirror 11, and calibrating the azimuth axis 7-2-1 through the azimuth axis reference mirror 11 and the theodolite 10.
In step S3, the calibration method of the azimuth axis 7-2-1 comprises the following steps: the theodolite 10 is aligned to the azimuth axis reference mirror 11, the auto-collimation image of the theodolite 10 is located in the central peripheral area of the reticle, the inclination angle of the azimuth axis reference mirror 11 is changed through the angle adjustment tool, the azimuth frame 7-2 is rotated until the auto-collimation image of the theodolite 10 is kept motionless in the rotation process of the azimuth frame 7-2, and the theodolite 10 is adjusted so that the auto-collimation image of the theodolite 10 is located in the center of the reticle.
S4, keeping the position of the theodolite 10 still, removing the azimuth axis reference mirror 11, fixing the third reflecting mirror 3 and the fourth reflecting mirror 4 on the azimuth frame 7-2, installing the second reflecting mirror 2 on the azimuth frame 7-2, and adjusting the inclination angle of the second reflecting mirror 2 to enable the auto-collimation image of the theodolite 10 to be positioned at the center of the reticle.
S5, the optical terminal 6 is mounted on an incidence reference mounting surface of the base 7-1, an incidence optical axis reference mirror 12 is mounted on the optical terminal 6, the optical terminal 6 is coaxial with the incidence optical axis reference mirror 12, the theodolite 10 is aligned with the incidence optical axis reference mirror 12, and an auto-collimation image of the theodolite 10 is located at the center of the reticle.
S6, keeping the position of the theodolite 10 still, removing the optical terminal 6, mounting the fifth reflecting mirror 5 on the base 7-1, positioning the fifth reflecting mirror 5 on the azimuth axis 7-2-1, and adjusting the inclination angle of the fifth reflecting mirror 5 to enable the auto-collimation image of the theodolite 10 to be positioned at the center of the reticle.
S7, the optical terminal 6 is remounted on the incidence reference mounting surface.
The optical terminal 6 is a laser emitting system, an optical imaging lens group or a detector.
Since in both step S5 and step S7, the optical terminal 6 is mounted on the incident reference mounting surface by the mechanical positioning reference, and the auto-collimation image of the theodolite 10 at this time should be located at the center of the reticle, that is, the optical axis of the optical terminal 6 coincides with the incident optical axis of the kude optical path.
The mechanical positioning reference can be designed according to the optical axis pointing requirement of the optical system and the installation interface requirement of each reference mirror.
The first reflecting mirror 1, the second reflecting mirror 2, the pitching axis reference mirror 9, the azimuth axis reference mirror 11 and the fifth reflecting mirror 5 are correspondingly arranged on the base 7-1, the azimuth frame 7-2 and the pitching frame 7-3 through angle adjusting tools.
The outgoing optical axis reference mirror 8, the third reflecting mirror 3, the fourth reflecting mirror 4 and the optical terminal 6 are respectively mounted on the base 7-1, the azimuth frame 7-2 and the pitch frame 7-3 by mechanical positioning references.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (6)
1. The tool used in the method comprises a two-axis turntable and a theodolite, wherein the two-axis turntable comprises a base, an azimuth frame and a pitching frame, the pitching frame and the base are arranged on two sides of the azimuth frame, the pitching frame is installed on the azimuth frame through a pitching rotating shaft, the azimuth frame is installed on the base through an azimuth rotating shaft, and the pitching rotating shaft is perpendicular to the azimuth rotating shaft, and the method is characterized by comprising the following steps of:
s1, mounting an emergent optical axis reference mirror on an emergent reference mounting surface of a pitching frame, mounting a pitching axis reference mirror on the pitching frame, enabling the pitching axis to pass through a mirror surface of the pitching axis reference mirror, and calibrating a pitching axis through the theodolite and the pitching axis reference mirror;
s2, keeping the position of the theodolite stationary, removing the pitch axis reference mirror, mounting the first reflecting mirror on the pitch frame, enabling the pitch axis to pass through the center of the first reflecting mirror, and adjusting the inclination angle of the first reflecting mirror to enable the auto-collimation image of the theodolite to be positioned at the center of the reticle;
s3, installing an azimuth axis reference mirror on the azimuth frame, enabling the azimuth axis to pass through the mirror surface of the azimuth axis reference mirror, and calibrating the azimuth axis through the azimuth axis reference mirror and the theodolite;
s4, keeping the position of the theodolite stationary, removing the azimuth axis reference mirror, fixing the third reflecting mirror and the fourth reflecting mirror on the azimuth frame, installing the second reflecting mirror on the azimuth frame, and adjusting the inclination angle of the second reflecting mirror to enable the auto-collimation image of the theodolite to be positioned in the center of the reticle;
s5, the optical terminal is mounted on an incidence reference mounting surface of the base, an incidence optical axis reference mirror is mounted on the optical terminal, the optical terminal is coaxial with the incidence optical axis reference mirror, the theodolite is aligned to the incidence optical axis reference mirror, and an auto-collimation image of the theodolite is located in the center of the reticle;
s6, keeping the position of the theodolite stationary, removing the optical terminal, mounting the fifth reflecting mirror on the base, positioning the fifth reflecting mirror on the azimuth axis, and adjusting the inclination angle of the fifth reflecting mirror to enable the auto-collimation image of the theodolite to be positioned at the center of the reticle;
s7, reinstalling the optical terminal on the incidence reference installation surface.
2. The kude optical path reverse adjustment method according to claim 1, wherein the first reflecting mirror, the second reflecting mirror, the pitch axis reference mirror, the azimuth axis reference mirror and the fifth reflecting mirror are respectively mounted on the base, the azimuth frame and the pitch frame through angle adjustment tools.
3. The kude optical path reverse adjustment method according to claim 1, wherein the outgoing optical axis reference mirror, the third reflecting mirror, the fourth reflecting mirror and the optical terminal are respectively mounted on the base, the azimuth frame and the pitch frame by mechanical positioning references.
4. The kude optical path reverse direction adjustment method according to claim 2, wherein in the step S1, the pitch axis calibration method is as follows: and aligning the theodolite with the pitching axis reference mirror, placing the theodolite, positioning an auto-collimation image of the theodolite in the central peripheral area of the reticle, changing the inclination angle of the pitching axis reference mirror by adjusting the angle adjusting tool, rotating the pitching frame until the auto-collimation image of the theodolite is kept motionless in the rotating process of the pitching frame, and adjusting the theodolite to position the auto-collimation image of the theodolite in the center of the reticle.
5. The kude optical path reverse direction adjustment method according to claim 2, wherein in the step S3, the calibration method of the azimuth axis is as follows: and placing the theodolite in alignment with the azimuth axis reference mirror, positioning an auto-collimation image of the theodolite in the central peripheral area of the reticle, changing the inclination angle of the azimuth axis reference mirror by adjusting the angle adjusting tool, rotating the azimuth frame until the auto-collimation image of the theodolite is kept motionless in the rotating process of the azimuth frame, and adjusting the theodolite to position the auto-collimation image of the theodolite in the center of the reticle.
6. The method of claim 1, wherein the optical terminal is a laser emission system, an optical imaging lens group, or a detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311288276.XA CN117331235A (en) | 2023-10-07 | 2023-10-07 | Reverse adjustment method for kude optical path |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311288276.XA CN117331235A (en) | 2023-10-07 | 2023-10-07 | Reverse adjustment method for kude optical path |
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| CN117331235A true CN117331235A (en) | 2024-01-02 |
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| CN202311288276.XA Pending CN117331235A (en) | 2023-10-07 | 2023-10-07 | Reverse adjustment method for kude optical path |
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| CN (1) | CN117331235A (en) |
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- 2023-10-07 CN CN202311288276.XA patent/CN117331235A/en active Pending
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