CN112285944A - Adjusting device and adjusting method for light splitting prism of light machine - Google Patents
Adjusting device and adjusting method for light splitting prism of light machine Download PDFInfo
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- CN112285944A CN112285944A CN202011184046.5A CN202011184046A CN112285944A CN 112285944 A CN112285944 A CN 112285944A CN 202011184046 A CN202011184046 A CN 202011184046A CN 112285944 A CN112285944 A CN 112285944A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 199
- 230000004069 differentiation Effects 0.000 claims abstract description 46
- 239000000835 fiber Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- 238000003384 imaging method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
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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
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- 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
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
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- Optics & Photonics (AREA)
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Abstract
The invention belongs to the technical field of installation and adjustment of an airborne optical machine, and particularly relates to an installation and adjustment device and an installation and adjustment method of a beam splitter prism of an optical machine; the assembling and adjusting device comprises an internal focusing auto-collimation tube, a two-dimensional adjusting device, an optical machine assembling and adjusting platform, a main optical axis cross differentiation plate, an auxiliary optical axis cross differentiation plate and an optical machine supporting tool; the assembling and adjusting equipment and the assembling and adjusting method provided by the invention can ensure that the consistency precision of the optical axis is high after the beam splitter prism is assembled and adjusted, ensure that the imaging of the system is stable, meet the design requirements of various optical indexes, and solve the problem of optical axis deviation caused by the fact that a double optical path passes through the beam splitter prism.
Description
Technical Field
The invention belongs to the technical field of installation and adjustment of an airborne optical machine, and particularly relates to an installation and adjustment device and an installation and adjustment method of a beam splitter prism of an optical machine.
Background
The optical axis of the head-up display consists of a primary optical axis and a standby optical axis. The optical system with the structure is stable, and in a severe condition, when no detection equipment exists, the optical axis of the standby system can be used as the basis for detecting the main optical axis. Therefore, before the product leaves the factory, the consistency of the main optical axis and the standby optical axis is ensured, which becomes an important link of the installation and adjustment of the optical-mechanical system, and when the main optical axis and the standby optical axis pass through the beam splitter prism, the optical axes are unified, so that the consistency of the main optical axis and the standby optical axis can be ensured through the precise installation and adjustment of the beam splitter prism.
Disclosure of Invention
In view of the above, the present invention provides an assembling and adjusting apparatus and an assembling and adjusting method for an optical splitter prism, so that the consistency and the accuracy of an optical axis after the optical splitter prism is assembled and adjusted are high, stable system imaging can be ensured, various optical indexes meet design requirements, and the problem of optical axis deviation caused by a double optical path passing through the optical splitter prism is solved.
In order to achieve the technical purpose, the invention adopts the following specific technical scheme:
an assembling and adjusting device for a light splitting prism of a light machine comprises a shell, a main optical axis outlet, an auxiliary optical axis outlet and the light splitting prism, wherein the main optical axis outlet and the auxiliary optical axis outlet are arranged on the shell, and the light splitting prism is arranged in the shell; the method comprises the following steps:
the system comprises an internal focusing auto-collimation light pipe, a two-dimensional adjusting device, a light machine adjusting platform, a main optical axis cross differentiation plate, an auxiliary optical axis cross differentiation plate and a light machine supporting tool;
the two-dimensional adjusting device is arranged on the optical machine adjusting platform and used for adjusting the relative position of the internal focusing auto-collimation light pipe and the optical machine supporting tool;
the main optical axis cross-shaped differentiation plate is arranged on a main optical axis outlet of the optical machine;
the secondary optical axis cross-shaped differentiation plate is used for being arranged on a secondary optical axis outlet of the optical machine;
the optical machine supporting tool is movably arranged on the optical machine adjusting platform, is used for fixedly arranging the optical machine through a main optical axis outlet of the optical machine, and is used for adjusting the relative position of the optical machine and the optical machine adjusting platform;
the internal focusing auto-collimation light pipe is arranged on the two-dimensional adjusting device and used for enabling the main optical axis of the internal focusing auto-collimation light pipe to coincide with the optical axis center of the main optical axis cross-shaped differentiation plate arranged on the optical machine based on the adjustment of the dimensional adjusting device.
Furthermore, the two-dimensional adjusting device comprises a light pipe mounting seat, an adjusting flat plate and an adjusting screw hole; the light pipe mounting seat is fixedly arranged with the adjusting flat plate and is used for fixedly mounting the auto-collimation light pipe; the adjusting screw hole is formed in the adjusting flat plate, and the axial direction of the adjusting screw hole is perpendicular to the optical machine adjusting platform and used for installing an adjusting bolt.
Further, the optical machine adjusting platform comprises an optical machine mounting seat, an adjusting flat plate and an adjusting screw hole; the optical machine mounting seat is fixedly arranged with the adjusting flat plate and is used for fixedly mounting the auto-collimation optical machine; the assembly and adjustment screw hole is formed in the assembly and adjustment flat plate, and the axial direction of the assembly and adjustment screw hole is perpendicular to the optical machine assembly and adjustment platform and used for installing an assembly and adjustment bolt.
Further, the auto-collimation light pipe is an internal focusing auto-collimation light pipe.
Further, the invention also provides an assembling and adjusting method of the optical machine beam splitting prism based on the assembling and adjusting device, which is characterized by comprising the following steps:
1) adjusting the mechanical axes of the beam splitter prism and the beam splitter prism frame to be coaxial, and encapsulating the lens group;
2) mounting the optical machine support tool on the optical machine adjusting platform, and fixing the optical machine shell on the optical machine support tool;
3) installing the main optical axis cross-shaped differentiation plate at the mounting position of the beam splitter prism lens group of the shell, lighting the main optical axis cross-shaped differentiation plate, adjusting the relative position of the internal focusing auto-collimation tube and the optical mechanical part by taking the internal focusing auto-collimation tube as a reference, and adjusting the focal length of the internal focusing auto-collimation tube to enable cross fibers of the main optical axis cross-shaped differentiation plate to form images in the internal focusing auto-collimation tube and coincide with the auto-collimation images of the internal focusing auto-collimation tube; recording the focal length value of the internal focusing light pipe at the moment, and recording as f 1; fixing the positions of the optical shell and the photoelectric autocollimator; locking the positions of the inner focusing auto-collimation tube and the shell;
4) and mounting the auxiliary optical axis cross differentiation plate at the auxiliary optical axis outlet, adjusting the focal length of the inner focusing auto-collimation tube to a theoretical position f2(f2 is f1-H) by calculating the focal length difference H between the main optical axis cross differentiation plate and the auxiliary optical axis cross differentiation plate, lighting the auxiliary optical axis differentiation plate, rotationally adjusting the auxiliary optical axis outlet until the cross wire of the auxiliary optical axis cross differentiation plate has a clear division image in the inner focusing auto-collimation tube, then adjusting the inner focusing auto-collimation tube to parallel light, observing the auto-collimation image, slightly rotating the auxiliary optical axis outlet to enable the auto-collimation image to coincide with the inner focusing auto-collimation tube differentiation plate, locking the auxiliary optical axis outlet, and completing assembly and adjustment.
Further, in the step 4), the method for locking the secondary optical axis outlet is to fix the secondary optical axis outlet by pinning.
By adopting the technical means, the invention can also bring the following beneficial effects:
the adjusting method is simple, easy to operate, time-saving and labor-saving. In the traditional method, an optical axis is transferred to be coaxial with a mechanical axis, and the assembly and adjustment precision is ensured completely by depending on the machining precision of mechanical parts. Compared with the traditional assembly and adjustment method, the beam splitting prism assembled and adjusted by the method has the advantages that the optical axis is rotationally moved to the inner focusing light pipe, the main optical axis and the standby optical axis are adjusted to the optical axis of the inner focusing light pipe through the beam splitting prism by means of centering and shaft penetrating, and the assembly and adjustment precision is far higher than that of the traditional method by means of the optical method.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an adjusting apparatus for a beam splitter prism of an optical engine according to an embodiment of the present invention;
wherein, 1, the self-collimating light tube of inner focusing; 2. a two-dimensional adjusting device; 3. a light machine adjusting platform; 4. a housing; 5. a secondary optical axis cross differentiation plate; 6. a main optical axis cross differentiation plate; 7. ray apparatus supports frock.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in practical implementation, and the type, quantity and proportion of the components in practical implementation can be changed freely, and the layout of the components can be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
In an embodiment of the present invention, an assembling and adjusting device for a light splitting prism of an optical machine is provided, the optical machine includes a housing 4, a primary optical axis outlet, a secondary optical axis outlet and a light splitting prism, the primary optical axis outlet and the secondary optical axis outlet are disposed on the housing 4, and the light splitting prism is installed in the housing 4; the method comprises the following steps:
the device comprises an internal focusing auto-collimation light pipe 1, a two-dimensional adjusting device 2, a light machine installation and adjustment platform 3, a main optical axis cross differentiation plate 6, an auxiliary optical axis cross differentiation plate 5 and a light machine supporting tool 7;
the two-dimensional adjusting device 2 is arranged on the optical machine adjusting platform 3 and used for adjusting the relative position of the internal focusing auto-collimation light pipe 1 and the optical machine supporting tool 7;
the main optical axis cross-shaped differentiation plate 6 is used for being arranged on a main optical axis outlet of the optical machine;
the secondary optical axis cross differentiation plate 5 is used for being arranged on a secondary optical axis outlet of the optical machine;
the optical machine supporting tool 7 is movably arranged on the optical machine adjusting platform 3, is used for fixedly arranging the optical machine through a main optical axis outlet of the optical machine and is used for adjusting the relative position of the optical machine and the optical machine adjusting platform 3;
the internal focusing auto-collimation light pipe 1 is arranged on the two-dimensional adjusting device 2 and is used for enabling the main optical axis of the internal focusing auto-collimation light pipe to coincide with the optical axis center of a main optical axis cross-shaped differentiation plate 6 arranged on the optical machine based on the adjustment of the dimensional adjusting device.
In the present embodiment, the two-dimensional adjusting device 2 comprises a light pipe mounting seat, an adjusting flat plate and an adjusting screw hole; the light pipe mounting seat is fixedly arranged with the adjusting flat plate and is used for fixedly mounting the auto-collimation light pipe; the adjusting screw hole is arranged on the adjusting flat plate, and the axial direction of the adjusting screw hole is perpendicular to the optical machine adjusting platform 3 and used for installing an adjusting bolt.
In this embodiment, the optical engine adjusting platform 3 includes an optical engine mounting seat, an adjusting plate and an adjusting screw hole; the optical machine mounting seat is fixedly arranged with the installation and adjustment flat plate and is used for fixedly mounting the auto-collimation optical machine; the adjusting screw hole is arranged on the adjusting flat plate, and the axial direction of the adjusting screw hole is perpendicular to the optical machine adjusting platform 3 and used for installing an adjusting bolt.
In the present embodiment, the autocollimation light pipe is an internally focusing autocollimation light pipe 1.
In an embodiment, the present invention further provides an adjusting method of an optical splitting prism based on the adjusting device, which is characterized by comprising the following steps:
1) adjusting the mechanical axes of the beam splitter prism and the beam splitter prism frame to be coaxial, and encapsulating the lens group;
2) installing the optical machine support tool 7 on the optical machine adjusting platform 3, and fixing the optical machine shell 4 on the optical machine support tool 7;
3) a main optical axis cross differentiation plate 6 is arranged at the mounting position of the beam splitter prism lens group of the shell 4, the main optical axis cross differentiation plate 6 is lightened, the internal focusing auto-collimation light pipe 1 is taken as a reference, the relative position of the internal focusing auto-collimation light pipe 1 and an optical mechanical part is adjusted, the focal length of the internal focusing light pipe is adjusted, and cross hairs of the main optical axis cross differentiation plate 6 are imaged in the internal focusing light pipe and are superposed with an auto-collimation image of the internal focusing auto-collimation light pipe 1; recording the focal length value of the internal focusing light pipe at the moment, and recording as f 1; fixing the position of the optical shell 4 and the photoelectric autocollimator; locking the positions of the internal focusing auto-collimation light pipe 1 and the shell 4;
4) the method comprises the steps of installing an auxiliary optical axis cross differentiation plate 5 at an auxiliary optical axis outlet, adjusting the focal length of an inner focusing auto-collimation light pipe 1 to a theoretical position f2(f2 is f1-H) by calculating the focal length difference H between a main optical axis cross differentiation plate 6 and the auxiliary optical axis cross differentiation plate 5, lightening the auxiliary optical axis differentiation plate, rotatably adjusting the auxiliary optical axis outlet until cross threads of the auxiliary optical axis cross differentiation plate 5 have clear division images in the inner focusing auto-collimation light pipe 1, then adjusting the inner focusing auto-collimation light pipe 1 to parallel light, observing the auto-collimation images, obviously distinguishing bright and powerful reflection images of the differentiation plate 2 due to weak surface reflection images of a light splitting prism coated antireflection film, and slightly rotating the auxiliary optical axis outlet to enable the auto-collimation images to be superposed with the inner focusing auto-collimation images. The alternate optical axis reference is now coaxial with the inner focusing light pipe. I.e. the main optical axis coincides with the alternative optical axis. And locking the secondary optical axis outlet, and completing the assembly and adjustment.
In this embodiment, in step 4), the secondary optical axis exit is locked by pinning.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An assembling and adjusting device for a light splitting prism of a light machine comprises a shell, a main optical axis outlet, an auxiliary optical axis outlet and the light splitting prism, wherein the main optical axis outlet and the auxiliary optical axis outlet are arranged on the shell, and the light splitting prism is arranged in the shell; it is characterized by comprising:
the system comprises an internal focusing auto-collimation light pipe, a two-dimensional adjusting device, a light machine adjusting platform, a main optical axis cross differentiation plate, an auxiliary optical axis cross differentiation plate and a light machine supporting tool;
the two-dimensional adjusting device is arranged on the optical machine adjusting platform and used for adjusting the relative position of the internal focusing auto-collimation light pipe and the optical machine supporting tool;
the main optical axis cross-shaped differentiation plate is arranged on a main optical axis outlet of the optical machine;
the secondary optical axis cross-shaped differentiation plate is used for being arranged on a secondary optical axis outlet of the optical machine;
the optical machine supporting tool is movably arranged on the optical machine adjusting platform, is used for fixedly arranging the optical machine through a main optical axis outlet of the optical machine, and is used for adjusting the relative position of the optical machine and the optical machine adjusting platform;
the internal focusing auto-collimation light pipe is arranged on the two-dimensional adjusting device and used for enabling the main optical axis of the internal focusing auto-collimation light pipe to coincide with the optical axis center of the main optical axis cross-shaped differentiation plate arranged on the optical machine based on the adjustment of the dimensional adjusting device.
2. The fitting device according to claim 1, characterized in that: the two-dimensional adjusting device comprises a light pipe mounting seat, an adjusting flat plate and an adjusting screw hole; the light pipe mounting seat is fixedly arranged with the adjusting flat plate and is used for fixedly mounting the auto-collimation light pipe; the adjusting screw hole is formed in the adjusting flat plate, and the axial direction of the adjusting screw hole is perpendicular to the optical machine adjusting platform and used for installing an adjusting bolt.
3. The fitting device according to claim 1, characterized in that: the optical machine adjusting platform comprises an optical machine mounting seat, an adjusting flat plate and an adjusting screw hole; the optical machine mounting seat is fixedly arranged with the adjusting flat plate and is used for fixedly mounting the auto-collimation optical machine; the assembly and adjustment screw hole is formed in the assembly and adjustment flat plate, and the axial direction of the assembly and adjustment screw hole is perpendicular to the optical machine assembly and adjustment platform and used for installing an assembly and adjustment bolt.
4. The fitting device according to claim 1, characterized in that: the auto-collimation light pipe is an internal focusing auto-collimation light pipe.
5. The method for adjusting the optical-mechanical beam splitter prism based on the adjusting device according to any one of claims 1 to 4, comprising the following steps:
1) adjusting the mechanical axes of the beam splitter prism and the beam splitter prism frame to be coaxial, and encapsulating the lens group;
2) mounting the optical machine support tool on the optical machine adjusting platform, and fixing the optical machine shell on the optical machine support tool;
3) installing the main optical axis cross-shaped differentiation plate at the mounting position of the beam splitter prism lens group of the shell, lighting the main optical axis cross-shaped differentiation plate, adjusting the relative position of the internal focusing auto-collimation tube and the optical mechanical part by taking the internal focusing auto-collimation tube as a reference, and adjusting the focal length of the internal focusing auto-collimation tube to enable cross fibers of the main optical axis cross-shaped differentiation plate to form images in the internal focusing auto-collimation tube and coincide with the auto-collimation images of the internal focusing auto-collimation tube; recording the focal length value of the internal focusing light pipe at the moment, and recording as f 1; fixing the positions of the optical shell and the photoelectric autocollimator; locking the positions of the inner focusing auto-collimation tube and the shell;
4) and mounting the auxiliary optical axis cross differentiation plate at the auxiliary optical axis outlet, adjusting the focal length of the inner focusing auto-collimation tube to a theoretical position f2(f2 is f1-H) by calculating the focal length difference H between the main optical axis cross differentiation plate and the auxiliary optical axis cross differentiation plate, lighting the auxiliary optical axis differentiation plate, rotationally adjusting the auxiliary optical axis outlet until the cross wire of the auxiliary optical axis cross differentiation plate has a clear division image in the inner focusing auto-collimation tube, then adjusting the inner focusing auto-collimation tube to parallel light, observing the auto-collimation image, slightly rotating the auxiliary optical axis outlet to enable the auto-collimation image to coincide with the inner focusing auto-collimation tube differentiation plate, locking the auxiliary optical axis outlet, and completing assembly and adjustment.
6. The method of claim 5, wherein the method further comprises: in the step 4), the auxiliary optical axis outlet is locked by pinning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184046.5A CN112285944A (en) | 2020-10-29 | 2020-10-29 | Adjusting device and adjusting method for light splitting prism of light machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184046.5A CN112285944A (en) | 2020-10-29 | 2020-10-29 | Adjusting device and adjusting method for light splitting prism of light machine |
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| CN112285944A true CN112285944A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011184046.5A Pending CN112285944A (en) | 2020-10-29 | 2020-10-29 | Adjusting device and adjusting method for light splitting prism of light machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946859A (en) * | 2021-04-08 | 2021-06-11 | 云南北方光电仪器有限公司 | Calibration device and calibration method for right-angle prism |
| CN116990982A (en) * | 2023-09-26 | 2023-11-03 | 中国科学院长春光学精密机械与物理研究所 | Space optical transmission device for laser communication and adjustment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106526881A (en) * | 2016-12-16 | 2017-03-22 | 中国航空工业集团公司洛阳电光设备研究所 | Adjustment method for parallelism of linear guide rail in continuous zooming thermal imaging instrument |
| CN106773099A (en) * | 2016-12-09 | 2017-05-31 | 中国航空工业集团公司洛阳电光设备研究所 | The graticle frock and assembly method of same shaft detection and assembling for two bearings seat |
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2020
- 2020-10-29 CN CN202011184046.5A patent/CN112285944A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773099A (en) * | 2016-12-09 | 2017-05-31 | 中国航空工业集团公司洛阳电光设备研究所 | The graticle frock and assembly method of same shaft detection and assembling for two bearings seat |
| CN106526881A (en) * | 2016-12-16 | 2017-03-22 | 中国航空工业集团公司洛阳电光设备研究所 | Adjustment method for parallelism of linear guide rail in continuous zooming thermal imaging instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946859A (en) * | 2021-04-08 | 2021-06-11 | 云南北方光电仪器有限公司 | Calibration device and calibration method for right-angle prism |
| CN116990982A (en) * | 2023-09-26 | 2023-11-03 | 中国科学院长春光学精密机械与物理研究所 | Space optical transmission device for laser communication and adjustment method |
| CN116990982B (en) * | 2023-09-26 | 2023-12-15 | 中国科学院长春光学精密机械与物理研究所 | Space optical transmission device for laser communication and adjustment method |
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Application publication date: 20210129 |