CN115657249A - Fixed axis calibrating device for focusing lens and sampling grating - Google Patents
Fixed axis calibrating device for focusing lens and sampling grating Download PDFInfo
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- CN115657249A CN115657249A CN202211389501.4A CN202211389501A CN115657249A CN 115657249 A CN115657249 A CN 115657249A CN 202211389501 A CN202211389501 A CN 202211389501A CN 115657249 A CN115657249 A CN 115657249A
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Abstract
The invention provides a fixed-axis calibration device for a focusing lens and a sampling grating, and relates to the technical field of optics. The fixed-axis calibration device for the focusing lens and the sampling grating comprises a focusing lens assembly, a front fixed-axis cross wire plate, a collimating piece, a focusing piece, a rear fixed-axis cross wire plate, a first fixed-axis piece and a second fixed-axis piece, wherein the front fixed-axis cross wire plate is fixed on the front side of the focusing lens assembly, the rear fixed-axis cross wire plate is fixed on the rear side of the focusing lens assembly, the focusing piece is positioned on one side, away from the focusing lens assembly, of the front fixed-axis cross wire plate, the collimating piece is positioned between the front fixed-axis cross wire plate and the focusing piece, and the first fixed-axis piece and the second fixed-axis piece are positioned in the focusing lens assembly and are suitable for fixing the focusing lens assembly. According to the technical scheme, the focusing lens assembly is subjected to fixed-axis calibration through the collimating component and the focusing component, and the focusing capacity of the focusing lens assembly is effectively improved.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a fixed-axis calibration device for a focusing lens and a sampling grating.
Background
In the single-aperture focusing lens assembly, the optical lens comprises a focusing lens, a phase optical element and a shielding piece, wherein the focusing lens, the phase optical element and the shielding piece are not parallel to each other, and in the optical element, a focus is sensitive to the pose of the optical element, so that the focusing lens, the phase optical element and the shielding piece are not parallel to each other, and the three components have deviation from the theoretical position during actual installation, the formation of the focus can be influenced, and the focusing effect of the focusing lens is finally influenced.
Disclosure of Invention
The invention solves the problem that the deviation of the focusing lens, the phase optical element and the shielding piece from the theoretical position influences the formation of a focus and further influences the focusing.
In order to solve the above problems, the present invention provides a fixed axis calibration apparatus for a focusing lens and a sampling grating, comprising a focusing lens assembly, a front fixed axis fork wire plate, a collimating element, a focusing element, a rear fixed axis fork wire plate, a first fixed axis element and a second fixed axis element, wherein the front fixed axis fork wire plate is fixed on the front side of the focusing lens assembly, the rear fixed axis fork wire plate is fixed on the rear side of the focusing lens assembly, the center of the front fixed axis fork wire plate and the center of the rear fixed axis fork wire plate are adapted to be located on a theoretical optical axis, the focusing element is located on one side of the front fixed axis fork wire plate away from the focusing lens assembly, the objective fork wires of the focusing element are respectively adapted to be coincident with the central fork wires of the front fixed axis fork wire plate and the central fork wires of the rear fixed axis fork wire plate, the collimating element is located between the front fixed axis fork wire plate and the focusing element, the optical axis of the collimating element is adapted to be coincident with the optical axis of the focusing element, and the first fixed axis element and the second fixed axis element are located in the focusing lens assembly and adapted to be aligned with the focusing lens assembly.
According to the fixed-axis calibration device for the focusing lens and the sampling grating, the position of the focusing piece is determined through the front fixed-axis cross filament plate and the rear fixed-axis cross filament plate, the position of the collimating piece is determined through the focusing piece, and then the positions of the first fixed-axis piece and the second fixed-axis piece can be adjusted through the collimating piece, so that the fixed-axis calibration of the focusing lens assembly can be realized, and the focusing capacity of the focusing lens assembly is effectively improved.
Preferably, the fixed-axis calibration device for the focusing lens and the sampling grating further includes a shielding member and a phase optical element which are arranged in the focusing lens assembly, the first fixed-axis member is fixed on the phase optical element and is adapted to be fixed-axis with respect to the phase optical element when the first fixed-axis member and the collimating member are aligned, and the second fixed-axis member is fixed on the shielding member and is adapted to be fixed-axis with respect to the shielding member when the second fixed-axis member and the collimating member are aligned.
The fixed-axis calibration device for the focusing lens and the sampling grating respectively performs fixed-axis calibration on the phase optical element through the first fixed-axis piece and performs fixed-axis calibration on the shielding piece through the second fixed-axis piece, so that the focusing capacity of the focusing lens component is effectively improved.
Preferably, the shielding member comprises two shielding plates parallel to each other.
The fixed-axis calibration device for the focusing lens and the sampling grating provided by the invention provides fragment sputtering protection by arranging the two shielding sheets which are parallel to each other, and provides necessary protection measures for the focusing lens assembly, thereby being beneficial to improving the focusing effect of the focusing lens assembly.
Preferably, the phase optical element is a continuous phase plate.
The fixed-axis calibration device for the focusing lens and the sampling grating adopts the continuous phase plate as the phase optical element, and is beneficial to improving the focusing effect of the focusing lens component.
Preferably, the fixed-axis calibration device for the focusing lens and the sampling grating further comprises a focusing lens arranged in the focusing lens assembly, an optical axis of the focusing lens is suitable for being coincided with the theoretical optical axis, and the focusing lens is a wedge-shaped lens.
The fixed-axis calibration device for the focusing lens and the sampling grating realizes one-dimensional longitudinal focusing through the wedge-shaped lens, focuses clean triple-frequency light on a target point, and is beneficial to improving the focusing effect of the focusing lens component.
Preferably, the fixed-axis calibration device for the focusing lens and the sampling grating further includes a first support, the collimating component is fixed on the first support, the first support is suitable for adjusting the pose of the collimating component and is suitable for fixing the axis of the phase optical element when the first fixed-axis component is aligned with the collimating component, and for fixing the axis of the shielding component when the second fixed-axis component is aligned with the collimating component.
According to the fixed-axis calibration device for the focusing lens and the sampling grating, the pose of the collimating piece is adjusted through the first support, so that the fixed-axis calibration of the collimating piece relative to the phase optical element and the shielding piece is realized, and the focusing capacity of the focusing lens component is effectively improved.
Preferably, the fixed-axis calibration device for the focusing lens and the sampling grating further comprises a second support, the focusing member is fixed on the second support, and the second support is suitable for adjusting the pose of the focusing member and is suitable for using the focusing member as the fixed-axis reference of the focusing lens when the objective lens fork wire of the focusing member is overlapped with the central fork wire of the front fixed-axis fork wire plate and the central fork wire of the rear fixed-axis fork wire plate respectively.
According to the fixed-axis calibration device for the focusing lens and the sampling grating, the position and the posture of the focusing piece are adjusted through the second support, so that the fixed-axis calibration of the focusing lens is realized, and the focusing capacity of the focusing lens component is effectively improved.
Preferably, the collimating element is an electro-optic autocollimator.
According to the fixed-axis calibration device for the focusing lens and the sampling grating, the collimating component is set to be the photoelectric autocollimator, so that the calibration speed and precision are effectively improved, and the focusing effect of the focusing lens component is favorably improved.
Preferably, the focusing member is an internally focusing telescope.
The fixed-axis calibration device for the focusing lens and the sampling grating is beneficial to improving the accuracy of the focusing process by arranging the focusing piece as an internal focusing telescope, thereby being beneficial to improving the focusing effect of the focusing lens component.
Preferably, the first fixed shaft piece and the second fixed shaft piece are tooling wedges.
According to the fixed-axis calibration device for the focusing lens and the sampling grating, the first fixed-axis piece and the second fixed-axis piece are arranged as the tooling wedge blocks, so that the fixed-axis calibration efficiency of the shielding piece and the phase optical element is improved, and the focusing effect of the focusing lens component is improved.
Drawings
FIG. 1 is a schematic diagram of a fixed-axis calibration apparatus for a focusing lens and a sampling grating according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a focusing lens and a sample grating fixed-axis calibration device according to an embodiment of the present invention.
Description of the reference numerals:
1-a focusing lens assembly; 2-front fixed shaft wire-crossing plate; 3-a collimating part; 4-a focusing member; 5-a first scaffold; 6-a second bracket; 7-rear dead axle cross thread plate; 8-a first fixed shaft member; 9-a second fixed shaft; 10-a shield; 11-phase optical elements; 12-focusing lens.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the drawings of the present specification, an XYZ coordinate system is attached, in which X forward represents "left", X reverse represents "right", Y forward represents "front", Y reverse represents "rear", Z forward represents "up", and Z reverse represents "down".
As shown in fig. 1, the present invention provides a fixed axis calibration apparatus for a focusing lens and a sampling grating, including a focusing lens assembly 1, a front fixed axis cross filament plate 2, an alignment member 3, a focusing member 4, a rear fixed axis cross filament plate 7, a first fixed axis member 8 and a second fixed axis member 9, wherein the front fixed axis cross filament plate 2 is fixed on the front side of the focusing lens assembly 1, the rear fixed axis cross filament plate 7 is fixed on the rear side of the focusing lens assembly 1, the center of the front fixed axis cross filament plate 2 and the center of the rear fixed axis cross filament plate 7 are adapted to be located on a theoretical optical axis, the focusing member 4 is located on a side of the front fixed axis cross filament plate 2 away from the focusing lens assembly 1, the objective lens cross filament of the focusing member 4 is adapted to coincide with the center cross filament of the front fixed axis cross filament plate 2 and with the center cross filament of the rear fixed axis cross filament plate 7, the alignment member 3 is located between the front fixed axis cross filament plate 2 and the focusing member 4, the optical axis of the alignment member 3 is adapted to coincide with the optical axis of the front fixed axis cross filament plate 4, and the optical axis of the focusing lens assembly 1 and the second fixed axis member 9 are adapted to be located in the focusing lens assembly 1.
Specifically, in this embodiment, as shown in fig. 1, the fixed axis calibration apparatus for a focusing lens and a sampling grating includes a focusing lens assembly 1, a front fixed axis cross wire plate 2, a collimating member 3, a focusing member 4, a rear fixed axis cross wire plate 7, a first fixed axis member 8, and a second fixed axis member 9, wherein the front fixed axis cross wire plate 2 and the rear fixed axis cross wire plate 7 are respectively fixed on the front side and the rear side of the focusing lens assembly 1, and during fixed axis calibration, the center of the front fixed axis cross wire plate 2 and the center of the rear fixed axis cross wire plate 7 are both located on a theoretical optical axis. Wherein, focusing piece 4 is located the one side that preceding fixed shaft fork silk board 2 kept away from focusing lens subassembly 1, also is the front side of focusing lens subassembly 1, and collimating part 3 is located between preceding fixed shaft fork silk board 2 and focusing piece 4, is the front side of focusing lens subassembly 1 equally, and during the fixed shaft calibration, focusing piece 4 is used for the calibration to focusing lens 12 in focusing lens subassembly 1, embodies: the cross hair at the center of the focusing lens 12 is clearly imaged, the cross hair at the center of the focusing lens 12 is superposed with the cross hair at the center of the objective lens of the focusing part 4, the cross hair on the objective lens of the focusing part 4 is superposed with the cross hair imaged by the focusing part 4 after being reflected by the focusing lens 12, the optical axis of the focusing lens 12 is superposed with the theoretical optical axis at the moment, and the position and the posture of the focusing lens 12 are calibrated. In the case of the alignment, the collimator 3 is used for alignment of the shield 10 and the phase optics 11 in the focussing lens assembly 1. That is, in the present embodiment, the focusing lens assembly 1 is aligned by the alignment member 3 and the focusing member 4, so that the focusing capability of the focusing lens assembly 1 is effectively improved.
In the present embodiment, the three optical elements, i.e., the shielding member 10, the phase optical element 11 and the focusing lens 12, are axially fixed to obtain a better focus image, where "axially fixed" means that there is an error in the optical axis of the optical element and corresponding calibration is required.
Wherein, the cross-shaped cross-hair refers to a special cross-shaped fixed mark on the focal plane of the optical system for determining the sight line direction, the central fork wire of the front fixed shaft fork wire plate 2 or the rear fixed shaft fork wire plate 7 is also provided with a scale fork wire on the finger plate.
The 'the objective lens cross thread of the focusing part 4 is respectively suitable for being superposed with the central cross thread of the front dead axle cross thread plate 2 and the central cross thread of the rear dead axle cross thread plate 7' means that the focal length of the focusing part 4 is adjusted, so that the central cross thread of the front dead axle cross thread plate 2 is clearly imaged within the visual field range of the focusing part 4; the pose of the focusing piece 4 is adjusted through the second support 6, so that the objective lens fork wire of the focusing piece 4 is superposed with the central fork wire of the front fixed shaft fork wire plate 2 in the visual field range of the focusing piece 4, and the primary adjustment of the focusing piece 4 is realized; adjusting the focal length of the focusing piece 4 to enable the central cross thread of the rear dead axle cross thread plate 7 to be imaged clearly within the visual field range of the focusing piece 4; the pose of the focusing element 4 is adjusted by the second support 6, so that the objective lens cross wire of the focusing element 4 is superposed with the central cross wire of the rear dead axle cross wire plate 7 in the visual field range of the focusing element 4, thereby realizing the further adjustment of the focusing element 4, and the optical axis of the focusing element 4 can be used as the optical reference of the focusing lens 12.
In this embodiment, the position of the focusing element is determined by the front fixed shaft fork wire plate and the rear fixed shaft fork wire plate, the position of the collimating element is determined by the focusing element, and then the positions of the first fixed shaft element and the second fixed shaft element can be adjusted by the collimating element, so that the fixed shaft of the focusing lens assembly can be calibrated, and the focusing capacity of the focusing lens assembly is effectively improved.
Optionally, the fixed-axis calibration apparatus for the focusing lens and the sampling grating further includes a shielding member 10 and a phase optical element 11 disposed in the focusing lens assembly 1, the first fixed-axis member 8 is fixed to the phase optical element 11 and is adapted to be fixed-axis with respect to the phase optical element 11 when the first fixed-axis member 8 is aligned with the collimating member 3, and the second fixed-axis member 9 is fixed to the shielding member 10 and is adapted to be fixed-axis with respect to the shielding member 10 when the second fixed-axis member 9 is aligned with the collimating member 3.
Specifically, in this embodiment, as shown in fig. 1 and fig. 2, a shielding member 10, a phase optical element 11, and a focusing lens 12 are disposed in the focusing lens assembly 1, the first fixed shaft member 8 is fixed on the phase optical element 11 and is adapted to be fixed with respect to the phase optical element 11, the second fixed shaft member 9 is fixed on the shielding member 10 and is adapted to be fixed with respect to the shielding member 10, and in the case of fixing with respect to the axis, the collimating member 3 is also used for calibrating the shielding member 10 and the phase optical element 11 in the focusing lens assembly 1, which is specifically embodied as: the postures of the phase optical element 11 and the shielding piece 10 are adjusted, so that the first fixed shaft piece 8 and the second fixed shaft piece 9 are respectively aligned with the collimating piece 3, the fixed shaft calibration of the shielding piece 10 and the phase optical element 11 is completed, and the focusing capacity of the focusing lens component 1 is effectively improved.
In this embodiment, the first fixed axis component is used to calibrate the fixed axis of the optical element, and the second fixed axis component is used to calibrate the fixed axis of the shielding component, so that the focusing capability of the focusing lens assembly 1 is effectively improved.
Optionally, the shielding member 10 comprises two shielding plates parallel to each other.
Specifically, in this embodiment, the shielding member 10 includes two shielding plates parallel to each other, and the shielding plates can provide fragment sputtering protection to prevent fragments generated from the target surface from attaching to the surface of an important optical element during the target shooting process, so in this embodiment, the two shielding plates parallel to each other are provided to provide necessary protection measures for the focusing lens assembly 1, thereby facilitating the improvement of the focusing effect of the focusing lens assembly 1.
In the embodiment, two shielding sheets which are parallel to each other are arranged to provide fragment sputtering protection, and necessary protection measures are provided for the focusing lens assembly, so that the focusing effect of the focusing lens assembly is improved.
Optionally, the phase optical element 11 is a continuous phase plate.
Specifically, in this embodiment, the phase optical element 11 is a continuous phase plate, the continuous phase plate is an optical diffraction element used for controlling the quality of a far-field beam in a large-scale laser device, the Continuous Phase Plate (CPP) has a high energy utilization rate, the shape of a focal spot is easy to control, and the continuous phase plate has a beam shaping function, so that the high-energy laser beam is uniformly smooth, and CPP elements are adopted as active control means for the quality of the laser beam in large-scale laser devices such as U.S. NIF and french LMJ, so that in this embodiment, the continuous phase plate is adopted as the phase optical element 11, which is beneficial to improving the focusing effect of the focusing lens assembly 1.
In this embodiment, the continuous phase plate is used as the phase optical element, which is beneficial to improving the focusing effect of the focusing lens assembly.
Optionally, the fixed-axis calibration apparatus for the focusing lens and the sampling grating further includes a focusing lens 12 disposed in the focusing lens assembly 1, an optical axis of the focusing lens 12 is suitable for being coincident with the theoretical optical axis, and the focusing lens 12 is a wedge-shaped lens.
Specifically, in this embodiment, the fixed-axis calibration device for the focusing lens and the sampling grating further includes a focusing lens 12 disposed in the focusing lens assembly 1, when the fixed-axis calibration is performed, an optical axis of the focusing lens 12 coincides with a theoretical optical axis, the focusing lens 12 is a wedge-shaped lens, and the wedge-shaped lens is used for achieving one-dimensional longitudinal focusing, focusing clean triple-frequency light on a target point, sampling a triple-frequency light beam in a certain proportion by a certain angle through the phase optical element 11, and meanwhile achieving smooth light beam uniformity.
In this embodiment, one-dimensional longitudinal focusing is realized through the wedge-shaped lens, and clean triple-frequency light is focused on a target point, which is beneficial to improving the focusing effect of the focusing lens assembly.
Optionally, the fixed-axis calibration apparatus for the focusing lens and the sampling grating further includes a first support 5, the collimating component 3 is fixed on the first support 5, and the first support 5 is adapted to adjust the pose of the collimating component 3 and is adapted to be fixed-axis with respect to the phase optical element 11 when the first fixed-axis component 8 is aligned with the collimating component 3, and to be fixed-axis with respect to the shielding component 10 when the second fixed-axis component 9 is aligned with the collimating component 3.
Specifically, in this embodiment, referring to fig. 1, the fixed-axis calibration apparatus for a focusing lens and a sampling grating further includes a first support 5, the collimating element 3 is fixed on the first support 5, and during fixed-axis calibration, the posture of the collimating element 3 is adjusted by the first support 5, which is specifically embodied as: erecting an alignment member 3 on a first support 5 based on a focusing member 4, so that optical axes of the focusing member 4 and the alignment member 3 are superposed; locking the pose of the collimator 3, the collimator 3 forming the optical reference for the phase optics 11 and the shield 10; the postures of the phase optical element 11 and the shielding piece 10 can be adjusted, so that the first fixed shaft piece 8, the second fixed shaft piece 9 and the collimating piece 3 are aligned, and the postures of the phase optical element 11 and the shielding piece 10 are accurate; the poses of the phase optical element 11 and the shield 10 are locked, and the alignment of the phase optical element 11 and the shield 10 is completed.
In this embodiment, the pose of the collimating element is adjusted by the first support, so that the fixed-axis calibration of the collimating element relative to the phase optical element and the shielding element is realized, and the focusing capability of the focusing lens assembly is effectively improved.
Optionally, the fixed-axis calibration apparatus for the focusing lens and the sampling grating further includes a second bracket 6, the focusing element 4 is fixed on the second bracket 6, and the second bracket 6 is adapted to adjust the pose of the focusing element 4 and is adapted to use the focusing element 4 as the fixed-axis reference of the focusing lens 12 when the objective lens cross wire of the focusing element 4 coincides with the central cross wire of the front fixed-axis cross wire plate 2 and the central cross wire of the rear fixed-axis cross wire plate 7, respectively.
Specifically, in this embodiment, referring to fig. 1, the fixed-axis calibration apparatus for a focusing lens and a sampling grating further includes a second support 6, the focusing element 4 is fixed on the second support 6, and during fixed-axis calibration, the pose of the focusing element 4 is adjusted by the second support 6, which is specifically embodied as: a focusing piece 4 is erected on the second bracket 6; adjusting the focal length of the focusing piece 4 to enable the central cross thread of the front fixed shaft cross thread plate 2 to be imaged clearly; adjusting the pose of the focusing piece 4 to ensure that the objective fork wire of the focusing piece 4 is superposed with the central fork wire of the front fixed shaft fork wire plate 2; adjusting the focal length of the focusing piece 4 to enable the central cross thread of the rear dead axle cross thread plate 7 to be imaged clearly; adjusting the pose of the focusing piece 4 to ensure that the objective lens cross thread of the focusing piece 4 is superposed with the central cross thread of the rear dead axle cross thread plate 7; the optical axis of the focusing part 4 is the fixed axis reference of the focusing lens 12; the focal length of the focusing member 4 is adjusted so that the cross hairs at the center of the focusing lens 12 are clearly imaged.
In the embodiment, the pose of the focusing piece is adjusted through the second support, so that the fixed axis calibration of the focusing lens is realized, and the focusing capacity of the focusing lens assembly is effectively improved.
Optionally, the collimating element 3 is an electro-optical autocollimator.
Specifically, in this embodiment, the collimating element 3 is a photoelectric auto-collimator, which is a device designed by the LED light emitting element and the linear array CCD imaging technology according to the optical auto-collimation imaging principle, and the photoelectric auto-collimator has the characteristics of high precision, stable performance and simple operation, and can effectively improve the calibration speed and precision during the dead axle calibration, thereby being beneficial to improving the focusing effect of the focusing lens assembly 1.
In this embodiment, be photoelectricity autocollimator through setting up the collimation piece, effectively improve calibration speed and precision to be favorable to the focus effect promotion of focusing lens subassembly.
Optionally, the focusing element 4 is an internally focusing telescope.
Specifically, in this embodiment, the focusing element 4 is an inner focusing telescope, the length of the lens barrel of the inner focusing telescope is unchanged during focusing, the axis-fixed calibration process is convenient to perform, the focal length of the combined objective lens is relatively long, so the magnification is higher, and in the focusing process, the inner focusing telescope is wholly more stable, the change of the visual axis is small, the accuracy of the focusing process is favorably improved, and the focusing effect of the focusing lens assembly 1 is favorably improved.
In this embodiment, the focusing element is an inner focusing telescope, which is beneficial to improving the accuracy of the focusing process, thereby being beneficial to improving the focusing effect of the focusing lens assembly.
Optionally, the first fixed shaft member 8 and the second fixed shaft member 9 are tooling wedges.
Specifically, in this embodiment, as shown in fig. 1, the first fixed shaft 8 and the second fixed shaft 9 are tooling wedges, which is beneficial to improving the efficiency of the fixed-shaft calibration of the shielding element 10 and the phase optical element 11, and is further beneficial to improving the focusing effect of the focusing lens assembly 1.
In this embodiment, the first dead axle piece and the second dead axle piece are arranged as a tooling wedge block, so that dead axle calibration efficiency of the shielding piece and the phase optical element is improved, and focusing effect of the focusing lens assembly is improved.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides a focusing lens and sample grating's dead axle calibrating device, its characterized in that, includes focusing lens subassembly (1), preceding dead axle fork silk board (2), collimation piece (3), focusing piece (4), back dead axle fork silk board (7), first dead axle spare (8) and second dead axle spare (9), preceding dead axle fork silk board (2) are fixed in the front side of focusing lens subassembly (1), back dead axle fork silk board (7) are fixed in the rear side of focusing lens subassembly (1), the center of preceding dead axle fork silk board (2) with the center of back dead axle fork silk board (7) is suitable for being located theoretical optical axis, focusing piece (4) are located preceding dead axle fork silk board (2) are kept away from one side of focusing lens subassembly (1), the objective fork silk of focusing piece (4) be suitable for respectively with the center fork silk of preceding dead axle fork silk board (2) and with the dead axle fork silk board's of back (7) coincide, the dead axle fork silk board (3) is located the focusing piece (3) and second dead axle fork silk piece (9) are suitable for focusing optical axis (1) and second dead axle spare (9).
2. The device for calibrating the fixed axis of a focusing lens and a sampling grating according to claim 1, further comprising a shielding member (10) and a phase optical element (11) which are arranged in the focusing lens assembly (1), wherein the first fixed axis member (8) is fixed on the phase optical element (11) and is suitable for fixing the fixed axis of the phase optical element (11) when the first fixed axis member (8) is aligned with the collimating member (3), and the second fixed axis member (9) is fixed on the shielding member (10) and is suitable for fixing the fixed axis of the shielding member (10) when the second fixed axis member (9) is aligned with the collimating member (3).
3. The apparatus for coaxial alignment of a focusing lens and a sampled grating according to claim 2, wherein the shielding member (10) comprises two shielding plates parallel to each other.
4. The apparatus for centered alignment of a focusing lens and a sampled grating according to claim 2, wherein the phase optics (11) is a continuous phase plate.
5. The device for the fixed-axis calibration of a focusing lens and a sampled grating according to claim 2, further comprising a focusing lens (12) disposed in the focusing lens assembly (1), wherein an optical axis of the focusing lens (12) is adapted to coincide with the theoretical optical axis, and the focusing lens (12) is a wedge-shaped lens.
6. The device for calibrating the fixed axis of a focusing lens and a sampled grating according to claim 2, further comprising a first support (5), wherein the collimating element (3) is fixed on the first support (5), and wherein the first support (5) is adapted to adjust the pose of the collimating element (3) and to fix the axis of the phase optical element (11) when the first fixed axis element (8) is aligned with the collimating element (3) and to fix the axis of the shielding element (10) when the second fixed axis element (9) is aligned with the collimating element (3).
7. The apparatus for boresight calibration of a focus lens and a sampled grating according to claim 5, further comprising a second holder (6), wherein the focus member (4) is fixed to the second holder (6), and the second holder (6) is adapted to adjust the attitude of the focus member (4) and to use the focus member (4) as a boresight reference of the focus lens (12) when the objective lens cross-hair of the focus member (4) coincides with the central cross-hair of the front boresight cross-hair (2) and the central cross-hair of the rear boresight cross-hair (7), respectively.
8. The device for the fixed-axis alignment of a focusing lens and a sampled grating according to any one of claims 1 to 7, wherein the collimating element (3) is an electro-optic autocollimator.
9. The apparatus for the fixed axis alignment of a focusing lens and a sampled grating as claimed in any one of claims 1 to 7, wherein the focusing member (4) is an internally focusing telescope.
10. The device for the fixed axis calibration of a focusing lens and a sampled grating according to any one of claims 1 to 7, wherein the first fixed axis member (8) and the second fixed axis member (9) are tooling wedges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211389501.4A CN115657249A (en) | 2022-11-08 | 2022-11-08 | Fixed axis calibrating device for focusing lens and sampling grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211389501.4A CN115657249A (en) | 2022-11-08 | 2022-11-08 | Fixed axis calibrating device for focusing lens and sampling grating |
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| Publication Number | Publication Date |
|---|---|
| CN115657249A true CN115657249A (en) | 2023-01-31 |
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| CN202211389501.4A Pending CN115657249A (en) | 2022-11-08 | 2022-11-08 | Fixed axis calibrating device for focusing lens and sampling grating |
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2022
- 2022-11-08 CN CN202211389501.4A patent/CN115657249A/en active Pending
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