Adjusting device and method for super-large field relay optical system

Abstract

This invention belongs to the field of optical system assembly and adjustment, and relates to an assembly and adjustment device and method for an ultra-large field-of-view relay optical system. It includes a connecting beam, a left goggle frame, a left process goggle, a right goggle frame, and a right process goggle. The connecting beam includes an assembly and adjustment reference A, a first mounting reference, and a second mounting reference. The first mounting reference is used to install the ultra-large field-of-view relay optical system, and the second mounting reference is used to install the left and right goggle frames. The left process goggle is centered with the left goggle frame, and the right process goggle is centered with the right goggle frame. The left and right process goggles are coated with a semi-reflective, semi-transparent film. Through the assembly and adjustment device and method of this invention, the ultra-large field-of-view relay optical system and the process goggle are combined to form a complete imaging system, ensuring that the actual imaging effect of the relay optical system can be directly observed during assembly and adjustment, achieving rapid assembly and adjustment of the ultra-large field-of-view relay optical system, and ensuring assembly and adjustment accuracy.

Description

Technical Field

[0001] This invention belongs to the field of optomechanical assembly and adjustment of optical systems, and relates to an apparatus and method for assembling and adjusting an ultra-large field-of-view relay optical system. Background Technology

[0002] A certain type of ultra-large field-of-view relay optical system consists of aspherical lenses, freeform prisms, and clamshell-type optomechanical structures. Its structure is compact and it displays a large field of view. However, as a relay optical system, it cannot form an image on its own, and its assembly and adjustment effects cannot be directly observed. Currently, there is no assembly and adjustment method that meets the requirements for its use.

[0003] Therefore, there is an urgent need to design an assembly and adjustment device and method for an ultra-large field-of-view relay optical system to solve the assembly and adjustment accuracy problem of the ultra-large field-of-view relay optical system. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the relay optical system cannot form an image on its own, its assembly and adjustment effect cannot be directly observed, and the assembly and adjustment accuracy of the entire optical system cannot be guaranteed.

[0005] The purpose of this invention is to provide an assembly and adjustment device and method for an ultra-large field-of-view relay optical system. Through the assembly and adjustment method of the ultra-large field-of-view relay optical system of this invention, a dedicated assembly and adjustment device is provided to provide process protective goggles for the relay system, forming a complete imaging system, and solving the assembly and adjustment accuracy problem of the ultra-large field-of-view relay optical system.

[0006] One technical solution provided by this invention is:

[0007] An assembly and adjustment device for an ultra-wide field-of-view relay optical system includes a connecting beam, a left goggle frame, a left process goggle, a right goggle frame, and a right process goggle. The connecting beam includes an assembly and adjustment reference A, a first mounting reference, and a second mounting reference. The first mounting reference is used to install the ultra-wide field-of-view relay optical system, and the second mounting reference is used to install the left and right goggle frames. The left process goggle is centered between itself and the left goggle frame, and the right process goggle is centered between itself and the right goggle frame. The left and right process goggles are coated with a semi-reflective and semi-transparent film.

[0008] A further technical solution of the present invention is: the connecting crossbeam is a trapezoidal frustum, including a first plane, a second plane and a third plane, the first plane and the second plane are symmetrically arranged on both sides of the third plane, a first installation reference and a second installation reference are provided on both the first plane and the second plane, and an adjustment reference A is provided on the third plane; the included angle between the first plane, the second plane and the third plane is 60°.

[0009] A further technical solution of the present invention is: the left goggle frame and the right goggle frame have the same structure, are L-shaped as a whole, and are fixedly installed in a semi-enclosed structure for the left process goggle and the right process goggle, so that the mounting planes of the left process goggle and the right process goggle are perpendicular to the first plane and the second plane, respectively.

[0010] A further technical solution of the present invention is: the flatness of the mounting reference A is 0.01mm, and the positional accuracy of the first mounting reference and the second mounting reference is 0.02mm.

[0011] A further technical solution of the present invention is: the left process goggle frame and the right goggle frame include pin positioning holes as installation references, and the pin hole position accuracy is 0.015mm.

[0012] A further technical solution of the present invention is that the spatial positional tolerance between the pin hole of the left goggle frame and the center of the left process goggle, and between the pin hole of the right goggle frame and the center of the right process goggle, is ±0.015mm.

[0013] A further technical solution of the present invention is: both the left and right goggle frames are provided with pin positioning holes and screw mounting holes, and are connected to the connecting crossbeam by screws and pins.

[0014] Another technical solution provided by this invention is:

[0015] A method for assembling and adjusting an ultra-large field-of-view relay optical system includes the following steps:

[0016] Step 1: After centering and installing the left and right process goggles into the left and right goggle frames, respectively, they are positioned and installed into the assembly and adjustment device using the second installation reference.

[0017] Step 2: Position and install the ultra-large field-of-view relay optical system on the assembly and adjustment device using the first installation reference, and place it in front of the large field-of-view collimator;

[0018] Step 3: Observe the installation reference A with a theodolite and record the reference azimuth and elevation angle. After determining the position of the relay optical system, lock the theodolite.

[0019] Step 4: Next, observe the wide field-of-view collimator with a theodolite, and adjust the wide field-of-view collimator to match the position of the installation reference A recorded by the theodolite.

[0020] Step 5: Observe the display image reflected through the process goggles in the relay optical system and the position of the engraved lines through the wide field-of-view collimator of the process goggles. Once the preset conditions are met, the system assembly and adjustment are completed.

[0021] A further technical solution of the present invention is: in step five, the preset condition is: the deviation between the center of the display screen and the center of the large field-of-view parallel light tube does not exceed 10′, and the assembly and adjustment are qualified.

[0022] Beneficial effects

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention provides a method and apparatus for assembling and adjusting an ultra-large field-of-view relay optical system. By setting an assembly and adjustment reference A, a first installation reference and a second installation reference on the connecting crossbeam, the ultra-large field-of-view relay optical system and the process goggles are combined to form a complete imaging system, ensuring that the actual imaging effect of the relay optical system can be directly observed during assembly and adjustment, and realizing the rapid assembly and adjustment of the ultra-large field-of-view relay optical system.

[0025] 2. This invention provides a method and apparatus for assembling and adjusting an ultra-large field-of-view relay optical system. The left and right process goggles are coated with a semi-reflective and semi-transparent film to ensure that during assembly and adjustment, the display image reflected by the process goggles and the position of the engraved line of the large field-of-view collimator through the process goggles can be observed simultaneously, thus achieving the effect of quickly judging whether the assembly and adjustment is qualified by visual inspection.

[0026] 3. This invention provides a method and apparatus for assembling and adjusting an ultra-large field-of-view relay optical system. The connecting beam is in the shape of a trapezoidal frustum and has a first plane, a second plane, and a third plane. The first plane and the second plane are symmetrically arranged on both sides of the third plane. A first mounting reference and a second mounting reference are set on the first plane and the second plane, respectively, and an assembly and adjustment reference A is set on the third plane. The included angles of the first plane, the second plane, and the third plane are all configured to be 60°, providing assembly and adjustment fixtures, which facilitates assembly and adjustment while providing a basis for accuracy.

[0027] 4. This invention provides a method and apparatus for assembling and adjusting an ultra-large field-of-view relay optical system. The planarity of the assembly and adjustment reference is 0.01 mm, and the positional tolerances of the first and second mounting references are both 0.02 mm. The left and right goggle frames include pin positioning holes as mounting references, with a pin hole positional tolerance of 0.015 mm. The spatial tolerances between the pin holes in the left goggle frame and the center of the left goggle sphere, and between the pin holes in the right goggle frame and the center of the right goggle sphere, are both ±0.015 mm. These parameter settings meet the system accuracy requirements without compromising the actual imaging effect of the relay optical system, providing an assembly and adjustment reference and structural support, thus ensuring assembly and adjustment accuracy. Attached Figure Description

[0028] Figure 1 : A forward schematic diagram of the components of this invention;

[0029] Figure 2 : Side view of the components of this invention;

[0030] Figure 3 : Schematic diagram of the connection beam adjustment reference A of the present invention;

[0031] Figure 4 Schematic diagram of the connecting beam of this invention Figure 1 ;

[0032] Figure 5 Schematic diagram of the connecting beam of this invention Figure 2 ;

[0033] Figure 6 : A perspective view of the connecting beam of this invention;

[0034] Figure 7 : Schematic diagram of the goggle frame structure of the present invention;

[0035] Figure 8 : A schematic diagram illustrating the positional accuracy of the pin hole in the left goggle frame and the center of the left process goggle ball in this invention;

[0036] Figure 9 : A schematic diagram illustrating the positional accuracy of the pin hole in the right goggle frame and the center of the ball in the right process goggle of this invention;

[0037] Figure 10 : Schematic diagram of the connection between the relay optical system and the assembly / adjustment device in this invention;

[0038] Figure 11 : Schematic diagram of the optical path adjustment of this invention.

[0039] In the diagram: 1 connecting beam, 2 left goggle frame, 3 left process goggle, 4 right goggle frame, 5 right process goggle, 61 assembly and adjustment device, 62 relay optical system, P observation point. Detailed Implementation

[0040] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Example 1:

[0043] An assembly and adjustment device for an ultra-large field-of-view relay optical system, as shown in the attached document. Figure 1-11 As shown, the device includes a connecting beam 1, a left goggle frame 2, a left process goggle 3, a right goggle frame 4, and a right process goggle 5. The connecting beam 1 includes an adjustment reference A, a first installation reference, and a second installation reference. The first installation reference is used to install the ultra-large field-of-view relay optical system, and the second installation reference is used to install the left goggle frame 2 and the right goggle frame 4. The left process goggle 3 and the left goggle frame 2, and the right process goggle 5 and the right goggle frame 4 are all centered and installed. The left process goggle 3 and the right process goggle are coated with a semi-reflective and semi-transparent film.

[0044] The connecting beam 1 is in the shape of a trapezoidal frustum, including a first plane, a second plane and a third plane. The first plane and the second plane are symmetrically arranged on both sides of the third plane. A first installation reference and a second installation reference are set on the first plane and the second plane respectively. An adjustment reference A is set on the third plane. The included angle between the first plane, the second plane and the third plane is 60°.

[0045] The connecting beam 1 includes an assembly and adjustment reference A, which provides a reference for assembly and adjustment, with a reference flatness of 0.01mm; the connecting beam 1 includes a first mounting reference for the ultra-large field-of-view relay optical system structure, with a reference position accuracy of 0.02mm; the connecting beam 1 includes a second mounting reference for the left and right process goggle frames 5, with a reference position accuracy of 0.02mm; the left process goggle frame 3 and the right goggle frame 4 include pin holes as mounting references, with pin hole position accuracy of 0.015mm; the left process goggle 3 and the right process goggle are coated with a semi-reflective and semi-transparent film, which allows for observation of reflected images and transmission images.

[0046] The left goggle frame 2 and the right goggle frame 4 have the same structure, and are L-shaped as a whole. They are fixedly installed in a semi-enclosed structure, so that the mounting planes of the left process goggle 3 and the right process goggle 5 are perpendicular to the first plane and the second plane, respectively.

[0047] The left goggle frame 2 and the left process goggle 3 are centered to ensure the position of the optical axis of the process goggle. The spatial position tolerance between the pin hole of the left goggle frame 2 and the center of the ball of the left process goggle 3 is ±0.015mm. The right goggle frame 4 and the right process goggle 5 are centered to ensure the position of the optical axis of the process goggle. The spatial position tolerance between the pin hole of the right goggle frame 4 and the center of the ball of the right process goggle 5 is ±0.015mm. The left goggle frames 2 and 4 and the right goggle frame 4 include pin positioning holes and screw mounting holes. The screws and pins are used to connect to the connecting beam 1 to ensure the positional relationship between the optical axis of the goggle and the installation reference.

[0048] Example 2

[0049] As attached Figure 1-11 As shown, the assembly and adjustment of this relay optical system is completed using a dedicated assembly and adjustment device for an ultra-large field-of-view relay optical system. The assembly and adjustment method involves the following steps:

[0050] A method for assembling and adjusting an ultra-large field-of-view relay optical system includes the following steps:

[0051] Step 1: After centering and installing the left process goggle 3 and the right process goggle 5 into the left goggle frame 2 and the right goggle frame 4, respectively, they are positioned and installed into the assembly and adjustment device using the second installation reference.

[0052] like Figure 3 As shown, the structural component connecting beam 1 provides an adjustment reference A and provides a positioning pin hole for connecting with the left and right process goggles 5 frames as an installation reference.

[0053] like Figure 8 As shown, the left goggle frame 2 and the left process goggle 3 are aligned to ensure the optical axis position of the process goggle, and to ensure that the spatial position tolerance between the pin hole of the left goggle frame 2 and the center of the ball of the left process goggle 3 is ±0.015mm. Then, they are fixed to the connecting beam 1 by pins and screws to form a special assembly and adjustment device.

[0054] like Figure 9 As shown, the right goggle frame 4 and the right process goggle 5 are aligned to ensure the optical axis position of the process goggle, and to ensure that the spatial position tolerance between the pin hole of the right goggle frame 4 and the center of the ball of the right process goggle 5 is ±0.015mm. Then, they are fixed to the connecting beam 1 by pins and screws to form a special assembly and adjustment device.

[0055] Step Two: As Figure 10-11 As shown, the ultra-large field-of-view relay optical system is positioned and installed on the assembly and adjustment device using the first installation reference, and then placed in front of the large field-of-view collimator.

[0056] Step 3: Observe the adjustment reference A of the connecting beam 1 with the theodolite, record the reference azimuth elevation angle, and lock the theodolite after determining the position of the relay optical system;

[0057] Step 4: Observe the wide field-of-view collimator with a theodolite, and adjust the wide field-of-view collimator to match the adjustment reference A position recorded by the theodolite.

[0058] Step 5: The assembly and adjustment are completed by observing the display image reflected through the process goggles of the relay optical system and the position of the scribed lines through the wide field-of-view collimator of the process goggles.

[0059] The deviation between the center of the display screen and the center of the large field-of-view parallel light tube does not exceed 10′, which meets the conditions for qualified assembly and adjustment.

[0060] By setting the assembly reference A, the first installation reference, and the second installation reference on the connecting beam 1, the ultra-large field-of-view relay optical system and the process goggles are combined to form a complete imaging system. This ensures that the actual imaging effect of the relay optical system can be directly observed during assembly and adjustment, thus achieving rapid assembly and adjustment of the ultra-large field-of-view relay optical system. The left process goggle 3 and the right process goggle 5 are coated with a semi-reflective and semi-transparent film, ensuring that the display image reflected by the process goggles and the position of the engraved line of the large field-of-view collimator through the process goggles can be observed simultaneously during assembly and adjustment. This achieves the effect of quickly judging whether the assembly and adjustment is qualified by visual inspection, thus significantly improving the overall assembly and adjustment efficiency and accuracy.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A method of aligning an ultra-large field relay optical system, characterized by: The method adopts an adjusting device of the super large field relay optical system, which comprises a connecting beam, a left goggle frame, a left process goggle, a right goggle frame and a right process goggle. The connecting beam is a trapezoidal prism, comprising a first plane, a second plane and a third plane, the first plane and the second plane are symmetrically arranged on the two sides of the third plane, the first plane and the second plane are provided with the first mounting datum and the second mounting datum, and the third plane is provided with the adjusting datum A. The left goggle frame and the right goggle frame are identical in structure, and are integrally fixed in an L-shaped semi-enclosed structure to fix the left process goggle and the right process goggle, so that the installation planes of the left process goggle and the right process goggle are perpendicular to the first plane and the second plane respectively. The adjusting method comprises the following steps: Step one: after the left process goggle and the right process goggle are fixed in the left goggle frame and the right goggle frame, they are positioned and installed on the adjusting device through the second mounting datum respectively; Step two: after the super large field relay optical system is positioned and installed on the adjusting device through the first mounting datum, it is placed in front of the large field collimator; Step three: the adjusting datum A is observed through the theodolite, and the reference position and the pitch angle are recorded, and the position of the relay optical system is determined, and then the theodolite is locked; Step four: the large field collimator is observed through the theodolite, and the position of the large field collimator is adjusted to be consistent with the adjusting datum A according to the position of the adjusting datum A recorded by the theodolite; Step five: the display picture reflected by the process goggle in the relay optical system and the scale position of the large field collimator are observed, and when the preset condition is reached, the system adjustment is completed.

2. The alignment method of a super large field relay optical system according to claim 1, wherein: The flatness of the adjusting datum A is 0.01mm, and the position degree of the first mounting datum and the second mounting datum is 0.02mm.

3. The method of claim 1, wherein: The left process goggle frame and the right process goggle frame comprise pin positioning holes as mounting datum, and the position degree of the pin holes is 0.015mm.

4. The method of claim 1, wherein: The spatial position degree between the pin hole of the left goggle frame and the ball center of the left process goggle, and the spatial position degree between the pin hole of the right goggle frame and the ball center of the right process goggle are both ±0.015mm.

5. The method of claim 1, wherein: The left goggle frame and the right goggle frame are provided with pin positioning holes and screw mounting holes, and are connected with the connecting beam through screws and pins.

6. The method of assembling and adjusting an ultra-large field of view relay optical system according to claim 1, characterized in that: In step five, the preset condition is that the deviation between the center of the display picture and the center of the large field collimator is not more than 10′, and the adjustment is qualified.

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