Correction device

Abstract

The utility model provides a correction device which is used for a sighting telescope system, and the sighting telescope system comprises a white light sighting telescope and a front infrared sighting telescope. The correction device comprises an optical platform, and a light splitting module, a first eye space camera and a second eye space camera which are respectively arranged on the optical platform. The light splitting module comprises a light inlet channel, a first light outlet channel and a second light outlet channel. The white light sighting telescope is arranged on the second light outlet channel, the second eye space camera is arranged at the eyepiece end of the white light sighting telescope, the front infrared sighting telescope is arranged on the light inlet channel, and the first eye space camera is arranged on the first light outlet channel. The first objective camera is used for acquiring and outputting a first image, and the first image is a full-view-field image of the sighting telescope system; the second eye camera is used for acquiring and outputting a second image, and the second image is a divided image of the white light sighting telescope. According to the correcting device, the front infrared sighting telescope can be conveniently adjusted, and the adjusting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical adjustment, and in particular to a correction device. Background Art

[0002] The front infrared telescope is a special infrared sight with a visual magnification of 1. Its main application scenario is to be placed in front of the white light sight to empower the existing white light sight with infrared thermal imaging capabilities, and the infrared aiming function can be realized without disassembling the white light sight.

[0003] At present, most of the traditional front infrared sight calibration methods are to directly observe the crosshairs of the white light sight through the human eye, and then adjust the position of the infrared sight display screen or adjust the position of the infrared image through software to complete the front sight center calibration. This method first needs to observe whether the crosshairs of the white light sight are aimed at the distant target, and then move the front infrared sight to make it pitch and yaw at a certain angle to observe whether the crosshairs are still aimed at the target. It is necessary to repeatedly adjust the image position of the front infrared sight and observe again. Since the front infrared sight has been installed on the leather rail, the operation of adjusting the infrared image usually requires the front infrared sight to be removed before the screen can be observed for operation and adjustment. Therefore, it is very cumbersome to complete the calibration of a front infrared sight, and the calibration efficiency is also very low. At the same time, since the full field of view cannot be displayed when the white light sight presents an enlarged image, the icon of the interface operation button cannot be displayed in the screen, which is very inconvenient for the adjustment operation, increases the difficulty of adjustment, and reduces the efficiency of adjustment. Summary of the invention

[0004] Based on this, the present application provides a calibration device to solve the problems of inconvenient calibration and low calibration efficiency in the prior art.

[0005] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] The embodiment of the present application provides a calibration device for a sight system, wherein the sight system includes a white light sight and a front infrared sight; the calibration device includes an optical platform, and a spectroscopic module, a first eye-side camera, and a second eye-side camera respectively arranged on the optical platform;

[0007] The light splitting module includes a light input channel, a first light output channel and a second light output channel;

[0008] The white light sight is arranged on the second light output channel, the second eye side camera is arranged on the eyepiece end of the white light sight, the front infrared sight is arranged on the light input channel, and the first eye side camera is arranged on the first light output channel;

[0009] The first objective camera is used to acquire and output a first image, which is a full-field-of-view image of the sight system; the second objective camera is used to acquire and output a second image, which is a graticule image of the white light sight.

[0010] In one embodiment, the correction device further includes a display device, the first target camera and the second target camera are respectively connected to the display device by signal, and the display device is used to display the first image and the second image respectively.

[0011] In one of the embodiments, the correction device also includes a processing system, and the processing system is used to calibrate the front infrared sight according to the first image.

[0012] In one embodiment, the light splitting module includes a semi-transparent and semi-reflective mirror, which is arranged at an angle of 45° to the optical axis of the sight system. The reflected light of the incident light after passing through the semi-transparent and semi-reflective mirror enters the first eye-side camera through the first light output channel, and the transmitted light of the incident light after passing through the semi-transparent and semi-reflective mirror enters the second eye-side camera through the second light output channel after passing through the white light sight.

[0013] In one embodiment, the spectrometer module also includes a fixing frame, which includes a cover plate arranged on the top, a base plate arranged on the bottom, and a fixing plate, a front plate, a rear plate and a side plate respectively connected to the cover plate and the base plate; the front plate, the rear plate and the side plates are respectively provided with light holes, the front plate is arranged at one end of the fixing frame close to the front infrared sight, the rear plate is arranged at one end of the fixing frame close to the white light sight, the side plate is arranged at one end of the fixing frame close to the first objective camera, and the fixing plate is arranged at one end of the fixing frame away from the first objective camera; the semi-transparent and semi-reflective mirror is arranged in the fixing frame.

[0014] In one of the embodiments, the fixing frame further comprises a lens support plate, the lens support plate is arranged in the fixing frame, the lens support is provided with a mounting groove, and the semi-transparent and semi-reflective mirror is installed in the mounting groove.

[0015] In one of the embodiments, a first positioning structure is provided on the side panel, and the first objective camera is installed on the first positioning structure.

[0016] In one embodiment, the correction device also includes an optical axis calibration structure, the optical axis calibration structure includes a basic leather rail, the white light sight, the spectroscopic module and the front infrared sight are sequentially installed on the basic leather rail, and the basic leather rail is installed on the optical platform.

[0017] In one of the embodiments, the optical axis calibration structure also includes a height-adjusting leather rail and an adjustment pad. The height-adjusting leather rail is detachably connected to the basic leather rail and the white light sight, respectively, and is used to adjust the optical axis height of the white light sight; the adjustment pad is detachably connected to the basic leather rail and the spectrometer module, respectively, and is used to adjust the optical axis height of the spectrometer module.

[0018] In one embodiment, the correction device also includes a mounting tube, one end of which is detachably connected to the eyepiece of the day light sight, and the other end is provided with a second positioning structure, and the second eyepiece camera is installed on the second positioning structure.

[0019] The present application has at least the following beneficial effects: the calibration device provided in the embodiment of the present application divides the incident light into two channels for output by setting a splitter module, wherein the first light output channel is used to reflect the incident light and output a full-field image; the second light output channel is used to transmit the incident light and output a graticule image of the white light sight. By setting a splitter module, both the full-field image and the graticule image can be displayed, which facilitates the adjustment of the front infrared aiming system and improves the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of the correction device and the sight system of an embodiment of the present application (the first objective camera and the second objective camera are only schematically shown and are not connected).

[0021] Figure 2 for Figure 1 Schematic diagram of the optical path and imaging.

[0022] Figure 3 for Figure 1 Schematic diagram of the decomposed structure of the splitter module.

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the installation tube.

[0024] The meanings of the symbols in the accompanying drawings are as follows:

[0025] 1. Front infrared sight;

[0026] 2. Spectral module; 21. Light inlet channel; 22. First light outlet channel; 23. Second light outlet channel; 24. Fixing frame; 241. Cover plate; 242. Bottom plate; 243. Fixing plate; 244. Front plate; 245. Back plate; 246. Side plate; 2461. First positioning structure; 247. Lens support plate; 2471. Mounting groove; 248. Light hole; 25. Semi-transparent and semi-reflective mirror;

[0027] 3. First eye camera;

[0028] 4. White light sight;

[0029] 5. Second objective camera;

[0030] 6. Optical axis calibration structure; 61. Basic leather rail; 62. Adjustment pad; 63. Heightening leather rail;

[0031] 7. Mounting cylinder; 71. Open ring; 711. Connecting plate; 712. Connecting hole; 72. Second positioning structure;

[0032] 8. display device; 81. first image; 82. second image;

[0033] 9. Processing system. DETAILED DESCRIPTION

[0034] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] See also Figure 1 and Figure 2The correction device of the embodiment of the present application is used for a sight system, which includes a white light sight 4 and a front infrared sight 1. The front infrared sight 1 is arranged at the objective end of the white light sight 4, and the correction device is used to assist the calibration work of the front infrared sight 1 and the white light sight 4.

[0039] The calibration device includes an optical platform (not shown), and a spectroscopic module 2, a first eye-side camera 3 and a second eye-side camera 5 which are respectively arranged on the optical platform.

[0040] The light splitting module 2 includes a light input channel 21 , a first light output channel 22 and a second light output channel 23 .

[0041] The white light sight 4 is arranged on the second light output channel 23 , the second eye-side camera 5 is arranged at the eyepiece end of the white light sight 4 , the front infrared sight 1 is arranged on the light input channel 21 , and the first eye-side camera 3 is arranged on the first light output channel 22 .

[0042] The first objective camera 3 is used to acquire and output a first image 81 , which is a full-field-of-view image of the sight system; the second objective camera 5 is used to acquire and output a second image 82 , which is a graticule image of the white light sight 4 .

[0043] Specifically, Figure 3 As shown, in this embodiment, the light splitting module 2 includes a fixing frame 24 and a semi-transparent and semi-reflective mirror 25 arranged in the fixing frame 24. The fixing frame 24 is in the shape of a rectangular parallelepiped, and includes a cover plate 241 arranged at the top, a bottom plate 242 arranged at the bottom, and a fixing plate 243, a front plate 244, a rear plate 245 and a side plate 246 respectively connected to the cover plate 241 and the bottom plate 242. The front plate 244, the rear plate 245 and the side plate 246 are respectively provided with light holes 248, the front plate 244 is arranged at one end of the fixing frame 24 close to the front infrared sight 1, the rear plate 245 is arranged at one end of the fixing frame 24 close to the white light sight 4, the side plate 246 is arranged at one end of the fixing frame 24 close to the first eye side camera 3, and the fixing plate 243 is arranged at one end of the fixing frame 24 away from the first eye side camera 3.

[0044] In some embodiments, the fixing frame 24 may further include a lens support plate 247, the lens support plate 247 is disposed in the fixing frame 24, the lens support is provided with a mounting groove 2471, and the semi-transparent and semi-reflective mirror 25 is mounted in the mounting groove 2471. For example, the semi-transparent and semi-reflective mirror 25 may be bonded and fixed to the mounting groove 2471 by an adhesive such as silicone. The lens support may be fixedly connected to the fixing plate 243 by a connecting member such as a bolt. All structural members of the fixing frame 24 may be subjected to an oxidized blackening treatment.

[0045] The semi-transparent and semi-reflective mirror 25 is set at an angle of 45° to the optical axis of the sight system. The reflected light of the incident light after passing through the semi-transparent and semi-reflective mirror 25 enters the first eye side camera 3 through the first light output channel 22. Therefore, the first eye side camera presents a full-field image of the incident light; the transmitted light of the incident light after passing through the semi-transparent and semi-reflective mirror 25 enters the second eye side camera 5 through the second light output channel 23 and the white light sight 4. The second eye side camera 5 presents the divided image of the white light sight 4.

[0046] A first positioning structure 2461 may also be provided on the side plate 246, and the first positioning structure 2461 is used to position and install the first objective camera 3. The first positioning structure 2461 may be, for example, a plurality of positioning holes, and the first objective camera 3 is also provided with a plurality of corresponding positioning holes. The first objective camera 3 and the light splitting module 2 may be installed and positioned by inserting connectors into the corresponding positioning holes of the side plate 246 and the first objective camera 3. After the first objective camera 3 is fixed to the light splitting module 2 through the first positioning structure 2461, the optical axis consistency with the light splitting module 2 can be ensured, and the adjustment of the optical axis is convenient.

[0047] In order to facilitate the display of the first image 81 and the second image 82, so that the user can observe and adjust the image conveniently when correcting the image, a display device 8 and a processing system 9 can also be set. The first eye-side camera 3 and the second eye-side camera 5 are respectively connected to the display device 8 by signal, and the display device 8 can display the first image 81 and the second image 82 respectively. For example, the display device 8 is a display screen, and the first eye-side camera 3 and the second eye-side camera 5 can be connected to the display screen through a USB interface respectively, and the first image 81 and the second image 82 are displayed side by side on the display screen. The first image 81 is a full-field image, and can fully display the interface operation virtual keys and the adjustment operation process, which is convenient for user operation. The second image 82 can display the enlarged image of the white light sight 4, so that the adjustment is more accurate. The processing system 9 is respectively connected to the display device 8 and the sight system signal, and the processing system 9 can be, for example, a computer host, etc. The processing system 9 is used to calibrate the front infrared sight 1 according to the first image 81. Specifically, for example, the infrared image displayed on the display screen of the front infrared sight 1 can be translated through software, and the target in the infrared image can be moved to the center of the crosshairs of the white light sight 4. The calibration problem can be solved by image translation without moving the display screen of the front infrared sight 1, which facilitates user operation and improves correction efficiency.

[0048] like Figure 1As shown, in order to facilitate the alignment of the optical axis of the sight system, an optical axis calibration structure 6 can also be set, and the optical axis calibration structure 6 includes a basic leather rail 61, a height adjustment leather rail 63 and an adjustment pad 62. The white light sight 4, the spectroscopic module 2 and the front infrared sight 1 are sequentially mounted on the basic leather rail 61, and the basic leather rail 61 is fixed on the optical platform. By setting the basic leather rail 61, the installation of the white light sight 4 and the front infrared sight 1 can be convenient, because the white light sight 4 and the front infrared sight 1 themselves are equipped with a connection structure, and the connection structure is used to connect with the leather rail. The use of a universal leather rail structure in the optical axis calibration structure 6 can enhance the applicability of the optical axis calibration structure 6, reduce the additional configuration of the connection structure, and facilitate the user to use while reducing the cost expenditure. At the same time, the detachable connection between the white light sight 4, the spectroscopic module 2 and the front infrared sight 1 and the optical platform is realized, which is convenient for installation and disassembly, and the optical axes of the three can be placed in the same vertical plane, which is convenient for the alignment of the optical axis. The height-adjusting leather rail 63 is disposed at the bottom of the white light sight 4, and the height-adjusting leather rail 63 is detachably connected to the basic leather rail 61 and the white light sight 4, respectively, and is used to adjust the optical axis height of the white light sight 4. For example, when a front infrared sight 1 or a white light sight 4 with different center heights is configured, the optical axis height of the white light sight 4 can be adjusted by installing height-adjusting leather rails 63 of different sizes on the basic leather rail 61. The adjusting pad 62 is disposed at the bottom of the spectroscopic module 2, and the adjusting pad 62 is detachably connected to the basic leather rail 61 and the spectroscopic module 2, respectively, and is used to adjust the optical axis height of the spectroscopic module 2. For example, when a front infrared sight 1 or a white light sight 4 with different center heights is configured, the optical axis height of the spectroscopic module 2 can be adjusted by installing adjusting pads 62 of different sizes on the basic leather rail 61.

[0049] like Figure 1 and Figure 4 As shown, the calibration device of this embodiment may further include a mounting tube 7, one end of which is detachably connected to the eyepiece of the daylight sight 4, and the other end is provided with a second positioning structure 72, and the second eye side camera 5 is installed on the second positioning structure 72. For example, an open ring 71 is provided at one end of the mounting tube 7, and connecting plates 711 are respectively provided on the two side walls of the opening of the open ring 71, and a connecting hole 712 is provided on the connecting plate 711. The open ring 71 is inserted into the eyepiece of the daylight sight 4, and bolts, nuts and other connecting members are passed through the connecting hole 712. The mounting tube 7 can be fixed to the eyepiece of the daylight sight 4 by locking the open ring 71 through the connecting member. The other end of the mounting tube 7 is provided with a second positioning structure 72 for mounting and fixing the second eye side camera 5. The second positioning structure 72 can be, for example, a positioning bolt, a positioning hole, etc. After the second eye side camera 5 is fixed to the mounting tube 7 through the second positioning structure 72, it can be ensured that the optical axis of the second eye side camera 5 is consistent with that of the daylight sight 4, which is very convenient.

[0050] After the calibration device of this embodiment is installed and debugged once, if it is necessary to continue to calibrate the remaining equal center heights, except for the front infrared sight, the remaining devices can be fixed and only the front infrared sight needs to be replaced, which is convenient for batch calibration. If it is necessary to calibrate the front infrared sights with different center heights, the optical axis needs to be adjusted by replacing the height adjustment leather rail and adjusting the pad.

[0051] The correction device of the embodiment of the present application uses a semi-transparent and semi-reflective mirror to split the incident light, and uses two eye-side cameras to respectively obtain the full field of view of the front infrared sight and the picture of the white light sight, and the interface operation and the adjustment of the crosshairs can be observed on the computer side (display device) at the same time. In mass production, the correction device of the present application can effectively improve the adjustment efficiency, which is several times or even dozens of times higher than the traditional correction method. The embodiment of the present application facilitates the optical axis calibration of the splitting module, the white light sight and the front infrared sight by setting an optical axis calibration structure, further improving the adjustment efficiency and accuracy.

[0052] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0053] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A calibration device for a sighting system, the sighting system comprising a white light sight (4) and a front infrared sight (1); characterized in that: The calibration device comprises an optical platform, and a light splitting module (2), a first eye-side camera (3) and a second eye-side camera (5) respectively arranged on the optical platform; The light splitting module (2) comprises a light input channel (21), a first light output channel (22) and a second light output channel (23); The white light sight (4) is arranged on the second light output channel (23), the second eye-side camera (5) is arranged on the eyepiece end of the white light sight (4), the front infrared sight (1) is arranged on the light input channel (21), and the first eye-side camera (3) is arranged on the first light output channel (22); The first sight camera (3) is used to acquire and output a first image (81), the first image (81) being a full-field-of-view image of the sight system; the second sight camera (5) is used to acquire and output a second image (82), the second image (82) being a graticule image of the white light sight (4).

2. The calibration device according to claim 1, characterized in that The device also includes a display device (8), wherein the first target camera (3) and the second target camera (5) are respectively connected to the display device (8) by signals, and the display device (8) is used to display the first image (81) and the second image (82) respectively.

3. The calibration device according to claim 2, characterized in that: It also includes a processing system (9), which is used to calibrate the front infrared sight (1) according to the first image (81).

4. The calibration device according to claim 1, characterized in that: The light splitting module (2) comprises a semi-transparent and semi-reflective mirror (25), and the semi-transparent and semi-reflective mirror (25) is arranged at an angle of 45° with the optical axis of the sighting system. After the incident light passes through the semi-transparent and semi-reflective mirror (25), the reflected light enters the first sighting camera (3) through the first light output channel (22), and after the incident light passes through the semi-transparent and semi-reflective mirror (25), the transmitted light enters the second sighting camera (5) through the second light output channel (23) through the white light sighting lens (4).

5. The calibration device according to claim 4, characterized in that: The light splitting module (2) further comprises a fixing frame (24), the fixing frame (24) comprising a cover plate (241) arranged at the top, a base plate (242) arranged at the bottom, and a fixing plate (243), a front plate (244), a rear plate (245) and a side plate (246) respectively connected to the cover plate (241) and the base plate (242); the front plate (244), the rear plate (245) and the side plate (246) are respectively provided with light through holes (248); 44) is arranged at one end of the fixing frame (24) close to the front infrared sight (1), the rear plate (245) is arranged at one end of the fixing frame (24) close to the white light sight (4), the side plate (246) is arranged at one end of the fixing frame (24) close to the first sight camera (3), and the fixing plate (243) is arranged at one end of the fixing frame (24) away from the first sight camera (3); the semi-transparent and semi-reflective mirror (25) is arranged in the fixing frame (24).

6. The calibration device according to claim 5, characterized in that: The fixing frame (24) further comprises a lens support plate (247), wherein the lens support plate (247) is arranged in the fixing frame (24), and a mounting groove (2471) is provided on the lens support, and the semi-transparent and semi-reflective mirror (25) is mounted in the mounting groove (2471).

7. The calibration device according to claim 5, characterized in that: The side plate (246) is provided with a first positioning structure (2461), and the first objective camera (3) is installed on the first positioning structure (2461).

8. The calibration device according to claim 1, characterized in that: It also includes an optical axis calibration structure (6), the optical axis calibration structure (6) includes a basic leather rail (61), the white light sight (4), the beam splitting module (2) and the front infrared sight (1) are sequentially mounted on the basic leather rail (61), and the basic leather rail (61) is mounted on the optical platform.

9. The calibration device according to claim 8, characterized in that: The optical axis calibration structure (6) further comprises a height-adjusting leather rail (63) and an adjusting pad (62); the height-adjusting leather rail (63) is detachably connected to the basic leather rail (61) and the white light sight (4) respectively, and is used to adjust the optical axis height of the white light sight (4); and the adjusting pad (62) is detachably connected to the basic leather rail (61) and the light splitting module (2) respectively, and is used to adjust the optical axis height of the light splitting module (2).

10. The calibration device according to claim 1, characterized in that: It also comprises a mounting tube (7), one end of which is detachably connected to the eyepiece of the daylight sight (4), and the other end of which is provided with a second positioning structure (72), and the second eyepiece camera (5) is mounted on the second positioning structure (72).

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