Front infrared sighting telescope device and ranging calibration method

Abstract

The invention provides a front infrared sighting telescope device and a ranging calibration method. The front infrared sighting telescope device comprises an infrared sighting telescope body, a ranging module and an adjusting device. The distance measuring module is fixedly arranged on the infrared sighting telescope body, and the adjusting device is arranged at the end, away from a lens, of the infrared sighting telescope body. The adjusting device is used for installing the infrared sighting telescope body at the objective lens end of a white light sight and adjusting the position of the infrared sighting telescope body relative to the white light sight so that the distance measuring cursor of the distance measuring module can coincide with the division center of the white light sight. According to the front infrared sighting telescope device and the distance measurement calibration method, the convenience and accuracy of distance measurement and sighting can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of aiming equipment, and in particular to a front infrared sight device and a distance measurement calibration method. Background Art

[0002] With the increasing demand for riflescope functions, more and more front-mounted infrared riflescopes have integrated ranging functions. Front-mounted infrared riflescopes need to be installed on the objective end of a daylight sight. Due to the influence of processing dimensions and assembly tolerances, when observing through the front mirror, there will be a certain deviation between the position of the ranging cursor of the ranging module and the center of the white light sight's reticle. The two are not on the same axis. As a result, during the aiming process, it is necessary to first move the ranging cursor to the target for distance measurement. After measuring the distance, the center of the white light sight's reticle is moved to the target for aiming. The whole process is relatively cumbersome, affecting the user experience. In addition, the above operation must be performed every time for aiming, which is very inconvenient. Summary of the Invention

[0003] Based on this, the present application provides a front infrared sight device and a ranging calibration method to improve the operational inconvenience caused by the misalignment of the ranging cursor and the scale center of the white light aiming in the prior art.

[0004] To achieve the above objectives, the technical solution of the embodiment of the present application is implemented as follows:

[0005] On the one hand, an embodiment of the present application provides a front infrared sight device, comprising an infrared sight body, a ranging module, and an adjustment device; the ranging module is fixedly mounted on the infrared sight body, and the adjustment device is mounted on an end of the infrared sight body away from the lens;

[0006] The adjustment device is used to install the infrared sight body on the objective end of the white light sight and adjust the position of the infrared sight body relative to the white light sight so that the ranging cursor of the ranging module coincides with the center of the scale of the white light sight.

[0007] In one embodiment, the adjustment device includes a position adjustment structure, a connecting structure and a fixing structure;

[0008] The connecting structure is used to fix the infrared sight body to the objective lens end of the white light sight;

[0009] The position adjustment structure is used to adjust the position of the infrared sight body relative to the white light sight so that the ranging cursor of the ranging module and the center of the reticle of the white light sight coincide with each other;

[0010] The fixing structure is used to fix the infrared sight body relative to the white light sight after the desired position of the infrared sight body is adjusted.

[0011] In one embodiment, the position adjustment structure is an angle adjustment member, which is used to rotate the infrared sight body to a desired angle relative to the white light sight, or the position adjustment structure includes a first direction adjustment screw and a second direction adjustment screw, and the tightening directions of the first direction adjustment screw and the second direction adjustment screw are perpendicular to each other and are respectively perpendicular to the optical axis of the white light sight.

[0012] In one embodiment, the adjustment device and the infrared sight body are an integrated structure, or the adjustment device and the infrared sight body are two separate separate structures, and the adjustment device and the infrared sight body are detachably connected.

[0013] In one embodiment, the optical component of the infrared sight body has a visual magnification of 1.

[0014] On the other hand, an embodiment of the present application provides a distance measurement calibration method for a front infrared sight device, wherein the front infrared sight device is used to be installed at the objective end of a white light sight, and the distance measurement calibration method includes the following steps:

[0015] S1. Adjusting the position of the infrared image displayed by the front infrared sight device so that the infrared image and the white light image of the white light sight overlap;

[0016] S2. Adjust the position of the front infrared sight device relative to the white light sight so that the ranging cursor of the ranging module and the center of the graticule of the white light sight coincide with each other.

[0017] In one embodiment, step S1 specifically includes:

[0018] When observing the target scene only through the white light scope, a target point is determined in the target scene, and the position of the white light scope 2 is adjusted so that the target point in the white light image coincides with the center of the graticule of the white light scope;

[0019] When the front infrared sight device is installed on the objective lens end of the white light sight, the infrared image of the front infrared sight device is observed through the white light sight, and the position of the infrared image on the display screen is adjusted so that the target point in the infrared image coincides with the center of the scale of the white light sight.

[0020] In one embodiment, after step S2, the method further includes:

[0021] S3, detecting the deviation between the infrared image and the white light image, and if the deviation exceeds a preset value, executing step S4; if the deviation is within a preset range, maintaining the current state;

[0022] S4. Adjust the position of the infrared image on the display screen again so that the infrared image and the white light image overlap.

[0023] In one embodiment, the distance measurement calibration method further includes:

[0024] The display magnification of the infrared image is adjusted with the ranging cursor as the center point of image adjustment.

[0025] In one embodiment, the distance measurement calibration method further includes:

[0026] The ranging cursor is used as the division center, and division information is added to the video information of the infrared sight body.

[0027] The present application has at least the following beneficial effects: The present application provides a front-mounted infrared sight device, which includes an adjustment device. The adjustment device can adjust the position of the infrared sight body so that the ranging cursor of the ranging module and the center of the scale of the white light aiming device coincide with each other. After the ranging cursor is adjusted to coincide with the center of the scale, the user can aim while measuring the distance without repeating the operation, which simplifies the operation process of aiming and measuring the distance and improves the user experience. The ranging calibration method provided by the present application has a very simple and easy-to-operate adjustment process, allowing the user to aim and measure the distance at the same time, greatly improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the front infrared sight device and the white light sight after being assembled according to an embodiment of the present application.

[0029] Figure 2 Schematic diagram of a white light image and an infrared image according to an embodiment of the present application.

[0030] Figure 3 This is a schematic diagram of the infrared image presented after the front infrared sight device of an embodiment of the present application is installed on the white light sight.

[0031] Figure 4 A schematic diagram illustrating adjusting an infrared image and a white light image to an overlapping state by applying the distance measurement calibration method according to an embodiment of the present application.

[0032] Figure 5 A schematic diagram showing the process of adjusting the distance measurement cursor to coincide with the center of the scale using the distance measurement calibration method according to an embodiment of the present application.

[0033] Figure 6This is a schematic diagram of an infrared image when the magnification is 1 according to an embodiment of the present application.

[0034] Figure 7 To apply the distance measurement calibration method of the embodiment of the present application, Figure 6 Schematic diagram of the image after it is magnified to 2 times.

[0035] Figure 8 This is a schematic diagram of unprocessed image information according to an embodiment of the present application.

[0036] Figure 9 Schematic diagram of various partition information in an embodiment of the present application.

[0037] The meanings of the reference numerals in the accompanying drawings are as follows:

[0038] 1. Front infrared sight device; 11. Infrared sight body; 12. Ranging module; 13. Adjustment device;

[0039] 2. White light sight; 3. Gun; 31. Picatinny rail;

[0040] 4. Center of scale; 5. Target point; 6. Distance measurement cursor. DETAILED DESCRIPTION

[0041] The technical solution of this application is further elaborated in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as 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" as used herein includes any and all combinations of one or more of the relevant listed items.

[0043] In the description of this application, it should be understood that the terms "center," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0045] See also Figure 1 The front infrared sight device 1 of the embodiment of the present application includes an infrared sight body 11, a ranging module 12 and an adjustment device 13.

[0046] The ranging module 12 is fixed on the infrared sight body 11. For example, in this embodiment, the ranging module 12 is fixed on the side wall of the infrared sight body 11. The ranging module 12 and the infrared sight body 11 are an integrated non-detachable structure, or the ranging module 12 is an external accessory that can be fixedly installed on the infrared sight body 11 for use.

[0047] The adjustment device 13 is provided at the end of the infrared sight body 11 away from the lens. The adjustment device 13 is used to install the infrared sight body 11 on the objective end of the white light sight 2, and adjust the position of the infrared sight body 11 relative to the white light sight 2, so that the ranging cursor 6 of the ranging module 12 displayed on the display screen of the infrared sight body 11 coincides with the scale center 4 of the white light sight 2. The adjustment device 13 includes a position adjustment structure, a connection structure and a fixing structure. The connection structure is used to fix the infrared sight body 11 to the objective end of the white light sight 2, and the white light sight 2 is fixed to the leather rail 31 on the top of the gun 3. After the white light sight 2 is installed on the gun 3 and calibrated, it is generally not disassembled. The position adjustment structure is used to adjust the position of the infrared sight body 11 relative to the white light sight 2, so that the ranging cursor 6 of the ranging module 12 coincides with the scale center 4 of the white light sight 2. The fixing structure is used to fix the infrared sight body 11 relative to the white light sight 2 after the desired position of the infrared sight body 11 is adjusted, thereby preventing the infrared sight body 11 from moving. After the adjustment device 13 of this embodiment adjusts the position of the infrared sight body 11 and completes the adjustment of the overlap of the ranging cursor 6 and the graticule center 4, the infrared sight body 11 can be fixed by the fixing structure to prevent the infrared sight body 11 from moving. After the ranging cursor 6 and the graticule center 4 are adjusted, as long as the position of the infrared sight body 11 relative to the adjustment device 13 is fixed, the next time the same white light sight 2 is used for aiming, there is no need to adjust the device again, which is very convenient to use.

[0048] Specifically, the specific structure of the position adjusting structure, the connecting structure and the fixing structure is not limited, as long as the corresponding functions can be achieved, for example, the connecting structure can be achieved by using the clamping structure in the prior art, and the fixing structure can be achieved by using the locking structure. The position adjusting structure can be an angle adjusting piece, which can be a universal ball head adjusting structure, or other structures capable of adjusting the angle of the infrared sighting telescope body 11, or the position adjusting structure can also be a combination of two structures, including a first direction adjusting screw and a second direction adjusting screw, the tightening directions of the first direction adjusting screw and the second direction adjusting screw are perpendicular to each other and perpendicular to the optical axis of the white light sight 2. That is, two tightening screws are arranged in the circumferential direction of the objective lens of the white light sight 2, and the tightening directions of the two tightening screws are perpendicular to each other, so as to adjust the position of the infrared sighting telescope body 11 in different directions by rotating the tightening screws. The position adjusting structure is preferably a universal ball head adjusting structure, which is more convenient for adjusting the position of the infrared sighting telescope body 11.

[0049] In some embodiments, the adjusting device 13 and the infrared sighting telescope body 11 are integrated, that is, the adjusting device 13 and the infrared sighting telescope body 11 are an inseparable whole, that is, the front infrared sighting device 1 is an integrated whole. In some other embodiments, the adjusting device 13 and the infrared sighting telescope body 11 can also be two separate structures, and the adjusting device 13 and the infrared sighting telescope body 11 are detachably connected. For example, the adjusting device 13 is a separate component, and the infrared sighting telescope body 11 and the ranging module 12 are an integrated structure, and the adjusting device 13 is detachably connected to the infrared sighting telescope body 11 by clamping or the like, and the other end is detachably connected to the white light sight 2.

[0050] The optical magnification of the optical assembly of the infrared sighting telescope body 11 is 1, and in order to improve the aiming accuracy, the error value of the optical magnification of the optical assembly should be as small as possible.

[0051] The embodiment of the present application also provides a ranging calibration method, which can be used for the above-mentioned front infrared sighting device 1, and the front infrared sighting device 1 is used for being installed at the objective lens end of the white light sight 2. The ranging calibration method comprises the following steps:

[0052] S1, adjust the position of the infrared image displayed by the front infrared sighting device 1, so that the infrared image coincides with the white light image of the white light sight 2.

[0053] As shown in Figure 2 , Figure 2 Fig. A is a white light image, and Fig. B is an infrared image. Adjust the position of the infrared image so that the infrared image coincides with the white light image.

[0054] The infrared scope body 11 is provided with a display screen, which is used for displaying an infrared image. The entire area of the display screen (the large square in the middle of the figure) Figure 8 is larger than the display area of the infrared image (the small square in the inner layer of the figure) Figure 8 , so as to adjust the position of the infrared image and prevent the display area of the infrared image from exceeding the display area of the display screen. The position of the infrared image is adjusted, that is, the relative position of the infrared image on the display screen is adjusted. For example, the infrared image can be moved upward, downward, leftward or rightward through software.

[0055] The specific adjustment mode of the infrared image is as follows:

[0056] When the target scene is observed only through the white light scope 2, a target point 5 is determined in the target scene, and the position of the white light scope 2 is adjusted so that the target point 5 in the white light image coincides with the center of the division 4 of the white light scope 2, and then the position of the white light scope 2 is kept fixed.

[0057] After the front infrared scope device 1 is installed at the objective end of the white light scope 2, the infrared image of the front infrared scope device 1 is observed through the ocular lens of the white light scope 2, and the position of the infrared image in the display screen is adjusted so that the target point 5 in the infrared image coincides with the center of the division 4 of the white light scope 2, that is, the adjustment of the coincidence of the infrared image and the white light image is completed.

[0058] Specifically, the operation can be performed in the following example. First, as shown in the left drawing A of FIG. Figure 2 , the target scene is observed only by the white light scope 2, at this time the front infrared scope device 1 is not installed on the white light scope 2, a target point 5 is determined in the target scene, and the position of the white light scope 2 is adjusted so that the target point 5 in the white light image coincides with the center of the division 4 of the white light scope 2, and then the position of the white light scope 2 is kept fixed. After the front infrared scope device 1 is installed on the white light scope 2, the infrared image displayed by the infrared scope body 11 is observed through the ocular lens of the white light scope 2, and the target point 5 just set is found in the infrared image. If the target point 5 does not coincide with the center of the division 4, the position of the infrared image is adjusted through software so that the target point 5 coincides with the center of the division 4. If the target point 5 coincides with the center of the division 4, no adjustment is needed.

[0059] For example, as shown in FIG. Figure 2 , Figure 2 , the image in the circle frame of the left drawing A is the white light image, the large cross in the white light image is the division line, and the intersection of the cross is the center of the division 4. The image in the small square of the right drawing B is the infrared image, and the small cross cursor in the infrared image is the ranging cursor 6. Figure 2 In the drawing A of FIG., there is a small tree in the target scene, and the tip of the tree is located at the center of the division 4, that is, the tip of the tree is the determined target point 5, Figure 2 Figure A is the white light image obtained by observing the target scene with the white light sight 2 alone and making the target point 5 and the graticule center 4 coincide with each other. Figure 3 As shown in FIG, after the front infrared sight device 1 is installed on the objective end of the white light sight 2, the infrared image observed through the eyepiece of the white light sight 2 (at this time, the infrared sight body 11 blocks the light path of the white light sight 2, so only the infrared image can be seen in the eyepiece of the white light sight 2, and the white light image can no longer be seen). Figure 3 As can be seen in the figure, there is a certain deviation between the treetop of target point 5 in the infrared image and the center of the reticle 4 of the white light aiming 2. At this time, the position of the infrared image needs to be adjusted to make the treetop of target point 5 coincide with the center of the reticle 4 (as shown in the figure). Figure 4 As shown), after the target point 5 and the division center 4 coincide, Figure 4 It can be seen that the ranging cursor 6 and the division center 4 have not yet coincided.

[0060] S2. By adjusting the position of the front infrared sight device 1 relative to the white light sight 2, the ranging cursor 6 of the ranging module 12 and the division center 4 of the white light sight 2 are overlapped, and the infrared sight body 11 is fixed at the required angle position through the fixing structure.

[0061] The position of the infrared sight body 11 relative to the white light sight 2 can be adjusted by the position adjustment structure, so that the ranging module 12 also moves with the infrared sight body 11, so that the ranging cursor 6 moves with the infrared sight body 11. When the ranging cursor 6 and the scale center 4 coincide with each other (as seen from the eyepiece of the white light sight 2), the infrared sight body 11 can be adjusted. Figure 5 ), indicating that the infrared sight body 11 has reached the desired position and is secured there by the fixing structure to prevent movement. Moving the ranging cursor 6 via the position adjustment structure does not cause movement of the infrared image, and the target point 5 remains aligned with the reticle center 4.

[0062] Although the apparent magnification of the optical components of the infrared sight body 11 is 1, due to manufacturing and assembly errors, this apparent magnification will not be absolutely 1x; a deviation will exist from 1x. Because of this deviation, there will be a certain difference between the true size of the infrared image displayed at 1x and the actual size of the white light image. This difference can lead to a certain deviation in the image adjustment accuracy during cursor adjustment. The greater the apparent magnification deviation of the optical components of the infrared sight body 11, the greater the deviation in adjustment accuracy. Furthermore, due to manual operation, there will also be certain deviations during the adjustment of the infrared and white light images. For example, when adjusting the infrared and white light images to coincide, there may be a slight deviation between the target point 5 and the reticle center 4. The greater the positional deviation between the two images, the greater the deviation in adjustment accuracy. This deviation may not be obvious before the ranging cursor 6 is adjusted. However, after step S2 completes and the ranging cursor 6 is adjusted, this deviation will become more obvious. In order to improve the accuracy of the adjustment and reduce the existence of the adjustment precision deviation, the following steps S3 and S4 can be performed.

[0063] To improve the accuracy of the adjustment, the ranging calibration method may further include the following steps:

[0064] S3, detecting the deviation between the infrared image and the white light image. If the deviation exceeds a preset value, executing step S4; if the deviation is within the preset range, maintaining the current state.

[0065] S4. Adjust the infrared image again so that the infrared image and the white light image overlap.

[0066] The deviation between the infrared image and the white light image is detected or tested. If the deviation is excessive, exceeding a preset value (the preset value is not necessarily a numerical range; it can also be a rough psychological expectation; there is no fixed requirement, such as a deviation range that the user finds acceptable, i.e., within the preset value), the infrared and white light images need to be adjusted again. Since the infrared and white light images have already been adjusted once, the deviation between the two images is not too large, so only fine-tuning is required. Step S4 is actually the same as step S1, but because the deviation between the two images is smaller, step S4 adjustment is faster. Because the rangefinder cursor 6 has a larger coverage area (the positioning accuracy of the rangefinder cursor 6 is lower than the accuracy of the graticule center 4), the impact on the rangefinder cursor 6 during fine-tuning of the infrared image is almost negligible, eliminating the need for a second adjustment of the rangefinder cursor 6. This second adjustment of the infrared image further improves aiming accuracy.

[0067] Since the front infrared sight body 11 relies on the graticule assembly of the white light sight 2 to achieve grading, it does not need to be equipped with a grading assembly, which is beneficial to reducing the overall weight and cost of the device. However, since the front infrared sight body 11 does not have a standard point of the grading assembly as a reference, there is no center point to refer to when adjusting the image display magnification. If the image magnification is adjusted arbitrarily, the adjustment of step S1 will fail, causing the actual infrared image and the white light image to deviate again. This requires adjusting the front infrared sight device 1 from the beginning, which is very inconvenient. Therefore, the following steps can be added:

[0068] S5. Using the ranging cursor 6 as the center point of image adjustment, adjust the display magnification of the infrared image.

[0069] Figure 6 The position of the middle tree tip is the position of the ranging cursor 6. Figure 6 is the original image of the target scene (i.e. the display magnification is 1), Figure 7 is the image of the target scene magnified 2 times, Figure 7 It can be seen that the target point 5 treetop still coincides with the ranging cursor 6 and the graticule center 4. Using the ranging cursor 6 as the center point for image adjustment to perform zoom adjustment will not affect the aiming accuracy.

[0070] Since the overlap adjustment of the infrared image and the white light image has been completed when the display magnification is adjusted, and the overlap adjustment of the ranging cursor 6 and the scale center 4 has also been completed, the ranging cursor 6 is used as the center point of adjustment, that is, the scale center 4 is used as the center point of adjustment. In this way, no matter how the infrared image is magnified, the target point 5 will not deviate from the scale center 4, thereby maintaining the effectiveness of the previous adjustment steps and ensuring the accuracy of aiming.

[0071] like Figure 8 As shown, since the infrared sight body 11 does not have a grating component, when recording a video through the infrared sight body 11, there is no grating information on the video information, which makes it impossible for some users to experience the aiming process when making the video information, affecting the user's sharing experience. Since we have completed the adjustment process of the front infrared sight device 1 in the previous steps, we can also use the ranging cursor 6 as the grating center 4, create a grating information through software, and superimpose this grating information on the original video information, so that the video information can finally display the grating information, so that the user can experience the aiming process when watching the video information. Therefore, the ranging calibration method can also include the following steps:

[0072] S6. Use the ranging cursor 6 as the scale center 4 and add scale information to the video information of the infrared sight body 11.

[0073] In order to meet the different needs of different users and make the user's choices more diverse, the software can be used to create graticule information including a variety of graticule styles (such as Figure 9 As shown, users can select one or more styles of graticule information based on their usage habits to form the final video information. By adding graticule information to the video information, users can directly see the graticule center 4, also known as the aiming point, on the video screen when viewing the final video information, enhancing the user's sharing experience. The variety of graticule information styles available to users adds to their enjoyment.

[0074] The front-mounted infrared sight device of the embodiment of the present application improves the convenience of ranging and aiming operations by providing an adjustment device and combining it with a ranging calibration method. Through software design, scale information is added to the video information to improve the user experience. When electronically magnifying the infrared image, the ranging cursor is used as the center point for adjustment. This ensures that the target point remains at the center of the scale during the magnification process of the infrared image. In other words, the magnification center of the infrared image is coaxial with the scale center of the white light aiming sight. The magnification process does not cause the infrared image to shift relative to the white light image, and does not affect the aiming accuracy.

[0075] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0076] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A front infrared sight device, characterized in that: It comprises an infrared sight body (11), a distance measuring module (12) and an adjustment device (13); the distance measuring module (12) is fixed on the infrared sight body (11), and the adjustment device (13) is arranged at an end of the infrared sight body (11) away from the lens; The adjusting device (13) is used to install the infrared sight body (11) on the objective end of the white light sight (2), and adjust the position of the infrared sight body (11) relative to the white light sight (2) so that the ranging cursor (6) of the ranging module (12) and the division center (4) of the white light sight (2) coincide with each other.

2. The front infrared sight device according to claim 1, characterized in that: The adjusting device (13) comprises a position adjustment structure, a connecting structure and a fixing structure; The connection structure is used to fix the infrared sight body (11) to the objective lens end of the white light sight (2); The position adjustment structure is used to adjust the position of the infrared sight body (11) relative to the white light sight (2) so that the ranging cursor (6) of the ranging module (12) and the division center (4) of the white light sight (2) coincide with each other; The fixing structure is used to fix the infrared sight body (11) relative to the white light sight (2) after the desired position of the infrared sight body (11) is adjusted.

3. The front infrared sight device according to claim 2, characterized in that: The position adjustment structure is an angle adjustment member for rotating the infrared sight body (11) to a desired angle relative to the white light sight (2), or the position adjustment structure includes a first direction adjustment screw and a second direction adjustment screw, wherein the tightening directions of the first direction adjustment screw and the second direction adjustment screw are perpendicular to each other and are respectively perpendicular to the optical axis of the white light sight (2).

4. The front infrared sight device according to claim 1, characterized in that: The adjusting device (13) and the infrared sight body (11) are an integrated structure, or the adjusting device (13) and the infrared sight body (11) are two separate separate structures, and the adjusting device (13) and the infrared sight body (11) are detachably connected.

5. The front infrared sight device according to claim 1, characterized in that: The visual magnification of the optical component of the infrared sight body (11) is 1.

6. A distance measurement calibration method, characterized in that: For a front infrared sight device (1), the front infrared sight device (1) comprises an infrared sight body (11) and a distance measurement module (12), and is used for being installed at the objective end of a white light sight (2). The distance measurement calibration method comprises the following steps: S1, adjusting the position of the infrared image displayed by the front infrared sight device (1) so that the infrared image and the white light image of the white light sight (2) overlap; S2. By adjusting the position of the front infrared sight device (1) relative to the white light sight (2), the ranging cursor (6) of the ranging module (12) and the division center (4) of the white light sight (2) are made to coincide with each other.

7. The distance measurement calibration method according to claim 6, wherein: Step S1 specifically includes: When observing a target scene only through the white light sight (2), a target point (5) is determined in the target scene, and the position of the white light sight (2) is adjusted so that the target point (5) in the white light image coincides with the division center (4) of the white light sight (2); When the front infrared sight device (1) is mounted on the objective lens end of the white light sight (2), the infrared image of the front infrared sight device (1) is observed through the white light sight (2), and the position of the infrared image on the display screen is adjusted so that the target point (5) in the infrared image coincides with the center (4) of the division of the white light sight (2).

8. The distance measurement calibration method according to claim 6, wherein: After step S2, the method further includes: S3, detecting the deviation between the infrared image and the white light image, and if the deviation exceeds a preset value, executing step S4; if the deviation is within a preset range, maintaining the current state; S4. Adjust the position of the infrared image on the display screen again so that the infrared image and the white light image overlap.

9. The distance measurement calibration method according to claim 6, wherein: Also includes: The display magnification of the infrared image is adjusted using the ranging cursor (6) as the center point of image adjustment.

10. The distance measurement calibration method according to claim 6, wherein: Also includes: The distance measuring cursor (6) is used as the division center (4), and division information is added to the video information of the infrared sight body (11).

Images