alignment mechanism

Abstract

The alignment mechanism uses two adjustment plates. A first adjustment plate pivots about a first adjustment axis, and a second adjustment plate is rotatable about a second adjustment axis. The first and second adjustment axes are perpendicular to each other. The first plate has a front portion through which the first adjustment axis passes and a rear portion having a first alignment surface and a tension spring fixed to the rear portion opposite the first alignment surface. The second adjustment plate has a front portion and a rear portion having a second alignment surface and a tension spring fixed between the second alignment surface and the rear portion of the first adjustment plate.

Description

[0001] REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Provisional Application No. 62 / 949,778, filed December 18, 2020, and is a non-provisional of that provisional application, which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to an alignment mechanism. In one embodiment, the present disclosure relates to an adjustment mechanism for a rangefinder. BACKGROUND

[0004] Rangefinders help a shooter determine the distance to a target. Rangefinders can be standalone or mounted to a firearm such as a rifle. A mounted rangefinder is first secured to the weapon and then adjusted so that the aiming point of the rangefinder is co-aligned with the aiming point of the weapon. However, upon firing, the recoil of the weapon tends to move the aiming point of the existing mounted rangefinder. The mounted rangefinder must be readjusted after each weapon firing. Also, when a rangefinder is mounted, the transport of the weapon causes the rangefinder to misalign. If the mounted rangefinder is not readjusted before firing, the rangefinder gives inaccurate readings. Readjusting the mounted rangefinder also consumes the shooter’s time.

[0005] For the above reasons, it is a great advantage to have a mounted rangefinder with an aiming point that does not move upon firing or transport of the firearm. Therefore, there is a great need for an alignment mechanism for a mounted rangefinder that can address these issues. SUMMARY

[0006] In one embodiment, the present disclosure provides an alignment mechanism. According to embodiments of the present disclosure, the alignment mechanism includes a first adjustment plate that pivots about a first adjustment axis, the first adjustment plate including a front portion and a rear portion, the first adjustment axis passing through the front portion, the rear portion having a first alignment surface and a tension spring fixed to the rear portion opposite the first alignment surface; a second adjustment plate rotatable about a second adjustment axis, the second adjustment plate including a front portion and a rear portion, the rear portion having a second alignment surface and a tension spring fixed between the second alignment surface and the rear portion of the first adjustment plate, wherein the first adjustment axis is perpendicular to the second adjustment axis.

[0007] In one embodiment, the first adjustment plate is a horizontal adjustment plate and the second adjustment plate is a vertical adjustment plate. In another embodiment, the second adjustment plate includes a pair of legs extending outwardly away from the front portion. In yet another embodiment, the second adjustment plate is configured to secure a range finder base. In a further embodiment, the second adjustment plate is connected to the first adjustment plate at the second adjustment axis. In an embodiment, the second adjustment plate is rotated relative to the first adjustment plate.

[0008] In another embodiment, the present disclosure provides a range finder. According to embodiments of the present disclosure, a range finder includes a housing; a range finder base contained within the housing; and an alignment mechanism contained within the housing, wherein the alignment mechanism includes a horizontal adjustment plate pivoted about a horizontal adjustment axis, the horizontal adjustment plate having a front portion and a rear portion, the horizontal adjustment axis passing through the front portion, the rear portion having a horizontal alignment surface and a horizontal tension spring secured between the rear portion and the housing opposite the horizontal alignment surface, and a vertical adjustment plate rotatable about a vertical adjustment axis, the vertical adjustment plate having a front portion and a rear portion, the rear portion having a vertical alignment surface, wherein a vertical tension spring is secured between the vertical alignment surface and the rear portion of the horizontal adjustment plate, wherein the horizontal adjustment axis is perpendicular to the vertical adjustment axis, and wherein the range finder base is secured to the vertical adjustment plate.

[0009] In one embodiment, the vertical adjustment plate is rotated relative to the horizontal adjustment plate about the vertical adjustment axis. In a further embodiment, the vertical adjustment plate is secured to the horizontal adjustment plate at the vertical adjustment axis.

[0010] In one embodiment, the range finder further includes a horizontal adjustment plunger passing through a first opening in the housing to contact the horizontal alignment surface. In another embodiment, axial movement of the horizontal adjustment plunger into the housing causes the horizontal tension spring to compress from a first compressed state to a second compressed state. In a further embodiment, axial movement of the horizontal adjustment plunger into the housing causes the horizontal adjustment plate to pivot about the horizontal adjustment axis from a first position to a second position.

[0011] In one embodiment, the range finder further includes a horizontal adjustment plunger passing through a first opening in the housing to contact the horizontal alignment surface. In another embodiment, axial movement of the horizontal adjustment plunger into the housing causes the horizontal tension spring to compress from a first compressed state to a second compressed state. In a further embodiment, axial movement of the horizontal adjustment plunger into the housing causes the horizontal adjustment plate to pivot about the horizontal adjustment axis from a first position to a second position.

[0012] In embodiments, the horizontal tension spring and the vertical tension spring are in compression over a range of motion of the horizontal adjustment plate and the vertical adjustment plate, respectively.

[0013] In embodiments, the rangefinder is configured to be affixed to a firearm. In embodiments, the firearm is a rifle. BRIEF DESCRIPTION OF DRAWINGS

[0014] Embodiments of the present disclosure are disclosed with reference to the drawings, and are for illustrative purposes only. The present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the drawings. The present disclosure is capable of other embodiments or of being practiced or carried out in other various ways. Like reference numbers are used to denote like components throughout the drawings. In the drawings:

[0015] Figure 1 is a left upper perspective view of an alignment mechanism according to embodiments of the present disclosure.

[0016] Figure 2 is a right upper perspective view thereof.

[0017] Figure 3 is a right lower perspective view thereof.

[0018] Figure 4 is a left upper perspective view of an alignment mechanism according to embodiments of the present disclosure. Figure 1 is a left upper perspective view of an alignment mechanism in use with a rangefinder chassis in a housing according to embodiments of the present disclosure.

[0019] Figure 5 is a right side perspective view thereof.

[0020] Figure 6 is a left bottom perspective view thereof.

[0021] Before the embodiments of the present disclosure are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The technology of the present disclosure is capable of other embodiments or of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. DETAILED DESCRIPTION

[0022] The devices and methods disclosed herein will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the present disclosure are shown. The devices and methods disclosed herein may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0023] Those skilled in the art will appreciate that the set of features and / or capabilities can be readily adapted to other permutations of standalone weapon sights, front or rear mounted clip-on weapon sights, and field-deployable optical weapon sights. Moreover, those skilled in the art will appreciate that various combinations of features and capabilities can be incorporated into additional modules for retrofitting any kind of existing fixed or variable weapon sight.

[0024] It will be understood that when an element or layer is referred to as being "on" or "connected to" or "coupled to" another element or layer, it can be directly on, connected, or coupled to the other element or layer. Alternatively, intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present.

[0025] Throughout the text, identical reference numerals refer to identical elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] It will be understood that, although the terms first, second, etc. can be used herein to describe various elements, components, regions, and / or sections, these elements, components, regions, and / or sections should not be limited to these terms. These terms are only used to distinguish one element, component, region, or section from another element, component, region, or section. Thus, a first element, component, region, or section discussed below could be termed a second element, component, region, or section without departing from the scope of the present disclosure.

[0027] To facilitate description, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for describing the relative location relationship between one element or feature and another element or feature shown in the drawings. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the drawings. For example, if the device in the drawings is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0028] The numerical ranges in this disclosure are approximate, and thus can include values outside the range unless otherwise indicated. Numerical ranges include all values from and including the lower and the upper values, in increments of one unit, provided that there is a separation of at least two units between any lower value and any higher value. As an example, if a compositional, physical or other property, such as, for example, molecular weight, melt index, temperature, etc., is from 100 to 1,000, it is intended that all individual values, such as 100, 101, 102, etc., and sub ranges, such as 100 to 144, 155 to 170, 197 to 200, etc., are expressly enumerated. For ranges including values less than one or including fractions of a unit, one unit is considered to be 0.0001, 0.001, 0.01 or 0.1 as appropriate. For ranges including single digits, one unit is typically considered to be 0.1. These are only examples of what is specifically intended and all possible combinations of numerical values between the lowest and highest values enumerated, and including the value endpoints, are to be considered to be expressly stated in this disclosure. Numerical ranges are provided within this disclosure for the relative amounts of components in a mixture, as well as for various temperature and other parameter ranges recited in the methods.

[0029] As used herein, the term "firearm" refers to any device that propels an object or projectile in a controllable manner. Firearms include, but are not limited to, handguns, single-shot handguns, rifles, machine guns, and Gatling guns, including single-shot firearms, semi-automatic firearms, and fully automatic firearms.

[0030] As used herein, the term "observation optics" refers to a device used by a shooter or observer to select, identify, or monitor a target. "Observation optics" may rely on visual observation of the target, or, for example, on infrared (IR) imaging, ultraviolet (UV) imaging, radar imaging, thermal imaging, microwave imaging, or magnetic imaging, radiation including X-rays, gamma rays, isotopic and particle radiation, night vision, vibration receivers including ultrasound, acoustic pulses, sonar, seismic vibrations, magnetic resonance, gravity sensors, broadcast frequencies including radio waves, television and cellular receivers, or other images of the target. The target image presented to the shooter by the "observation optics" device may be unchanged, or it may be enhanced, for example, by magnification, enlargement, subtraction, superposition, filtering, stabilization, template matching, or other means. The target selected, identified, or monitored by the "observation optics" may be within the shooter's line of sight, tangent to the shooter's line of sight, or the shooter's line of sight may be obstructed when the target acquisition device presents a focused image of the target to the shooter. The image of the target acquired by the "observation optical lens" can be, for example, analog or digital, and can be transmitted via, for example, video, physical cable or wire, IR, radio waves, cellular connection, laser pulse, optical, 802.11b, or other wireless transmissions using protocols such as HTML, SML, SOAP, X.25, SNA, etc., or Bluetooth. TM Images can be shared, stored, archived, or transmitted within a network of more than one shooter and observer using serial, USB, or other suitable image distribution methods. The term "observation optics" may be used interchangeably with "optical sight."

[0031] As used in this article, the term “external scene” refers to a real-world scene, including but not limited to the target.

[0032] As used herein, the term "shooter" applies to the operator who fires the shot or to an individual who observes the shot in cooperation with the operator who fires the shot.

[0033] In one embodiment, this disclosure relates to an alignment mechanism that allows a user to align a laser with a firearm. In another embodiment, this disclosure relates to an alignment mechanism incorporating horizontal adjustment that allows a user to align a laser with a firearm.

[0034] In one embodiment, this disclosure relates to an alignment mechanism that allows a user to align a laser with a firearm and an observation optics. In another embodiment, this disclosure relates to an alignment mechanism incorporating horizontal adjustment that allows a user to align a laser with a firearm and an observation optics.

[0035] Figures 1-3 An alignment mechanism 100 according to an embodiment of the present disclosure is shown. The alignment mechanism 100 includes two plates—a horizontal adjustment plate 10 and a vertical adjustment plate 20.

[0036] In the illustrated embodiment, the horizontal adjustment plate 10 has a generally dovetail shape, with the front portion 11a being wider than the rear portion 11b. The horizontal adjustment shaft 12 is located in the front portion 11a. An opening through the front portion 11a is coaxial with the horizontal adjustment shaft 12. A bolt 13 passes through the opening to secure the alignment mechanism 100 to the housing, but still allows pivotal motion of the alignment mechanism 100 about the horizontal adjustment shaft 12.

[0037] The rear portion 11b includes a horizontal alignment surface 15 on one side and a horizontal tension spring 18 on the opposite side. In the particular embodiment illustrated, the horizontal alignment surface 15 is on the left side of the rear portion 11b and the horizontal tension spring 18 is on the right side of the rear portion 11b. In further embodiments, the horizontal alignment surface 15 and the horizontal tension spring 18 can be interchanged. The rear portion 11b also includes a block 50 with an opening 51.

[0038] In one embodiment, one or more pins pass through the opening 51. In one embodiment, one or more pins pass through the opening 51 and connect the horizontal adjustment plate 10 to the housing, while still allowing pivotal motion of the horizontal adjustment plate about the horizontal adjustment shaft.

[0039] In the illustrated embodiment, the vertical adjustment plate 20 also has a generally dovetail shape, with the front portion 21a being wider than the rear portion 21b. The vertical adjustment shaft 22 is located near the transition from the front portion 21a to the rear portion 21b and is perpendicular to the horizontal adjustment shaft 12. An opening through the vertical adjustment plate 20 is coaxial with the vertical adjustment shaft 22. A pin 24 passes through the opening to allow rotational motion of the vertical adjustment plate 20 relative to the horizontal adjustment plate 10 about the vertical adjustment shaft 22.

[0040] The front portion 21a has an upper surface 30 that matches the geometry of the lower surface of the range finder chassis. Two openings 29 through the upper surface 30 allow the range finder chassis (not shown) to be secured to the alignment mechanism 100. A pair of legs 26 extend outwardly from the front portion 21a generally perpendicular to the vertical adjustment shaft 22. The distal ends of these legs 26 each have a securing structure 27 that secures the range finder chassis.

[0041] The rear portion 21b includes a vertical alignment surface 25 at its distal end, with a vertical tension spring 28 secured between the underside of the vertical alignment surface 25 and the horizontal adjustment plate 10. As Figures 1-3 illustrated, the vertical adjustment plate 20 is tilted relative to the horizontal adjustment plate 10. This is due in part to the particular shape of the range finder chassis of the alignment mechanism 100 to be used, for example, as discussed in Figures 4-6As shown and further described, the angle between the vertical adjustment plate 20 and the horizontal adjustment plate 10 is also affected by the relaxed state of the vertical tension spring 28, which supports the vertical adjustment plate 20, and in particular, the vertical alignment surface 25 is away from the horizontal adjustment plate 10, such that the front portion 21a is tilted toward the horizontal adjustment plate 10.

[0042] Figures 4-6 Show Figures 1-3 The alignment mechanism 100 is used in conjunction with the rangefinder chassis 300 and is contained within the housing 200 to form a rangefinder 400 for use with a firearm. In the illustrated embodiment, the housing 200 is configured as multiple components and held together using screws 205. However, in further embodiments, the housing may be configured with more or fewer components and / or held together using different structures or devices. The front of the housing 200 includes a window 201, the size of which is approximately equal to or larger than the front side of the rangefinder chassis 300.

[0043] The housing 200 further includes two openings—a first opening 210 on the side and a second opening 220 on the top. (See below) Figure 4 As shown, the horizontal adjusting plunger 215 engages with the first opening 210 in the housing 200. The inner end surface of the horizontal adjusting plunger 215 contacts the horizontal alignment surface 15 of the horizontal adjusting plate 10. Similarly, the vertical adjusting plunger 225 engages with the second opening 220 in the housing 200. The inner end surface of the vertical adjusting plunger 225 contacts the vertical alignment surface 25 of the vertical adjusting plate 20.

[0044] like Figures 4-6 As shown, the horizontal adjusting plunger 215 and the vertical adjusting plunger 225 are threaded within the opening, and their axial positions are controlled by simple screw adjustment. In other embodiments, different structures and / or mechanisms may be used to allow adjustment of the plunger's axial position, such as structures that allow adjustment of the plunger without tools.

[0045] To adjust the horizontal alignment of the rangefinder, i.e., to adjust the position of the rangefinder chassis 300, the axial position of the horizontal adjustment plunger 215 is changed. Moving the horizontal adjustment plunger 215 further into the housing 200 causes the inner end surface of the horizontal adjustment plunger 215 to push against the horizontal alignment surface 15. As the horizontal adjustment plunger 215 continues to push against the horizontal alignment surface 15, the horizontal tension spring 18 is compressed between the horizontal adjustment plate 10 and the housing 200, and the horizontal adjustment plate 10 pivots about the horizontal adjustment axis 12. In the particular embodiment shown, where the horizontal alignment surface 15 is on the left side of the horizontal adjustment plate 10 and the horizontal tension spring 18 is on the right side of the horizontal adjustment plate 10, increasing the compression of the horizontal tension spring 18, i.e., moving the horizontal adjustment plunger 215 further into the housing, causes the horizontal adjustment plate 10 to pivot counterclockwise. To adjust the aim in the opposite direction, the horizontal adjustment plunger 215 is moved outward, releasing the pressure on the horizontal alignment surface 15 and allowing the horizontal tension spring 18 to relax. Importantly, the horizontal tension spring 18 will never be in a fully relaxed state. To maintain alignment, there will always be a compression amount. In the embodiment shown, as the horizontal tension spring 18 is allowed to relax, it pushes against the horizontal adjustment plate 10 causing it to pivot clockwise about the horizontal adjustment axis 12. It should be understood that if the positions of the horizontal alignment surface 15 and the horizontal tension spring 18 were reversed, the opposite would occur.

[0046] To adjust the vertical alignment of the rangefinder, i.e., to adjust the position of the rangefinder chassis 300, the axial position of the vertical adjustment plunger 225 is changed. Moving the vertical adjustment plunger 225 further into the housing 200 causes the inner end surface of the vertical adjustment plunger 225 to push against the vertical alignment surface 25. As the vertical adjustment plunger 225 continues to push against the vertical alignment surface 25, the vertical tension spring 28 is compressed between the vertical adjustment plate 20 and the horizontal adjustment plate 10, and the vertical adjustment plate 20 rotates about the vertical adjustment axis 22. In the particular embodiment shown, increasing the compression of the vertical tension spring 28, i.e., moving the vertical adjustment plunger 225 further into the housing, causes the vertical adjustment plate 20 to rotate such that the front portion 21a of the vertical adjustment plate 20 is raised from the horizontal adjustment plate 10. To adjust the aim in the opposite direction, the vertical adjustment plunger 225 is moved outward, releasing the pressure on the vertical alignment surface 25 and allowing the vertical tension spring 28 to relax. Importantly, the vertical tension spring 28 will never be in a fully relaxed state. To maintain alignment, there will always be a compression amount. In the embodiment shown, as the vertical tension spring 28 is allowed to relax, it pushes against the underside of the vertical alignment surface 25 to cause the front portion 21a of the vertical adjustment plate 20 to rotate toward the horizontal adjustment plate 10.

[0047] By providing two different adjustment plates 10, 20, isolating the horizontal adjustment axis 12 and the vertical adjustment axis 22, and utilizing constant tension spring tension to fix the point of alignment, any movement of the range finder base 300 and the housing 200 due to recoil of the firearm or shipping returns to the fixed point of alignment. In other words, because the horizontal tension spring 18 and the vertical tension spring 28 are never in a fully relaxed state, there is always a counter force exerted on the adjustment plates 10, 20. As a result, if the range finder base 300 moves within the housing, the horizontal tension spring 18 and the vertical tension spring 28 push the adjustment plates 10, 20 back to their respective horizontal adjustment plunger 215 and vertical adjustment plunger 225 to return the range finder base 300 to its set position.

[0048] Although the alignment mechanism is described for use with a range finder base, it should be understood that other devices can also be used with the alignment mechanism.

[0049] While various embodiments of the alignment mechanism and range finder have been described in detail, it should be apparent that modifications and changes thereto are possible without departing from the spirit and scope of the application. It is to be understood that the foregoing description is by way of example only, and is not intended to limit the disclosed technology in any way, except as set forth in the following claims. Accordingly, the preceding description is to be construed as illustrative only and not as limiting the scope of the present invention.

Claims

1. An alignment mechanism for a rangefinder, comprising: A first adjusting plate, which pivots about a first adjusting shaft, includes a front portion and a rear portion, the first adjusting shaft passing through the front portion, the rear portion having a first alignment surface on one side and a tension spring fixed to the rear portion on the side opposite to the first alignment surface; wherein the first adjusting plate has a dovetail shape, and wherein the front portion is wider than the rear portion; A second adjusting plate, rotatable about a second adjusting axis, includes a front portion and a rear portion, the rear portion having a second alignment surface at its distal end and a tension spring fixed between the lower side of the second alignment surface and the rear portion of the first adjusting plate. Wherein, the first adjusting shaft is perpendicular to the second adjusting shaft; The first adjustment plate is a horizontal adjustment plate configured to adjust the horizontal alignment of the rangefinder, and the second adjustment plate is a vertical adjustment plate configured to adjust the vertical alignment of the rangefinder. The tension spring at the rear of the first adjusting plate is compressed between the first adjusting plate and the housing of the rangefinder to adjust the horizontal alignment; Within the respective range of motion of the first adjusting plate and the second adjusting plate, the tension springs of the first adjusting plate and the second adjusting plate are always in a compressed state.

2. The alignment mechanism according to claim 1, wherein, The second adjustment plate includes a pair of legs extending outwards away from the front portion.

3. The alignment mechanism according to claim 1, wherein, The second adjustment plate is configured to fix the rangefinder chassis.

4. The alignment mechanism according to claim 1, wherein, The second adjusting plate is connected to the first adjusting plate at the second adjusting shaft.

5. The alignment mechanism according to claim 1, wherein, The second adjusting plate rotates relative to the first adjusting plate.

6. A rangefinder, comprising: case; The rangefinder chassis is contained within the housing; as well as An alignment mechanism, contained within the housing, wherein the alignment mechanism includes... A horizontal adjustment plate, configured to adjust the horizontal alignment of the rangefinder and pivot about a horizontal adjustment axis, the horizontal adjustment plate having a front portion and a rear portion, the horizontal adjustment axis passing through the front portion, the rear portion having a horizontal alignment surface on one side and a horizontal tension spring fixed between the rear portion and the housing on the side opposite to the horizontal alignment surface, wherein the horizontal adjustment plate has a dovetail shape, and wherein the front portion is wider than the rear portion; and A vertical adjustment plate, configured to adjust the vertical alignment of the rangefinder and rotatable about a vertical adjustment axis, has a front portion and a rear portion, the rear portion having a vertical alignment surface at its distal end, wherein a vertical tension spring is fixed between the lower side of the vertical alignment surface and the rear portion of the horizontal adjustment plate. Wherein, the horizontal adjustment axis is perpendicular to the vertical adjustment axis, and The rangefinder chassis is fixed to the vertical adjustment plate; The horizontal tension spring is compressed between the horizontal adjustment plate and the housing to adjust the horizontal alignment; Within their respective ranges of motion, the horizontal and vertical tension springs are always in a compressed state.

7. The rangefinder according to claim 6, wherein, The vertical adjustment plate rotates relative to the horizontal adjustment plate around the vertical adjustment axis.

8. The rangefinder according to claim 6, wherein, The vertical adjustment plate is fixed to the horizontal adjustment plate at the vertical adjustment axis.

9. The rangefinder of claim 6, further comprising a leveling plunger that passes through a first opening in the housing to contact the level alignment surface.

10. The rangefinder according to claim 9, wherein, The axial movement of the horizontal adjusting plunger into the housing causes the horizontal tension spring to be compressed from a first compression state to a second compression state.

11. The rangefinder according to claim 9, wherein, The axial movement of the horizontal adjustment plunger into the housing causes the horizontal adjustment plate to pivot from a first position to a second position around the horizontal adjustment axis.

12. The rangefinder of claim 6, further comprising a vertical adjustment plunger that passes through a second opening in the housing to contact the vertical alignment surface.

13. The rangefinder according to claim 12, wherein, The axial movement of the vertical adjusting plunger into the housing causes the vertical tension spring to be compressed from a first compression state to a second compression state.

14. The rangefinder according to claim 12, wherein, The axial movement of the vertical adjustment plunger into the housing causes the vertical adjustment plate to rotate relative to the horizontal adjustment plate around the vertical adjustment axis from a first position to a second position.

15. The rangefinder of claim 6, configured to be fixed to a firearm.

16. The rangefinder according to claim 15, wherein, The firearm in question is a rifle.

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