Patent Publication Number: US-2022221249-A1

Title: Crossbow Scope with Built-In Laser Rangefinder

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims priority to, and the benefit of, U.S. Provisional Application No. 63/137,241, which was filed on Jan. 14, 2021 and is incorporated herein by reference in its entirety. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates generally to the field of crossbows. More specifically, the invention relates to a crossbow scope with built-in laser rangefinder. The scope features an integrated laser rangefinder, selectively activated via a button positioned on the crossbow to which the scope is attached. The laser emitted by a laser source of the scope is used by a range sensor for determining actual distance and tilt from a target and allows a user to maximize their accuracy while hunting, shooting competition and more. The scope can be integrated or retrofitted to existing crossbows. Accordingly, the present disclosure makes specific reference thereto. Nonetheless, it is to be appreciated that aspects of the present invention are also equally applicable to other like applications, devices and methods of manufacture. 
     BACKGROUND 
     By way of background, bows and arrows, spears, crossbows, guns, and artillery have been used for sport, hunting and military. More specifically, a crossbow is a ranged weapon using an elastic launching device consisting of a bow-like assembly called a prod. Crossbows are often used for hunting and recreational purposes and require a higher degree of stealth and sheer effort to get into position to make the shot. Therefore, precision and accuracy of the shot is difficult. This becomes more difficult due to absence of a rangefinder in conventional crossbows. Individuals generally end up missing a target which may cost them a trophy or a prey. A rangefinder is therefore desired by individuals for improving their shots before competitions and during hunts. 
     Using conventional crossbows can be dangerous for other individuals as the user using the crossbow may miss the target by a long distance. Individuals desire a device that can assist them with making an accurate shot. 
     Many individuals enjoy hunting using crossbows and the hunting experience with conventional crossbows is generally disappointing as the individuals can&#39;t find and accurately shoot long distance animals. Individuals desire a rangefinder that can be used with their crossbows and used for long distance shots. 
     Therefore, there exists a long felt need in the art for a rangefinder scope that can be used with conventional crossbows. There is also a long felt need in the art for a crossbow rangefinder scope that can be used for long distance shots. Additionally, there is a long felt need in the art for a scope that can be easily activated by a user using the crossbow. Moreover, there is a long felt need in the art for a rangefinder scope that can be used for all purposes ranging from competitions and target practice to hunting live animals. Further, there is a long felt need in the art for a rangefinder scope for crossbows that help individuals in improving their shots. Finally, there is a long felt need in the art for a crossbow rangefinder scope that enables users to adjust their shot to accommodate a long-range arc to hit a target at a long range distance and improve the accuracy of same. 
     The subject matter disclosed and claimed herein, in one embodiment thereof, comprises a crossbow scope with a built-in laser rangefinder. The crossbow scope features a laser rangefinder mechanism including a laser diode for transmitting a laser beam towards a target, a range sensor for detecting range and tilt of the crossbow scope relative to the target, a laser reticle for displaying laser beam projection relative to the target image on an eyepiece of the scope, an activation button disposed on the crossbow to which the scope is attached wherein the button is coupled to the scope and is configured to activate the scope when pressed. In use, users can press the button, activate the rangefinder and adjust their crossbow position to accommodate the laser reticle within the sight. 
     In this manner, the crossbow scope with built-in laser rangefinder of the present invention accomplishes all of the forgoing objectives and provides users with a crossbow rangefinder scope that can be used for long distance shots with conventional crossbows. The rangefinder uses a laser which can be used for all purposes ranging from competitions to hunting animals. The crossbow rangefinder scope enables users to adjust their shot to accommodate a long-range arc to hit a target at long range distances and improves the accuracy of same. 
     SUMMARY OF THE INVENTION 
     The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed innovation. This summary is not an extensive overview, and it is not intended to identify key/critical elements or to delineate the scope thereof. Its sole purpose is to present some general concepts in a simplified form as a prelude to the more detailed description that is presented later. 
     The subject matter disclosed and claimed herein, in one embodiment thereof, comprises a crossbow scope with a built-in laser rangefinder. The crossbow scope is designed to be integrated or alternatively retrofitted to a crossbow. The crossbow scope further comprising a laser rangefinder mechanism including a laser source for transmitting a laser beam towards a target, a range sensor for detecting range and tilt of the crossbow scope relative to the target, a laser reticle for displaying a laser beam projection relative to the target image on an eyepiece of the scope, an activation button disposed on the crossbow to which the scope is attached wherein the button is coupled to the scope and is configured to actuate the scope when pressed. The scope is configured to display a range value and tilt value of the target relative to the crossbow enabling a user to improve accuracy for a shot towards the target. 
     In yet another embodiment, a crossbow with an integrated crossbow scope is disclosed. The crossbow is designed to be used by hunters, professional shooters and others for making accurate and effective shots. The crossbow includes an integrated scope with a built-in laser rangefinder. The scope is attached to the crossbow using a rail, and is operable using a push button positioned on the crossbow. The integrated scope further includes a range sensor for detecting and displaying laser beam projection, a target image, a range between the scope and the target and a tilt of the scope relative to the target. The laser beam projection is automatically started when the push button positioned on the crossbow is pushed by a user. 
     In yet another embodiment, the scope with built-in rangefinder can be integrated or retrofitted to one of a rifle, a shotgun, a pistol, a crossbow, a bow or a paintball gun. 
     In yet another embodiment of the present invention, a laser rangefinder scope configured to help a user aim accurately at a target is disclosed. The scope is designed to be integrated or retrofitted to an aiming device. The scope further includes a laser source in the form of a laser diode, a range sensor for detecting range and tilt of the scope relative to the target, an activation button disposed on the aiming device to activate the laser source, an eyepiece in correlation with a reticle for displaying laser beam projection and a target image indicating the relative distance between the laser beam projection and the target image. 
     In yet another embodiment, the laser source emits one or more from Mode 5 Green laser, Mode 8 Green laser, Mode 5 Red laser and Mode 8 Red laser. 
     In yet another embodiment, the reticle is 104QD holographic reticle red dot and is replaceable. 
     In yet another embodiment, the scope is waterproof and fog proof, and is made from 1200G shockproof aluminum. 
     In yet another embodiment, the scope has an eyepiece lens and an objective lens, wherein both the lenses are high grade fully coated optical lenses. 
     In yet another embodiment, the eyepiece lens has resettable windage and elevation adjustments. 
     In yet another embodiment, the scope is attached to the crossbow using an integrated rail and is configured to move along the crossbow. 
     Numerous benefits and advantages of this invention will become apparent to those skilled in the art to which it pertains upon reading and understanding of the following detailed specification. 
     To the accomplishment of the foregoing and related ends, certain illustrative aspects of the disclosed innovation are described herein in connection with the following description and the annexed drawings. These aspects are indicative, however of but a few of the various ways in which the principles disclosed herein can be employed and are intended to include all such aspects and their equivalents. Other advantages and novel features will become apparent from the following detailed description when considered in conjunction with the drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The description refers to provided drawings in which similar reference characters refer to similar parts throughout the different views, and in which: 
         FIG. 1  illustrates a perspective view of one potential embodiment of a crossbow with an integrated rangefinder scope of the present invention in accordance with the disclosed architecture; 
         FIG. 2  illustrates a detailed view of one potential embodiment of the rangefinder scope of the present invention in accordance with the disclosed architecture; 
         FIG. 3  illustrates a block diagram of the various potential internal components of the rangefinder scope of the present invention that assists the user of the scope in identifying and displaying a range and taking an accurate shot in accordance with the disclosed architecture; 
         FIG. 4A  illustrates a perspective view of one potential embodiment of the rangefinder scope displaying the initial position of the laser beam reticle and the target in accordance with the disclosed architecture; 
         FIG. 4B  illustrates a perspective view of one potential embodiment of the rangefinder scope displaying the position of the laser beam pointed at the target in accordance with the disclosed architecture; and 
         FIG. 5  illustrates a perspective view of a user using a crossbow with one potential embodiment of the integrated rangefinder scope in accordance with the disclosed architecture. 
     
    
    
     DETAILED DESCRIPTION OF THE PRESENT INVENTION 
     The innovation is now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding thereof. It may be evident, however, that the innovation can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate a description thereof. Various embodiments are discussed hereinafter. It should be noted that the figures are described only to facilitate the description of the embodiments. They are not intended as an exhaustive description of the invention, and do not limit the scope of the invention. Additionally, an illustrated embodiment need not have all the aspects or advantages shown. Thus, in other embodiments, any of the features described herein from different embodiments may be combined. 
     As noted above, there exists a long felt need in the art for a rangefinder scope that can be used with conventional crossbows. There is also a long felt need in the art for a crossbow rangefinder scope that can be used for long distance shots. Additionally, there is a long felt need in the art for a scope that can be easily activated by a user using the crossbow. Moreover, there is a long felt need in the art for a rangefinder scope that can be used for all purposes ranging from competitions and target practice to hunting live animals. Further, there is a long felt need in the art for a rangefinder scope for crossbows that helps individuals in improving their shots. Finally, there is a long felt need in the art for a crossbow rangefinder scope that enables users to adjust their shot to accommodate a long-range arc to hit a target at a long range distance and improve the accuracy of same. 
     The present invention, in one exemplary embodiment, is a novel crossbow with an integrated crossbow scope. The crossbow is designed to be used by hunters, professional shooters and others for making accurate and effective shots. The crossbow features an integrated scope with a built-in laser rangefinder, the scope is attached to the crossbow using a rail and is selectively operable using a push or actuation button positioned on the crossbow. The integrated scope further includes a range sensor for detecting and displaying a laser beam projection, a target image, a range between the scope and the target, and a tilt of the scope relative to the target. The laser beam projection is automatically started when an actuation button positioned on the crossbow is pushed by a user. 
     Referring initially to the drawings,  FIG. 1  illustrates a perspective view of the crossbow with integrated rangefinder scope of the present invention in accordance with the disclosed architecture. As shown, the crossbow  100  with integrated rangefinder scope  102  is configured to maximize accuracy for a shot towards a target. The rangefinder scope  102  is designed to determine and display range and shot information by using a laser projection. The rangefinder scope  102  can be integrated to the crossbow  100  during the time of manufacturing of the crossbow  100  or can also be retrofitted to any existing crossbow. The scope  102  is also configured to scan a target towards which the crossbow is targeted. 
     More specifically, the crossbow  100  has the integrated rangefinder scope  102  that is positioned on the crossbow  100  using a rangefinder rail  104 . The rail  104  may allow the scope  102  to horizontally move along the crossbow rail  108  as per preferences of a user using the crossbow  100 . A rangefinder activation or actuation button  106  is positioned on the crossbow  100  that can be pushed by the user for activating the scope  102 . The scope  102  is selectively activated by pushing the button  106  and a display (as shown in  FIG. 2 ) of the scope  102  displays the target along with relevant information (as shown in  FIG. 4 ) to help the user in making a clear shot. 
     The crossbow  100  has a front-end portion  110  for shooting a shot towards the target. The front-end portion  110  can include a raiser and other conventional components of a crossbow and therefore are described here for brevity purposes. One or more strings  112  are used for shooting a shot towards the target and the shot is released using a trigger  114 . It should be understood that the trigger  114  can be activated by a user without activating the rangefinder scope  102 , thereby providing the user to selectively use the scope  102  by pushing the button  106 . The crossbow  100  has a butt stock  116  for holding the crossbow  100  during use. Although, crossbow  100  is shown in the present embodiment, it is to be appreciated that the scope  102  can be used with any shooting device capable of shooting towards a target. The scope  102  can be used for finding the range for linear motion, projectile motion or path, and more. Further, the crossbow  100  and the rangefinder scope  102  can be used by shooters during competition, shooting practice, hunting and other bow use. 
       FIG. 2  illustrates a detailed view of the rangefinder scope  102  of the present invention in accordance with the disclosed architecture. As stated earlier, the rangefinder scope  102  is activated by pressing the activation button  106  for helping the user to achieve maximum accuracy for a particular shot. The scope  102  has a rangefinder reticle  202  such as a dot reticle for displaying the fine gridlines as best shown in  FIG. 4 . The reticle display  202  helps the user to determine the target and accuracy of the shot by comparing the target and the shot. The scope  102  is also configured to display additional information such as range and tilt information of the crossbow and the target as best shown in  FIG. 4 . 
     The rangefinder scope  102  has an eyepiece lens  212  positioned towards the user of the crossbow  100  and is associated with a focus ring  204 . The focus ring  204  is used for modifying the zoom level of the eyepiece lens  212 . The eyepiece lens  212  is designed to allow the user to view the reticle  202  through the eyepiece lens  212 . The scope  102  has an objective lens  206  positioned opposite to the eyepiece lens  212 . The objective lens  206  is used for pointing and aiming towards the target along with the transmitted laser beam and helps the scope  102  in identifying the range and tilt. The processing of the transmitted laser beam and scanning of the target is performed internally in the rangefinder scope  102  using additional components as best described in  FIG. 3 . 
     For controlling the intensity and direction of the laser beam, a beam control button  208  is disposed on the scope  102 . The beam control button  208  can be pressed by the user for activating, deactivating and changing intensity of the laser beam. For changing the direction in both horizontal and vertical direction without changing the crossbow orientation, the scope  102  has an illumination adjustment knob  210 . The knob  210  can be used especially by hunters and other users where there can be space and motion constraints with respect to moving the crossbow for checking the target before firing a shot. The eyepiece  212  also helps in a user viewing a relative size of the target. Both the eyepiece  212  and the objective lens  206  provide variable magnification up to 5×. 
     The scope  102  can include the conventional windage knob for adjusting the reticle  202  left and right. Similarly, an elevation knob can be used for adjusting the reticle  202  up and down. 
       FIG. 3  illustrates a block diagram view showing internal components of the rangefinder scope  102  of the present invention that helps the scope  102  in identifying and displaying range for helping a user to take an accurate shot in accordance with the disclosed architecture. The scope  102  has a laser source emitter  306  in the form of a laser diode for generating a laser beam and transmitting same towards a target as best shown in  FIG. 5 . The laser source  306  is activated when controller  302  of the scope  102  receives a signal from the activation button  106  upon being pressed by a user. The laser beam transmitted by the laser source  306  is used for finding the distance of the crossbow distance from the target by range sensor  304 . 
     More specifically, the range sensor  304  calculates the time of flight of the laser beam hitting the target and received back by the range sensor  304 . The calculated range is also displayed through the eyepiece  212  of the scope as best shown in  FIG. 4 . The range sensor  304  is also configured to identify tilt of the crossbow  100  relative to the target. The range sensor  304  provides the calculated range and tilt values to the controller  302  which are displayed on the scope  102 . 
     Range sensor  304  may have an internal memory that can store data associated with an associated projectile device (e.g., bow, rifle) and various scientific principle data (e.g., gravitational constants, drag coefficients etc.) for calculating the range and tilt. 
     The laser source  306  is preferably placed in proximity to the reticle  202 . It should be appreciated that the reticle can be red dot elements, other reticles, or green dot elements. 
       FIG. 4A  illustrates a perspective view showing the rangefinder scope  102  displaying the initial position of the laser beam reticle and the target in accordance with the disclosed architecture. When the crossbow scope  102  is in an activated mode, the eyepiece of the scope  102  displays the laser beam projection  402  and a target image  404 . The relative distance between the reticle  402  and the image  404  provide an indication of the accuracy of the potential shot to be taken by a user. The reticle  202  provides vertical guidelines  406  and horizontal guidelines  408  that also aid in ascertaining an accurate potential shot by a user. The zoom level of the projection  402  and the target image  404  can also be changed by the user using the controls provided on the scope  102 . 
     The scope  102  can also be configured to display initial range value  410  of the target from the crossbow on which the scope  102  is integrated or retrofitted. The initial range value is continuously updated as the crossbow is moved or the orientation of the laser beam is changed by a user. The initial tilt value  412  of the target from the crossbow to help a user reorient the crossbow for an accurate shot is also displayed on the scope  102   
       FIG. 4B  illustrates a perspective view showing the rangefinder scope  102  displaying the position of the laser beam pointed at the target in accordance with the disclosed architecture. The user, based on the initial position of the laser beam projection as shown in  FIG. 4A , reorients the crossbow for making an accurate potential shot. In reorienting the crossbow, the laser beam projection  402 ′ is pointed at the target  404 , thereby ascertaining a potential accurate shot by the user. In the accurate positioning, the final range value  410 ′ and the final tilt value  412 ′ are also displayed. 
       FIG. 5  illustrates a perspective view of a user using the crossbow  100  with the integrated rangefinder scope  102  towards a target  504  in accordance with the disclosed architecture. The user  502  can use the crossbow  100  for improving accuracy while hunting, during competition, shooting practice and many more. The user  502  can activate the crossbow scope  102  using the activation button  106  (as shown in  FIGS. 1 &amp; 2 ) to adjust the crossbow  100  to accommodate the laser reticle within the sight. The laser can accommodate virtually any distance, even long-range shots. 
     The rangefinder scope  102  enables the user  502  to adjust the shot to accommodate a long-range arc to hit a target  504  at long range. The scope  102  helps the user with visual indications to make an accurate shot. 
     In one embodiment of the present invention, the laser reticle can be a physical reticle and alternatively, the reticle can be a virtual reticle projected on the eyepiece lens of the scope  102 . Further, in one embodiment, the user  502  can select to use one of the physical or virtual reticles. The laser may be visible to the human eye, but is preferably not visible. 
     Certain terms are used throughout the following description and claims to refer to particular features or components. As one skilled in the art will appreciate, different persons may refer to the same feature or component by different names. This document does not intend to distinguish between components or features that differ in name but not structure or function. As used herein “rangefinder scope”, “scope”, and “crossbow scope” are interchangeable and refer to the built-in rangefinder crossbow scope  102  of the present invention. Similarly, as used herein “crossbow”, “crossbow with built-in laser rangefinder”, and “crossbow with integrated laser rangefinder”, are interchangeable and refer to the crossbow with built-in laser rangefinder  100  of the present invention. 
     Notwithstanding the forgoing, the crossbow  100  and rangefinder crossbow scope  102  of the present invention can be of any suitable size and configuration as is known in the art without affecting the overall concept of the invention, provided that it accomplishes the above-stated objectives. One of ordinary skill in the art will appreciate that the crossbow  100  and the rangefinder crossbow scope  102  as shown in the FIGS. are for illustrative purposes only, and that many other sizes and shapes of the crossbow  100  and the rangefinder crossbow scope  102  are well within the scope of the present disclosure. Although the dimensions of the crossbow  100  and the rangefinder crossbow scope  102  are important design parameters for user convenience, the crossbow  100  and the rangefinder crossbow scope  102  may be of any size that ensures optimal performance during use and/or that suits the user&#39;s needs and/or preferences. 
     Various modifications and additions can be made to the exemplary embodiments discussed without departing from the scope of the present invention. While the embodiments described above refer to particular features, the scope of this invention also includes embodiments having different combinations of features and embodiments that do not include all of the described features. Accordingly, the scope of the present invention is intended to embrace all such alternatives, modifications, and variations as fall within the scope of the claims, together with all equivalents thereof. 
     What has been described above includes examples of the claimed subject matter. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the claimed subject matter are possible. Accordingly, the claimed subject matter is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Furthermore, to the extent that the term “includes” is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term “comprising” as “comprising” is interpreted when employed as a transitional word in a claim.