Abstract:
A fixed pin bow sight is comprised of a bow sight having an attachment portion, a sight pin mounting portion and a sight pin having a plurality of sight tips on said sight pin. Each of the sight tips are predisposed on the sight pin and spaced to provide accurate targeting of an arrow shot from a bow having a particular shooting speed. The spacing between sight tips is defined by the desired targeting distances from the bow. For example, the uppermost sight tip may be configured for a target that is twenty yards away with subsequent sight tips provided for ten yard increments (e.g., 30, 40, 50 and 60 yards). The sight tips are configured to be vertically aligned relative to the ground when firing the bow so that as the distance from target is increased the appropriate sight tip moves from top to bottom of the sight pin.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   This invention relates generally to sights for archery bows and, more specifically, to bow sights having sight pin constructions that are pre-set for a particular bow so as to reduce the amount of adjustment necessary to sight in the bow sight to the bow. 
   2. Description of the Art 
   Archery bow sights utilizing a plurality of sight pins have been known in the art for many years. Typically, these sights use a bracket or other mounting structure for mounting the sight to a bow. The sight is commonly comprised of a pin plate, a pin guard, and a plurality of sight pins which are secured to the pin plate and extend into a sight window formed by the pin guard. The sight is mounted to a bow in a manner so that when the bow string is drawn, the archer can look through a peep sight provided in the bow string and align the tip of a pin attached to the sight with a target. For sights utilizing a plurality of sight pins having their tips vertically aligned, each individual sight pin is typically provided for aiming the bow at a target at a particular distance from the archer. For example, one pin may be positioned in the sight for aiming the bow at a target 50 yards from the archer while another pin may be positioned for a target that is at 70 yards distance. 
   An example of a bow sight known in the art is illustrated in  FIG. 1  in which a bow sighting device  10  is connected to an archery bow  12 . The sighting device  10  is comprised of a pin plate  14 , a pin guard  16  and a sight window  18  formed therebetween. A plurality of sight pins  20  are secured to the pin plate  14  by attachment members  22 , such as screws, which engage the sight pins  20  and extend through a slot  24  formed in the pin plate  14 . The sight pins  20  extend transversely from the pin plate  14  into the sight window  18 . The sighting device  10  is attached to a first bracket  28  by securement members  30 . The first bracket  28  may be adjustably connected to a second bracket  32  by securement members  34 , and the second bracket  32  may be adjustable secured to a third bracket  36  by screw members  38 , which attach it to the bow  12 . 
   In use, the archer typically aligns a peep sight positioned on or formed in the bowstring with one of the sight pins  20 . In order to properly sight in the sight to the bow (i.e., properly adjust sight pin to a particular distance from the target), each of the sight pins  20  is individually positioned and adjusted to correspond to a given distance (e.g., 20 yards, 40 yards, 60 yards, etc.) from the bow  12 . The sight pins  20  allow the archer to better position the aim of the arrow to compensate for target distance and trajectory. Thus, the archer must position him/herself a specific distance from the target (e.g., 20 yards) and shoot several arrows at the target while adjusting the 20 yard sight pin until the position of the 20 yard sight pin corresponds to arrows hitting the center of the target. The same procedure is repeated for each of the other sight pins (e.g., 30 yard pin, 40 yard pin, 50 yard pin, etc.). In most cases, upon repeated shooting, the sight pins can be fairly closely positioned relative to the bow sight at positions that provide acceptable targeting. As the distance from the target increases, however, it becomes increasingly more difficult to sight in the pins as the shooters ability to hold the bow steady during targeting becomes more important. That is, at close range, slight movement of the bow during a shot will have less effect on the arrows trajectory relative to the target than will similar movements at long range. Thus, while the error of the position of each sight pin may be approximately equal, such errors are not as detrimental at close range, but are exacerbated as the distance-to-target increases. 
   Some bow sights provide a single sight pin. Such single pin bow sights are provided for target practice where the distance from the target does not change. Single pin bow sights are also used in sights commonly referred to as pendulum sights that are used in conjunction with tree stands and the like where the hunter is positioned above the target and is aiming in a severely downward direction at the ground to animals below the hunter. In such a situation, the distance to target, while not fixed, is usually within a small range thus suited for a single pin sight arrangement. 
   Once a single pin sight is adjusted for a particular distance-to-target, the sight is not suited for being used at other ranges. It would be desirable, however, to provide a fixed pin arrangement that can also be used at other ranges without requiring adjustment or re-sighting of the sight pin to accommodate such other distances-to-target. In addition, it would be advantageous to provide a single sight pin structure having multiple sight points configured for attachment to conventional type bow sights. 
   SUMMARY OF THE INVENTION 
   Accordingly, a fixed pin bow sight is comprised of a bow sight having an attachment portion, a sight pin mounting portion and a sight pin having a plurality of sight tips on said sight pin. Each of the sight tips are predisposed on the sight pin and spaced to provide accurate targeting of an arrow shot from a bow having a particular shooting speed. The spacing between sight tips is defined by the desired targeting distances from the bow. For example, the uppermost sight tip may be configured for a target that is twenty yards away with subsequent sight tips provided for ten yard increments (e.g., 30, 40, 50 and 60 yards). The sight tips are configured to be vertically aligned relative to the ground when firing the bow so that as the distance from target is increased the appropriate sight tip moves from top to bottom of the sight pin. 
   Another important aspect of the present invention is to ensure that the distance from the sight tips to the peep sight, which is dependent upon the draw of the bow is at a predetermined distance. That is, in order to make the sight tips accurate representations of the target at various distances, the distance from the sight tips to the eye of the archer is factored into the formation of the distance between adjacent sight tips. Because many bows having different draw lengths that may be customized to the archer, the sight also includes brackets or other attachment features that allows the sight to be adjusted either toward or away from the eye of the user at full draw of the bow in order to be positioned at the optimal distance. 
   In one embodiment, the distance between the sight tips and the peep sight is approximately 26.5 inches. The spacing between sight tips are determined in part based upon this 26.4 inch distance. In order to provide precise sighting of the sight pins for a given bow speed, the distance between sight tips is based upon a peep sight to sight tip distance of approximately 26.4 inches. Such accuracy, however, is not necessary for most practical purposes such as hunting. After the first or uppermost sight tip is sighted in, the remaining sight pins will relatively accurately reflect the other given distances to target. That is, even if the distance from the sight tips to the peep sight is something other than 26.4 inches, such variations in the sight tips to peep sight distance may only have an inch or two difference in the accuracy of the sight tips for a given distance to target. Such variation in accuracy (e.g., one to two or more inches) will still likely accomplish a hit in a vital organ of an animal. Thus, in practicality, the sight may be fixed relative to the bow and not necessarily adjustable thereto in a direction relative to the peep sight given the fact that most bows have a draw at or near about 26 inches. 
   The spacing between sight tips is calculated using conventional ballistic formulas. Such formulas can be found in an article entitled “Exterior Ballistics of Bows and Arrows” by W. J. Rheingans, herein incorporated by this reference. Unlike conventional multiple pin bow sights which require each sight pin to be individually sighted, the bow sight of the present invention only requires sighting in of one of the sight tips. Once one of the sight tips is properly sighted to a target at the appropriate distance for the particular sight tip, the remaining sight tips are automatically sighted in. 
   In order to sight in the sight pin of the present invention, the bow sight is attached to the riser of the bow and adjusted so that the sight pin will be a particular distance from the peep sight on the bow string. The bow sight is then adjusted to provide proper targeting of a target that is a distance corresponding to the sight tip. For example, if the top sight tip is configured for a distance-to-target of 20 yards, the archer can position him/herself 20 yards from the target and shoot arrows at the target. The position of the sight relative to the riser or the position of the sight pin relative to the sight can then be adjusted vertically or horizontally as required to properly sight in the first sight tip. Once, the first sight tip is set, the remaining sight tips are automatically sighted in as they are fixed relative to the first sight tip. 
   The sight pin of the present invention may be integrally formed with the sight or may be a separate component that is attached to the sight. 
   In the case where the sight pin is a separate component, the sight pin may be configured to fit into conventional type bow sights that utilize multiple sight pins. As such, the sight pin of the present invention may be configured to replace conventional sight pins without requiring replacement of the entire sight in order to utilize the novel features of the present invention. 
   The sight pin of the present invention is further configured to match the shooting speed of the bow. For example, some bows shoot at 250 feet per second while others will shoot at 280 feet per second. The speed of the bow can be easily determined by standard bow speed calculation equipment. In addition, most compound type bows allow for adjustment of the bow speed. Thus, sights or sight pins in accordance with the present invention can be configured to a few standardized bow speeds and the bow adjusted to match the sight or sight pin. 
   In one embodiment, the sight pin is comprised of a vertical element having a plurality of fiber optic elements coupled to the sight pin each at a particular position along the height of the sight pin. The fiber optic elements extend from the sight pin through the pin guard of the sight, wrap around a portion of the pin guard and are attached to the pin guard at another location. By increasing the length of the fiber optic elements, their individual exposure to ambient light is increased to help increase the brightness of each sight tip. 
   In another embodiment, the sight pin is configured to mate with a sight in a more conventional fashion by mating with a slot in the pin plate of the sight. A plurality of sight pins are fixed relative to a mounting portion with each of the sight pins coupled or mounted to a single mounting structure. 
   In another embodiment, the sight pin is configured to mate with a conventional type bow sight but includes a single vertical pin horizontally supported with a mounting structure. If fiber optic sighting elements are utilized, the fiber optic members may have various configurations that expose a portion of their length to ambient light in order to increase their brightness for viewing by the archer. 
   By providing a sight pin with multiple sight tips in a pre-configured arrangement, the sight tips can be relatively precisely (within manufacturing tolerances) placed along the sight pin at the appropriate locations. Such a configuration is vastly more accurate than requiring the user to sight in each individual sight pin relative to the sight where such pins can be off from the correct position by orders of magnitude greater than that which can be achieved through manufacturing. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a perspective view of a prior art archery sight illustrating its elements of construction and its attachment to an archery bow; 
       FIGS. 2A ,  2 B,  2 C,  2 D and  2 E are front, cross-sectional side, end, top and bottom views of a first embodiment of a fixed pin bow sight in accordance with the principles of the present invention; 
       FIG. 3  is a front view of a second embodiment of a fixed pin bow sight in accordance with the principles of the present invention; 
       FIG. 4  is a front view of a third embodiment of a fixed pin bow sight in accordance with the principles of the present invention; 
       FIG. 5  is a front view of a fourth embodiment of a fixed pin bow sight in accordance with the principles of the present invention; 
       FIG. 6  is a front view of a fifth embodiment of a fixed pin bow sight in accordance with the principles of the present invention; 
       FIGS. 7A and 7B  are front and side views of a first embodiment of a single sight pin having multiple sight tips in accordance with the principles of the present invention; 
       FIG. 8  is a side view of a second embodiment of a single sight pin having multiple sight tips in accordance with the present invention; 
       FIGS. 9A and 9B  are front and end views, respectively, of a third embodiment of a single sight pin having multiple sight tips in accordance with the principles of the present invention; 
       FIGS. 10A and 10B  are front and side views, respectively, of a fourth embodiment of a single sight pin having multiple sight tips in accordance with the principles of the present invention; 
       FIGS. 11A and 11B  are front and side views, respectively, of a fifth embodiment of a single sight pin having multiple sight tips in accordance with the principles of the present invention; 
       FIG. 12  is a side view of a first embodiment of a mounting structure for mounting a bow sight in accordance with the principles of the present invention; 
       FIG. 13  is a side view of a second embodiment of a mounting structure for mounting a bow sight in accordance with the principles of the present invention; 
       FIGS. 14A and 14B  are front and partial cross-sectional side views, respectively, of a sixth embodiment of a sight pin in accordance with the principles of the present invention; and 
       FIGS. 15A and 14B  are front and side views, respectively of a seventh embodiment of a fixed pin bow sight in accordance with the principles of the present invention. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
     FIGS. 2A–2E  illustrate a first embodiment of a bow sight, generally indicated at  100 , in accordance with the principles of the present invention. The sight  100  is comprised of a pin guard portion  102  for protecting the sight pin  103  and a pin mounting portion  104  for mounting the sight  100  to a mounting bracket (not shown). In this embodiment, the sight pin  103  is a separate component from the rest of the sight  100  and is attached to a pin mounting portion  106  as with fasteners  108  and  110 . A leveling mechanism  107 , such as a leveling bubble, is attached to the sight  100  proximate the pin mounting portion  106 . The leveling bubble  107  is provided to allow an archer to ensure that the sight  100  is properly horizontally oriented when aiming the sight at a target to provide more accurate targeting. 
   The sight pin  103  is comprised of a base portion  112  configured for mounting the sight pin  103  to the pin mounting portion  106  of the sight  100  and for providing structural stability to the sighting portion  114  of the sight pin. The base portion is provided with a pair of internally threaded bores  116  and  118  for engaging with externally threaded fasteners  108  and  110  to mount the sight pin  103  to the pin mounting portion  106 . 
   The sighting portion  114  is comprised of an elongate post member with a plurality of sight tips  120 ,  121 ,  122 ,  123  and  124  attached thereto. Typically, a sight pin is provided with a single aiming structure, such as a bead or the exposed end of a fiber optic element, provided on the “tip” of the sight pin. The term sight tip is thus commonly used to refer to this part of the sight pin that is used as the aiming reference. In the present invention, however, the term sight tip refers to the aiming reference regardless of its position on the sight pin. Thus, reference herein to a plurality of sight tips is a referring to the plurality of aiming references, even those not positioned on the “tip” of the sight pin. 
   Each of the sight tips  120 – 124  is comprised of the exposed end of a fiber optic member. The fiber optic members  125 ,  126 ,  127 ,  128  and  129  extend through transversely extending bores in the sight pin  103  with their exposed ends terminating on the face  130  of the sight pin  103 . The fiber optic members  125 – 129  extend from the back  132  of the sight pin  103  through holes in the sight  100  proximate the pin attachment portion  106 . A circumferential channel  134  extends around the perimeter of the pin guard  102  for containing the fiber optic members  125 – 129 . Thus, the fiber optic members are positioned in the channel  135  and wrap around a portion of the guard  102 . A plurality of holes are provided in the top of the guard  102  for receiving the distal ends of each of the fiber optic elements  125 – 129 . The distal ends are provided with a bead, as by a melting process, in order to hold the distal ends of the fiber optic members  125 – 129  relative to the guard  102 . The distal ends may also be glued into the holes or just held flat against the channel  135  as with an adhesive or an adhesive tape without insertion into the holes. By wrapping the fiber optic members  125 – 129  around the guard  102  in a manner that exposes a large surface area of the fiber optic elements  125 – 129  to ambient light, the light gathering potential for each fiber optic element  125 – 129  is significantly increased. It is also contemplated that a luminescent material, such as a luminescent tape or coating may be applied to or positioned in the channel  134  between the channel and the fiber optic elements  125 – 129  to increase the luminance of the fiber optic elements  125 – 129  in low light conditions. 
   Each of the sighting ends  140 ,  141 ,  142 ,  143  and  144  provided on the face  130  of the sight pin  103  are spaced according to provide the proper target or aiming reference for a particular distance-to-target. Thus, each of the sight tips  141 – 145  represent a specific target distance (e.g., 20, 30, 40, 50 and 60 yards, respectively). 
     FIGS. 3 ,  4 ,  5  and  6  illustrate various embodiments of a bow sight in accordance with the present invention.  FIGS. 3 and 4  show bow sights, generally indicated at  200  and  220 , respectively, that are preferably formed form a polycarbonate or other plastic material that is molded, as by injection molding processes, into the desired shape. The bow sight  200  is comprised of a mounting portion  202  that allows for windage (i.e., lateral or horizontal adjustment) relative to the bow and includes markings  204  thereon for providing reference of the mounting portion during adjustment relative to a mounting bracket (not shown). The mounting portion  202  essentially forms an elongate post member integrally formed with a pin guard portion  206 . The pin guard portion  206  encircles a sight pin  208  to protect the sight pin  208  from external obstacles that may be encountered when moving through vegetation during a hunt. 
   The sight pin  208  is comprised of an elongate post member having a sight tip portion  210  and a base portion  212 . The base portion  212  is attached to the guard portion  206  by threaded fastener, an adhesive, or other mechanical attachment methods and devices known in the art. The distance between each individual sight tip is calculated using ballistic formulas. For five sight tips representing 20, 30, 40, 50 and 60 yards, respectively, a bow that will shoot a given arrow at 250 feet per second, and a sight tip to peep sight distance of 26.4 inches when the string is fully drawn, the center of the first sight tip would be 0.025 inches from the top of the sight tip portion. The center of the second tip would be spaced 0.165 inches from the top of the sight tip portion  210 . The center of the third tip would be spaced 0.347 inches from the top of the sight tip portion  210 . The center of the fourth tip would be spaced 0.547 inches from the top of the sight tip portion  210 . Finally, the center of the sixth tip would be spaced 0.760 inches from the top of the sight tip portion  210 . While the measurements are taken from the top of the sight pin, the distances between centers of the sight tips can easily be determined by subtracting 0.025 inches from each of the foregoing measurements. 
   The position of the sight tips relative to the sight pin can be quite precisely positioned using manufacturing techniques known in the art. The tolerances for manufacture can easily be on the order of +/−0.002 inches or more. For example, injection molding, milling and other manufacturing techniques can produce tolerances much greater than that listed above. Such small tolerance for manufacturing produce much closer results to the desired sight tip location along the pin than can be achieved by individual sight pin placement techniques known in the art. Indeed, the spacing between sight tips is orders of magnitude more accurate than manual pin placement with conventional sights. 
   As shown in  FIG. 4 , the same sight configuration may be employed to accommodate a bow shooting at a higher velocity, in this case 280 feet per second. Because the sight pin  222  is made as a separate component from the sight guard  224  a manufacturing savings cost is realized. That is, it is not necessary to manufacture a complete sight for every bow speed. Only the sight pin  222 , and more specifically, the spacing between sight tips  224 ,  225 ,  226 ,  227  and  228  are different. The spacing from center-to-center of the first  224  and second  225  sight tips is approximately 0.100 inches. The center-to-center distance between the first  224  and third  226  sight tips is approximately 0.238 inches. The center-to-center distance between the first  224  and fourth  227  sight tips is approximately 0.393 inches. The center-to-center distance between the first  224  and fifth  228  sight tips is approximately 0.559 inches. Thus, to accommodate a bow that shoots a given arrow at a particular speed, a sight pin can be selected that is nearest the speed of the bow. For reference and to be in relative proportional size to the size of the sight, the height of the sight pin from the bottom of the base portion to the top is approximately one inch. The length of the sight may also vary based upon the speed of the bow. Thus, depending upon the design of the sight and the sight pin, the length of the sight pin may be of a different length. 
   In addition, by manufacturing a range of sight pins for various typical bow speeds, for example, 250 fps, 260 fps, 270 fps and 280 fps, a sight pin can be selected that is nearest the bow speed. It is also possible to tune the bow to adjust the speed of the bow in order to get closer to the particular sight pin configuration. If, for example, a bow is shooting at 265 fps, the bow could be adjusted up to shoot at 270 fps or down to shoot at 260 fps. The sight having the appropriate sight pin for that bow speed (i.e., 260 fps) could then be selected. 
   In  FIG. 5 , the sight pin  242  and the sight guard  244  of the sight  240  may be separate components as previously described or integrally formed as by casting, molding or machining. The sight  240  may be formed from plastic, aluminum, or other materials known in the art and formed by various techniques known in the art. The sight pin  242  is configured for a bow speed of 250 feet per second and therefore has sight tip spacing similar to that shown in  FIG. 3 . Likewise, the bow sight  260  of  FIG. 6  has a configuration similar to that of  FIG. 5  but has a pin  262  configured for a bow speed of 280 feet per second. 
   For other bow speeds, such as 260 feet per second and 270 feet per second, the distance between sight tips can be calculated. Generally, the faster the speed of the bow, the closer the sight tips are together and thus, the shorter the sight pin for a given sight becomes. With a sight tip to peep sight distance of 26.4 inches, a sight pin for a 260 feet per second bow speed would have sight tips at a spacings of 0.250, 0.153, 0.318, 0.500, and 0.697 relative to the top of the sight pin. For a sight pin for a bow speed of 270 feet per second the distances of the centers of the sight tips would be approximately 0.250, 0.138, 0.288, 0.456, and 0.636 relative to the top of the sight pin. 
   Referring now to  FIGS. 7A and 7B , a sight pin, generally indicated at  300 , is comprised of an elongate member  302  having a base portion  304  and an upright pin portion  306 . The base portion  304  is provided with a pair of internally threaded holes  308  and  310  for attachment to a pin guard or other bow sight structure. The base portion  204  is wider than it is deep to provide lateral support for the pin portion  306 . Also, the base portion  304  is provided with tapered sides  312  and  314  that prevent rigidly hold the pin portion  306  in place. By being tapered until engagement with the pin portion  306 , stresses at the intersection between the pin portion  306  and the base portion  304  are reduced so that the pin portion  302  is less likely from fracturing or breaking off at this junction. In addition, with the use of a pair of fasteners engaging the holes  308  and  310 , the pin  300  can be securely held in place. 
   The pin portion  306  is provided with a plurality of transversely extending apertures or bores  321 ,  322 ,  323 ,  324  and  325  that extend from the front  326  of the pin portion  306  to the back surface  328  of the pin portion  328 . Each hole  321 – 325  is configured to receive a fiber optic member (not shown) that extends through each hole and terminates proximate the front surface  326  of the pin portion  306 . In this manner, the sight tips are exposed and visible by a user along the face  326  of the pin portion  326 . It is also contemplated that the holes  321 – 325  could support opaque sight tip members such as brass members having painted tips that are visible at the face  326 . Thus, while the present invention has been described with reference to the use of fiber optic elements, it is also contemplated that the sight indicia provided along the sight pin may by comprised of any material. For example, the sight pin may be formed from a brass element with the individual sight tips painted on the face  326  of the sight pin  300 . Thus, it is not necessary to form the sight pin from any particular material so long as the sight tips or individual sighting indicia or indicators are separately visible by a user. 
   As shown in  FIG. 8 , the depth of the sight pin  350  may be increased to hold a plurality of fiber optic elements  351 ,  352 ,  353 ,  354  and  355  therein. By forming the sight pin portion  356  of a transparent material, the fiber optic elements  351 – 355  can gather light through the pin portion  356 . Also, the longer the fiber optic element, the more light exposure the fiber optic elements  351 – 355  can receive in order to illuminate the ends  361 – 365  of the fiber optic elements  351 – 355 . In addition, the pin portion  356  or the entire pin structure may be formed from a self-illuminating material such as a glow-in-the dark material in order to illuminate the fiber optic elements in low light conditions. By encapsulating each fiber optic element along its length with a glow in the dark material, the light captured by the fiber optic element is significantly increased, as opposed to placing glow-in-the dark material only at one end. 
   In  FIGS. 9A and 9B , a sight pin arrangement, generally indicated at  400  is illustrated. The sight pin assembly  400  is configured to be attachable to a preexisting bow sight known in the art, such as those sold by other manufacturers. The sight pin assembly  400  is comprised of a plurality of precisely spaced sight pins  401 ,  402 ,  403 ,  404  and  405  that are fixedly attached to a sight pin base member  410 . The sight pin base  410  is configured to be attached to a conventional bow sight (not shown) as with a tongue  412  and groove (not shown) arrangement and threaded fasteners (not shown) that can be inserted into counterbored holes  414  and  416  and threaded into corresponding nuts to hold the base  410  to the sight. Each sight pin  401 – 405  is held in a relatively precise position along the base  410  and thus depends outwardly therefrom. In order to properly sight in the sight pin arrangement  400 , the base portion  410  is vertically slid relative to the sight until the uppermost sight pin  401  is sighted, whether that be for 20 yards, 25 yards, etc. Once the first pin is properly sighted, the remaining pins are automatically sighted since there position relative to the base member  410  has be predetermined based on ballistic calculations for a given bow speed. 
   As specifically shown in  FIG. 9B , each sight pin, such as the sight pin  401 , is configured similarly to sight pins known in the art with a looped segment  420  of fiber optic material having beaded ends  421  and  422  for holding the fiber optic segment  420  relative to the pin arm  424 . It is also noted (as represented by dashed lines) that the base portion  410  may be provided with a longitudinally extending groove for receiving a corresponding tongue portion provided by the pin plate of the sight (not shown). 
   Referring now to  FIGS. 10A and 10B , a sight pin  500  is illustrated in relation to a bow sight  502  (shown in dashed lines). The sight pin  500  is comprised of an elongate pin member  504  positioned vertically within the sight  502 . The elongate pin member  504  is supported within the sight window  506  by a pair of struts  508  and  510 . The struts  508  and  510  are connected to an attachment member  512  configured for attaching the sight pin  500  to a bow sight  502 . The bow sight  502  has been drawn in dashed lines to indicate that the bow sight  502  may be of any configuration including those currently being manufactured or those manufactured in the future by archery product manufacturers in the industry. The pin attachment member  512  is provided with a pair of holes  514  and  516  for cooperating with a pair of threaded fasteners or the like to attach the pin attachment member  512  to the pin plate  520  of the bow sight  502 . By providing a pin sight  502  having a vertical slot  522  in the pin plate, the sight pin  500  can be vertically adjusted relative to the sight  502  in order to adjust the elongate pin member  504  within the sight window  506 . It is also contemplated that the sight pin  500  could be fixedly attached to the pin plate so as to position the elongate pin member  504  centrally within the sight window  506 . In such a case, a pair of matching holes in the pin plate  520  may be provided to allow the pin attachment member  512  to be attached to the pin plate  520 . Of course, those of skill in the art will appreciate that there may be other means and mechanisms of attaching the pin attachment portion  512  to the sight  502  depending on the configuration of the particular sight. Thus, by incorporating features of an existing sight and sight pins into the sight pin of the present invention, the sight pin  500  could be adapted to attach to other bow sights known in the art. 
   The elongate pin member  504  is provided with a plurality of holes  525 ,  526 ,  527 ,  528 ,  529  and  530  for receiving a plurality of fiber optic members. As further illustrated in  FIG. 10B , three fiber optic members  532 ,  534  and  536  inserted through the holes  525 – 530  in order to provided sight tips  540 – 545 . In order to at least partially conceal the fiber optic member loops  532 ,  534  and  536 , the loops  532 ,  534  and  536  are positioned behind the elongate pin member  504 . In this case, six sight tips are provided by the three fiber optic members  532 ,  534  and  536 , with each fiber optic member providing two sight tips. Thus, for example, by using green, yellow and red fiber optic members, the sight tips could be seen as red, yellow, green, red, yellow, green. 
     FIGS. 11A and 11B  illustrate another embodiment of a sight pin assembly  600  in accordance with the present invention. With a similar configuration to the sight pin of  FIG. 10A , the sight pin assembly  600  is comprised of an elongate pin member  602 , a pin member support  604  comprised of a single strut, and a pin attachment member  606  configured for attaching the pin assembly  600  to a sight (not shown). In this case, four fiber optic members  610 ,  611 ,  612  and  613  provided four sight tips  615 ,  616 ,  617  and  618 , respectively. The opposite ends of the fiber optic elements  610 – 613  terminate in the face  622  of the strut  604 . Each of the four sight tips  615 – 618  represent various distances to target (e.g., 20, 40, 60 and 80 yards, respectively). Each of the pin member  602 , support strut  604  and pin attachment portion  606  may be integrally formed into a single component as by molding, casting, machining or other techniques known in the art. 
   As previously discussed, in order to relatively precisely position the sight tips at a specific distance from the peep sight when the string of the bow is fully drawn, the sight may need to be moved either toward or away from the string of the bow. This allows the sight tips to be at, for example, 26.4 inches from the peep sight and thus make the sight tips more accurately represent their respective yardages. As such, as illustrated in  FIG. 12 , a sight attachment bracket assembly  650  is comprised of a pair of slidably engageable bracket members  652  and  654 . The first bracket member  652  is configured to be mounted to the riser of a bow (not shown). The second bracket member  652  is capable of being slid relative to the first bracket member  652  by engaging with slots  656  and  658 . Threaded fasteners that engage with holes  660  and  662  are configured to hold the first and second bracket members together when the desired position of the sight  670  is obtained. A sight mounting bracket  664  is attached with threaded fasteners  666  and  668  to the second mounting bracket  654 . The fasteners  666  and  668  cooperate with slot  672  to allow vertical adjustment of the sight  670  relative to the second mounting bracket  662 . 
   Another example of a mounting bracket that will allow adjustment of the sight horizontally relative to the riser of a bow is shown in  FIG. 13 . The bracket assembly  700  is comprised of a pair of slidably engageable bracket members  702  and  704 . The bracket member  702  provides a channel  706  for receiving and retaining the second bracket member  704 . The second bracket member is provided with an elongate slot  708  for receiving the shaft of a threaded fastener therein with the threaded fastener engaging with threaded hole  710  provided in the first bracket member  702 . By tightening the threaded fastener, the second bracket member  704  will be held relative to the first bracket member  702 . 
   Yet another embodiment of a sight pin assembly in accordance with the principles of the present invention is illustrated in  FIGS. 14A and 14B . The sight pin assembly  750  is comprised of a pin guard  752  which defines a sight window  756  and supports a sight pin  754 . The sight pin is provided with a plurality of sight tip apertures  761 – 765 . Fiber optic elements may be provided in each of the sight tip apertures  761 – 765  to provide sight tips visible in the sight window  756 . The pin guard  752  is attached to a mounting bracket (not shown) with a plurality of attachment tabs  766 ,  767  and  768  that cooperate with threaded fasteners to attach the sight  750  to a bow. The diameter of the sight guard  752  is configured to substantially match the diameter of the peep sight when a user looks through the peep sight on a fully drawn bow string. In that way, the user can easily align the sight relative to the peep sight when shooting the bow. 
   Finally, as shown in  FIGS. 15A and 15B , a bow sight, generally indicated at  800  is comprised of a pin guard  802  configured for mounting into a bow sight similar to that illustrated in  FIG. 1 , essentially forming a sight within a sight. The pin guard supports a plurality of fixed pins  802 – 806  that extend horizontally into the sight window  808 . A plurality of tabs  810 ,  811 , and  812  for engaging the pin guard of the bow sight (see  FIG. 1 ) to which the bow sight  800  is attached. The pin guard  800  is attached to the pin plate of the other sight with attachment portions  814  and  816  that cooperate with threaded fasteners  818  and  820 , respectively. 
   Fiber optic elements provide sight tips in each of the fixed pins  802 – 806  and may be wrapped around the guard  802  in the channel or recessed portion  822 . A glow-in-the dark material (such as a glow-in-the dark tape) may be attached to the channel  822  in order to illuminate the fiber optic elements in low light conditions. Ths, the glow-in-the-dark material would be placed between the guard  802  and the fiber optic elements. 
   While the present invention has been described with reference to certain embodiments to illustrate what is believed to be the best mode of the invention, it is contemplated that upon review of the present invention, those of skill in the art will appreciate that various modifications and combinations may be made to the present embodiments without departing from the spirit and scope of the invention as recited in the claims. The claims provided herein are intended to cover such modifications and combinations and all equivalents thereof. Reference herein to specific details of the illustrated embodiments is by way of example and not by way of limitation.