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Archery bowstring peep sight useful in low light conditionsRelated Patent Categories: Geometrical Instruments, Straight-line Light Ray Type, Structurally Installed, Archery BowArchery bowstring peep sight useful in low light conditions description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070050998, Archery bowstring peep sight useful in low light conditions. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] The present invention generally relates to a device useful for aligning archery equipment with desired targets, and more particularly, to an alignment device of the type generally referred to as a "peep sight". [0002] A great number of devices have been developed for use with various different types of archery equipment in an effort to improve the accuracy of the process for aligning the arrow which is to be released from the bow with an intended target, i.e., aiming of the archery equipment. The subject matter of the present invention is primarily directed to one such type of aiming device, which is commonly referred to as a "peep sight", which have long been used with many types of weapons that require alignment with an object or a target. [0003] For use in archery, peep sights are conventionally associated with the bowstring of the archery equipment, and are used to establish an orientation for the bow relative to the intended target. Orientation of the bow can include variations in pan, tilt, and even roll of the bow as the bow is being aimed at the intended target. In use, as the bowstring is drawn back, together with a knocked arrow, the archer looks through the peep sight, while viewing the intended target, and the bow is moved to an orientation (primarily, panned to the left and right, and tilted up and down) which is considered appropriate for release of the arrow. [0004] The configuration of the peep sight can have a marked effect on the accuracy which can be achieved, often irrespective of the amount of practice with a particular peep sight design, and the effectiveness of the various peep sight designs which have been proposed to date can vary widely. However, it has in practice been found that irrespective of the peep sight design which is employed, the results achieved are the most limited when operating in low light conditions, for example, at dawn, at dusk and in inclement weather. [0005] To accommodate the limitations of low light conditions, both round and shaped peep sights have been proposed. This has included peep sights that operate passively, for example, by varying the configuration of the aperture which is developed by the peep sight, and peep sights that operate more actively, for example, by providing some form of background coloration or lighting. However, in practice, such attempts have generally been found to be less than satisfactory when used under actual, low light conditions. [0006] For example, while smaller diameter apertures have generally been considered to increase accuracy, the smaller diameter aperture of a peep sight generally tends to decrease the ability to view a target. Moreover, the use of a smaller, cylindrically shaped aperture tends to enhance the adverse effects of diffracted light on such peep sights. [0007] Also, because the peep sight is only a few inches from one's eye during use, the tendency is to focus on the frame of the peep sight, then to the sighting pins associated with the bow, and finally to the target. For this reason, attempts have been made to enhance the performance of a peep sight in low light conditions by providing the bow with lighted or fluorescent sighting pins, as well as peep sights that are themselves provided with coloration, or which are lighted, in an effort to enhance their operation in low light conditions. By intensifying the light around the aperture of the peep sight, such devices can be of assistance to the archer. However, such devices present the corresponding disadvantage that the eye is then made to focus on the lighted or fluorescent peep sight and/or sighting pins, and not on the target. SUMMARY OF THE INVENTION [0008] It has been found that when used in low ambient light conditions, the drawback to conventional peep sights is that when an archer draws on a target, the archer is at best able to view a limited portion of the target, for example, only the body of the intended target. In accordance with the present invention, this drawback is overcome by enabling the archer to also see above and below the intended target. This not only provides a full view of the target, but also enhances depth perception. [0009] This is accomplished by providing a peep sight which is generally comprised of a body which develops a frame for defining a shaped aperture and which includes a peripheral groove for receiving a bowstring, for mounting the peep sight to the bowstring. The shaped aperture which is developed by the frame forms a single, vertically elongated sight window. The elongated shape of the frame also facilitates mounting of the peep sight to a conventional, multi-stranded bowstring. [0010] It has surprisingly been found that, contrary to the general belief that a peep sight which provides a larger sight picture, although easier to sight through, would lack precision, the relatively large, elongated shape of the peep sight of the present invention makes the viewing of a target much easier, especially in low light situations. Moreover, the thin frame and the large viewing area of the peep sight of the present invention allows the eye of the archer to gather more light, yielding a better view of the intended target, particularly in low light conditions. [0011] In use, the peep sight of the present invention allows an archer to immediately focus on the sighting pins of the bow, and then on the target, without any obstruction. The shape of the peep sight of the present invention allows the archer to more easily center the sighting pins, by moving to the left or to the right, while the selected anchoring point controls elevation. As a result, and contrary to expectations, the relatively large peep sight of the present invention has been found to be more accurate in use. BRIEF DESCRIPTION OF THE DRAWINGS [0012] FIG. 1 is an elevational view showing the peep sight of the present invention mounted to a conventional bowstring. [0013] FIG. 2 is a side view of the peep sight shown in FIG. 1, separate from the bowstring. [0014] FIG. 3 is a cross-sectional view of the peep sight shown in FIG. 2, separate from the bowstring and taken along the line 3-3 shown in FIG. 2. [0015] FIG. 4 is a cross-sectional view of the peep sight shown in FIG. 1, separate from the bowstring and taken along the line 4-4 shown in FIG. 1. [0016] FIG. 5 is a schematic view illustrating a peep sight which has been mounted to the bowstring of a compound bow, and its manner of use. [0017] FIG. 6 is a schematic view illustrating the manner in which the bow is aimed using the peep sight. [0018] FIG. 7 is a schematic view similar to FIG. 6 which further illustrates the manner in which the bow is aimed relative to an intended target. [0019] FIG. 8 is an elevational view showing an alternative embodiment of the peep sight of the present invention. DETAILED DESCRIPTION OF THE INVENTION [0020] FIG. 1 shows a peep sight 1 which is produced in accordance with the present invention, mounted to a bowstring 2 associated with desired archery equipment. The bowstring 2 is, itself, entirely conventional in configuration, and is provided only for purposes of illustration. The bowstring 2 can be mated with any of a variety of different types of archery equipment, as will be discussed more fully below. 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