Auto-correcting bow sight

• US 8,316,551 B2
• Filed: 11/09/2009
• Issued: 11/27/2012
• Est. Priority Date: 11/10/2008
• Status: Active Grant

• Current Assignee: Wisconsin Archery Products LLC
• Original Assignee: Timothy Gorsuch
• Inventors: Gorsuch, Timothy M., Buckley, James A.
• Primary Examiner(s): Smith, Richard A
• Application Number:
  US12/615,071
• Publication Number:
  US 20100115778A1
• Time in Patent Office: 1,114 Days
• Field of Search: 332/65, 421/11, 421/22, 124/87
• US Class Current: 33/265
• CPC Class Codes: F41G 1/467 for bows

Abstract

A bow sight automatically corrects and compensates for various dynamically changing aiming, shooting, and/or environmental conditions. The bow sight can perform situation-specific aim evaluations and corrections to correct or compensate for situation-specific shooting and environmental factors, at a given time and on a per-shot basis. The bow sight includes integrated sensor-type devices, such as a range finder, an inclinometer, and an anemometer, which detects values of situation-specific shooting and environmental factors and communicates such detected values with a processor or other control device. The processor uses the situational specific data, as well as bow and arrow performance data, and data from shot calibrations, to calculate precise vertical and horizontal aim compensations required to accurately hit the desired target point. The bow sight displays a new crosshair, dot, or multiple dot set, to direct the archer to a situation-specific aiming point for the most accurate shot under those particular circumstances.

Claims

1. An auto-correcting bow sight, comprising:

a range finder supported on a bow incorporating the auto-correcting bow sight, the range finder determining a range to a target;

an inclinometer supported on the bow and determining an angle of inclination of the bow;

a processor supported on the bow and receiving information from the range finder and the inclinometer relating to the range to target and the angle of inclination of the bow, respectively;

multiple aim indicators being operably connected to the processor, wherein the processor controls which of the multiple aim indicators is displayed at a given time based on at least one of (i) the range to target, and (ii) the angle of inclination of the bow, information; and

a manually actuated input device that is operably connected to the processor and that can be actuated for beginning an evaluation by the processor that determines which of the multiple aim indicators to display based on the at least one of the range to target and the angle of inclination of the bow, and wherein the manually actuated input device is arranged upon the bow to allow actuation of the input device by an archer when the bow is in a fully drawn position.

2. The auto-correcting bow sight of claim 1, wherein some of the aim indicators are vertically aligned with each other.

3. The auto-correcting bow sight of claim 2, wherein some other multiple aim indicators are horizontally aligned with each other.

4. The auto-correcting bow sight of claim 1, the multiple aim indicators comprising at least one of (i) light emitting diodes, and (ii) portions of fiber optic strands conveying light from a bank of diodes mounted remotely with respect to the multiple aim indicators.

5. The auto-correcting bow sight of claim 1, wherein the input device comprises a triggering button, and wherein a peep sight is mounted to a bow string of the bow and a targeting sight is positioned with respect to the peep sight and the range finder so that a user can align the targeting sight and target as viewed through the peep sight while actuating the triggering button to begin the evaluation.

6. The auto-correcting bow sight of claim 1, wherein the processor controls which of the multiple aim indicators is displayed based on at least one of, arrow weight, arrow initial release speed from the bow, arrow aerodynamic drag characteristics, and broadhead weight.

7. The auto-correcting bow sight of claim 1, wherein at least one of the multiple aim indicators are selectively displayed in a see-through panel display.

8. The auto-correcting bow sight of claim 7, wherein ones of the multiple aim indicators, a value indicative of a shooting angle of the bow, and a value of a distance to target that corresponds to the range to target is displayed on the see-through panel display.

9. The auto-correcting bow sight of claim 1, wherein the multiple aim indicators define discrete dots.

10. The auto-correcting bow sight of claim 1, further comprising an anemometer operably connected to the processor and determining values of at least one of wind speed and direction, the anemometer sending a signal that corresponds to the determined values to the processor, and wherein the processor controls which of the multiple aim indicators is displayed at a given time based on (i) the distance to target, (ii) the angle of inclination of the bow, and (iii) at least one of wind speed and direction.

11. The auto-correcting bow sight of claim 10, wherein the aim indicator that is displayed compensates for at least one of the (i) the distance to target, (ii) the angle of inclination of the bow, and (iii) at least one of wind speed and direction, and wherein the aim indicator that is displayed is directly alignable with an intended strike area of the target while shooting an arrow from the bow.

12. The auto-correcting bow sight of claim 1, wherein the processor can determine a precise aiming position based on both of (i) the range to target, and (ii) the angle of inclination of the bow and can display at least one of the multiple aim indicators at the precise aiming position in a manner that allows an archer to take dead aim at the target.

13. A method of displaying an aim indicator in a bow sight to compensate for situation-specific shooting factors, the method comprising:

evaluating a shooting distance defined between a bow and a target;

evaluating a vertical shooting angle of the bow; and

determining a precise aiming position based on the shooting distance and the vertical shooting angle of the bow;

displaying an aim indicator at the determined precise aiming position so as to compensate for the vertical shooting angle of the bow in a manner that allows an archer to take dead aim at the target with the aim indicator that is displayed at the precise aiming position; and

fully drawing the bow and, while the bow is in a fully drawn position, manually actuating an input device that initiates at least one of the steps of evaluating the shooting distance, evaluating the vertical shooting angle, and determining the precise aiming position.

14. The method of claim 13, further comprising shooting an arrow from the bow at a known range and performing a correction calibration step.

15. The method of claim 14, wherein the known range is determined by a range finder.

16. The method of claim 13, further comprising performing a correction calibration step by instructing a processor within the bow sight as to how much aim compensation is required based on known performance characteristics of the bow.

17. The method of claim 16, further comprising performing a correction calibration step by instructing the processor as to how much aim compensation is required based on known characteristics of an arrow being used with the bow.

18. The method of claim 17, further comprising electronically transferring information to the bow sight for instructing the processor as to how much aim compensation is required based on known performance characteristics of an arrow that is being used with the bow.

19. The method of claim 17, further comprising activating one of multiple calibrations setups that are stored in a memory device of the bow sight.

20. The method of claim 13, wherein the input device comprises a triggering button, and wherein actuating the triggering button a first time begins a first determining of a precise aiming position and displaying of a first aim indicator at the first precise aiming position while the bow is fully drawn and wherein the method further comprises actuating the triggering button a second time and beginning a second determining of a second precise aiming position and displaying of a second aim indicator at the second precise aiming position while the bow remains fully drawn so as to correct for situation-specific changes in a shooting situation while the bow remains fully drawn.

21. The method of claim 13, further comprising viewing a targeting sight through a peep sight that is mounted in a string of the bow and aligning the target with the targeting sight and peep sight while the bow is in the fully drawn position during the initiation of the at least one of the evaluating the shooting distance, the evaluating the vertical shooting angle, and the determining the precise aiming position steps.

22. The method of claim 21, wherein the targeting sight is integrated into the auto-correcting bow sight and fixed with respect to the bow and the peep sight when the bow is fully drawn so that during multiple initiations of the at least one of the evaluating the shooting distance, the evaluating the vertical shooting angle, and the determining the precise aiming position steps, the targeting sight, the bow, and the peep sight are in constant relative positions with respect to each other.

23. An auto-correcting bow sight, comprising:

a sensor system that is mounted to a bow and that is configured to determine both of a range to a target and an angle of inclination of the bow; and

multiple aim indicators that are mounted on the bow and are operably connected to the sensor system so that the ones of the multiple aim indicators can be selectively displayed based at least in part on both of the range to target and the angle of inclination of the bow; and

a manually actuated input device that is operably connected to the sensor system and that is configured so that actuating the input device can initiate an evaluation of which ones of the multiple aim indicators can be selectively displayed based at least in part on both of the range to target and the angle of inclination of the bow, wherein the input device is configured to allow actuation of the input device by an archer when the bow is in a fully drawn position so as to permit the initiation of the evaluation while the bow is in the fully drawn position.

24. The auto-correcting bow sight of claim 23, wherein the sensor system comprises a range finder and an inclinometer that are both integrated into the auto-correcting bow sight.

25. The auto-correcting bow sight of claim 24, further comprising a base that is attached to the bow for supporting the auto-correcting bow sight such that each of the range finder and the inclinometer are supported on the bow by way of the base of the auto-correcting bow sight.

26. The auto-correcting bow sight of claim 25, wherein the input device comprises a triggering button that is supported by the bow at a location that is spaced from the base of the auto-correcting bow sight so as to allow actuation of the triggering button by an archer when the bow is in a fully drawn position.