Electronic Archery Sight Pin Calibration via Magnetic Sensor

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Solution Overview

Problem

Existing archery bow sights require archers to manually adjust and calibrate sight pins for different target distances through trial and error, with non-linear proportional relationships between sight pin positions and target distances, making it cumbersome and inaccurate.

Innovation Solution

An electronic archery bow sight with a control knob and shaft that measures and displays target distances based on the angular rotation of the shaft, using a magnet and sensor to calculate and display the corresponding target distance, allowing for precise adjustments and calibrations using either a 'two distance' or 'bow speed' method.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual trial and error adjustment is used to calibrate sight pins for different target distances, then the sight can be calibrated, but the process is cumbersome and time-consuming

Engineering Contradiction:

Improvesight pin calibration accuracyVSAvoidcalibration time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical adjustment and trial-and-error calibration with an electronic system that uses sensors, processors, and displays to automatically calculate and indicate the correct sight pin positions for different target distances, eliminating the need for time-consuming manual calibration

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The sight system performs self-calibration by automatically measuring the distance to the target using a range finder, processing the distance information through a processor, and displaying the appropriate sight pin position to the archer without requiring manual intervention or trial-and-error adjustment

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If multiple sight pins are used for different target distances, then the sight can accommodate various distances, but the non-linear proportional relationship makes adjustment complex and error-prone

Engineering Contradiction:

Improvetarget distance rangeVSAvoidadjustment mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system incorporates a range finder that measures the actual distance to the target and provides feedback to a processor, which then calculates and displays the correct sight pin position. This closed-loop feedback system eliminates the complexity of manual non-linear adjustments by automatically compensating for the non-linear proportional relationships

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent changes the operational parameters from manual mechanical positioning to electronic measurement and calculation. The system measures distance as a parameter, processes it through algorithms that account for non-linear relationships, and displays the resulting sight pin position, simplifying the adjustment process while maintaining adaptability across multiple target distances

Inventive Principle:

Principle #35Parameter changes

3Measurement precision

If computer software is used to generate sight tapes, then sight pin positions can be calculated, but the archer still needs to manually mount and adjust according to the tape

Engineering Contradiction:

Improvesight pin position calculationVSAvoidsight adjustment ease

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The sight system performs self-adjustment by automatically measuring the target distance with a range finder, processing the distance data through a processor that calculates the correct sight pin position, and displaying the result on a display device. This eliminates the need for the archer to manually mount sight tapes or perform adjustments based on printed guidance

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical process of manually mounting sight tapes and adjusting sight pins according to printed instructions with an electronic system that automatically calculates and displays the correct sight pin positions based on real-time distance measurements, significantly improving ease of operation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables precise and efficient adjustment of sight pins to different target distances, reducing the need for manual calibration and improving accuracy by electronically calculating and displaying the correct target distance based on the sight pin height adjustment.

Implementation Method 1

The electronic module measures the angular rotation of the shaft, which corresponds to the height adjustment distance of the sight pin

Methodology Applied

Scientific EffectMagnetic field detection: Magnetic Field

Data Source

PatentUS11965712B2Electronic archery sights

Publication Date: 2024.04.23 BEAR ARCHERY

AI summary

Embodiments include archery sights mounted or mountable on an archery bow. The sight incorporates a sight pin and an adjustment assembly in combination with an electronic module to indicate or control the desired position of the sight pin. The electronic module calculates and displays correlated target distances based on the position of the sight pin.