Handheld Rangefinder True Calibration for Specific Ballistics
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Solution Overview
Problem
Conventional rangefinders lack correlation with individual bow sights and firearms, requiring multiple steps for effective shooting, leading to potential misses due to lack of dynamic trajectory information and calibration to specific projectiles.
Innovation Solution
A handheld rangefinder with a high-resolution display and digital camera that provides dynamic indicators of projectile trajectory, allowing for calibration to specific bows and firearms, and displays a relative aiming point aligned with the user's bow sight pins, enabling accurate and safe shooting by indicating clear shots and obstacle interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional rangefinders are used without calibration to specific firing devices, then the device complexity is reduced and ease of operation is improved, but measurement precision deteriorates due to lack of correlation with individual ballistics
Solution Approach 1:
The patent implements a calibration process that is performed in advance before actual use. The system stores ballistic data for multiple firing device/projectile combinations and allows users to select and calibrate to their specific configuration beforehand. This preliminary calibration establishes the correlation between rangefinder measurements and specific ballistics, ensuring measurement precision is achieved without adding complexity during actual operation.
2Measurement precision
If multiple calibration steps are performed for different bows and arrows or rifles and cartridges, then measurement precision is improved, but loss of time increases due to repeated calibration procedures
Solution Approach 1:
The patent creates a universal calibration system that can handle multiple firing device and projectile combinations through a single integrated platform. The system stores ballistic data for various configurations and allows users to switch between different calibrated profiles. This multi-functionality enables the rangefinder to maintain high measurement precision across different weapons while requiring calibration only once for each configuration, rather than repeating the process frequently.
Solution Approach 2:
The system creates digital copies of ballistic trajectories for different firing device/projectile combinations. Instead of requiring physical recalibration each time a different weapon is used, the system stores trajectory data models that can be selected and applied. These digital copies allow rapid switching between different calibrations without repeating the time-consuming calibration process.
3Reliability
If dynamic trajectory information is provided for specific projectiles, then reliability of shooting is improved, but device complexity increases due to additional display and processing requirements
Solution Approach 1:
The patent merges the trajectory information display with the existing rangefinder optical system. The ballistic data, trajectory indicators, and aiming information are superimposed on the visual field through the device's optics or display. This integration combines multiple functions (range finding, trajectory calculation, visual targeting) into a single unified system, improving shooting reliability without requiring separate complex display mechanisms.
Data Source
AI summary
A method and system for calibrating an electronic range finding device to a specific firing device and specific projectile, wherein the range finding device comprises a display, wherein the method comprises aiming the range finding device at a first mark and adjusting a dynamically positioned indicator at a second mark, wherein the range finding device is calibrated to a specific firing device and specific projectile, whereby the range finding device provides information about the projectile trajectory path. The system uses the true calibration for a specific firing device, such as a bow, crossbow, rifle, or tank, to select a ballistic table and display accurate projectile trajectory information including an aiming point and an indication of whether or not the projectile has a clear shot to a target.