Relative Aiming Point Display for Firearm Trajectory Correction
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Solution Overview
Problem
Conventional rangefinders lack a direct correlation between their display and the user's individual rifle sight or scope, requiring multiple steps for accurate shooting, which can be time-consuming and increase the likelihood of missing the target due to the target's movement.
Innovation Solution
A display system that provides a relative aiming point relative to a reference with a predetermined size or height, using reference images, lines, or indicators, allowing users to visualize the aiming point for accurate and safe firearm use, incorporating a rangefinder device with a range sensor, tilt sensor, and computing element to determine ballistic information and display it dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional rangefinders display range information separately from the scope reticle, then the display can show range data, but the user must perform multiple steps to correlate the display with the sight picture, increasing time and reducing accuracy
Solution Approach 1:
The patent combines the rangefinder display with the scope reticle by projecting range information, hold-over points, and trajectory data directly onto the reticle plane. This merging allows the user to see both the target through the scope and the ballistic correction information in the same field of view, eliminating the need to switch between separate displays and the sight picture.
Solution Approach 2:
The patent uses an optical system within the scope to act as an intermediary that projects digital range information onto the reticle. This intermediary mechanism translates electronic display data into optical information that appears to originate from the reticle itself, creating a seamless integration between range finding and aiming functions.
2Measurement precision
If fixed reticles with approximate hold-over positions are used, then the scope design is simple, but the aiming points are not precise for specific bows and archers or rifles and ammunition
Solution Approach 1:
The patent implements dynamic reticle elements that can be adjusted based on range, projectile type, and user preferences. The hold-over points and trajectory indicators can be repositioned electronically to match specific ballistic configurations, allowing the same scope to be optimized for different bows, arrows, rifles, and ammunition types without physical reticle changes.
Solution Approach 2:
The patent allows users to change parameters such as projectile velocity, weight, and drag coefficients to calculate and display precise hold-over points for specific ballistic scenarios. The system stores multiple ballistic profiles and can switch between them, adjusting the reticle projections to match the selected parameters.
3Reliability
If multiple steps are required to correlate rangefinder display with scope reticle, then accurate shooting can be achieved through careful procedure, but the target has time to move and the process becomes unreliable
Solution Approach 1:
The patent performs preliminary ballistic calculations automatically as the user acquires the target through the scope. The system pre-computes hold-over points and trajectory information based on the measured range and stored ballistic profiles, so that when the user looks through the scope, the correction information is already positioned correctly on the reticle, requiring no manual calculation or adjustment steps.
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 users to quickly and accurately determine ranges and trajectories, ensuring a clear shot by providing a visual representation of the projectile's path, enhancing accuracy and safety by simplifying the aiming process.
Implementation Method 1
handheld rangefinders utilize lasers to acquire ranges for display to a hunter
Implementation Method 2
a tilt sensor operable to determine an angle to the target relative to the device
Data Source
AI summary
An improved display provides an intermediate point in the projectile trajectory being an aiming point and indicated in relation to the visualized target or target reference. The rangefinder device is calibrated to a weapon having a sight, for example, having a riflescope calibrated at 100 yards. The aiming point is displayed showing the intermediate point in the projectile trajectory that corresponds with riflescope cross hairs at a predetermined zero setting. The user places the riflescope cross hairs on the point visualized in the display. Alternatively, the aiming point is displayed relative to the magnified image of the target, a generic reference images, or a user selectable reference image.