Digital Reticle Optical Sight for Variable Magnification Aiming
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Solution Overview
Problem
Existing optical sights face challenges in maintaining clear visibility of reticles at varying magnification levels, with first focal plane reticles obscuring targets and second focal plane reticles requiring complex ballistic calculations.
Innovation Solution
The optical sight integrates a controller that adjusts a first focal plane reticle to mimic a second focal plane reticle, ensuring the primary aiming point subtends with magnification changes while the secondary aiming point remains constant, using a digital reticle display and magnification adjuster to replicate this functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a first focal plane reticle is used, then the reticle subtends throughout the magnification range, but the reticle obscures the target
Solution Approach 1:
The reticle display system dynamically adjusts the appearance and magnification of reticle elements based on the current magnification level. The controller modifies reticle characteristics in real-time to maintain optimal visibility without obscuring the target, transitioning between different reticle configurations as magnification changes.
Solution Approach 2:
The system changes multiple parameters of the reticle display including magnification, brightness, and positional scaling. The controller adjusts these parameters based on the detected magnification level to ensure the reticle remains visible and accurate without blocking the target view.
2Ease of operation
If a second focal plane reticle is used, then the reticle remains constant throughout the magnification range, but complex ballistic calculations are required
Solution Approach 1:
The optical sight system automatically performs ballistic calculations and reticle adjustments without requiring manual intervention from the user. The controller detects magnification changes and automatically modifies the reticle display to account for ballistic drop and environmental conditions, eliminating the need for the user to perform complex calculations.
3Productivity
If the primary aiming point is magnified with real-time magnification, then it corresponds to the magnification level, but the size and position relative to the target changes
Solution Approach 1:
The controller adjusts multiple reticle parameters simultaneously including magnification, positional offset, and scaling factors. By coordinating these parameter changes, the system maintains the primary aiming point's accuracy relative to the target while still responding to magnification adjustments.
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
This solution provides clear reticle visibility across magnification ranges, simplifying aiming by maintaining the primary aiming point's size and position relative to the target, while the secondary aiming point accounts for environmental conditions and ballistic drop without obscuring the view.
Implementation Method 1
An optical sight includes at least one lens. A focal length of the optic is measured as the distance between the lens and a focal point.
Implementation Method 2
In a see-through day optic, the reticle is illuminated or obscures on a lens of the optic
Data Source
AI summary
An optical sight includes a lens assembly, a digital reticle display, a magnification adjuster, and a controller. The magnification adjuster is configured to be adjusted by a user. The controller is configured to display a reticle on the digital reticle display based on a real-time magnification, and is configured to determine the real-time magnification based on a position of the magnification adjuster.