Firearm Training System Trigger Detection Using Light-Absorbing Surfaces
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Solution Overview
Problem
Existing firearm training systems face challenges in accurately detecting trigger region incursion due to brightly colored or highly reflective surfaces, which lead to false detections and reduced sensitivity, especially when used with holsters or under varying light conditions.
Innovation Solution
Incorporating materials with low light reflectivity and high light absorbent properties within the optical detection region of the firearm training system, such as dark-colored surfaces, textured surfaces, or matte-finish coatings, to filter out reflected light and enhance detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If brightly colored or highly reflective surfaces are used in the firearm training system, then the system is more visible and distinguishable, but detection sensitivity is reduced and false detections increase
Solution Approach 1:
The patent applies different surface properties to different regions of the training system. The magazine release area uses a light-absorbing material to reduce optical interference and improve detection sensitivity, while other parts of the system can maintain brighter colors for visibility. This localized application of material properties resolves the contradiction by optimizing each region for its specific function.
Solution Approach 2:
The patent changes the optical parameters (light reflectivity and absorption) of the surface material at the magazine release area. By using materials with low reflectivity and high absorption properties, the system reduces false detections and improves measurement precision while maintaining visibility through proper lighting and display mechanisms.
2Difficulty of detecting and measuring
If optical sensors are used to detect trigger region incursion, then detection capability is provided, but false detections occur due to reflected light from reflective surfaces
Solution Approach 1:
The patent converts the harmful reflected light from reflective surfaces into a beneficial signal by using light-absorbing materials at the magazine release area. This eliminates the false detections caused by reflections while maintaining the optical sensor's ability to detect trigger region incursion accurately, thereby improving reliability.
Solution Approach 2:
The light-absorbing material acts as an intermediary between the optical sensor and the trigger region. It filters out spurious reflected light signals while allowing the sensor to detect the actual trigger incursion event, thus reducing false detections and improving detection reliability.
3Measurement precision
If light-absorbing materials are used in the optical detection region, then detection sensitivity is improved and false detections are reduced, but the system requires more complex material selection and surface treatment
Solution Approach 1:
The patent applies light-absorbing materials only to specific areas where optical interference occurs (such as the magazine release area), rather than throughout the entire system. This localized approach improves detection sensitivity where needed while minimizing the complexity of material selection and surface treatment across the whole system.
Solution Approach 2:
The patent uses material properties related to light absorption and reflection (color characteristics) to solve the detection sensitivity issue. By selecting materials with specific optical properties (dark, non-reflective surfaces) at critical locations, the system improves detection without requiring complex electronic or mechanical modifications.
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 approach improves detection sensitivity, reduces false positives, and minimizes sensor complexity and energy consumption, providing reliable trigger region incursion detection across different environments and conditions.
Implementation Method 1
the effectiveness of many optical detection techniques... reduction in background contrast and increased background noise in relation to a foreign object... background noise in the form of reflected light
Implementation Method 2
materials having low light reflectivity and high light absorbent properties... light absorbent property that filters reflected light
Data Source
AI summary
A firearm training system includes a device body simulating a firearm and a releasable magazine accessory. The magazine accessory is retained within a receptacle formed within a handle of the device body by a pair of catches and two springs that provide opposing forces on the magazine accessory. The firearm training system also includes an improved trigger assembly that reduces breakage of the trigger under repetitive trigger pulls.