Firearm Sight System Using Rear Aperture Obscuration
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Solution Overview
Problem
Current firearm sight systems lack efficient methods for rapid and accurate alignment with targets, leading to inconsistent and time-consuming sight acquisition.
Innovation Solution
A rear sight system that alters the observed image of the front sight by obscuring portions of it, changing its geometry from an irregular shape, such as a pentagon, to a recognizable shape, like a diamond, indicating proper alignment when viewed through the rear sight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional iron sights are used with fixed front and rear sight geometries, then the sight alignment process is simple, but the target acquisition time is long and alignment consistency is poor
Solution Approach 1:
The rear sight aperture is designed to obscure specific portions of the front sight, changing the observed geometry from an irregular pentagon to a diamond shape. This optical effect through selective obscuration creates a distinctive alignment indicator that speeds up target acquisition while maintaining simple sight components
Solution Approach 2:
The rear sight aperture acts as an intermediary element that transforms the visual information from the front sight. By strategically positioning the aperture to block certain portions of the front sight, it creates a new geometric pattern (diamond shape) that serves as an immediate visual cue for proper alignment, eliminating the need for complex adjustment procedures
2Measurement precision
If the front sight geometry is irregular shaped (pentagon), then the sight components are simple to manufacture, but the alignment precision and target area visibility are reduced
Solution Approach 1:
The invention uses the rear sight aperture to create an optical transformation that converts the irregular pentagon shape into a diamond shape when viewed through the aperture. This geometric transformation improves alignment precision and target visibility without requiring complex manufacturing of the front sight itself, as the diamond shape is created through the interaction between the simple pentagon and the aperture
3Reliability
If traditional sight alignment methods are used, then the sight system is easy to operate, but the consistency and accuracy of alignment with the target is insufficient
Solution Approach 1:
The rear sight aperture serves as a mediator that creates a distinctive diamond-shaped visual indicator when the sights are properly aligned. This transformed geometry provides an unambiguous visual cue that improves alignment consistency, while the operator simply needs to recognize the diamond shape and place it on the target, maintaining ease of operation
Solution Approach 2:
The optical transformation created by the rear sight aperture provides immediate visual feedback to the operator about alignment status. When the irregular pentagon front sight is viewed through the aperture and transforms into a diamond shape, this feedback confirms proper alignment, allowing the operator to quickly and consistently achieve accurate sight alignment with the target
Data Source
AI summary
A firearm and firearm sight system includes a rear sight that changes the image of the front sight, that is, what the operator observes when viewing the front sight through the rear sight. The rear sight accomplishes this front sight image change by obscuring portions of the front sight and its shape when the operator observes the front sight looking through the rear sight. This obscuring of the front sight results in the observance by the operator of a new front sight shape. The new front sight shape represents an aligned sight picture, meaning the new front sight shape indicates the firearm sights are correctly aligned on the firearm and can then be aligned with the intended target.