Telescopic Sight Secondary Reticule Windage Correction
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Solution Overview
Problem
Current telescopic gun sights require time-consuming and costly methods for zeroing in and lack effective windage correction systems, leading to inefficiencies in aiming and increased complexity for shooters, especially at close ranges and varying wind conditions.
Innovation Solution
A telescopic gun sight with a secondary reticule featuring a horizontal windage correction scale that provides instant windage correction target alignment values at specific locations, eliminating the need for extensive calculations and minimizing clutter in the shooter's field of view, even at high magnification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional zeroing methods are used with trial-and-error firing, then the reticule can be aligned with bullet impact position, but considerable time and costly bullets are required
Solution Approach 1:
The patent pre-calculates and marks windage correction values on the reticule at specific spaced-apart locations corresponding to selected distance amounts for a selected bullet type and weight. This preliminary preparation eliminates the need for trial-and-error firing during actual zeroing, allowing immediate alignment without time-consuming adjustments
Solution Approach 2:
The windage correction scale is segmented into point-specific spaced-apart locations, each representing a predetermined distance. This segmentation allows the shooter to directly select and align with the appropriate pre-calculated value rather than performing iterative adjustments, significantly reducing zeroing time
2Measurement precision
If range finding devices are added to determine hold over, then bullet drop compensation is achieved, but clutter is added to the hunter's field of vision
Solution Approach 1:
The patent merges the windage correction scale directly onto the reticule itself, combining the aiming reference and windage correction functions into a single integrated component. This eliminates the need for separate range finding devices and their associated clutter, while providing all necessary correction values directly in the shooter's field of view
Solution Approach 2:
The reticule serves multiple functions: it provides the primary aiming crosshairs, incorporates the windage correction scale with pre-calculated values for various distances, and eliminates the need for separate range finding devices. This multi-functionality reduces overall system complexity while maintaining measurement precision
3Measurement precision
If cross-hair wires are positioned at the object end of the inverting tube, then magnification of cross-hairs is achieved, but the magnified cross-hairs block portions of the hunter's view
Solution Approach 1:
The patent positions the windage correction scale and cross-hair wires at the eye piece end of the inverting tube rather than the object end. This local repositioning ensures that the cross-hairs remain visible and functional for aiming while preventing them from being magnified to a degree that would block the hunter's view of the target
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 quick and accurate windage corrections without complex calculations, improving aiming efficiency and reducing the time required for shot preparation, while maintaining a simple and durable design.
Implementation Method 1
an adjustable lens configuration for adjustably magnifying an external object to form an object image
Implementation Method 2
an inverting tube for inverting the object image
Data Source
AI summary
An improved telescopic gun sight includes a telescopic gun sight at least including an adjustable lens configuration for adjustably magnifying an external object to form an object image, an inverting tube for inverting the object image, an ocular lens array for presenting the object image for viewing, a primary reticule including sighting insignia imprinted thereon and a secondary reticule being movable both horizontally and vertically in the image plane. The secondary reticule includes a generally horizontal windage correction scale operative to provide instant windage correction target alignment. It includes instant windage correction target alignment values positioned at point-specific spaced-apart locations with specific instant windage correction target alignment values corresponding to selected distance amounts calculated for a selected bullet type and weight.