Weapon Sight Electronic Zoom Calibration for Clip-On Alignment
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Solution Overview
Problem
The existing electronic zoom mode in digital imaging weapon sights is incompatible with clip-on arrangements, causing alignment issues and making precise targeting difficult due to magnification-induced changes in the alignment of the red dot relative to the reticle.
Innovation Solution
A system and method for electronic zoom calibration that includes a controller unit to locate the red dot of a day view optic relative to the reticle, electronically superimpose the reticle onto the thermal image, and store this information for subsequent use, ensuring the line of sight remains unperturbed during zooming, thereby maintaining alignment and rectifying parallax-induced image misregistration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electronic zoom mode is activated to magnify thermal image for viewing finer details, then measurement precision is improved, but alignment between red dot and reticle deteriorates causing loss of aiming accuracy
Solution Approach 1:
The system performs preliminary calibration by storing the position relationship between the reticle and bullet impact point before zooming operations. This pre-stored positional data enables the system to restore correct alignment after magnification, resolving the contradiction between detailed viewing and aiming accuracy.
Solution Approach 2:
The system uses feedback mechanisms to detect the position of the red dot relative to the reticle during zoom operations. By continuously monitoring this alignment and comparing it against stored reference positions, the system can dynamically adjust to maintain aiming accuracy while providing magnified thermal imagery.
2Ease of operation
If electronic zoom is implemented about physical center of display, then ease of operation is improved, but alignment with bullet impact point deteriorates
Solution Approach 1:
The system applies local quality by implementing different zoom centers for different operational modes. During calibration mode, zoom occurs at the physical center for ease of operation, while during aiming mode, zoom is dynamically adjusted to occur at the bullet impact point location to maintain alignment precision. This localized adaptation resolves the contradiction between operational simplicity and alignment accuracy.
3Adaptability or versatility
If conventional electronic zoom mode is used in clip-on arrangement, then adaptability is improved, but alignment stability deteriorates requiring re-aiming
Solution Approach 1:
The system performs preliminary calibration to establish and store the positional relationship between the reticle, red dot, and bullet impact point before normal operation. This pre-established reference framework enables subsequent zoom operations to maintain alignment stability, eliminating the need for re-aiming while preserving adaptability.
Solution Approach 2:
The system replaces mechanical alignment adjustment with electronic calibration and software-based correction. Instead of requiring physical realignment of optical components, the system uses digital processing to maintain the relationship between reticle and bullet impact point during zoom operations, thereby stabilizing line of sight alignment while maintaining versatility.
Data Source
AI summary
Disclosed is a system for a weapon sight for aiming a target. The system includes a controller unit configured to initiate an electronic zoom calibration mode, locate a red dot of a day view optic, cause a line of sight to the target unperturbed, electronically superimpose a reticle of the weapon sight onto a thermal image of the target, store information corresponding to a location of the reticle when the reticle is allowed to coincide with the located red dot, and write a pixel corresponding to the stored information of the location of the reticle to a pixel written corresponding to a location of the reticle in a non-electronic zoom mode. The system also includes a memory unit communicably coupled to the controller unit. Further disclosed are a weapon sight and a method for aiming a target using electronic zoom calibration.