Archery Viewfinder Light Baffles for Glare Reduction
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Solution Overview
Problem
Traditional archery viewfinders suffer from glare issues due to smooth surfaces, which are exacerbated by misalignment caused by twisting bow strings and asymmetric forces, leading to reduced accuracy in target observation.
Innovation Solution
The implementation of a cylindrical archery viewfinder with integrated light baffles that redirect incident stray light away from the user's line of sight, ensuring minimal glare even when misaligned, by combining cylindrical shapes with baffles to block unwanted light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a smooth surface is used on the viewfinder, then the manufacturing is easier and the surface is simpler, but glare increases due to light reflection
Solution Approach 1:
The viewfinder surface is segmented into multiple facets instead of being a single smooth surface. Each facet is angled to redirect reflected light away from the user's line of sight, reducing glare while maintaining manufacturing feasibility through modular construction
Solution Approach 2:
Different portions of the viewfinder surface have different angular orientations. Each local facet is specifically angled to redirect light away from the user's eye, creating non-uniform surface properties that locally control reflection patterns to eliminate glare
2Strength
If a longer continuous smooth surface is used on the viewfinder, then the structural integrity is improved, but glare increases due to greater surface area for light reflection
Solution Approach 1:
The continuous surface is divided into multiple discrete facets arranged in a sequence. This segmentation reduces the continuous reflective surface area while maintaining structural integrity through the collective arrangement of facets and their interconnections
Solution Approach 2:
The viewfinder employs a curved or angled facet arrangement rather than a straight continuous surface. This curved configuration redirects light at varying angles across different facets, reducing glare while the overall curved structure maintains structural strength
3Adaptability or versatility
If the viewfinder is misaligned due to twisting bow strings, then the device remains functional, but accuracy of target observation deteriorates due to increased glare
Solution Approach 1:
The facet angles are designed with asymmetric orientations specifically calculated to redirect light away from the user's line of sight across a range of misalignment angles. This asymmetric configuration ensures that even when the bow twists or the viewfinder becomes misaligned, reflected light continues to be directed away from the user, maintaining observation accuracy
Solution Approach 2:
The facets are pre-configured with specific angles during manufacturing to anticipate and compensate for potential misalignment caused by bow twisting. This preliminary angular configuration ensures that glare is reduced both when aligned and when misaligned, maintaining target observation accuracy under varying conditions
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
The cylindrical shape with light baffles significantly reduces or eliminates glare, maintaining clear target visibility and improving accuracy by minimizing reflected light, regardless of alignment with the line of sight.
Implementation Method 1
light reflecting off of a smooth surface of the viewfinder can produce glare... Reflected light follows the fundamental principles of physics that define the angle of reflected light to be equal to the angle of the incoming incident light
Data Source
AI summary
An archery viewfinder is disclosed. An example archery viewfinder may include a viewfinder housing having a cylindrical shape. The viewfinder may be mounted on one or both of a front toward target position and a rear toward user position in an archery bow system. The archery viewfinder may also include at least one light baffle in the viewfinder housing. The at least one light baffle is formed by a first diameter of the viewfinder forming adjacent ridges and a second diameter of the viewfinder housing forming a groove between the adjacent ridges. A combination of the geometrically parallel shape and the at least one light baffle substantially reduces or even fully eliminates incident stray light from causing glare when viewed or observed by the user.