Lens-Embedded LED Sight Dot for Archery Aiming
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Solution Overview
Problem
Traditional archery sight apertures face challenges in controlling the brightness and size of sight pins, which can obscure targets and are prone to damage from external objects due to their exposed LED light sources.
Innovation Solution
A sight assembly with a lens-mounted, miniature surface-mount LED that is encapsulated in a depression, protected from external contact, and adjustable for various archery parameters, featuring a bracket assembly for precise alignment and a housing with a sight window to minimize target obscuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a LED is bonded to the surface of a lens to serve as a sight dot, then target obscuration is reduced and brightness control is improved, but the LED becomes vulnerable to inadvertent contact, bumps, scratches, and foreign objects
Solution Approach 1:
The LED is nested within a depression formed in the lens surface, creating a protective cavity that shields the LED from external contact while maintaining its optical function. This nesting approach allows the LED to be embedded rather than surface-mounted, reducing vulnerability to bumps and scratches.
Solution Approach 2:
The depression acts as an intermediary protective structure between the LED and the external environment. This intermediate feature provides mechanical protection while allowing the LED to remain optically accessible for its sight dot function.
2Illumination intensity
If large sight pins or illuminated dots are provided in the sight aperture, then brightness and visibility are improved, but target obscuration increases
Solution Approach 1:
The patent utilizes surface-mount LED technology which allows for miniaturization of the light source. By changing the physical parameters of the LED to a surface-mount configuration, the sight dot achieves adequate brightness while occupying minimal space in the sight aperture, thereby reducing target obscuration.
3Adaptability or versatility
If multiple sight pins are provided within the same sight aperture for different yardages, then versatility is improved, but target obscuration and complexity increase
Solution Approach 1:
The sight assembly incorporates adjustable mechanisms that allow the sight pins to be dynamically repositioned or reconfigured. This dynamic capability enables multiple yardage settings to be achieved without permanently installing multiple fixed sight pins, thereby reducing overall complexity while maintaining versatility.
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 solution provides controlled brightness and protection for the LED, reducing target obscuration and enhancing durability, allowing for precise aiming in varying light conditions and environments.
Implementation Method 1
The illuminated sight point includes an artificial light source located in the depression
Data Source
AI summary
A sight assembly for aiming at a distant target by a user includes a sight housing having a sight window; a lens connected to the housing in alignment with the sight window; a depression formed with the lens; and an illuminated sight point for superimposing on the distant target. The illuminated sight point includes an artificial light source located in the depression. In this manner, the light source is protected from the outside environment to thereby protect the light source against inadvertent separation from the lens.