Bow Sight Eye Alignment Assembly with Tapered Frame

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Solution Overview

Problem

Current mechanisms for aligning a user's body and eye with tools like bows, firearms, and golf clubs are crude and inaccurate, leading to inconsistent shots due to varying eye positions, which affect the accuracy and direction of shots.

Innovation Solution

An eye alignment assembly with a tapered inner surface and phosphorescent optical fibers that provide an indication of orientation in pitch and yaw directions, allowing users to position their body correctly relative to the tool without aligning their line of sight with the tool's operating axis, using a mounting bracket and adjustment system for precise alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If current crude alignment mechanisms are used, then device complexity is reduced, but measurement precision of eye position deteriorates

Engineering Contradiction:
Improveeye position measurement precisionVSAvoidalignment mechanism complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary optical system consisting of a lens and alignment indicia that mediates between the user's eye and the bow sight. This intermediary provides precise optical feedback about eye position without requiring complex electronic sensors or measurement devices, thereby achieving high measurement precision while maintaining relatively simple device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces crude mechanical alignment mechanisms with an optical system using lenses and light transmission. This substitution provides more precise measurement of eye position through optical principles rather than mechanical means, improving measurement precision while the overall device complexity remains manageable due to the elegance of optical solutions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If the user consistently positions their body relative to the bow, then shot accuracy is improved, but the learning time increases

Engineering Contradiction:
Improveshot accuracyVSAvoidlearning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements immediate visual feedback through the alignment indicia that shows the user whether their eye is properly positioned relative to the bow sight. This real-time feedback allows users to quickly learn and correct their positioning, reducing learning time while ensuring consistent shot accuracy through proper alignment.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The alignment indicia provides preliminary guidance to users before they take a shot, showing them the correct eye position in advance. This preliminary action helps users develop proper positioning habits faster, reducing the overall learning time required to achieve consistent shot accuracy.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the tapered inner surface is made more pronounced, then eye alignment precision is improved, but the field of view through the viewing opening is reduced

Engineering Contradiction:
Improveeye alignment precisionVSAvoidviewing opening area
Core Design Contradiction:
Measurement precisionVSArea of moving object

Solution Approach 1:

The patent applies the tapered inner surface selectively within the frame structure to provide alignment precision only where needed for eye positioning, while maintaining a sufficiently large viewing opening for target acquisition. This local application of the tapering feature achieves eye alignment precision without unnecessarily reducing the overall field of view.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses the tapered inner surface to create alignment indicators that function in a different dimensional space than the viewing opening. The tapering provides vertical or radial alignment cues that do not directly compete with the horizontal field of view, allowing both eye alignment precision and adequate viewing area to coexist.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 eye alignment assembly enables consistent positioning of the user's body and eye relative to the tool, allowing the tool to become an extension of the user's body, improving accuracy and reducing the learning time for precise shots.

Implementation Method 1

phosphorescent optical fibers that provide an indication of orientation in pitch and yaw directions

Methodology Applied
Scientific EffectPhosphorescence: Phosphorescence

Data Source

PatentUS8079153B2Bow sight and eye alignment assembly with tapered frame
Publication Date: 2011.12.20 FERADYNE OUTDOORS LLC
  • US8079153B2 patent drawing
  • US8079153B2 patent drawing
  • US8079153B2 patent drawing

AI summary

A sighting device for a bow (or other tool) that includes an eye alignment assembly. A frame is attached to the bow using a mounting bracket. The frame includes a leading edge oriented toward a user, a trailing edge oriented down range of the bow, and a tapered inner surface generally surrounding a viewing opening. The tapered inner surface tapering outward from the leading edge toward the trailing edge. A plurality of sight points on sight pins are located in the viewing opening. The sight points are configured to align the bow with a target viewed through the viewing opening. The eye alignment assembly includes the tapered inner surface substantially concealed behind the leading edge when the frame is located at a particular orientation relative to the user's eye.