Eyepiece Diopter Verification via Image Sensor Spot Analysis

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Solution Overview

Problem

Current methods for verifying the diopter setting and range of optical system eyepieces are costly and prone to human subjectivity, relying on expensive precision devices like dioptometers that can introduce errors.

Innovation Solution

A system and method utilizing an image sensor to display and analyze test patterns of spots within the eyepiece, calculating the diopter setting and range by comparing images taken at different diopter settings, thereby reducing human intervention and costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a dioptometer is used to verify the diopter setting, then measurement precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improvediopter setting verification accuracyVSAvoidverification device complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses an image sensor to capture optical images of test patterns displayed through the eyepiece, creating a digital copy of the optical output. This replaces the need for complex physical dioptometers with a simpler digital imaging system that can analyze the same optical information.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical/optical dioptometer system with an electronic image-based system. The image sensor captures images and computer algorithms process the data to determine diopter settings, substituting mechanical measurement with electronic detection and computational analysis.

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

2Measurement precision

If a dioptometer is used to verify the diopter setting, then measurement precision is improved, but ease of operation deteriorates due to human subjectivity

Engineering Contradiction:
Improvediopter setting verification accuracyVSAvoidoperation simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system performs self-verification by automatically capturing images, processing the optical data, and calculating diopter settings without requiring human operators to manually adjust or interpret readings. The computer algorithm autonomously analyzes the test pattern images and determines the eyepiece diopter configuration.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system captures images at multiple diopter settings and uses the captured data to verify whether the eyepiece diopter settings are within acceptable ranges. The computer provides feedback by comparing measured values against predetermined specifications and indicating compliance or non-compliance.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If multiple images are captured and processed, then measurement precision is improved, but productivity decreases

Engineering Contradiction:
Improvediopter verification accuracyVSAvoidverification speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system captures multiple images at different diopter settings in rapid succession, maintaining continuous operation throughout the verification process. The image sensor and computer system work continuously to capture, process, and analyze images without interruption, maximizing the efficiency of each verification cycle.

Inventive Principle:
Principle #20Continuity of useful action

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

Provides accurate and cost-effective verification of diopter settings and ranges with minimal human subjectivity, using automated image processing to ensure precise calculations.

Implementation Method 1

creating at least one first image with the image sensor of the pattern of spots displayed on the display apparatus of the system at a zero diopter setting; creating at least one second image with the image sensor of the pattern of spots displayed on the display apparatus of the system at a first non-zero diopter setting

Methodology Applied
Scientific EffectOptical imaging: Lens

Data Source

PatentUS10520393B2System and method for verifying a diopter setting and range of an optical system eyepiece
Publication Date: 2019.12.31 BAE SYSTEMS INFORMATION ANDELECTRONIC SYSTEMS INTEGRATION INC
  • US10520393B2 patent drawing
  • US10520393B2 patent drawing
  • US10520393B2 patent drawing

AI summary

The present disclosure relates to a system and method for verifying a diopter setting and range of an optical system eyepiece by utilizing an image sensor to view and analyze test patterns of spots displayed within the optical system eyepiece and calculating the diopter setting and range of the optical system eyepiece from an observed change in the test pattern at different diopter settings.