Modular Eye Examination System for Precision Fundus Imaging

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Solution Overview

Problem

Current self-examination technologies for eye diseases and impairments using consumer devices are limited by unspecific feedback and lack of comprehensive eye testing capabilities, requiring user interpretation and often lacking the precision of professional assessments.

Innovation Solution

A modular system with a main module and additional modules (such as projectors, cameras, and sensors) that perform various eye tests using algorithms for precise analysis, including image capture, distance measurement, and user feedback, enabling automated detection of eye diseases without the need for a healthcare professional.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If consumer electronic devices with integrated cameras are used for fundus photography, then accessibility and ease of operation are improved, but measurement precision and reliability deteriorate

Engineering Contradiction:
ImproveaccessibilityVSAvoidmeasurement precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent introduces a specialized eye examination module as an intermediary between the consumer device and the eye. This module includes a positioning element that ensures correct alignment, a light source for proper illumination, and a specialized lens for capturing high-quality fundus images. The module acts as a mediator that transforms the ordinary camera into a precision medical imaging device by providing dedicated optical components and positioning mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system is divided into separate functional modules: the main consumer device (smartphone or tablet), the eye examination module with specialized optics, and the evaluation unit for analyzing images and videos. This segmentation allows each component to be optimized for its specific function while maintaining overall system accessibility through the consumer device interface.

Inventive Principle:
Principle #1Segmentation

2Productivity

If automated eye test algorithms are implemented, then productivity and reliability are improved, but device complexity increases

Engineering Contradiction:
ImproveproductivityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system enables self-examination by allowing users to independently perform eye tests using the automated algorithms. The evaluation unit automatically analyzes captured images and videos, processes test results, and provides diagnostic recommendations without requiring professional ophthalmologist intervention for the actual examination process, thus improving productivity while keeping the device accessible to consumers.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary eye examinations and provides pre-diagnostic results that can identify potential issues before they develop into serious conditions. The automated algorithms conduct initial assessments, filter obvious cases, and prepare preliminary diagnoses that guide further medical evaluation, increasing productivity by handling routine screenings automatically.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If multiple test modules and algorithms are integrated, then measurement precision and reliability are improved, but device complexity increases

Engineering Contradiction:
ImprovespecificityVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The eye examination module is designed as a universal component that can perform multiple types of eye tests through different algorithms and test patterns. The same physical module with its specialized lens, light source, and positioning mechanism supports various examination modes (fundus photography, visual acuity tests, eye movement tracking), reducing overall device complexity compared to having separate dedicated devices for each test type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines multiple examination functions into a single integrated module that attaches to the consumer device. The module merges the camera lens, light source, positioning mechanism, and various test pattern displays into one unified component, allowing multiple eye tests to be performed with a single attachment rather than requiring multiple separate devices.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10709328B2Main module, system and method for self-examination of a user's eye
Publication Date: 2020.07.14 SONY GROUP CORP
  • US10709328B2 patent drawing
  • US10709328B2 patent drawing
  • US10709328B2 patent drawing

AI summary

A main module for a modular system for self-examination of an eye is provided. The main module has an interface for coupling with at least one other module of the modular system and a processor. The processor is configured to perform at least one eye test algorithm by controlling the at least one other module.