Ophthalmic Slit Lamp Floodlight Projection for Corneal Mapping

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Solution Overview

Problem

Existing ophthalmic slit lamp microscope detectors lack the capability to perform specialized pathological observation of the cornea's surface condition, limiting their functional expansion beyond internal depth observation.

Innovation Solution

An additional floodlight projection device is attached to the ophthalmic slit lamp microscope detector, forming a floodlight map graph with a special mesh pattern on the cornea, combined with an image acquisition and analysis system to enhance pathological observation of both surface and internal depth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an additional floodlight projection device is attached to the ophthalmic slit lamp microscope detector, then the capability for corneal surface observation is improved, but the device complexity increases

Engineering Contradiction:
Improvecorneal surface observation capabilityVSAvoidsystem structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The floodlight projection device is integrated with the slit lamp microscope detector to form a unified system. The projection device is attached to the existing microscope structure, combining corneal surface mapping functionality with internal depth observation capabilities in a single integrated platform, thereby improving versatility without proportionally increasing complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The slit lamp microscope detector is enhanced to perform multiple functions: traditional internal depth observation and new corneal surface observation capabilities. The system can switch between different observation modes (internal structure imaging and surface mesh mapping) using the same platform, making the device universally applicable for both anterior segment internal examination and corneal surface topography

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

2Ease of operation

If the floodlight projection device is made removable and rotatable, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improvedevice positioning and adjustmentVSAvoidmounting mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The floodlight projection device is designed with removable and rotatable mounting mechanisms that allow dynamic adjustment of the device position and orientation. The rotation capability enables the projection device to be positioned at optimal angles for different examination scenarios, while the removable feature allows easy installation and removal. This dynamic design improves operational flexibility despite adding some mechanical complexity to the mounting structure

Inventive Principle:
Principle #15Dynamics

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

Enables higher-resolution corneal surface mesh mapping and intelligent pathological analysis without affecting the original functions of the slit lamp, allowing for comprehensive observation and analysis of corneal surface deformations.

Implementation Method 1

The removable rotation of the additional floodlight projection device is attached to the slit lamp microscope detector for forming a floodlight map graph with a special mesh pattern on the surface of the cornea to be detected

Methodology Applied
Scientific EffectOptical projection: Lens

Implementation Method 2

The image acquisition device is used for optical image acquisition of an optical map graph formed on the detected corneal surface through the optical aperture

Methodology Applied
Scientific EffectOptical imaging: Lens

Data Source

PatentUS12390106B2Eye image analysis system based on additional floodlight projection device and ophthalmic slit lamp
Publication Date: 2025.08.19 KANG HUA RUI MING SCI & TECH CO LTD
  • US12390106B2 patent drawing
  • US12390106B2 patent drawing
  • US12390106B2 patent drawing

AI summary

An eye image analysis system based on an additional floodlight projection device and an ophthalmic slit lamp, comprising an ophthalmic slit lamp microscope detector, the additional floodlight projection device, an image acquisition device, and an image analysis device. The additional floodlight projection device is detachably and rotatably connected to the ophthalmic slit lamp microscope detector and used for forming a floodlight map graph with special reticulate patterns on the cornea to be detected. The image acquisition device is used for performing, optical image collection on the floodlight map graph to form an examination data packet and sending the examination data packet to the image analysis device, and the image analysis device is used for performing processed processing, digitized filtering comparison and measurement, and pathological analysis on the obtained examination data packet to obtain a pathological examination result.