Optical Probe Rotation Mirror Transparent Electrode Shading

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Solution Overview

Problem

Optical probes used in medical imaging and diagnostics often suffer from shading issues, signal distortion due to optical fiber stress, and suboptimal electrical characteristics, which hinder precise and comprehensive tissue analysis.

Innovation Solution

An optical probe design featuring a transparent electrode surrounding a reflection surface, integrated with a rotation mechanism and power paths, allows for shadow-free light irradiation, reduced signal distortion, and improved electrical characteristics by minimizing the length of the transparent electrode and using low-resistance power paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a traditional optical probe design is used, then the structure is simple, but shading occurs in the light irradiation section

Engineering Contradiction:
Improvestructure simplicityVSAvoidshading in light irradiation
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The optical probe is divided into multiple functional segments: a light source unit, a separate rotation mirror unit with reflection surface, and a detection unit. This segmentation allows the light path to be separated from the electrode structure, eliminating shading while maintaining structural organization

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A transparent electrode is introduced as an intermediary component between the light path and the rotation mechanism. This transparent electrode conducts electricity while allowing light to pass through without obstruction, solving the shading problem while maintaining electrical functionality

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the optical fiber is rotated for scanning, then all sections can be detected, but signal distortion occurs due to optical fiber stress

Engineering Contradiction:
Improvedetection coverageVSAvoidsignal distortion
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The rotation function is extracted from the optical fiber and transferred to a separate rotation mirror unit. The optical fiber remains stationary while the mirror rotates to redirect light, eliminating stress-induced signal distortion while maintaining full-sectional detection capability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of rotating the entire optical fiber bundle, only the reflection surface (mirror) is rotated to copy the scanning function. This creates a functional duplicate of the scanning capability without the physical stress on the optical fiber

Inventive Principle:
Principle #26Copying

3Illumination intensity

If a transparent electrode is used, then light transmission is improved, but electrical resistance increases

Engineering Contradiction:
Improvelight transmissionVSAvoidelectrical resistance
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The physical parameters of the transparent electrode are optimized by minimizing its length along the light path and maximizing its width perpendicular to the light path. This parameter optimization reduces electrical resistance while maintaining adequate light transmission for the optical probe's functionality

Inventive Principle:
Principle #35Parameter changes

4Measurement precision

If high-speed rotation is implemented for accurate imaging, then image quality improves, but the structure becomes more complex

Engineering Contradiction:
Improveimage accuracyVSAvoidrotation mechanism complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Instead of rotating the entire probe structure or complex assemblies, only the lightweight reflection surface (mirror) is rotated. This inverted approach places the rotation function at the simplest possible point in the system, enabling high-speed rotation for accurate imaging while minimizing overall structural complexity

Inventive Principle:
Principle #13The other way round (Inversion)

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 accurate, high-speed imaging and detection of all sections without shading, while preventing signal distortion and lowering overall electrical resistance, thus enhancing the precision and reliability of medical imaging and diagnostics.

Implementation Method 1

a rotation part spaced apart from the optical input/output unit in a first direction and including a reflection surface

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS11045076B2Optical probe with rotation mirror
Publication Date: 2021.06.29 ELECTRONICS & TELECOMM RES INST
  • US11045076B2 patent drawing
  • US11045076B2 patent drawing
  • US11045076B2 patent drawing

AI summary

Provided is an optical probe. The optical probe includes an optical input/output unit, a rotation part spaced apart from the optical input/output unit in a first direction and including a reflection surface, and a transparent electrode provided around the reflection surface.