Remote Sensing Mechanism With High-NA Waveguide Miniaturization

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Solution Overview

Problem

Existing remote sensing devices face challenges in optimizing light absorption/emission units for various applications, particularly in terms of miniaturization and flexibility, which are crucial for medical applications.

Innovation Solution

A remote sensing device with an optical waveguide having a high numerical aperture (>0.4, preferably >0.5 or >0.6) and a light absorption/emission unit at the distal end, capable of transversely localized light transmission, utilizing materials like diamond with nitrogen-vacancy centers for excitation and emission of secondary light, and incorporating structure elements for nonuniform light localization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the optical waveguide has a high numerical aperture (>0.4), then light collection efficiency is improved, but device dimensions increase

Engineering Contradiction:
Improvelight collection efficiencyVSAvoiddevice dimensions
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The patent changes the numerical aperture parameter of the optical waveguide to be greater than 0.4 (preferably >0.5 or >0.6), which fundamentally alters the light collection capability. This parameter change enables high light collection efficiency while maintaining small dimensions through optimized waveguide design

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces transverse localization of light transmission through structure elements within the waveguide, adding a spatial dimension to light control. This enables efficient light collection in the transverse direction while maintaining compact axial dimensions

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

2Volume of moving object

If the optical waveguide is miniaturized, then device dimensions are reduced, but light collection efficiency deteriorates

Engineering Contradiction:
Improvedevice dimensionsVSAvoidlight collection efficiency
Core Design Contradiction:
Volume of moving objectVSProductivity

Solution Approach 1:

The patent compensates for miniaturization by changing the numerical aperture parameter to >0.4, which maintains or enhances light collection efficiency despite reduced waveguide dimensions. This parameter optimization allows small devices to perform effectively

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces structure elements that create nonuniform light localization within the waveguide cross-section. This local quality enhancement concentrates light energy where needed, maintaining efficiency despite overall device miniaturization

Inventive Principle:
Principle #3Local quality

3Measurement precision

If structure elements are added for nonuniform light localization, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvemeasurement capabilitiesVSAvoidstructure elements
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent adds structure elements that create nonuniform light localization patterns within the waveguide. These elements provide spatially varying optical properties that enhance measurement precision for detecting measurement variables while adding controlled structural complexity

Inventive Principle:
Principle #3Local quality

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 high light collection efficiency with small dimensions, allowing for optimized performance in diverse applications and enabling miniaturization while maintaining effective measurement capabilities.

Implementation Method 1

an optical waveguide having a proximal end and a distal end, and adapted for transmission of the primary light from the proximal end to the distal end and/or for return transmission of secondary light with a second wavelength, which is induced at the distal end by the primary light, to the proximal end

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 2

a light absorption/emission unit at the distal end for absorption of the primary light and emission of secondary light for return transmission to the proximal end

Methodology Applied
Scientific EffectPhotoluminescence: Photoluminescence

Data Source

PatentUS20250288229A1Remote sensing mechanism device
Publication Date: 2025.09.18 SCHOTT AG
  • US20250288229A1 patent drawing
  • US20250288229A1 patent drawing
  • US20250288229A1 patent drawing

AI summary

The invention relates to a remote sensing mechanism device comprising a primary light source for emitting primary light at a specific wavelength, an optical waveguide having a proximal end and a distal end and configured to transfer the primary light from the proximal end to the distal end and to transfer secondary light, caused at the distal end by the primary light and preferably at a different wavelength, back to the proximal end, a light receiver/output unit arranged at the distal end of the optical waveguide and serving to receive the primary light from the distal end and output the secondary light to the distal end of the optical waveguide, and a secondary light receiver arranged at the proximal end of the optical waveguide and serving to receive the secondary light from the proximal end of the optical waveguide, the optical waveguide having a numerical aperture of greater than 0.5.