Board-Mounted Optical Sensor Module for Narrow-Space Fluorescence Sensing

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Solution Overview

Problem

Existing optical sensor measurement systems require a perpendicular space for optical fibers and become complicated with increased sensor counts, limiting their installation in narrow spaces and reducing received light intensity.

Innovation Solution

An optical sensor measurement module with a board-mounted light emitting and receiving elements, allowing installation in narrow spaces and achieving high received light intensity through wide-area excitation and large light receiving areas, accompanied by a positioning jig for precise alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If optical fibers are used for measurement, then light transmission can be achieved, but a perpendicular space is required which limits installation in narrow spaces

Engineering Contradiction:
Improvereceived light intensityVSAvoidspace requirement
Core Design Contradiction:
Illumination intensityVSVolume of moving object

Solution Approach 1:

The patent combines the light emitting element and light receiving element into a single integrated module that contacts the optical sensor directly, eliminating the need for separate optical fiber connections. This merging of functions into one compact unit reduces the perpendicular space requirement while maintaining effective light transmission for measurement.

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If the number of sensors increases, then measurement coverage improves, but connection complexity increases

Engineering Contradiction:
Improvenumber of sensorsVSAvoidconnection complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

By integrating multiple light emitting and receiving elements into a single measurement module that contacts the optical sensor directly, the patent reduces the number of separate connections needed. This direct contact approach allows multiple sensing points to be accessed through one module interface, simplifying the connection architecture as sensor quantity increases.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If optical fibers are used, then light transmission is achieved, but alignment and connection becomes complicated

Engineering Contradiction:
Improvelight transmissionVSAvoidalignment and connection
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent merges the light emitting and receiving functions into a single module that makes direct contact with the optical sensor. This integration eliminates the need for complex optical fiber alignment and connection procedures, as the module itself serves as both the light source and detector in direct contact with the sensor, greatly simplifying installation and operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The measurement module is designed to self-align and make direct contact with the optical sensor without requiring complex external alignment mechanisms. The integrated design allows the module to serve its own alignment and connection functions, eliminating the need for separate alignment procedures and reducing operational complexity.

Inventive Principle:
Principle #25Self-service

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 installation in narrow spaces with enhanced light intensity and simplified alignment, facilitating efficient monitoring of dissolved oxygen concentration in various containers.

Implementation Method 1

a light emitting element on the surface of the board; and a light receiving element on the surface of the board, wherein the light emitting element is configured to irradiate an optical sensor with excitation light, and the light receiving element is configured to receive sensor light that is fluorescently emitted from the optical sensor

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Implementation Method 2

the light receiving element is configured to receive sensor light that is fluorescently emitted from the optical sensor

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Data Source

PatentUS20250347626A1Optical sensor measurement module, optical sensor measurement set, and detection device
Publication Date: 2025.11.13 MURATA MFG CO LTD
  • US20250347626A1 patent drawing
  • US20250347626A1 patent drawing
  • US20250347626A1 patent drawing

AI summary

An optical sensor measurement module that includes: a board having a surface; a light emitting element on the surface of the board; and a light receiving element on the surface of the board, wherein the light emitting element is configured to irradiate an optical sensor with excitation light, and the light receiving element is configured to receive sensor light that is fluorescently emitted from the optical sensor.