Wavelength-Filtered Electromagnetic Wave Detector Alignment

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Solution Overview

Problem

Existing electromagnetic wave detection systems suffer from reduced detection accuracy due to the incidence of electromagnetic waves outside the allocated wavelength band on detectors, leading to misalignment of optical axes and reduced coordinate system precision.

Innovation Solution

The system employs a separation unit to separate electromagnetic waves into specific wavelength bands, a blocker to filter out unwanted wavelengths, and a propagation unit to switch and align the optical axes, enhancing detection accuracy by blocking and redirecting non-target wavelengths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a plurality of detectors detect electromagnetic waves without wavelength filtering, then the detection system can capture broad spectral information, but electromagnetic waves outside the allocated wavelength band reduce detection accuracy

Engineering Contradiction:
Improvedetection bandwidthVSAvoiddetection accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent segments the electromagnetic wave detection by wavelength bands using multiple detectors, each assigned to detect specific wavelength bands. A separation unit divides incoming electromagnetic waves into different wavelength components, directing each band to the appropriate detector. This segmentation allows each detector to operate within its optimal wavelength range, improving detection accuracy while maintaining broad spectral coverage through the combined capability of multiple detectors.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a separation unit as an intermediary component between the electromagnetic wave source and the detectors. This separation unit acts as a mediator that filters and directs different wavelength bands to appropriate detectors, preventing unwanted wavelengths from reaching detectors outside their allocated bands. This intermediary mechanism resolves the contradiction by enabling wavelength-selective detection without requiring each detector to be perfectly isolated.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If electromagnetic waves of different wavelength bands are directed to the same detector, then the system structure is simplified, but the optical axes become misaligned and coordinate system precision is reduced

Engineering Contradiction:
Improvesystem structureVSAvoidcoordinate system precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent segments the detection system into multiple detectors, each dedicated to specific wavelength bands. This segmentation naturally separates the optical paths for different wavelength bands, as each detector has its own optical axis aligned for its designated band. The separation unit further segments the incoming electromagnetic waves, directing each wavelength band to the appropriate detector segment. This segmentation approach maintains coordinate system precision by ensuring that each detector receives only its allocated wavelength band along its properly aligned optical axis.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent resolves the alignment issue by transitioning from a single-dimensional detection approach (one detector for all wavelengths) to a multi-dimensional approach where detectors are arranged in a spatial configuration that accommodates multiple optical axes. Each detector is positioned and oriented in a specific dimension to receive its allocated wavelength band, transforming the problem from a single optical path into multiple optimized optical paths that can coexist without interference.

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

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

This configuration improves detection accuracy by reducing the incidence of non-target wavelengths on detectors, aligns optical axes, and enhances coordinate system precision, resulting in more accurate electromagnetic wave detection.

Implementation Method 1

a separation unit that separates electromagnetic waves into wavelength bands

Methodology Applied
Scientific EffectWavelength separation: Dispersion (of waves)

Implementation Method 2

a blocker that blocks electromagnetic waves in a wavelength band other than an allocated wavelength band of a detector

Methodology Applied
Scientific EffectElectromagnetic wave blocking: Absorption (EM radiation)

Data Source

PatentEP3779380B1Electromagnetic wave detection device and information acquisition system
Publication Date: 2025.10.15 KYOCERA CORP
  • EP3779380B1 patent drawingFigure 1
  • EP3779380B1 patent drawingFigure 2
  • EP3779380B1 patent drawingFigure 3

AI summary

An electromagnetic wave detection apparatus (10) includes a separation unit (16), first detector (17), propagation unit (18), second detector (20), and blocker (21). The separation unit (16) separates electromagnetic waves propagating in a first direction (d1) and propagates the electromagnetic waves in a second direction (d2) and a third direction (d3). The first detector (17) detects electromagnetic waves propagated in the second direction (d2). The propagation unit (18) includes pixels (px) along a reference surface (ss). The propagation unit (18) switches the propagation direction of electromagnetic waves propagated in the third direction (d3) and incident on the reference surface (ss) between a fourth direction (d4) and a fifth direction (d5) at each pixel (px). The second detector (20) detects the electromagnetic waves propagated in the fourth direction (d4). The blocker (21) blocks at least a portion of the electromagnetic waves propagated in the fifth direction (d5).