Frequency-Resolved Optical Measurement with Multi-Collimator Channels

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Solution Overview

Problem

Existing optoelectronic measuring devices for frequency-resolved measurement of electromagnetic radiation are not sufficiently sensitive and compact.

Innovation Solution

The device employs multiple measurement channels with different spectral sensitivities and collimators, each with a separate optical path, and optionally includes collimation lenses, aperture diaphragms, and radiation absorption elements to enhance sensitivity and compactness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple measurement channels with different spectral sensitivities are used, then spectral resolution is improved, but device complexity increases

Engineering Contradiction:

Improvespectral resolutionVSAvoiddevice complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The device is divided into multiple measurement channels, each with different spectral sensitivities. Each channel processes a specific spectral range independently, enabling frequency-resolved measurement while maintaining manageable complexity through modular architecture

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple measurement channels serve multiple functions: each channel can detect different spectral ranges, and collectively they provide comprehensive spectral analysis. The collimators also serve dual purposes of beam shaping and spatial filtering across all channels

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple collimators are used to increase sensitivity, then measurement precision is improved, but device size increases

Engineering Contradiction:

ImprovesensitivityVSAvoiddevice size

Core Design Contradiction:

Measurement precisionVSArea of stationary object

Solution Approach 1:

The collimators are arranged in a compact configuration where multiple optical paths are nested within a reduced spatial footprint. The aperture diaphragms are positioned to share common structural elements, allowing multiple collimators to coexist in a smaller overall device area

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The optical paths of multiple collimators are arranged in a three-dimensional configuration rather than a simple linear expansion. By utilizing vertical stacking and angular separation of optical paths, the device achieves high sensitivity with multiple collimators without proportionally increasing the device's planar area

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Ease of manufacture

If aperture diaphragms with monolithic connection to lenses are used, then manufacturing ease is improved, but optical precision may be compromised

Engineering Contradiction:

Improveease of manufactureVSAvoidoptical precision

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The aperture diaphragm and collimation lens are merged into a single monolithic component. This integration simplifies the manufacturing process by reducing the number of assembly steps and alignment requirements, while the monolithic structure itself ensures precise optical properties without the need for separate mounting mechanisms

Inventive Principle:

Principle #5Merging (Combining)

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

The solution increases sensitivity and reduces the device's size while maintaining spectral resolution, allowing for accurate frequency-resolved measurement of electromagnetic radiation.

Implementation Method 1

at least one of the collimators comprises a collimation lens and an aperture diaphragm

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 2

a diaphragm membrane which is opaque for the electromagnetic radiation and in which at least one opening through which the electromagnetic radiation passes is provided

Methodology Applied

Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Data Source

PatentUS12529597B2Optoelectronic measuring device for measuring the intensity of electromagnetic radiation in a frequency-resolved manner

Publication Date: 2026.01.20 OSRAM OPTO SEMICON GMBH & CO OHG

AI summary

An optoelectronic measuring device may be used for the frequency-resolved measurement of an intensity of electromagnetic radiation. The device may include a plurality of measurement channels. A first of the measurement channels may have a first spectral sensitivity, and a further of the measurement channels may have a further spectral sensitivity different from the first spectral sensitivity. The device may further include a plurality of collimators for collimating the electromagnetic radiation. A separate optical path may extend through each of the collimators to one or more of the measurement channels. Each of the measurement channels may be arranged to measure an intensity of the electromagnetic radiation collimated by means of one or more of the collimators. The optoelectronic measuring device may have more collimators as compared to measurement channels.