Spectrometer Readout Electronics With Interchangeable Channels

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Solution Overview

Problem

Existing spectrometer devices face challenges in achieving cost-effective, space-efficient, and power-constrained operation with interchangeable optical components for diverse applications, lacking off-the-shelf readout electronics and light sources that meet performance requirements.

Innovation Solution

A readout unit with interchangeable readout channels and a trigger channel, capable of monitoring operational parameters of different optoelectronic devices, including light emitting and photosensitive elements, to generate measurement signals simultaneously, and an integrated circuit for adjusting operation modes to enhance accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple specialized readout channels are designed for different optoelectronic devices, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvemeasurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The readout channel is designed with universal functionality to handle multiple types of optoelectronic devices (photodetectors, photodiodes, photomultipliers, CCDs, CMOS sensors) through a single standardized interface. The channel can be configured via control signals to adapt its measurement parameters, eliminating the need for multiple specialized channels while maintaining measurement precision across different device types.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The readout channel incorporates dynamic configurability through control signals that allow real-time adjustment of measurement parameters such as integration time, gain, and measurement mode. This dynamic adaptation enables the same hardware channel to optimize its performance for different optoelectronic devices without requiring dedicated specialized channels for each device type.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If broadband optical components are used to cover a wide wavelength range, then adaptability is improved, but cost increases

Engineering Contradiction:
Improvewavelength range coverageVSAvoidcost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Instead of using expensive broadband optical components that cover the entire wavelength range simultaneously, the system employs periodic action by sequentially switching between different narrowband light sources (e.g., LEDs at specific wavelengths) and their corresponding detectors. This time-multiplexed approach achieves wide wavelength range coverage through measurement of multiple discrete wavelength bands over time, significantly reducing component costs while maintaining adaptability.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The spectral measurement range is segmented into multiple discrete wavelength bands, each measured by dedicated narrowband light sources and detectors. This segmentation allows the use of inexpensive, specialized components for each wavelength band rather than expensive broadband components, while the overall system maintains the capability to measure across a wide spectral range through coordinated operation of multiple segmented channels.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple light sources and detectors are used to cover different wavelength ranges, then adaptability is improved, but space and power consumption increase

Engineering Contradiction:
Improveapplication rangeVSAvoidspace
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

Multiple light sources and detectors are merged into a single integrated measurement channel through time-multiplexed operation. The system combines multiple narrowband LEDs and their corresponding photodetectors into one shared readout channel, allowing sequential measurement of different wavelength ranges. This merging approach achieves wide application range adaptability while minimizing space requirements by eliminating the need for separate dedicated channels for each wavelength band.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system employs dynamic switching between different light source-detector combinations within a single measurement channel. Control signals dynamically activate specific LED-detector pairs based on the required wavelength range, enabling the system to adapt to different applications while maintaining a compact form factor. This dynamic reconfiguration allows multiple optical components to share the same physical space and power resources efficiently.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If multiple light sources and detectors are used to cover different wavelength ranges, then adaptability is improved, but power consumption increases

Engineering Contradiction:
Improveapplication rangeVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system uses periodic action by sequentially activating different light sources and detectors rather than operating all components simultaneously. Each measurement cycle activates only the specific LED-detector pair required for the current wavelength range, allowing other components to remain in low-power or standby mode. This periodic operation achieves wide application range adaptability while significantly reducing overall power consumption compared to having all components active at once.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically controls the power state of multiple light sources and detectors based on measurement requirements. Control logic activates only the necessary components for the current application, enabling the system to adapt to different wavelength ranges while optimizing power consumption by keeping unused components in low-power states. This dynamic power management maintains versatility across applications without the penalty of continuous high power consumption.

Inventive Principle:
Principle #15Dynamics

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 easy integration of various optical components, improves accuracy, and supports diverse applications by allowing simultaneous monitoring and adjustment of operational parameters, addressing space and power constraints.

Implementation Method 1

each readout channel is configured for monitoring at least one operational parameter of a, preferably different, optoelectronic device and, thereby, generating at least one measurement signal related to the at least one operational parameter of the optoelectronic device

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentEP4685445A1Integrated spectrometer readout electronics
Publication Date: 2026.01.28 TRINAMIX GMBH
  • EP4685445A1 patent drawingFigure 1A
  • EP4685445A1 patent drawingFigure 1B
  • EP4685445A1 patent drawingFigure 2A~2B

AI summary

The present invention relates to a readout unit (110) comprising at least two readout channels (112), wherein each readout channel (112) is configured for monitoring at least one operational parameter of an optoelectronic device (114) and, thereby, generating at least one measurement signal related to the operational parameter of the optoelectronic device (114) wherein the at least two readout channels (112) are configured to be fitted interchangeably with at least two different types of optoelectronic devices (114); at least one trigger channel (116) configured for triggering the monitoring of the operational parameters by using the at least two readout channels (112), wherein the triggering is performed in a simultaneous manner.