Spectrometer Emission-Line Light Source Pre-Irradiation for Stable Calibration

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Solution Overview

Problem

The light emission of the emission-line light source in spectroscopic devices is unstable at the start of wavelength calibration, leading to decreased calibration accuracy and prolonged calibration times due to the dark effect when left in a dark place.

Innovation Solution

Irradiate the emission-line light source with direct light from a second light source before its drive start to stabilize light emission and reduce the time required for wavelength calibration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the emission-line light source is left in a dark place before wavelength calibration, then the device structure is simple, but the light emission becomes unstable and calibration accuracy decreases

Engineering Contradiction:
Improvedevice structureVSAvoidcalibration accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by having the second light source irradiate the emission-line light source before the wavelength calibration measurement starts. This pre-irradiation prevents the dark effect and stabilizes light emission before the actual measurement, thereby improving calibration accuracy without complicating the overall device structure.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If multiple measurements are performed to improve calibration accuracy, then calibration precision improves, but calibration time increases

Engineering Contradiction:
Improvecalibration accuracyVSAvoidcalibration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent uses preliminary action by pre-irradiating the emission-line light source with the second light source before wavelength calibration. This stabilizes the light emission in advance, allowing for faster and more accurate calibration without requiring multiple repeated measurements, thus reducing calibration time while maintaining precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent converts the harmful dark effect into a beneficial pre-conditioning effect. By intentionally irradiating the emission-line light source before measurement, the patent transforms what would normally be a problematic dark adaptation period into a useful stabilization phase that improves both accuracy and speed of calibration.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Stability of the object's composition

If the emission-line light source is irradiated before drive start, then light emission stability improves, but device complexity increases

Engineering Contradiction:
Improvelight emission stabilityVSAvoiddevice structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies multi-functionality by using the second light source to serve dual purposes: it acts as both a measurement light source and a pre-irradiation source to stabilize the emission-line light source. This universal use of the second light source improves light emission stability without requiring additional dedicated components, thus avoiding excessive device complexity.

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

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

Stabilizes light emission, improves calibration accuracy, and reduces calibration time by preventing the dark effect, allowing for highly accurate wavelength calibration in a shorter duration.

Implementation Method 1

an emission-line light source that emits an emission line for wavelength calibration

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Implementation Method 2

the second light source is arranged to irradiate the emission-line light source with direct light from the second light source

Methodology Applied
Scientific EffectLight irradiation: Light

Data Source

PatentUS20250244233A1Spectroscopic device and light emission control method of light source in spectroscopic device
Publication Date: 2025.07.31 KONICA MINOLTA INC
  • US20250244233A1 patent drawing
  • US20250244233A1 patent drawing
  • US20250244233A1 patent drawing

AI summary

A spectroscopic device includes a spectrometer, an emission-line light source that emits an emission line for wavelength calibration, and a second light source. The second light source is arranged to irradiate the emission-line light source with direct light from the second light source.