Light Source Case Temperature Control for Stable Analyzer Output

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Solution Overview

Problem

Existing analyzing devices face issues with light source temperature fluctuations due to exposure to outside air, leading to prolonged stabilization times and inconsistent light quantity, especially in varying environmental conditions.

Innovation Solution

The analyzing device incorporates a case internal temperature control mechanism and a base temperature control mechanism to maintain a constant temperature environment for the light source, using a constant temperature liquid to preheat and stabilize the light source components, reducing exposure to external temperature fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the light source unit is disposed as an independent part not temperature-controlled, then there is good workability for replacing a light source, but the time it takes from powering on to stable light quantity becomes long when outside air temperature is low

Engineering Contradiction:
Improveworkability for replacing light sourceVSAvoidtime to stable light quantity
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The light source is preheated by the heating mechanism before measurement begins, so that when the light source is powered on, it is already at or near the optimal operating temperature, significantly reducing the stabilization time

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If the light source unit is disposed as an independent part not temperature-controlled, then there is good workability for replacing a light source, but light quantity fluctuates when outside air temperature fluctuates

Engineering Contradiction:
Improveworkability for replacing light sourceVSAvoidlight quantity stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The control mechanism monitors the temperature of the light source and adjusts the heating mechanism accordingly to maintain a constant temperature, thereby stabilizing the light quantity despite external temperature fluctuations

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system actively controls and maintains the temperature parameter of the light source at a constant value through the heating mechanism, preventing light quantity fluctuations caused by external temperature changes

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If the light source is exposed to outside air, then the structure is simple, but temperature control accuracy deteriorates

Engineering Contradiction:
Improvestructural simplicityVSAvoidtemperature control accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The case acts as an intermediary enclosure between the light source and the external environment, providing thermal isolation while the heating mechanism provides active temperature control within the case, achieving both simplicity and precision

Inventive Principle:
Principle #24Intermediary (Mediator)

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 shortens the time to stable light output, stabilizes light quantity, and reduces temperature fluctuations, ensuring consistent performance regardless of external temperature variations.

Implementation Method 1

a heating mechanism that heats the base

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

a light emitting element that emits light

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentUS20250341458A1Analyzing device
Publication Date: 2025.11.06 HITACHI HIGH TECH CORP
  • US20250341458A1 patent drawing
  • US20250341458A1 patent drawing
  • US20250341458A1 patent drawing

AI summary

An object of the present disclosure is to provide an analyzing device that can use a light source effectively by appropriately controlling the temperature of the light source. The analyzing device according to the present disclosure includes a case internal temperature control mechanism that controls the temperature inside a light source case, a base supporting a substrate on which a light emitting element is mounted, and a base temperature control mechanism that controls the temperature of the base. The base temperature control mechanism covers the base so that the base is not exposed to the outside air (see FIG. 2).