Variable Optical Path Light Detection for High-Absorption Samples
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Solution Overview
Problem
Conventional optical analyzers face challenges with low signal-to-noise ratios when analyzing samples with strong absorption characteristics, leading to compromised precision and accuracy in spectral interpretation and quantitative analysis.
Innovation Solution
A light-emitting device and detection system with adjustable beam paths and multi-wavelength control, utilizing a variable dimension space and a detector set to enhance signal-to-noise ratios by adjusting beam lengths and wavelengths, eliminating the need for monochromators and improving beam path efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed beam path length is used in conventional optical analyzers, then the device structure is simple, but the signal-to-noise ratio deteriorates when analyzing samples with strong absorption characteristics
Solution Approach 1:
The patent implements variable beam path lengths by making the optical path adjustable during measurement. The system can dynamically change the beam path length to optimize the signal-to-noise ratio for different absorption strengths, transforming a static fixed-path system into a dynamic adjustable-path system.
Solution Approach 2:
The patent changes the beam path length parameter to adapt to different sample absorption characteristics. By adjusting this physical parameter, the system optimizes the transmitted light intensity to maintain adequate signal-to-noise ratio without requiring complex additional components.
2Adaptability or versatility
If a single wavelength beam is used, then the device structure is simple, but the ability to analyze samples with different absorption characteristics is limited
Solution Approach 1:
The patent makes a single light-emitting element perform multiple functions by adjusting its operating parameters (current, temperature) to emit different wavelengths. This allows one component to serve multiple analytical purposes, eliminating the need for multiple dedicated light sources for different wavelength ranges.
Solution Approach 2:
The patent changes the wavelength parameter of the light-emitting element by adjusting operating conditions such as current and temperature. This enables the same physical component to emit different wavelengths suitable for analyzing samples with varying absorption characteristics.
3Measurement precision
If monochromators are used to select specific wavelengths, then wavelength selection capability is improved, but the device complexity and beam path length increase
Solution Approach 1:
The patent extracts and eliminates the monochromator component from the optical system. Instead of using a monochromator for wavelength selection, the system directly uses adjustable-wavelength light-emitting elements, removing the complex wavelength-selecting subsystem while maintaining wavelength control capability.
Solution Approach 2:
The patent replaces the mechanical monochromator system with an electrical/control-based approach where light-emitting element parameters are adjusted electronically to change wavelength. This substitutes a mechanical optical system with a more compact controllable system.
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 system achieves improved signal-to-noise ratios, enhancing spectral resolution and analytical precision for high-absorption samples, allowing for more accurate fluid composition analysis.
Implementation Method 1
The light-emitting device includes a group of rays from a light-emitting element, the group of rays includes a first beam of a first wavelength range and of a first peak wavelength as well as a second beam of a second wavelength range and of a second peak wavelength
Implementation Method 2
The detector set detects the group of rays
Implementation Method 3
The variable dimension space is disposed between the group of rays and the detector set, and includes a first beam path of a first length for the first beam to pass through and a second beam path of a second length for the second beam to pass through
Data Source
AI summary
The present invention proposes a light-emitting device and a light detection device which includes the light-emitting device. The light-emitting device includes a group of rays, a detector set to detect the group of rays, and a variable dimension space disposed between the rays and the detector set. The rays include a first beam of a first wavelength range and a first peak wavelength, and a second beam of a second wavelength range and a second peak wavelength different from the first peak wavelength. The variable dimension space disposed between the group of rays and the detector set and includes a first beam path of a first length for the first beam to pass through and a second beam path of a second length for the second beam to pass through. The first length is different from the second length.