Optical Analysis Device Wide Wavelength Detection
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Solution Overview
Problem
Conventional optical analysis devices are unable to effectively measure across a wide range of wavelengths due to limitations in photodetector sensitivity and inefficient use of light sources, leading to energy loss and thermal effects.
Innovation Solution
The device employs a configuration with two light sources emitting different spectra, an optical element that reflects and transmits light, and separate output ports to combine and direct light optimally, allowing for effective use of light across the ultraviolet to infrared range, reducing energy loss and enabling measurements across a wide wavelength range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single photodetector is used to detect light across a wide wavelength range, then the device complexity is reduced, but the measurement precision deteriorates because the photodetector cannot be sufficiently sensitive across the entire ultraviolet to infrared range
Solution Approach 1:
The detection system is segmented into multiple photodetectors, each optimized for specific wavelength ranges (UV, visible, infrared). This segmentation allows each detector to operate within its optimal sensitivity range, resolving the contradiction between device simplicity and measurement precision across the full spectrum.
Solution Approach 2:
Multiple photodetectors with different spectral sensitivities are integrated into a single analysis device, creating a multi-functional detection system. Each photodetector serves a specific wavelength range function, collectively providing universal coverage from ultraviolet to infrared while maintaining high precision throughout.
2Adaptability or versatility
If the optical element reflects only a part of the incident light from the halogen lamp, then the ultraviolet to infrared light can be extracted selectively, but the energy loss increases and thermal effects are generated due to the wasted transmitted light
Solution Approach 1:
The optical system is designed so that light reflected by the optical element is continuously directed to the first photodetector for UV-visible detection, while transmitted light is continuously directed to the second photodetector for infrared detection. This continuous utilization of both reflected and transmitted light paths eliminates energy waste and prevents thermal effects while maintaining wavelength selection capability.
Solution Approach 2:
The previously wasted transmitted light is converted into a useful resource by directing it to the second photodetector for infrared detection. This transforms the harmful energy loss and thermal effect into a beneficial detection capability, allowing simultaneous UV-visible and infrared measurements without energy waste.
3Adaptability or versatility
If two light sources (deuterium lamp and halogen lamp) are used to cover ultraviolet to infrared range, then the wavelength coverage is improved, but the device complexity increases due to the need for multiple light sources and their combination
Solution Approach 1:
The deuterium lamp and halogen lamp systems are merged into a single integrated device with a shared optical path and sample cell. The optical element serves both light sources, and both systems detect through the same optical pathway, reducing overall device complexity while maintaining comprehensive wavelength coverage from ultraviolet to infrared.
Solution Approach 2:
The optical element acts as an intermediary that mediates between the two light sources and the detection system. It selectively reflects UV-visible light to the first photodetector and transmits infrared light to the second photodetector, simplifying the coordination between multiple light sources and enabling seamless wavelength coverage without complex switching mechanisms.
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 allows for balanced output of light across the ultraviolet to infrared range, reducing energy loss and enabling accurate measurements across a wide wavelength spectrum, while preventing thermal effects and optimizing light usage.
Implementation Method 1
an optical element that reflects a part and transmits another part of incident light
Implementation Method 2
an optical element that reflects a part and transmits another part of incident light
Implementation Method 3
a photodetector unit that detects the light transmitted through the optical cell
Data Source
AI summary
An optical analysis device that analyzes a sample by irradiating an optical cell containing the sample with light, and detecting light transmitted through the optical cell, the optical analysis device including: a first light source and a second light source each emitting light in a spectrum different from a spectrum of another; an optical element that reflects a part and transmits another part of incident light that has a first face on which the light from the first light source becomes incident and a second face on which the light from the second light source becomes incident; a first light output port provided on a light path of light emitted from the first light source and reflected on the first face, and light emitted from the second light source and transmitted through the second face; and a second light output port provided on a light path of light emitted from the first light source and transmitted through the first face.