Grating and Dichroic Beam Splitter-Prism Detector System
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Solution Overview
Problem
Existing systems for detecting electromagnetic radiation are limited in optimizing the application of multiple detectors and wavelength dispersing elements arranged sequentially, where each element receives a reflected altered spectral content beam from a preceding element, and fails to effectively produce and direct separate wavelength ranges to related detectors.
Innovation Solution
A system comprising a sequence of at least two elements, including gratings and combination dichroic beam splitter-prisms, where a spectroscopic beam produces diffracted and transmitted spectra, with altered spectral content beams directed to subsequent elements to optimize wavelength detection and dispersion across multiple detectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple detectors and wavelength dispersing elements are arranged sequentially to detect different wavelength ranges, then the detection capability across various wavelength ranges is improved, but the system complexity increases
Solution Approach 1:
The system divides the broadband electromagnetic radiation into multiple wavelength ranges using sequential wavelength dispersing elements (gratings and dichroic beam splitter-prisms). Each element segments the spectrum and directs specific wavelength ranges to optimized detectors, enabling multi-wavelength detection while managing system complexity through modular segmentation
Solution Approach 2:
The patent creates a universal detection system where multiple wavelength dispersing elements and detectors work together to handle various wavelength ranges (UV, visible, IR). The system can detect different wavelength ranges simultaneously using different detector types (photodiode, photomultiplier, InSb, MCT detectors), making it adaptable to diverse detection needs
2Measurement precision
If beam splitters are used to direct portions of beams into different detectors optimized for different wavelength ranges, then the wavelength-specific detection is improved, but the loss of spectral content increases
Solution Approach 1:
Instead of using a single beam splitter that divides the beam into separate wavelength ranges (potentially losing spectral content), the patent uses sequential wavelength dispersing elements that process different portions of the spectrum in sequence. Each element receives a reflected altered spectral content beam from the preceding element, ensuring complete spectral coverage without loss
Solution Approach 2:
The patent introduces wavelength dispersing elements (gratings and dichroic beam splitter-prisms) as intermediaries between the broadband beam and the detectors. These intermediaries disperse the spectrum and direct specific wavelength ranges to appropriate detectors, enabling precise wavelength-specific detection while maintaining energy efficiency through optimized optical paths
3Measurement precision
If monochromator systems use a sequence of gratings to select desired wavelengths, then the wavelength selection precision is improved, but the detection speed decreases
Solution Approach 1:
The patent segments the wavelength selection process into multiple parallel paths using sequential wavelength dispersing elements. Instead of sequentially scanning through wavelengths with a single monochromator, the system simultaneously disperses and detects multiple wavelength ranges using multiple detectors, maintaining high wavelength selection precision while significantly improving detection speed through parallel processing
Solution Approach 2:
The patent implements periodic action by using multiple detectors that simultaneously detect different wavelength ranges. This parallel detection approach eliminates the need for sequential wavelength scanning, maintaining precise wavelength selection while achieving continuous, high-speed detection across all wavelength ranges
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 system enhances the production and detection of separate wavelength ranges by optimizing the arrangement of gratings and dichroic beam splitter-prisms, allowing for improved spectral content distribution and detection across multiple detectors, addressing the limitations of existing technologies.
Implementation Method 1
a grating which when presented with an incident spectroscopic beam of electromagnetic radiation produces a spectrum of diffracted dispersed wavelengths
Implementation Method 2
a combination dichroic beam splitter-prism which when presented with a spectroscopic beam of electromagnetic radiation produces a spectrum of dispersed wavelengths that transmit through and exit from said prism, and simultaneous therewith an altered spectral content reflected beam of electromagnetic radiation
Data Source
AI summary
Application of detectors of electromagnetic radiation and systems for enabling the optimization thereof for application over various specific wavelength ranges, involving functional combinations of gratings and/or combination dichroic beam splitter-prisms, which themselves can be optimized as regards wavelength dispersion characteristics.