Coaxial Reflective Object Lens for Low-Loss Spectral Analysis
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Solution Overview
Problem
Existing analysis devices suffer from attenuation of secondary electromagnetic waves, leading to reduced analysis accuracy due to the use of optical fibers, which cause loss of signal strength.
Innovation Solution
The analysis device employs a reflective object lens with a primary and secondary mirror configuration that transmits primary electromagnetic waves coaxially, allowing for maximum collection of secondary electromagnetic waves without optical fibers, and uses a spectroscopic element to separate and guide different wavelength regions to dedicated detectors, minimizing loss and enhancing detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If optical fiber is used to guide secondary electromagnetic wave to detector, then device structure is simplified, but signal loss increases and detection accuracy deteriorates
Solution Approach 1:
The patent extracts the optical fiber from the system and replaces it with a free-space optical path. The secondary electromagnetic wave is guided directly from the collection head to the detector through air/vacuum space, eliminating the optical fiber component that causes signal attenuation while maintaining device functionality.
Solution Approach 2:
The patent introduces a reflective optical system (mirrors and lenses) as an intermediary to guide the secondary electromagnetic wave from the collection head to the detector. This reflective path serves as a mediator that transfers the signal without the absorption and scattering losses inherent in optical fiber transmission.
2Ease of operation
If optical fiber is used to transmit secondary electromagnetic wave, then connection is simplified, but signal attenuation occurs and analysis accuracy reduces
Solution Approach 1:
The patent replaces the mechanical/optical coupling system (optical fiber connection) with a free-space optical transmission system. The connection between collection head and detector is established through electromagnetic wave propagation in free space, guided by reflective optical elements, eliminating the physical optical fiber connection that causes signal loss.
3Measurement precision
If reflective object lens with coaxial transmission is used, then collection efficiency of secondary electromagnetic wave is improved, but device complexity increases
Solution Approach 1:
The reflective object lens is designed to perform multiple functions: it collects the secondary electromagnetic wave from the sample, transmits the primary electromagnetic wave coaxially through its central opening, and guides both beams along the same optical path. This multi-functionality reduces the need for separate optical components for excitation and collection.
Solution Approach 2:
The optical path for the secondary electromagnetic wave is nested within the same spatial structure as the primary electromagnetic wave path. The secondary wave is collected and transmitted through the central opening of the reflective object lens, while the primary wave passes through the same opening, creating a nested or co-axial arrangement that maximizes space utilization.
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 significantly enhances detection accuracy by reducing wave loss and improving wavelength resolution, thereby improving the overall measurement precision of the analysis device.
Implementation Method 1
a primary mirror in which an opening is provided at a radial center and a primary reflection surface reflecting a secondary electromagnetic wave, generated in the analyte in response to the emission of the primary electromagnetic wave, is provided around the opening
Implementation Method 2
a secondary mirror provided with a secondary reflection surface that receives and further reflects the secondary electromagnetic wave reflected by the primary reflection surface
Implementation Method 3
a transmissive region through which the primary electromagnetic wave is transmitted is provided at a center of the secondary mirror
Data Source
AI summary
An analysis and observation device includes: an electromagnetic wave emitter that emits a primary electromagnetic wave; a reflective object lens having a primary mirror provided with a primary reflection surface reflecting a secondary electromagnetic wave and a secondary mirror provided with a secondary reflection surface receiving and further reflecting the secondary electromagnetic wave; first and second detectors that receive the secondary electromagnetic wave and generate an intensity distribution spectrum; and a controller that performs component analysis of a sample based on the intensity distribution spectrum. A transmissive region through which the primary electromagnetic wave is transmitted is provided at a center of the secondary mirror. The transmissive region transmits the primary electromagnetic wave, which has been emitted from the electromagnetic wave emitter and passed through an opening of the primary mirror, thereby emitting the primary electromagnetic wave along an analysis optical axis of the reflective object lens.