Reflecting Cavity with Segmented Contact and Reflecting Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sample measurement pools with reflecting mirrors face issues of poor environmental adaptability due to damage from high-temperature, high-humidity environments and corrosive substances, leading to reduced reflectivity and optical path disruptions.
Innovation Solution
A sample measurement pool design featuring a reflecting cavity with non-planar contact and reflecting surfaces, where the reflecting surface is not in direct contact with the sample, allowing for a protective structure and maintaining reflectivity even in harsh environments, using materials like glass or other chemically inert materials for the reflecting mirrors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a reflecting mirror with high-reflecting film is used to lengthen the optical path in a smaller spatial region, then the device size is reduced and optical path length is increased, but the reflecting film is damaged by samples and impurities in poor environments, reducing reflectivity and causing film peeling
Solution Approach 1:
The reflecting mirror surface is divided into two separate surfaces: a contact surface that interacts with the sample and a reflecting surface that performs the reflection function. This segmentation allows the reflecting surface to be protected from direct contact with samples and impurities, preventing film damage while maintaining the compact folded optical path design.
Solution Approach 2:
The contact surface acts as an intermediary between the sample and the reflecting surface. It exposes the non-planar contact surface to samples and impurities, protecting the high-reflecting film on the reflecting surface from direct contact and potential damage, thus maintaining reflectivity in poor environments.
2Use of energy by moving object
If the front surface of the reflecting mirror is plated with high-reflecting film to improve reflectivity, then light energy collection efficiency is improved, but the film is scratched and damaged by corrosive substances and impurities in poor environments, causing film peeling and optical path blocking
Solution Approach 1:
The contact surface serves as a protective intermediary that shields the high-reflecting film from corrosive substances and impurities. By designing the contact surface to be exposed to the sample environment while the reflecting surface remains protected, the film maintains its high reflectivity and avoids damage from harsh conditions.
3Strength
If multiple films are plated to create a protective metal reflecting film, then the film hardness and protection are improved, but the adhesion between films and substrate deteriorates, allowing gas and water vapor to enter and damage the film structure
Solution Approach 1:
The mirror structure is segmented into a contact surface and a reflecting surface. This eliminates the need for multiple film layers with adhesion issues, as the single reflecting surface with high-reflecting film does not require contact with the sample environment, maintaining film integrity without compromising adhesion.
4Measurement precision
If a straight transmission-type sample measurement pool is used to allow light beams to pass through a very long transmission path, then the detection sensitivity is improved, but the device becomes bulky and temperature stability and anti-vibration performance deteriorate
Solution Approach 1:
The reflecting mirror uses a non-planar curved surface (spherical, cylindrical, or other curved geometries) to reflect light. This curvature enables the light beam to follow a folded optical path within a compact space, achieving long effective optical path length for high detection sensitivity while maintaining a simple and stable device structure with good temperature stability and anti-vibration performance.
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 design enhances environmental adaptability and maintains high reflectivity by preventing damage to the reflecting surfaces, ensuring a long optical path and efficient light energy collection while minimizing interference from impurities and environmental stressors.
Implementation Method 1
the reflecting structure comprises a contact surface and a reflecting surface; the contact surface is in contact with the sample to be measured; the reflecting surface is away from the sample to be measured; at least one of the contact surface and the reflecting surface is a non-planar surface; after multiple reflections, incident light forms an optical measuring path in the reflecting cavity
Data Source
AI summary
A sample measurement pool comprises a reflecting cavity and at least one reflecting structure, wherein the reflecting cavity is configured to accommodate a sample to be measured; the reflecting structure is arranged at a boundary of the reflecting cavity; and the reflecting structure comprises a contact surface in contact with the sample to be measured, and a reflecting surface away from the sample to be measured. The sample contact surface has a chemical inertness to the sample, and meanwhile, the surface away from the sample to be measured serve as the reflecting surface, so that the sample to be measured and impurities therein are prevented from damaging the reflecting surface having a reflection function. The sample measurement pool has the advantages of a long optical path and high environmental adaptability.