Rapid Optical Path Change in Interference Detection
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Solution Overview
Problem
Conventional optical interference detection apparatuses lack the capability to rapidly change the optical path of reference light, resulting in inadequate detection efficiency.
Innovation Solution
An optical apparatus employing a reference light reflection module with a horizontal moving mechanism or rotational mechanism to rapidly change the optical path, including designs such as a ladder-form reflection unit and modular rotary structures, enhances the speed of optical path changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional scanning platform with a reflection mirror is used to change the optical path of reference light, then the optical interference detection can be performed, but the detection efficiency is insufficient due to the inability to rapidly change the optical path
Solution Approach 1:
The patent applies the dynamics principle by replacing the conventional slow scanning platform with a rapid optical path changing mechanism. The new system uses movable reflection mirrors or prism assemblies that can dynamically and rapidly adjust the optical path length of reference light, enabling fast optical coherence tomography imaging while maintaining interference detection capability. This dynamic adjustment mechanism significantly improves both the speed of optical path change and overall detection efficiency.
2Measurement precision
If the reflection mirror position is moved along the z-direction to obtain different optical path differences, then the matter characteristics can be detected, but the detection speed is limited by the scanning mechanism
Solution Approach 1:
The patent replaces the conventional mechanical scanning system with a rapidly adjustable optical path changing mechanism. Instead of moving the reflection mirror along the z-direction through slow mechanical scanning, the invention uses a system with movable reflection mirrors or prisms that can rapidly change optical path length through controlled movement in perpendicular directions or rotational motion. This substitution maintains precise optical path difference control while dramatically reducing detection time.
3Ease of operation
If a scanning platform is used to move the reflection mirror back and forth, then optical interference detection can be performed, but the combination mechanism fails to provide rapid optical path changing function
Solution Approach 1:
The patent applies segmentation by dividing the optical path changing function into independent, rapidly adjustable components. Instead of a single scanning platform moving one reflection mirror, the invention uses multiple reflection mirrors or prism assemblies that can be independently and rapidly adjusted. This segmented approach allows each component to contribute to the overall optical path difference control, enabling rapid optical path changing while maintaining ease of operation through modular control.
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 approach significantly increases the detection efficiency of the optical apparatus, allowing for precise and rapid optical detection, particularly in medical diagnostics like measuring human axial length, by adjusting the reflection unit's position based on individual factors.
Implementation Method 1
the optical coupling module receives a first reflected light generated by the reference light reflection module reflecting the reference light and a second reflected light generated by the object reflecting the detection light and it interferes the first reflected light and second reflected light to generate a light interference signal
Data Source
AI summary
An optical apparatus includes a light source, an optical coupling module, a reference light reflection module, and a data processing module. The light source provides an incident light. The optical coupling module divides the incident light into a reference light and a detection light emitting to the reference light reflection module and the object respectively. The reference light reflection module reflects the reference light and rapidly change the optical path of the reference light. The optical coupling module receives a first reflected light generated by the reference light reflection module reflecting the reference light and a second reflected light generated by the object reflecting the detection light and it interferes the first reflected light and second reflected light to generate a light interference signal. The data processing module receives and analyzes the light interference signal to obtain an optical detection result related to the object.