Multi-Point OCT Light Path Structure for Large-Area Diagnosis
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Solution Overview
Problem
Conventional OCT diagnosis apparatuses are time-consuming and inconvenient for large-area diagnosis due to their complex structure and the need for galvo-mirrors to change diagnosis points, limiting their practical applications.
Innovation Solution
A large area optical diagnosis apparatus with a re-designed light path structure and sensing module that divides coherent light into multiple incident lights for simultaneous multi-point detection without rotation mirrors, allowing for simultaneous diagnosis of multiple points and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional OCT diagnosis apparatus uses galvo-mirrors to change diagnosis points, then diagnosis coverage can be achieved, but device complexity increases and diagnosis time increases
Solution Approach 1:
The patent divides the single coherent light beam into multiple independent light paths using optical beam splitters, with each light path directed toward a different diagnosis point. This segmentation allows simultaneous multi-point diagnosis without requiring galvo-mirrors, thereby reducing device complexity while maintaining comprehensive diagnosis coverage.
Solution Approach 2:
The patent transitions from sequential diagnosis (one point at a time) to parallel diagnosis (multiple points simultaneously) by introducing spatial dimensionality through multiple light paths. This dimensional change enables simultaneous detection at multiple locations, eliminating the need for mechanical scanning and reducing both complexity and time requirements.
2Measurement precision
If conventional OCT diagnosis apparatus diagnoses points one by one, then measurement precision can be maintained, but diagnosis time increases and productivity decreases
Solution Approach 1:
The patent merges multiple diagnosis operations into a single simultaneous process by directing multiple light paths to different diagnosis points concurrently. Each light path maintains its own coherence and detection capability, ensuring that measurement precision is preserved while achieving parallel processing that significantly improves productivity.
Solution Approach 2:
The patent enables continuous simultaneous detection at multiple points without interruption, as all light paths operate concurrently rather than sequentially. This continuous parallel action eliminates the time losses associated with sequential scanning while maintaining the precision required for accurate diagnosis at each point.
3Device complexity
If conventional OCT diagnosis apparatus uses single light path, then device structure is simple, but cannot achieve large-area simultaneous diagnosis
Solution Approach 1:
The patent segments the single light path into multiple parallel light paths using optical beam splitters, enabling simultaneous diagnosis at multiple points across large areas. This segmentation increases productivity while keeping each individual light path simple, and the overall system remains manageable through modular architecture.
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
The apparatus achieves efficient large-area diagnosis by simultaneous multi-point detection, significantly reducing diagnosis time and improving efficiency compared to conventional OCT systems.
Implementation Method 1
a light source (20), a light path structure (22), and a sensing module (27). The light source (20) emits a coherent light
Implementation Method 2
The light path structure (22) includes a plurality of optical units (220, 222, 224) for dividing the coherent light into a plurality of first incident lights (La1～Lam) and a plurality of second incident lights (Lb1～Lbm)
Implementation Method 3
The object to be diagnosed (26) and the reference end (24) reflect the plurality of first incident lights (La1～Lam) and the plurality of second incident lights (Lb1～Lbm) to be a plurality of reflected lights (Ra1～Ram, RB1～RBm) respectively
Implementation Method 4
The sensing module (27) senses the plurality of reflected lights (Ra1～Ram, RB1～RBm) to generate a sensing result related to the object to be diagnosed (26)
Implementation Method 5
achieve the effect of synchronous multi-point optical coherence tomography (OCT) diagnosis
Data Source
AI summary
A large area optical diagnosis apparatus and the operating method thereof are disclosed. The large area optical diagnosis apparatus includes a light source, a light path structure, and a sensing module. The light source is used to at least emit a coherent light. The light path structure includes a plurality of optical units used for dividing the coherent light into a plurality of first incident lights and a plurality of second incident lights. The plurality of first incident lights are emitted toward an object to be diagnosed and the plurality of second incident lights are emitted toward a reference end. The object to be diagnosed and the reference end reflect the plurality of first incident lights and the plurality of second incident lights to be a plurality of reflected lights. The sensing module senses the plurality of reflected lights to generate a sensing result related to the object to be diagnosed.