Optical Integrity Detection Using Beam Splitters
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Solution Overview
Problem
The efficiency and safety of laser treatment systems are influenced by the optical connection between the laser generator and delivery system, which is not effectively monitored, leading to potential inefficiencies and safety hazards.
Innovation Solution
A method and apparatus using non-polarizing and polarizing beam splitters, detectors, and a calibration medium to assess the optical quality of optical elements in the laser system by transmitting coherent light and measuring energy levels reflected from both ends, providing a measure of optical quality and integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical connection monitoring is implemented using beam splitters and detectors, then safety and efficiency monitoring is improved, but device complexity increases
Solution Approach 1:
The patent introduces beam splitters as intermediary optical elements that redirect a portion of the laser beam to detectors without interfering with the main treatment beam. These beam splitters act as mediators between the laser source and monitoring detectors, enabling optical connection monitoring while maintaining the integrity of the treatment pathway.
Solution Approach 2:
The system uses the laser beam itself as the monitoring probe, directing a portion of the same beam through the optical delivery system to various detectors. This self-service approach allows the system to monitor its own optical connection quality using the operational beam, eliminating the need for separate monitoring light sources.
2Measurement precision
If multiple detectors are used to monitor different optical parameters, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the optical monitoring function into multiple detectors, each responsible for detecting specific optical parameters at different locations. One detector monitors the beam at the proximal end, another at the distal end, and additional detectors monitor intermediate points, allowing precise measurement of optical quality at multiple stages of the delivery system.
Solution Approach 2:
The monitoring system adds a dimensional aspect by measuring optical parameters not only in terms of intensity but also in terms of spatial distribution along the delivery system. By placing detectors at multiple positions (proximal, intermediate, distal ends), the system creates a spatial dimension of measurement that provides comprehensive optical quality assessment.
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 enables precise monitoring of optical quality, ensuring efficient laser treatment and safety by detecting any degradation in the optical connection, thereby optimizing treatment outcomes and preventing potential damage to tissues or equipment.
Implementation Method 1
at least one non-polarizing beam splitter; at least one polarizing beam splitter
Implementation Method 2
The beam reflected back from the proximal end portion of the optical element is P-polarized and the beam reflected back from the distal end portion of the optical element is at least partially S-polarized
Implementation Method 3
at least a first detector operatively associated with the at least one non-polarizing beam splitter; and at least a second detector operatively associated with the at least one polarizing beam splitter
Data Source
AI summary
Apparatus is described for determining the optical quality of an optical element, the optical element having proximal and distal end portions. The apparatus also includes at least one non-polarizing beam splitter; at least one polarizing beam splitter; at least a first detector operatively associated with the at least one non-polarizing beam splitter; at least a second detector operatively associated with the at least one polarizing beam splitter. The apparatus includes a mechanism to transmit at least one beam of coherent light energy through the at least one non-polarizing beam splitter and through the at least one polarizing beam splitter, the beam being directed to the proximal and distal end portions of the optical element; the beam of coherent light energy that is reflected from the proximal end portion of the optical element is directed back through the at least one polarizing and the at least one non-polarizing beam splitters to the first detector; the beam that is reflected from the distal end portion of the optical element is directed back through the at least one polarized beam splitter to the second detector; and, the energy level detected by the first and the second detectors provides a measure of optical quality of the optical element.