Optical Waveguide Laser Detachment for Multiple Absorbing Regions
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Solution Overview
Problem
Existing laser treatment methods are inefficient as they require precise positioning of the laser beam for each object, leading to prolonged detachment times and risk of object deterioration due to improper laser focusing.
Innovation Solution
A laser treatment device with an optical guiding system using surface optical couplers, waveguides, and photonic crystals to simultaneously guide the laser beam to multiple absorbing regions, allowing for simultaneous detachment of objects while controlling coupling coefficients to prevent damage to non-target areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a laser beam is focused onto each absorbing region through the initial support to detach objects, then the objects can be detached from the initial support, but the positioning time for each object increases the total detachment duration
Solution Approach 1:
The patent divides the laser beam into multiple separate beams using a beam splitter, with each beam directed to a different absorbing region. This allows simultaneous detachment of multiple objects rather than sequential processing, directly resolving the contradiction between detachment speed and total duration by enabling parallel operations.
2Manufacturing precision
If the laser beam is positioned precisely for each object detachment, then the detachment accuracy is improved, but the risk of object deterioration increases due to laser exposure
Solution Approach 1:
By segmenting the laser beam into multiple lower-intensity beams that are simultaneously directed to different absorbing regions, the patent achieves precise focusing at each target while distributing the total laser energy. This prevents excessive energy concentration that could cause object deterioration, thus resolving the contradiction between focusing accuracy and object safety.
3Ease of operation
If objects are placed in the line of sight of the laser beam for detachment, then the detachment process is simplified, but the risk of object deterioration increases
Solution Approach 1:
The beam splitter divides the laser beam into multiple paths, allowing objects to be positioned at different locations rather than requiring them to be in the direct line of sight of a single beam. This maintains operational simplicity while eliminating the need for objects to be exposed to concentrated laser energy in their line of sight, thus resolving the contradiction between ease of operation and object protection.
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
Enables rapid and controlled detachment of multiple objects without placing them in the direct line of sight of the laser, reducing the risk of damage and shortening the overall detachment process.
Implementation Method 1
the optical guiding system comprises a surface optical coupler, adapted to capturing the laser
Implementation Method 2
the optical guiding system comprises a first waveguide for the laser and second waveguides for the laser
Implementation Method 3
a photonic crystal between each object and one of the second waveguides
Implementation Method 4
focus a laser beam onto each absorbing layer through the initial support, the ablation of the absorbing layer causing the detaching of the object from the initial support
Implementation Method 5
an absorbing layer between each object and the initial support and to focus a laser beam onto each absorbing layer
Data Source
AI summary
A device configured for a laser treatment, including a support and objects, each attached to the support via a region absorbing for the laser, the support comprising a system for optically guiding (42, 44, 50, 52) the laser towards at least a plurality of said absorbing regions.