Laser Irradiation Device with Microlens Array for Skin Treatment
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Solution Overview
Problem
Conventional laser treatment devices face challenges in quickly and effectively treating skin conditions due to limitations in forming multiple laser spots simultaneously, uneven laser intensity, and the presence of 'laser blind spots' that cannot be irradiated, leading to long treatment times and reduced efficacy.
Innovation Solution
A laser irradiation device with a handpiece and controller that allows for precise adjustment of laser beam shape, intensity, and distribution, using a scanner with a mirror drive and imaging module to set a guide shape for targeted laser delivery, ensuring even coverage and minimizing side effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a laser scanner device is used to form multiple laser spots, then the device can perform laser treatment on multiple zones, but the treatment time increases because spots are formed with a time difference rather than simultaneously
Solution Approach 1:
The patent segments the laser beam into multiple independent spots using a microlens array, allowing simultaneous formation of hundreds to thousands of treatment zones. Each microlens in the array creates an independent focal spot, enabling parallel treatment rather than sequential scanning.
Solution Approach 2:
The patent replaces the mechanical laser scanner system with an optical microlens array system. Instead of mechanically moving a single laser beam across the treatment area, the system uses optical elements to simultaneously generate multiple beams, eliminating mechanical limitations and achieving faster parallel treatment.
2Productivity
If a microlens array is used to form multiple laser spots, then multiple beams can be emitted simultaneously, but adjusting the spot size and laser intensity becomes difficult and uniform intensity across all spots cannot be achieved
Solution Approach 1:
The patent introduces dynamic control capabilities by making the microlens array adjustable. The system can dynamically change the focal length, position, and configuration of microlenses to precisely control spot size and intensity distribution. This dynamic adjustment allows real-time optimization of treatment parameters for different skin conditions and areas.
Solution Approach 2:
The patent employs parameter changes by allowing variation in microlens array characteristics such as focal length, lens spacing, and curvature. By changing these optical parameters, the system can precisely control the size, shape, and intensity of each laser spot while maintaining uniform distribution across the treatment area.
3Measurement precision
If a conventional lens is used to emit laser light, then light can be focused to a point, but laser blind spots remain on the skin that cannot be irradiated due to refraction issues
Solution Approach 1:
The patent transitions from point-focused laser delivery to area-based simultaneous irradiation using a microlens array. By distributing multiple focal points across a two-dimensional array, the system eliminates blind spots through overlapping coverage zones and angular diversity, ensuring complete skin surface treatment without refraction-related gaps.
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 efficient and precise laser treatment by accurately delivering beams to specific skin areas, reducing treatment time and side effects, and eliminating 'laser blind spots, thereby improving treatment outcomes.
Implementation Method 1
a scanner that is disposed inside the handpiece, includes at least one mirror, and determines a location where the laser beam is emitted on the basis of the preset guide shape
Data Source
AI summary
Proposed is a laser irradiation device for medical treatment for irradiating a laser treatment target with a laser beam. The device includes a handpiece configured to irradiate the laser treatment target with a laser beam in a preset guide shape, and a controller configured to set, on the basis of data on the laser treatment target, a guide shape for emitting a laser beam and generate a control message to control an operation of the handpiece on the basis of the guide shape.