Skincare Device Kinematic and Optical Sensing for Customized Treatment
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Solution Overview
Problem
Current skincare devices lack the ability to customize and optimize skin treatment based on real-time kinematic data and user-applied forces, leading to inefficient and potentially uncomfortable treatments.
Innovation Solution
A personal skincare device equipped with a motor assembly for oscillating a brushhead, an inertial measuring unit for kinematic measurements, and optical encoders for tracking movement and detecting fiducial markers on the brushhead, allowing for real-time adjustments in oscillation frequency and amplitude based on skin conditions and user force applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a skincare device uses fixed oscillation parameters, then the device structure is simple, but the treatment cannot be customized to different skin conditions
Solution Approach 1:
The patent implements dynamic adjustment of oscillation parameters (frequency and amplitude) based on real-time sensor feedback. The motor assembly can vary its oscillation characteristics during operation to match different skin conditions, transforming a static system into a dynamic adaptive one that responds to user-specific needs
Solution Approach 2:
The patent employs sensors to detect user-applied forces, device articulation, and brushhead position, feeding this information back to the control system. This feedback loop enables the device to automatically adjust oscillation parameters based on actual usage conditions, achieving customization without requiring complex manual controls
2Productivity
If the device oscillates at high frequency, then treatment efficacy is improved, but user comfort may be reduced
Solution Approach 1:
The motor assembly dynamically adjusts oscillation frequency and amplitude in real-time based on sensor feedback. When the device detects higher user-applied forces or specific skin conditions, it can reduce oscillation intensity to prevent discomfort, while maintaining high frequency when appropriate for treatment efficacy
Solution Approach 2:
The system changes oscillation parameters (frequency and amplitude) as variable controls rather than fixed values. This allows the device to optimize the balance between treatment effectiveness and user comfort by adjusting parameters based on real-time detection of skin conditions and user response
3Measurement precision
If the device lacks sensors for detecting user force and position, then the device is simpler, but it cannot accurately determine brushhead location or optimize treatment
Solution Approach 1:
The patent employs a multi-functional sensor system where the same sensors serve multiple purposes: detecting user-applied forces, determining device articulation, tracking brushhead position, and identifying skin conditions. This universal approach achieves high measurement precision without proportionally increasing device complexity
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 device provides targeted and customized skin treatments by accurately detecting skin conditions and adjusting parameters such as oscillation frequency and amplitude, enhancing treatment efficacy and user comfort.
Implementation Method 1
a first optical encoder configured to detect the marking and determine an identity of the brushhead
Implementation Method 2
an inertial measuring unit (IMU) configured to determine kinematic measurements of the device
Data Source
AI summary
A skincare device includes a brushhead; a body including a motor assembly configured to oscillate the brushhead and an inertial measuring unit (IMU) configured to determine kinematic measurements of the device; a first optical encoder including a light source and an optical sensor configured to capture images; and processing circuitry configured to determine a location of the brushhead with respect to a body part of the user based on a combination of data measured from the IMU and the first optical encoder.