Personalized Lip Applicator via 3D Scan Modeling
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Solution Overview
Problem
Existing methods for manufacturing personalized lip applicators struggle to achieve precise conformity to the three-dimensional morphology of individual lips, due to imperfections in 2D and 3D imaging techniques, which result in unreliable dimensions for custom applicators.
Innovation Solution
A method involving the capture of both 2D and 3D images of the lips, with dimensional reference frames, followed by the generation of a personalized applicator or mold through machining or additive manufacturing, ensuring improved precision and conformity to the lips' shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a standard applicator with predetermined mouth shape is used, then the application process is simple and fast, but the applicator does not conform to the three-dimensional morphology of individual lips, leaving regions uncovered
Solution Approach 1:
The patent performs a 3D scan of the user's lips in advance to capture the precise three-dimensional morphology. This preliminary action creates a digital model that is used to manufacture a custom applicator specifically tailored to the user's lip shape, ensuring perfect conformity while maintaining quick application through pre-preparation
Solution Approach 2:
The patent creates an applicator with non-uniform, location-specific geometry that matches the local characteristics of the user's lips. The applicator's surface is customized to conform to specific three-dimensional features such as the cupid's bow, lip corners, and varying thickness areas, providing targeted coverage where needed
2Manufacturing precision
If a countermold applicator is used to adapt to individual lip morphology, then the conformity to lip shape is improved, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The patent replaces the complex mechanical countermold manufacturing process with a digital 3D scanning and computational modeling system. The 3D scanner captures lip morphology, software processes the data to create a digital model, and this model directly guides additive manufacturing or CNC machining, eliminating the need for physical countermolds and reducing manufacturing complexity
Solution Approach 2:
The patent transforms the manufacturing approach by changing from mechanical mold-making parameters to digital parameters. The 3D scan data provides precise geometric parameters that are processed through algorithms to generate toolpaths or 3D printing files, allowing for rapid customization without complex mechanical processes
3Productivity
If a countermold applicator with product delivery through holes is used, then the application cleanliness and speed are improved, but the applicator still does not conform sufficiently to the three-dimensional morphology of the lips
Solution Approach 1:
The patent creates an exact digital copy of the user's lip three-dimensional morphology through 3D scanning. This digital replica serves as the basis for manufacturing an applicator that perfectly mirrors the user's lip shape, ensuring complete conformity. The applicator is essentially a customized copy tailored to the individual's anatomy
Solution Approach 2:
The patent transitions from two-dimensional or simplified three-dimensional mold approaches to full three-dimensional digital modeling and manufacturing. The 3D scan captures depth, curvature, and surface topology in all dimensions, enabling the creation of an applicator that conforms to the complex three-dimensional morphology of the lips
Data Source
AI summary
The invention relates to a method for manufacturing a personalized applicator for applying a cosmetic composition to the lips, this applicator comprising an application surface made of a material that may become laden with composition, the method comprising the following steps: (iv) Capturing an input 2D image provided with a first dimensional reference frame, (v) Capturing an input 3D image provided with a second dimensional reference frame.