Hair Cutting Member Optical Waveguide Assembly Alignment
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Solution Overview
Problem
Existing hair cutting devices that use light to cut hair face challenges in ease of assembly, particularly in aligning the optical waveguide and connecting it to the device body.
Innovation Solution
A hair cutting device configuration that includes a light emitting module with an optical waveguide and a connecting member, such as a ferrule, which simplifies the assembly process by allowing easy alignment and connection of the optical waveguide to the device body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional optical waveguide connection structure is used, then the hair cutting device can function to cut hair, but the assembly process becomes complex and difficult
Solution Approach 1:
The device is divided into separate modules: a light source module, an optical waveguide module, and a handling module. Each module can be assembled and tested independently before final integration, significantly simplifying the overall assembly process and reducing complexity.
Solution Approach 2:
The optical waveguide is pre-aligned and fixed to the light source module before final assembly. The light source module is pre-assembled with the waveguide in a controlled manner, ensuring proper optical alignment is achieved before the module is integrated into the complete device.
2Manufacturing precision
If precise alignment of the optical waveguide core is required, then light can be effectively introduced into the core, but the assembly process becomes time-consuming and complex
Solution Approach 1:
The optical waveguide module is designed with self-aligning features where the core positioning structure automatically guides the waveguide into the correct position relative to the light source. This self-service alignment mechanism eliminates the need for manual precision alignment, achieving both high precision and rapid assembly.
Solution Approach 2:
A positioning structure acts as an intermediary element between the light source module and the optical waveguide. This mediator component provides reference surfaces and mechanical constraints that ensure accurate alignment of the waveguide core with the light source output, simplifying the alignment process while maintaining precision.
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 improved configuration enhances the ease of assembly for the hair cutting member, device body, and the overall hair cutting device, reducing the complexity and time required for assembly.
Implementation Method 1
The fiber optic receives the laser light from the laser light source at the proximal end and conducts the laser light from the proximal end toward the distal end. The fiber optic emits the light out of the cutting region and toward hair when the cutting region is brought in contact with the hair.
Data Source
AI summary
A hair cutting member includes a light emitting module and a connecting member. The light emitting module includes an optical waveguide including a core, and a retaining member retaining the optical waveguide with at least a portion of the core being exposed so as to apply light to hair growing on a skin. The connecting member is integrally joined to the light emitting module with the connecting member retaining an end of the optical waveguide, and positions the core with respect to light introduced into the optical waveguide. The connecting member is mechanically connectable to a connection target. The core is configured so that light is introduced from an end thereof that faces the connection target. The technology of the present disclosure improves ease of assembly of a hair cutting member, a device body of a hair cutting device, and a hair cutting device.


