AR Glasses Leg Integrally Formed Shell with Skin-Friendly Coating

Solution Overview

Problem

Existing AR glasses legs have splicing seams that compromise waterproofing and aesthetics, and their metal surfaces cause discomfort due to high thermal conductivity.

Innovation Solution

The AR glasses leg features an integrally formed main body with a skin-friendly layer on the inner side and a decorative layer on the outer side, along with a magnesium-lithium alloy material for reduced weight and improved touch experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a splicing design of two shells is used, then the manufacturing process is simplified, but obvious splicing seams appear on the surface reducing appearance consistency and waterproofing

Engineering Contradiction:

Improvemanufacturing processVSAvoidappearance consistency

Core Design Contradiction:

Ease of manufactureVSShape

Solution Approach 1:

The patent merges the inner side portion and outer side portion into a single integrally formed shell structure, eliminating the splicing seams that occur with separate shell assembly. This integration maintains appearance consistency while still allowing for functional differentiation between inner and outer surfaces through selective coating application.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If a splicing design of two shells is used, then the manufacturing process is simplified, but waterproofing becomes significantly more difficult

Engineering Contradiction:

Improvemanufacturing processVSAvoidwaterproofing

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent merges the inner side portion and outer side portion into a single integrally formed shell structure, eliminating the splicing seams that occur with separate shell assembly. This integration maintains appearance consistency while still allowing for functional differentiation between inner and outer surfaces through selective coating application.

Inventive Principle:

Principle #5Merging (Combining)

3Strength

If conventional metal surface treatment is used, then the structural integrity is maintained, but the user feels cool discomfort due to high thermal conductivity

Engineering Contradiction:

Improvestructural integrityVSAvoidthermal discomfort

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent applies different surface treatments to different portions of the shell: the outer side portion receives conventional metal surface treatment for structural integrity and aesthetics, while the inner side portion receives a skin-friendly low thermal conductivity coating to reduce thermal discomfort during user contact.

Inventive Principle:

Principle #3Local quality

4Adaptability or versatility

If the contact area of the product increases, then the functional capabilities are enhanced, but the low temperature touch phenomenon becomes more serious

Engineering Contradiction:

Improvefunctional capabilitiesVSAvoidtouch temperature

Core Design Contradiction:

Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent applies different surface treatments to different portions of the shell: the outer side portion receives conventional metal surface treatment for structural integrity and aesthetics, while the inner side portion receives a skin-friendly low thermal conductivity coating to reduce thermal discomfort during user contact.

Inventive Principle:

Principle #3Local quality

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

This design achieves a seamless, waterproof, and aesthetically pleasing AR glasses leg with improved thermal comfort and reduced weight, enhancing the overall user experience.

Implementation Method 1

a skin-friendly layer provided at a surface of the inner side portion

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

the decorative layer is plated by electroplating or magnetron sputtering

Methodology Applied

Scientific EffectElectroplating: Electroplating

Implementation Method 3

the decorative layer is plated by electroplating or magnetron sputtering

Methodology Applied

Scientific EffectMagnetron sputtering: Sputtering

Data Source

PatentUS20250199338A1Augmented reality glasses leg, preparation method thereof and augmented reality device

Publication Date: 2025.06.19 GEER TECH CO LTD

AI summary

Disclosed are an AR glasses leg, a preparation method thereof and an AR device. The AR glasses leg includes a main body, a decorative layer and a skin-friendly layer; the main body includes an inner side portion and an outer side portion; the outer side portion and the inner side portion are butt-jointed in the radial direction of the main body and are enclosed to form a cavity with at least one end open; the inner side portion and the outer side portion are of an integrally-formed structure; the decorative layer is provided at the surface of the outer side portion, and the skin-friendly layer is provided at the surface of the inner side portion.