AR Glasses
| Material | Magnesium alloy | Aluminum alloy | Plastic | Magnesium-lithium alloy | |||||
| Grade | AZ91 | AZ31 | MB15 | 5052-O | Dow Pulse 2000 | LZ91 | LA141 | QY-1（as-cast） | QY-2（T5） |
| Density (g/cm³) | 1.81 | 1.77 | 1.83 | 2.68 | 1.13 | 1.48 | 1.35 | 1.55 | 1.55 |
| Tensile Strength (MPa) | 240 | 280 | 335 | 245 | 55 | 180 | 160 | 278 | 349 |
| Specific Strength (m) | 132.59 | 158.19 | 183.06 | 91.42 | 48.67 | 121.62 | 118.51 | 198.7 | 231.1 |
| Elastic Modulus (GPa) | 45 | 45 | 45 | 70 | 23 | 45 | 43 | 45 | 45 |
| Specific Modulus (m) | 24.86 | 25.42 | 24.59 | 26.12 | 20.35 | 30.4 | 31.85 | 29.03 | 29.8 |
| Elongation (%) | 3 | 15 | 20 | 12 | 5 | 40 | 40 | 5 | 7 |
The Key to Breaking the Dilemma of AR Glasses
Regarding battery life
Magnesium-lithium alloys are inherently low-density and lightweight, making them ideal for crafting components like frames or brackets of AI glasses—parts that significantly reduce the overall weight of the device. Lighter weight not only enhances comfort but also leads to relatively lower power consumption for the same battery capacity, indirectly boosting the device’s battery life. For instance, Raybird utilizes an aerospace-grade magnesium-aluminum alloy frame that maintains structural strength while cutting down on weight, paving the way for integrating more high-performance components and extending the device’s
In terms of weight
As the lightest metallic structural material, magnesium-lithium alloy boasts even more remarkable advantages. Currently, magnesium-lithium alloy is the world’s lightest metal-based structural material, offering exceptional specific strength and specific modulus—qualities that ensure its strength and rigidity meet design requirements. For instance, the PC magnesium alloy frame of the INMO GO2 leverages the alloy’s lightweight properties, allowing wearers to enjoy extended periods of use without experiencing significant discomfort or strain, thereby enhancing overall wearing comfort.
In terms of computing power
Magnesium-lithium alloys boast excellent thermal and electrical conductivity, ensuring that AI glasses can efficiently dissipate heat generated during complex computations and data processing. This prevents overheating, which could otherwise lead to performance degradation or device failures, thereby maintaining stable computational power. Additionally, their strong electromagnetic shielding capabilities further safeguard the stable operation of internal electronic components, minimizing external electromagnetic interference and protecting the system's computing efficiency.
Electromagnetic shielding performance
Magnesium-lithium alloys exhibit excellent shielding properties against electromagnetic waves across various frequency bands, enhancing both the safety and accuracy of devices.
Shock absorption and noise reduction
Magnesium-lithium alloys feature a high internal friction coefficient, allowing them to dissipate energy internally—effectively reducing vibrations and enhancing the stability of equipment, while also contributing to noise reduction.
Good formability
Magnesium-lithium alloys can be processed using a variety of techniques, including stamping, die casting, and CNC machining, along with an extensive range of surface treatments, allowing them to meet designers' and consumers' exacting demands for both texture and color.
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