Product Descriptions:
| Characteristics: | Sapphire Crystal |
| Chemical composition : | Aluminum oxide （Al₂O₃） |
| Transmittance: | >85% @410-785nm |
| Mohs hardnes : | ≥9 |
| Surface roughness: | 60-40 |
| Shape: | Octagon design |
| Polishing: | Double side or customized |
What is an Optical Sapphire?
Optical sapphire is not a natural gemstone; instead, it is a pure, single-crystal form of aluminum oxide (Al₂O₃) that is synthesized through artificial methods.
- It has the same composition as natural sapphire, but due to its extremely high purity, it possesses unparalleled comprehensive properties.
- Its most notable feature is its extremely high hardness, with a Mohs hardness of 9, only slightly lower than that of diamond. This means it is extremely scratch-resistant and cannot be damaged by daily dust and sand.
- At the same time, it has excellent optical properties, with a wide light transmission range, from ultraviolet to infrared, all with high light transmittance, ensuring clear and true imaging.
- In addition, it also has the advantages of high mechanical strength, good thermal stability and stable chemical properties.
What is an Typical application for Optical Sapphire?
Due to its extremely excellent optical and physical properties, optics is widely applied in high-end watch lenses, smartphone camera covers and screens, industrial optical windows, medical equipment and other high-tech fields.
