Active Member
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[China]
Address: 1610, Building 2B, Phase 2, Jindi Longcheng, Longcheng Street, Longgang District, Shenzhen, Guangdong, China
Contact name:Jeff
Shenzhen Tianzhili Crystal Co., Ltd. |
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Circular Plane Non Reflective Sapphire Glass Ground And Beveled Edge Finish
Product Description:
: Dimesion size : 0.2-300mm or customization , thickness >0.1mm
b: Gemstone Type: Synthetic (lab created)
c: AR coating or as your request
d: Product shape : round , rectangle or custom shape
e: Chemical Composition : Al2O3
Sapphire Windows general specifications
| Diameter | 0.2-300mm or customization |
| Diameter tolerance | +/-0.1mm or +/-0.02mm |
| Thickness | 0.10-100mm |
| Thickness tolerance | ± 0.1mm or +/-0.02mm |
| Surface quality (scratch & dig) | 60/40, 40/20 or better |
| Surface accuracy | λ/10, λ/2, λ |
| Clear Aperture | >85%, >90% |
| Parallelism | +/-3' ,+/-30'' |
| Bevel | 0.1~0.3mm×45 degree |
| coating | AR, BBAR or upon customer request( UV, VIS, IR)s |
Please try to offer more details as below when you place an order:
1. Buyer offers an original sample or related mounting parts and special request for attention or change.
2. If you are unable to provide samples, please provide drawings or try to provide more details.
We can provide flat/single domed/double domed and other shape watch glass,Welcome to email us.
Synthetic Sapphire Window Technique Index :
| Property | Specification |
| Thickness | 0.5-50mm |
| Size tolerance | 0.02mm |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Surface Flatness | λ/4 @ 633 nm |
| Parallelism | ≤3 arc min (≤0.9 mrad) |
| Clear Aperture | >80% of central diameter |
| Hardness (Knoop) | 1370 kg mm-2 |
| Young's modulus | 3.4 x 1011 N m-2 |
| Thermal Limit | 22 W m-1 K-1 |
| Thermal expansion coefficient | 8.4 x 10-6 K-1 |
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