Sapphire lens

Original
price: Negotiable
minimum:
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-21 11:05
Browse the number: 134
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Product details
Sapphire has the characteristic of high hardness with Mohs hardness 9. With high transmittance, excellent mechanical strength and heat resistance, it can take aerodynamic velocity pressure and heat load, thus is widely used as ultraviolet, visible and infrared windows; also it can be used as the luxury watch cover.
Specifications
Orientation: C, A, M optional
Orientation deviation: < 2º
Diameter: Dia5 - Dia 250mm
Diameter tolerance: +0 /- 0.02mm
Radius of curvature: R10 - ∞ mm
Centration: <= 2’
Surface Quality: 40 – 20
Surface accuracy N: <= 2
Irregularity △N: <= 0.5
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