Sapphire is composed of alumina, and its crystal structure is hexagonal lattice structure.
Synthetic sapphire common application facets are A-Plane,C-Plane, and R-Plane. Due to the wide optical penetration band of sapphire, it has good light transmission from near ultraviolet (190nm) to mid-infrared. Therefore, it is widely used in optical components, infrared devices, high-intensity laser lens materials.
Sapphire also has the characteristics of high sound velocity, high temperature resistance, corrosion resistance, high hardness, high light transmittance, high melting point (2045℃), etc., so it is often used as a material for photoelectric components.
Sapphire Step window Specifications:
Product name | Sapphire Step window |
Material | Sapphire |
Diameter | 1-500 mm |
Diameter Tolerance | ±0.03 mm |
Thickness | 0.1-100 mm |
Thickness Tolerance | ±0.03 mm |
Parallelism | ≤3 ARC Min |
Surface quality | DSP 60/40 or better |
Chamfer | 0.1-0.3mm*45° |
Clear Aperture | 90% |



Our main products:

FAQ:
Q:What is your minimum order requirement?
A:MOQ: 10 pieces
Q:How long will it take to execute my order?
A:10-25 days after confirming the payment.
Q:Can you give warranty of your products?
A:We promise the quality, if the quality has any problems, we will produce new produces or return you money.
Q:Do you provide free samples?
A:We can provide free samples if we have stock optics as your request,but the freight is yours.
Q:What is your terms of payment?
A:T/T, Western Union ,Paypal