Product Details
Place of Origin: china
Brand Name: zmkj
Model Number: step-lens 201026W21
Payment & Shipping Terms
Minimum Order Quantity: 10pcs
Price: by drawing and quantity
Packaging Details: PET Films
Delivery Time: 20DAYS
Materials: |
99.999％ Al2O3 |
Application: |
Semicondutor Wafer, Led Chip, Optical Glass Window, Electronic Ceramics，bearing |
Advantagement: |
High Hardness9.0，wear Resistance, |
VisVisible Light TransmittanceVisible Light Transmittance: |
85％ |
Color: |
Red And White |
Type: |
Single Crystal |
Materials: |
99.999％ Al2O3 |
Application: |
Semicondutor Wafer, Led Chip, Optical Glass Window, Electronic Ceramics，bearing |
Advantagement: |
High Hardness9.0，wear Resistance, |
VisVisible Light TransmittanceVisible Light Transmittance: |
85％ |
Color: |
Red And White |
Type: |
Single Crystal |
sapphire optical Al2O3 single crystal glass steps lens
Sapphire characteristics
| Materials characteristics |
| Item | B270 | CaF2 | Ge | MgF2 | N-BK7 | Sapphire | Si | UV Fused Sillca | ZnSe | ZnS |
| Refractive index(nd) | 1.523 | 1.434 | 1.003 | 1.413 | 1.517 | 1.768 | 3.422 | 1.458 | 2.403 | 2.631 |
| Coeffcient of dispersion(Vd) | 58.5 | 95.1 | N/A | 106.2 | 64.2 | 72.2 | N/A | 67.7 | N/A | N/A |
| Density(g/cm3) | 2.55 | 3.18 | 5.33 | 3.18 | 2.46 | 3.97 | 2.33 | 2.20 | 5.27 | 5.27 |
| TCE(μm/m℃) | 8.2 | 18.85 | 6.1 | 13.7 | 7.1 | 5.3 | 2.55 | 0.55 | 7.1 | 7.6 |
| Soften Temperature(℃) | 533 | 800 | 936 | 1255 | 557 | 2000 | 1500 | 1000 | 250 | 1525 |
| Knoop hardness(kg/mm2) | 542 | 158.3 | 780 | 415 | 610 | 2200 | 1150 | 500 | 120 | 120 |
1. Feature of our Optical synthetic Sapphire crystal
OEM Size and Design, any shape is ok;
Widely used for optical window, lens, military, etc; The material is synthetic sapphire(hardness 9H)
High Crystal Purity:> 99.995%;
Crystal orientation: Provide A plane, R plane, C plane, M plane and other random planes for sapphire crystal product.
Directional accuracy: ±0.05°We can always provide high-quality service, we will respond to the customer's requirements in a short time.
In addition to optical sapphire glass, we can also make other materials of the optical window, sapphire wafer.
We specialize in the following synthetic sapphire crystal products:
Precision Optics — Micro & Macro Sapphire Windows, Wafers & Flat Products, Tubes, Rods, Spheres & Special Shapes.Our synthetic sapphire growth methods are chosen according to the appropriate application.
Sapphire plasma tubes for semiconductors
Sapphire scanner windows
Sapphire display windows
LED Semiconductors
2. Advancement On sapphire Crystal compare with other glass
1) High temperature resistant, Sapphire Round / Rectangular Optical Window can work
under 1200°C continuously, and in short time can even work under 1450°C,
its softening temperature is 1650°C, and the melting temperature is 1750-1800°C.
2) Corrosion-resistant, Except hydrofluoric acid, Quartz Plate Of Optical Grade
do not react with any acid and base except hydrofluoric acid. the stability is
30 times of the ceramic, and 150 times of stainless steel.
3) Excellent thermal shock stability
4) High transmission to 85%
5) Electric insulation, it is 10000 times of usual glass
3. General Specifications
Diameter: 0.2-300mm
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)
About Our Company ZMKJ Sapphire Process
3.0 Sapphire Tube sample in detail
4.We can supply professional customized service in time and provide cooperation and support of new product development and technology appliance by other semiconducting material products.
