| Usage: | Optical |
|---|---|
| Type: | Flat Lens |
| Transmittance: | >95% |
|
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Round and Rectangular Polished Sapphire Optical Windows for Watch
Description:
Optical window is optical glass with grinding and polished faces that are parallel to each other,windows can be a protection of original when it's in two physical environments.And there is almost no effect on visible light,to coat on the surface of windows could increase the transmittance,the commonly used coatings are antireflection coating (AR) and scratch-resistant coating(AS).Windows with coating can enhance the light penetration strength,and own function of waterproof ,dustproof,and scratch-proof.
Sapphire windows are ideal for vacuum chambers, submarine and other harsh environment applications. We provide sapphire windows and sapphire lenses according to customer's specifications.
Application:
They are mainly used in mobile phone screen, digital camera, digital video recorders, industrial optical windows, touch screen products, GPS products, digital electronic products windows, car rearview mirror, computer screen, laptop screen, watch surface and so on.
We offers all types of windows made from different materials. Special size and materials are also available upon request. In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on optical windows. Oval windows, round windows, square windows, disc, windows with hole are all available here,material could Bk7 glass,fused silica,JGS1,JGS2,B270,float glass,sapphire etc.
The windows is the most popular item here. For example,dia.7.8mm round windows with B270 glass, which is used to protect the camera lens.Month productivity is 500,000 pcs.
Normal specification of windows as follow:
*Material: BK7 or other materials, follow use requirement
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%
Specification
Materials characteristic
|
Refractive index (nd) |
1.768 |
| Coefficient of dispersion (Vd) | 72.2 |
|
Density (g/cm3) |
3.97 |
|
TCE(μm/mºC) |
5.3 |
|
Soften Temperature(ºC) |
2000 |
|
Knoop hardness(kg/mm2) |
2200 |
| Diameter | 0.2-300mm +/-0.1mm or +/-0.02mm or customization |
| Thickness | 0.10-100mm± 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) |
Overseas exhibition
FAQ:
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, TNT, UPS, EMS etc.
(2) If you have your own express account, it's great.If not,we could help you ship them.
Q: How to pay?
A: T/T, Paypal, etc
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 5pcs.
(2) For customized products, the MOQ is 10pcs-25pcs.
Q: What's the delivery time?
A: (1) For the standard products
For inventory: the delivery is 5 workdays after you place the order.
For customized products: the delivery is 2 or 3 weeks after you place the order.
(2) For the special-shaped products, the delivery is 4 or 6 workweeks after you place the order.
Q: Do you have standard products?
A: Our standard products in stock.
Q: Can I customize the products based on my need?
A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs.
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