Reflectance 800 Nm Metal Coated Optical Mirrors BK7 Optical Concave Mirror
Offered Reflectance >96% from 800 nm to 20 µm, High precision Metal Coated Concave Mirrors
optical mirrors are available for use with light in the UV, VIS, and IR spectral regions. Optical mirrors with a metallic coating have high reflectivity over the widest spectral region, whereas mirrors with a broadband dielectric coating have a narrower spectral range of operation; the average reflectivity throughout the specified region is greater than 99%. Hot, cold, backside polished, ultrafast, D-shaped, elliptical, parabolic, concave, crystalline, and laser line dielectric-coated optical mirrors are available for more specialized applications.
▶ For aluminum mirrors without a protective film, (TFAN/TFAQN) handle carefully as they can be easily scratched oxidation builds up in the surface. Do not rub the surface with paper or cloth as this will harm the surface. For long term storage, use a de-oxidizer to prevent the oxidation.
▶ When a laser light is transmitted with multiple mirrors installed there will be a large amount of light loss due to the absorption of the aluminum coating. Please consider using dielectric multi-layer mirrors (TFM) for improved performance.
▶ The reflectance specification are represented by the average of the reflectance of P polarized light and S polarized light. Reflectance may vary depending on the polarization state of the incident beam.
Parameters
Processing capacity
| Material | BK7 or UV Fused Silica |
| Dimension Tolerance | +0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Surface Quality | 60/40 |
| Clear Aperture | >90% |
| Flatness | <λ/4@632.8nm |
| Centration | <3 arc minutes |
| Coating | Metal coating on curved surface,ground or inspection polished on flat surface Enhanced Aluminum: Ravg>90%@400-700nm Protected Aluminum: Ravg>87%@400-1200nm UV Protected Aluminum: Ravg>80%@250-700nm Protected Silver: Ravg>95%@400-12000nm Enhanced Silver: Ravg>98.5%@700-1100nm Protected Gold: Ravg>98%@2000-12000nm |
| Damage Threshold | >1J/cm2, 20ns, 20Hz, @1064nm |
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FAQ
Q: What are your main products?
A: Optical lens,mirrors,windows,filters,prisms
Q: How long is your delivery time?
A: In general delivery time is about one month for custom produced optics.except stock ones or some special optics.
Q: Do you provide samples ? is it free or extra ?
A: We can provide free samples if we have stock optics as your request,while custom produced samples are not free.
Q:What is your MOQ ?
MOQ is 10pcs for most of the optics, while MOQ could be only one piece if you need a element in big dimention.
Q: What is your terms of payment ?
T/T,L/C,VISA,Paypal,Alipay or Negotiation.
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