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Help Center220nm/254nm/270nm UV Narrow Bandpass Filter Quality Choice
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220nm/254nm/270nm UV Narrow Bandpass Filter
Bandpass filters are designed to isolate a region of the UV,visible,infrared spectrum. This is accomplished using a complex process of constructive and destructive interference.Band pass filters have bandwidths (measured at half-peak transmittance levels) less than 6% of the center of wavelength value.Our bandpass optical filters and narrow bandpass filters are coating on transparent optical glass or colored optical glass.FWHM is full width at half maximum
Technical Specifications:
| Substrate | UV Grade fused silica |
| Dimension | 3mm-50mm round or square |
| Clear Aperture | >90% |
| Center Wavelength | 220+/-2nm 254+/2nm 270+/-2nm |
| Surface Quality |
60/40 |
| Flatness | lambda/4 per 25nm at 632.8nm |
| FWHM | 10+/-2nm |
| Thickness | 0.5-6mm with mount or not |
| Tpeak |
>15% |
| Blocking | OD4@200-1200nm |
| Coating |
metal-dielectric combination, hard oxide coating |
Production line
Why us?
1. Service Time: 24 hours waiting for you.
2.Fast Response:2 hours within our worktime,12 hours get off work.
3. Good Service:We can supply you from design,measure to coating one stop service
4.MOQ: No MOQ requirement, you can sent your order at any time
5. After-sales Service:If bad quality,we will refund.
How to Order?
Step 1. Send the inquiry at the bottom of the product.
Step 2. We will response or quote you within 24 hours.
Step 3.Place order through email,Skype,MSN,QQ directly.
Looking forward to doing bussiness with you in near future!!!
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