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Help Center650nm Narrow Band Pass Filter for Barcode Scanner Measurement Alignment
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650nm Narrow Band Pass Filter for Barcode Scanner Measurement Alignment
650nm Narrow Bandpass filters transmit light only within a defined spectral band ranging from less than one to many nanometers wide.It's preferable to monochromators because of their higher transmission and better signal-to-noise, transmittance up to 90%, and the optical signal attenuation rate is small, effectively improve the working distance and light intensity,standard or customized features with different functions for the specifications
which the image sensor only requires a small bandwidth of the 940nm NIR light to for the black and white image.
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Technical Specifications:
| Substrate | vary customized, such as B270, BK7, crystal, float or sodalime glass etc |
| Dimension | customized, from 2x2mm to Dia. 110mm, +/-0.1mm |
| Clear Aperture | >90% |
| Center Wavelength | 650+/-2nm,650nm+/-5nm,650nm+/-15nm,650nm+/-30nm |
| Surface Quality | 60/40 |
| Flatness | lambda/4 per 25nm at 632.8nm |
| FWHM | 6nm, 10nm, 20nm, 30nm, 40nm, 60nm |
| Thickness | 0.3-3mm |
| Transmission | >85%@650nm |
| Blocking | Tmax<3%@400-600nm &690-1200nm |
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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