Wuhan Siwer Optics Co.,Ltd
| Payment Terms | T/T, Western Union |
| Supply Ability | 2000 pieces/month |
| Delivery Time | 1-3 weeks |
| Packaging Details | 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler |
| Material | H-K9L or other optical glass |
| Size tolerance | +/-0.1mm |
| Surface quality | 40/20 |
| Surface flatness | Lambda/2 in 25.4mm |
| Parallelism | 2 arc min |
| Size | customized |
| Usage | Optical system |
| Brand Name | Wuhan Siwer Optics |
| Place of Origin | Wuhan,China |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | 2000 pieces/month |
| Delivery Time | 1-3 weeks | Packaging Details | 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler |
| Material | H-K9L or other optical glass | Size tolerance | +/-0.1mm |
| Surface quality | 40/20 | Surface flatness | Lambda/2 in 25.4mm |
| Parallelism | 2 arc min | Size | customized |
| Usage | Optical system | Brand Name | Wuhan Siwer Optics |
| Place of Origin | Wuhan,China | ||
| High Light | Biometric Bandpass Filter ，940nm Biometric Bandpass Filter ，Near IR Bandpass Interference Filter | ||
Intelligent Recognition System Face Recognition Near-IR 940nm Bandpass Biometric Filter
NIR image sensors used in conjunction with 940nm illumination are being used to support iris recognition in biometrics. When used as a secondary scanner (simultaneously with a primary, mobile scanning unit), the invisible 940nm band can similarly help improve finger-vein identification protocols. This technology identifies specific individuals using a distinct blood vessel pattern inside one’s hand. Use of a narrow band Bi940 filter can provide insurance in the event of unanticipated changes in ambient/background light.
Product Index
| Center wavelength | 850+/-5nm |
| FWHM | 30+/-5nm |
| Top transmittance | >90% |
| Blocking range | 350-1100nm |
| Angle of incidence | 0deg |
| Surface quality | 60/40 |
| Cut off depth | OD2-OD6 |
| Meterial | BK7,K9,B270,Fused Silica etc |
| Size | Customized |
Transmission Curve
Partial stock filter list
| Item | Size(mm) | Unit price(USD) |
| 850nm Narrow band pass filter | Φ4.2*1.1 | 10 |
| Φ4.5*0.55 | 10 | |
| Φ6*2 | 10 | |
| Φ8*0.55 | 4 | |
| Φ8*1.1 | 4 | |
| Φ10.4*1 | 5 | |
| Φ14*1 | 10 | |
| Φ15*1.1 | 10 | |
| Φ17*0.7 | 14 | |
| Φ20*0.55 | 14 | |
| Φ23*1.1 | 21 | |
| Φ25*0.55 | 14 | |
| Φ27*1.2 | 26 | |
| Φ29*1.7 | 26 | |
| Φ34*1 | 51 | |
| Φ37.5*1.2 | 26 | |
| 4.5*4.5*0.55 | 3 | |
| 6.2*6.2*0.5 | 3 | |
| 7*2*1 | 10 | |
| 8.2*8.2*0.55 | 4 | |
| 8.5*2*1 | 10 | |
| 10*10*0.55 | 5 | |
| 10*7.5*0.55 | 8 | |
| 14*14*1.1 | 8 | |
| 14*7*1.1 | 8 | |
| 16.9*16.9*1 | 21 | |
| 17*17*0.55 | 21 | |
| 17.8*17.8*0.55 | 21 | |
| 15.5*8*1.1 | 21 | |
| 23.5*15.6*1.1 | 21 | |
| 27*20*0.6 | 26 | |
| 30.5*23*0.6 | 26 | |
| 35*2*1 | 21 | |
| 37*8.2*0.55 | 14 | |
| 57*9*1.8 | 21 | |
| 80*14*1 | 51 | |
| 86*86*0.55 | 103 | |
| 8.2*8.2*1 | 7 | |
| 14*14*1 | 14 | |
| Item | Size(mm) | Unit price(USD) |
| 450nm narrow band pass filter | Φ3.5*1 | 14 |
| Φ5*1.5 | 10 | |
| Φ6.5*1.7 | 14 | |
| Φ8*1.1 | 17 | |
| Φ11.5*1.5 | 21 | |
| Φ15*1.5 | 21 | |
| Φ25*1.5 | 21 | |
| Φ30*1.5 | 21 | |
| Φ35*1.4 | 48 | |
| Φ36*1.5 | 48 | |
| Φ39*1.6 | 69 | |
| Φ45*1 | 86 | |
| Φ50*1.8 | 103 | |
| Φ51*1.5 | 103 | |
| 10*5*1.65 | 17 | |
| 14*14*1.1 | 21 | |
| 14*7.5*1.1 | 21 | |
| 14*8.1*1.1 | 21 | |
| 16.5*16.5*1.1 | 21 | |
| 18*18*1.7 | 21 | |
| 19.5*16.8*1.5 | 21 | |
| 30*5*1.1 | 21 | |
| 38*20*1.1 | 34 | |
| 39*23*2.2 | 48 | |
| Item | Size(mm) | Unit price(USD) |
| 625-665nm band pass filter | 4.8*2.6*1 | 10 |
| 6*4.6*1 | 3 | |
| 5*5*1.2 | 10 | |
| 6.5*6.5*1 | 3 | |
| 9*9*1 | 3 | |
| 10*10*1 | 10 | |
| 6*6*1 | 3 | |
| 9*9*1 | 3 | |
| 16*16*1.7 | 14 | |
| 16.5*16.5*1.1 | 21 | |
| 25*14*1.1 | 21 | |
| 30*30*1.7 | 21 | |
| Φ6*1 | 3 | |
| Φ8*1 | 3 | |
| Φ12*1.1 | 12 | |
| Φ16*1.1 | 12 | |
| Φ20*1.1 | 12 | |
| Φ24*1 | 14 | |
| Φ25*1.1 | 14 | |
| Φ26*1.1 | 14 | |
| Φ29*1.2 | 14 | |
| Φ30*1.1 | 14 | |
| Φ39*1.1 | 34 | |
| 600-750nm band pass filter | Φ21.5*2.3mm | 21 |
| Φ27.5*2.3mm | 21 | |
| 600-480nm band pass filter | 7.65*7.65*0.7mm | 14 |
| 420nm-620nm&850nm band pass filter | Φ8*0.55mm | 3 |
| 10*10*0.55mm | 4 | |
| 30*30*1.1mm | 7 | |
| 697nm narrow band pass filter | Φ20*1.75mm | 26 |
| 400-950nm band pass filter | 40*10*1.1mm | 21 |
| 820-1100nm band pass filter | 40*10*1.6mm | 21 |
| 970nm narrow bandpass filter | Φ19*0.7mm | 21 |
| Item | Size(mm) | Unit price(USD) |
| 520nm narrow bandpass filter | Φ14*1.1mm | 21 |
| Φ16.5*1.6mm | 21 | |
| Φ24*1.1mm | 21 | |
| Φ25*1.7mm | 21 | |
| Φ30*1.1mm | 26 | |
| Φ39*1.1mm | 71 | |
| 8*8*1.1mm | 18 | |
| 20*20*1.2mm | 21 | |
| Item | Size(mm) | Unit price(USD) |
| 689-725nm bandpass filter | Φ39*1.8mm | 49 |
| 563nm narrow bandpass filter | 80*20*1mm | 49 |
| 680-760 bandpass filter | Φ29.5*2.2mm | 21 |
| Φ12*1.8mm | 18 | |
| Φ7*2.3mm | 14 | |
| 80*8.5*1.7mm | 26 | |
| Item | Size(mm) | Unit price(USD) |
| 760-850nm bandpass filter | Φ8*1.2mm | 14 |
| 14*14*1.1 | 21 | |
| Item | Size(mm) | Unit price(USD) |
| 940nm narrow bandpass filter | Φ8*0.7mm | 7 |
| Φ10*0.55mm | 14 | |
| Φ12*1.1mm | 14 | |
| Φ15*1mm | 21 | |
| Φ22*1.1mm | 21 | |
| Φ25*1.1mm | 26 | |
| Φ28*1.1mm | 26 | |
| Φ36*1.3mm | 71 | |
| Φ39*1.5mm | 71 | |
| 10*10*0.7mm | 7 | |
| 14*6*0.6mm | 18 | |
| 14*14*0.6mm | 21 | |
| 500-550nm bandpass filter | 4.8*2.6*0.7mm | 7 |
| 6*6*1.1mm | 14 | |
| 8*8*1.65mm | 14 | |
| 11.3*1.6*1.55mm | 14 | |
| 70*20*2.5mm | 35 | |
| Φ20*2mm | 21 | |
| Φ27*1.45mm | 21 | |
| Φ36*2.45mm | 26 | |
| 450-1100nm longpass filter | Φ25*1.1mm | 21 |
| Φ35*1.3mm | 49 | |
| 420-480nm bandpass filter | 6*6*1.7mm | 14 |
| 18*18*1.6mm | 18 | |
| Φ30*1.46mm | 21 | |
| 80*39*2.3mm | 71 | |
| 80*10*1.65mm | 18 | |
| Φ8*1.7mm | 14 | |
| 10*10*2mm | 18 | |
| Φ12.5*1.5mm | 18 | |
| Φ35*1.6mm | 35 |
We can also customize specific filters according to your requirements.
We can also provide the filter holder. Here is the schematic diagram of our standard holder:
Production Line
What's the way of shipping?
We accept DHL, Fedex, TNT, UPS, SF, EMS etc. If you have your own express account, it's great.
How to pay?
(1) T/T, PayPal, West Union,etc
(2) Bank Fee: West Union-USD30.00(≤USD3000.00),
T/T-USD20.00+, PayPal-5%. Please consult the local bank.
What's the deliver time?
For inventory: the delivery time is around 5 workdays.
Customized products: the delivery time is 10 to 30 workdays. According to the quantity and precision.
Can I customize the products based on my need?
Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. OEM is available.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Ecer Certification：
Active Member
Company profile Wuhan Siwer Optics is a professional manufacturer of various optical components.We focuses on production of optical interference filters,infrared and visible optical components. The company has optical optimization design, precision optical processing and optical coating technolo... Company profile Wuhan Siwer Optics is a professional manufacturer of various optical components.We focuses on production of optical interference filters,infrared and visible optical components. The company has optical optimization design, precision optical processing and optical coating technolo...
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