Optical Narrow Bandpass Filter Bk7/K9/Quartz/Sapphire
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Product Highlights
- Customized Shape: Shape is fully customized to meet specific application requirements.
- Wide Material Options: Available in N-BK7, H-K9L, Sapphire, Fused Silica, CaF2, ZnSe, Si, and Ge.
- High Transmission Rate: Transmission ranges from 60% to 99% depending on the specific wavelength.
- Long Service Life: Designed for durability with a service life exceeding 5 years under general conditions.
- Excellent Heat Resistance: Features hard, firm coating film with superior heat and moisture resistance.
- Precise Wavelength Positioning: Ensures high accuracy for medical, thermal imaging, and detection instruments.
- RoHS and CE Certified: Meets international safety and environmental standards for global markets.
- Flexible Diameter Range: Diameter options span from 2mm up to 200mm or custom sizes.
Product Attributes
- Customization
- Available
- Usage
- Medical, Thermal Image
- Thickness Range
- 1mm-2mm
- Model NO.
- STF56
- Color
- Blue
- Type
- Interference Filter
- Principle
- Selective Absorption Filter
- Material
- Glass
- Angle of incidence
- 0°
- Shape
- Customized
- Certification
- RoHS, CE
- Customized
- Customized
- Surface Quality
- 60-40
- Flatness
- 1/4 Lambda
- Tolerance
- +/-0.05mm
- Fwhm
- 3-50nm
- Transport Package
- 100PCS Per Box
- Specification
- 3-200mm
- Trademark
- Sunday Optics
- Origin
- China, Changchun
- HS Code
- 9001909090
- Production Capacity
- 50000PCS Per Month
Product Images of Optical Narrow Bandpass Filter Bk7/K9/Quartz/Sapphire
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Product Description
The narrowband filters are mainly used in the applications of medical biochemical instrument, ELIASA, pesticide residue detection,
water quality analysis system and variety of detecting instruments.

Features
High wavelength positioning accuracy
Hard and firm coating film
Good heat resistance and moisture resistance
Long service life(over 5 years under general condition)
Modules or Types
| CWL(nm) | FWHM(nm) | Tmax(%) | Blocking Wavelength Range | Blocking | Size |
| 295 | 12+/-2nm | T≥20% | 200-2000nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 420 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 465 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 510 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 525 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 562 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 589 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 605 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 620 | 8+/-2nm | T≥45% | 200-1100nm | OD6 | φ10 φ12 φ15 |
| 625 | 8+/-2nm | T≥45% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 80mm |
| 665 | 8+/-2nm | T≥45% | 200-2000nm | OD6 | |
| 730 | 10+/-2nm | T≥80% | 200-1100nm | OD5(0.001%) | φ10 φ12 φ15 up to 50mm |
| 870 | 30+/-2nm | T≥85% | 200-1200nm | OD5 | φ10 φ12 |
| 900 | 25+/-2nm | T≥85% | 200-1200nm | OD5 | φ30 |
| 915 | 30+/-2nm | T≥85% | 200-1200nm | OD5 | φ10 φ12 |
| 920 | 20+/-2nm | T≥20% | 200-1200nm | T<10-4 | φ30 |
Manufacture Specifications
| Diameter | 2mm to 200mm |
| Diameter Tolerance | +0.00/-0.1 or customer size |
| Material | N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc. |
| Surface Quality | 80-50 to 10/5 |
| Flatness | 1/4 lambda |
| Thickness Tolerance | +0.00/-0.05mm |
| Standard wavelength | 270nm,311,360,380,473,532,650,780,808,850,904,940,1064 and 1900nm. |
| FWHM | 5nm to 50nm |
| Transmission | 60% to 99% |
| Average blocking | OD6 |
Sample Curves-540nm
Our Factory
Testing
Exhibition Show
Sunday Optics attended Laser World in Laser World in Munich,Frankfult Exhibition,SPIE every year.
Related Production Line
sunday optics also manufacture high precison Lens,prism, powell lens, collimator lens, glass filter, and mirror.
FAQ:
1. Are you manufacturure? can we see your factory?
Yes.
2. Do you have test report?
Yes, we offer full size test report, about size, focal length, flatness, coating curve, coating plate.
3.What is your production quantity everymonth?
It depands on the lens size and precison.
4.What is the Minimum quantity?
1pc
5.What is your delivery time?
samples: 10-20days
6.How should we do if the quality is not good?
Repair or return money.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI209817". Items marked "" are certified.
Company Profile
Changchun Sunday Optics Co., Ltd, was founded in 2010, located in optical base Changchun city. With branches in Changchun, Jiangsu, Nanjing, Sunday Optics mainly produces spherical lens, aspheric lens, prisms, high precision window, filter, coating, laser lens, optical design and optical assembly. The minimum size of the lens can be 0.1mm, and the tolerance of prism's 90-degree angle can be 2 ' '
PROCESS
Equipment: Sunday Optics owns milling and grinding machine, polishing machine, ring throwing, glue machine, coating equipment. These equipments make complete production process of cutting, grinding, polishing, coating and glue.
Annual output: With multiple branches, our annual processing capacity up to 1 million pieces, which can achieve sample order and mass production.
Technical support: Relying on the technology of changchun institutr of optics, we can complete the processing of parts with high difficulty and provide optical design, assembly and other services.
TESTING
We have zygo interferometer, focometer, goniometer, spectrophotometer, microscope, profilometer and other high-end equipment to ensure the quality of products.
Main materials: Optical glass, infrared materials, BK7 FK61 CaF2 Silicon Germanium, etc.
Coating film: In addition to providing high-quality parts, we can also offer most kinds of coating, optical films equipped with crystal film thickness controller 360C and ion source to ensure the coating precision and quality.
WHY COOPERATE WITH US?
Since the establishment of the ministry of foreign trade, we have attended LASER World of Photonics in Germany, Optatec in Frankfurt, SPIE in San Francisco. We are honest and reliable, our products have quality guaranteed. We provide well after-sales service if there is any question with our products to achieve customer's satisfaction.
About Our Factory & Business Background
- Address
- 3#, Liando U Valley, No. 946 Chaoyue Street, High Tech Zone, Changchun, Jilin, China
- Terms of Payment
- LC, T/T, PayPal, Western Union, Small-amount payment, Money Gram
- International Commercial Terms(Incoterms)
- FOB, CIF, DDP, CIP
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- beijing, shanghai, shenzhen
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2013-05-09
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Are you a manufacturer and can we see your factory?
- Yes, we are a manufacturer and welcome factory visits.
- Do you provide test reports?
- Yes, we offer full-size test reports covering size, focal length, flatness, coating curves, and coating plates.
- What is your monthly production quantity?
- Production quantity depends on the lens size and precision requirements.
- What is the minimum order quantity?
- The minimum order quantity is 1 piece.
- What is the delivery time for samples?
- Sample delivery time is 10 to 20 days.
- What should we do if the quality is not good?
- We offer repair services or a full money return.
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