BP280-10 Bandpass Filter(CWL=280nm,FWHM=10nm)
BP280-10 Bandpass Filter(CWL=280nm,FWHM=10nm)
PartNumber:SO3010064
In Stock.
Ships within 5 working days of order.
Holiday notice: Orders placed Feb 10–25 may ship later than usual. Free shipping applies during this period.
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- Wavelength: Center wavelength 280nm with 10nm FWHM bandwidth for narrow-band UV-C spectrum transmission
- Spectral Features: Ultra-narrow bandwidth with steep edge transitions for precise UV-C spectral isolation
- Optical Density: OD3+ blocking outside passband for strong background suppression
- Filter Dimension Availability: Available in standard round and square formats to fit common optical mounts
Request Raw Data
Request Raw Data
You can request the raw transmission data from us.
Copy the link of the product page and send email to shop@syronoptics.com, you will get reply within 1 working days.
Shipment & Delivery
Shipment & Delivery
- Stocked products ship within 5 business days after order confirmation.
- Custom-made products typically ship within 4–8 weeks.
- Delivery times may be affected by holidays, customs clearance, or other unforeseen events.
- Tracking information becomes available 3–5 days after dispatch when the parcel is handed to the local courier.
- Some deliveries may require customer pickup. Please ensure your contact information is correct and respond promptly to courier communications.
- General international parcel shipping cost: USD 35 (for reference).
Return & Refund
Return & Refund
1. Eligible Products
Stocked (catalog) products with a unit price under USD 500 are eligible for return within 14 days after delivery.
Custom-made or non-stock items are not eligible for no-reason returns.
2. No-Reason Return (Buyer’s Remorse)
If you wish to return an item for reasons other than product defect or seller error:
- Please email shop@syronoptics.com to request a return authorization and return address.
- Buyer is responsible for all return shipping costs.
- Items must be unused, in original condition, and with original packaging.
- Refund will be issued after inspection of the returned item.
3. Seller’s Fault (Defective / Wrong / Damaged Item)
If the return is due to seller error (defective product, wrong item shipped, or damage during shipping):
Please provide clear evidence (photos or videos) showing the issue.
We will evaluate the case and either:
- Provide a replacement, or
Issue a refund (with or without requiring the item to be returned). - Return shipping cost will be covered by the seller in confirmed seller-fault cases.
4. Important Notes
- Returned items are subject to inspection before refund approval.
- Shipping fees, customs duties, and taxes are non-refundable unless the return is due to seller fault.
- Unauthorized returns will not be accepted.
Custom Sizing
Custom Sizing
Custom sizing is available from 3 × 3 mm (or Ø5 mm) up to 60 × 60 mm. For custom cut sizes, please contact shop@syronoptics.com for a quotation.
Pricing is not significantly lower for small-size orders in low quantities due to operational costs.
Payment Terms
Payment Terms
Payments can be made online using Credit Card, Apple Pay, Google Pay, WeChat Pay, and Alipay.
If you prefer to pay by bank transfer, please contact shop@syronoptics.com to request an invoice with our banking details.
If you require deferred payment terms, you may request NET 7 or NET 30 at the time of placing your order.
All requests for deferred payment are subject to approval and will be confirmed by SyronOptics via email.
| Part Number | |
|---|---|
PN |
SO3010064
|
| Optical Specification | |
Center Wavelength |
280nm
|
FWHM |
10nm
|
Optical Density |
OD3@200-700nm
|
Curve Transmission Curve from last batch production.
(Performance may vary from batch to batch)
(Zero Value is not shown in the graph)
(Regular Testing Region from 200-1200nm)
|
|
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BP280-10 Bandpass Filter - Protein & Amino Acid Analysis
Protein & Amino Acid Analysis
- Context: Amino acids such as Tryptophan and Tyrosine have peak absorption and excitation near 280nm.
- Usage: The filter is used to isolate the excitation wavelength in fluorometers or to filter the source light in absorption spectroscopy.
- Goal: To quantify protein concentration or detect native fluorescence (which typically emits at ~350nm when excited at 280nm).
Recommended Light Sources
- UV-C LEDs (275nm or 280nm): These offer a direct spectral match to your filter, providing high efficiency with minimal heat and no need for warm-up time, ideal for portable fluorometers.
- Deuterium Lamp: This is the industry standard for UV spectroscopy (190–400nm), offering the highest stability and continuous output in the deep UV range where tungsten/halogen sources fail.
- Xenon Flash Lamp: These provide high-peak-power pulses across the spectrum, which maximizes the signal intensity for fluorescence measurements when detecting low concentrations of protein.
- Laser-Driven Light Source (LDLS): Provides extremely high brightness and a broad spectrum (170nm–2100nm), allowing for high-throughput screening and measuring very small sample volumes (micro-volumes).
-
BP280-10 Bandpass Filter - UV-C Sterilization Monitoring
UV-C Sterilization Monitoring
- Context: 280nm is within the germicidal UV-C range (200–280nm) used to deactivate DNA/RNA in bacteria and viruses.
- Usage: Used in radiometers or sensors to monitor the output of UV sterilization systems.
- Goal: To ensure that UV-C LEDs or lamps are emitting the correct wavelength and intensity to be effective for disinfection.
Recommended Light Sources
- UV-C LEDs (275nm or 280nm): (Primary Match) These are the specific target sources for this filter. Unlike traditional mercury lamps (254nm), modern germicidal LEDs peak at 275–280nm. This filter perfectly isolates that peak to measure the precise dosage being delivered, while blocking ambient visible light or other UV noise.
- Pulsed Xenon Lamps: (Broadband Analysis) These lamps emit high-intensity flashes across the entire UV spectrum. The filter allows you to isolate and quantify specifically the 280nm component of the flash, which is a critical part of the germicidal action spectrum, ensuring the system is effective in that specific band.
- Deuterium Lamps: (Calibration Reference) Used primarily in the lab to calibrate the radiometer sensors. Since Deuterium provides a stable, known output in the 280nm region, it ensures the monitoring equipment is accurate before being deployed to test sterilization systems.
Fequently Asked Questions
What are the Thickness of the Optical Filters?
For standard mounting (mounted,non-thread):
- 3.5mm (by default)
- 6mm (by request)
For unmounted Optics:
- 0.5mm
- 1.1mm
- 2mm
(most of the unmounted optics are having thickness of 1.1mm ~ 2mm)
What is the difference between mountings?
Unmounted:
- a bare glass optical filter
Mounted:
- Smooth Mount for protection of the optics. No thread is there on the mount.
Metric Mount:
- Start with M as prefix, usually seens as M25.5x0.5mm. Mostly used as camera filters
Imperial Mount:
- Start with SM as prefix, usually seen SM1, SM05 etc... Mostly used in Optical system. (You will have a SM external thread to connecting to other objects)
C-Mount:
- Very frequently used mounting. C-Mount is 1‘’-32TPI. And it is not the same thing as SM1, or M25.5x0.5mm.
-
dia12.5mm(mounted)
Clear Aperture:
dia9mm
Mounting Thickness:
3.5mm
Internal/External Thread:
n.a/n.a
-
dia12.5mm(unmounted)
Clear Aperture:
>90%
Mounting Thickness:
n.a
Internal/External Thread:
n.a/n.a
-
dia25mm(mounted)
Clear Aperture:
dia21mm
Mounting Thickness:
3.5mm
Internal/External Thread:
n.a/n.a
-
dia25mm(unmounted)
Clear Aperture:
>90%
Mounting Thickness:
n.a
Internal/External Thread:
n.a/n.a
-
SM05(0.535″-40TPI)
Clear Aperture:
dia9mm
Mounting Thickness:
7.62mm
Internal/External Thread:
SM05/SM05
-
SM1(1.035″-40TPI)
Clear Aperture:
dia21mm
Mounting Thickness:
7.62mm
Internal/External Thread:
SM1/SM1
-
C-Mount(1″-32TPI)
Clear Aperture:
dia21mm
Mounting Thickness:
Internal/External Thread:
C-Mount/C-Mount