• A graph showing the transmission of a bandpass filter with a central wavelength at 855nm and a bandwidth of 30nm.
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BP855-30 Bandpass Filter(CWL=855nm,FWHM=30nm)

BP855-30 Bandpass Filter(CWL=855nm,FWHM=30nm)

PN:SO3010632

$50.00 USD
$50.00 USD
Sale Sold out
Shipping calculated at checkout.
Center Wavelength (CWL) // FWHM
Optical Density // Peak Transmission (Tpk)
Dimension

High-Selectivity NIR Bandpass Filter for Precision Applications

The BP855-30 Bandpass Filter delivers exceptional spectral selectivity for demanding near-infrared applications at 855nm. With its precisely engineered 30nm bandwidth, this filter provides superior wavelength discrimination and excellent signal purity, making it ideal for applications requiring exact spectral control and clean signal isolation in the NIR spectrum.

Technical Excellence:

  • Center Wavelength (CWL): 855nm - precisely tuned for NIR applications
  • Full Width Half Maximum (FWHM): 30nm narrow bandwidth for maximum selectivity
  • Superior Blocking: Exceptional out-of-band rejection for clean signals
  • High Transmission: Optimized passband efficiency
  • Precision Manufacturing: Tight tolerance control for consistent performance

Specialized Applications:

  • High-resolution spectroscopy and chemical analysis
  • Precision fluorescence microscopy and imaging
  • Laser line filtering and beam cleanup
  • Advanced research instrumentation
  • Quantitative analytical measurements
  • Biomedical diagnostics and sensing
  • Single-wavelength detection systems

Performance Advantages:

  • Maximum Selectivity: Narrow bandwidth eliminates spectral interference
  • Signal Purity: Superior blocking ensures clean, noise-free measurements
  • Precision Control: Ideal for applications requiring exact wavelength isolation
  • Research Grade: Meets the demanding requirements of scientific instrumentation
  • Stable Performance: Consistent optical characteristics over time

SyronOptics Precision Engineering: Each BP855-30 filter is manufactured using our most advanced thin-film deposition technology, featuring multiple precision-controlled layers for optimal performance. Our rigorous quality control process includes comprehensive spectral testing to ensure every filter meets the exacting specifications required for high-precision optical applications.

The ideal choice for researchers, optical engineers, and system designers who demand the highest level of spectral selectivity and signal purity in their NIR optical systems operating at 855nm.

Transmission & OD Data

The transmission curve is typical. Actual data may vary from lot to lot, you can request the raw Transmission and OD data from us.

Copy the link of the product page and send email to shop@syronoptics.com to get raw data.

Shipment & Delivery

For stocked products, shipment will usually be made within 5 working days after order.

For customized products, shipment will usually be made within 4-8 weeks after order.

Return & Refund

Stocked Product are eligible to return within 7 days after receiving.

A flat rate of 35$ will be charged for returning.

Custom Sizing

Custom sizing is available for dimension under 60x60mm. Without mounting the thickness will generally ranging from 0.5-3mm.

For bigger size, contact shop@syronoptics.com for details.

Optical dicing refers to precision cutting processes used to segment optical materials, particularly those with specialized coatings, into smaller functional components while maintaining their structural and optical integrity. In the context of optical coating flats (flat substrates like glass, fused silica, or semiconductors coated with anti-reflective, dielectric, or other optical layers), dicing ensures these coated substrates meet exact dimensional requirements for applications in photonics, lasers, sensors, and semiconductor devices.

Methods

  • Saw Dicing: Diamond-coated blades for clean cuts with minimal chipping.
  • Laser Dicing: Non-contact ablation for delicate or brittle materials, reducing mechanical stress.
  • Plasma Dicing: Dry etching for ultra-fine features, ideal for advanced semiconductor wafers.

Price

Dicing Service will generally cost from $50 to $125 per piece. Depending on the accuracy and size you are requesting.

Packaging

If you need generic packaging, please leave "Generic" in the note when placing order.

In such case:

  • No Branding information in Packaging Materials
  • All Documentation will be generic
  • We will send image of the parcel to you before fulfilling shipment
  • You can use your document template for the shipment.

Feel free to contact shop@syronoptics.com for details.

Payment

Payment could be done online with Credit Card, Apple Pay, Google Pay, Wechat Pay and Alipay

For amount under $200 you can request to make payment within 7days after receiving the order.

View full details

Fequently Asked Questions

What are the Thickness of the Optical Filters?

For Mounted Optics:

  • 6mm (by Default)
  • 3.5mm (Specified in Order Note)

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 (Usually Thorlabs):

  • 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.

Standard Mountings

Camera Mounting List

  • Our filters can be cut to match the mounting on the list. Please contact us for getting quotation.

Need any help?

Other Wavelength

UV Bandpass Filter (100-400nm)

VIS Bandpass Filter (400-800nm)

NIR Bandpass Filter (800-1400nm)