• Graph showing transmission versus wavelength with a peak at around 600 nm.
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BP640-10 Bandpass Filter(CWL=640nm,FWHM=10nm)

BP640-10 Bandpass Filter(CWL=640nm,FWHM=10nm)

PN:SO3014441

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

BP640-10 Bandpass Filter – Ultra-Narrow Deep Red Wavelength Isolation

The BP640-10 is an ultra-narrow bandpass filter engineered for applications demanding the highest level of spectral precision in the deep red region. With a center wavelength (CWL) of 640nm and an exceptionally narrow full-width half-maximum (FWHM) bandwidth of 10nm, this filter delivers unmatched wavelength selectivity for advanced fluorescence microscopy, laser line filtering, and high-resolution spectroscopy.

Key Specifications

  • Center Wavelength (CWL): 640nm
  • Bandwidth (FWHM): 10nm
  • Passband Range: 635–645nm (nominal)
  • Optical Density (OD): OD6 blocking
  • Substrate: High-quality optical glass
  • Coating: Hard dielectric multi-layer coating

Applications

  • High-precision fluorescence microscopy with mCherry, tdTomato, and similar red fluorophores
  • Laser line filtering for 633nm and 640nm laser systems
  • Ultra-high-resolution spectroscopy and photometry
  • Multi-channel imaging requiring maximum spectral separation
  • Flow cytometry and single-molecule detection
  • Raman spectroscopy and optical instrumentation

Performance Features

  • Ultra-narrow 10nm bandwidth for maximum spectral resolution
  • High transmission efficiency in the passband (>90% typical)
  • OD6 out-of-band blocking for exceptional contrast and signal-to-noise ratio
  • Steep edge transitions for precise wavelength discrimination
  • Durable hard-coated surface for long-term reliability
  • Low autofluorescence for sensitive detection applications
  • Compatible with standard filter holders and optical mounts

Quality Assurance

Each BP640-10 filter is manufactured using precision ion-beam sputtering and undergoes rigorous spectral verification. Transmission curves and test data are available upon request to ensure performance meets your system requirements.

Ideal for researchers, life sciences laboratories, and OEMs requiring the highest level of spectral precision and lab-grade optical performance in the deep red spectrum.

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)