• Spectral transmission graph with a peak at around 800 nm on a white background
  • Black bandpass filter with technical specifications on a white background
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BP850-10 Bandpass Filter(CWL=850nm,FWHM=10nm)

BP850-10 Bandpass Filter(CWL=850nm,FWHM=10nm)

PartNumber:SO3010622

$60.00 USD
$60.00 USD
Sale Sold out
Shipping calculated at checkout.
Center Wavelength (CWL) // FWHM
Optical Density // Peak Transmission (Tpk)
Dimension

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.
  • Wavelength: 850nm center wavelength with 10nm FWHM for near-infrared applications
  • Spectral Features: Ultra-narrow bandpass transmission optimized for high-precision NIR spectroscopy, PCB inspection, and critical optical applications
  • Optical Density: OD5 blocking for exceptional out-of-band rejection and signal clarity
  • Filter Dimension Availability: Multiple sizes available to fit your optical system requirements

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

  • 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

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 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

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.

View full details
  • BP850-10 Bandpass Filter - Intelligent Traffic Systems (ANPR/LPR)

    BP850-10 Bandpass Filter - Intelligent Traffic Systems (ANPR/LPR)

    Intelligent Traffic Systems (ANPR/LPR)

    • License Plate Recognition. Cameras use a bright 850nm flash to read plates at night. This filter blocks headlights and streetlights, ensuring the camera sees only the reflective plate.

    Recommended Light Sources

    • High-Power 850nm IR LED Illuminator (or VCSEL): Delivers a high-intensity burst of infrared light that matches the filter's 850nm passband, ensuring maximum reflection from the license plate reaches the sensor while overpowering headlight glare and remaining non-distracting to drivers.

  • BP850-10 Bandpass Filter - Biometric Security (Iris & Face Recognition)

    BP850-10 Bandpass Filter - Biometric Security (Iris & Face Recognition)

    Biometric Security (Iris & Face Recognition)

    • Facial recognition systems (like those in phones or secure doors) use 850nm because it doesn't dazzle the user's eyes. The narrow filter prevents sunlight from blinding the sensor during the scan.

    Recommended Light Sources

    • 850nm VCSEL (Vertical-Cavity Surface-Emitting Laser): Offers a precise, narrow spectral width that fits perfectly within the filter's tight 10nm window, enabling highly efficient, high-speed modulation for 3D depth sensing (like FaceID) without the "red glow" visibility issues of some LEDs.

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

Need any help?