• Graph showing the transmission percentage of a LP900 Longpass Filter against wavelength, with a cut-on wavelength of 900nm and a transmission range of T>85% from 910-1750nm, and OD5 blocking from 200-890nm.
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LP900 Longpass Filter (T>85%@910-1750nm, OD5@200-890nm)

LP900 Longpass Filter (T>85%@910-1750nm, OD5@200-890nm)

$50.00 USD
$50.00 USD
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Cut-on Wavelength
Transmission // Blocking
Dimension

Professional LP900 Longpass Filter - Extended Range Near-Infrared Optical Filtering

The LP900 Longpass Filter is engineered for demanding near-infrared applications requiring precise wavelength separation at 900nm. With reliable 85% transmission efficiency and superior OD5 blocking, this filter delivers exceptional performance for advanced NIR optical systems with an extended spectral range up to 1750nm.

Technical Specifications:

  • Cut-on Wavelength: 900nm (T=50%)
  • Good Transmission: T>85% @ 910-1750nm
  • Superior Blocking: OD5 @ 200-890nm

Key Applications:

  • NIR Fluorescence Imaging: Ideal for deep tissue imaging and in-vivo studies
  • Semiconductor Inspection: Essential for silicon wafer analysis and defect detection
  • Laser Diode Systems: Perfect for 980nm laser applications
  • Biomedical Imaging: Optimal for tissue penetration studies
  • Spectroscopy: Precise NIR wavelength discrimination with extended range
  • Telecommunications: Fiber optic communication systems

Performance Features:

  • Sharp transition edge for precise 900nm cutoff
  • Reliable 85% transmission minimizes signal loss
  • OD5 blocking provides excellent background suppression
  • Extended spectral range to 1750nm for versatile applications
  • Consistent performance across entire filter aperture
  • Low scatter and minimal autofluorescence
  • Long-term stability under intense illumination

Technical Advantages:

  • Extended Range: Broad transmission window from 910nm to 1750nm
  • Superior Blocking: OD5 performance provides outstanding background suppression
  • Research Grade: Professional quality for scientific applications
  • Versatile Design: Suitable for both visible rejection and NIR transmission

Application Areas:

  • Medical Devices: Non-invasive diagnostic and therapeutic systems
  • Industrial Inspection: Quality control and material characterization
  • Research: Advanced NIR spectroscopy and optical studies
  • Defense & Security: Night vision and surveillance systems

Quality & Reliability:

  • Advanced multi-layer coating technology
  • Rigorous quality control and performance verification
  • Compatible with standard optical mounts and systems
  • Suitable for both research and industrial applications
  • Designed for high-power NIR laser environments

Perfect for: Near-infrared imaging systems, semiconductor inspection, biomedical research, laser applications, and optical systems requiring precise separation of NIR wavelengths from visible light with extended transmission range capabilities.

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 info@syronoptics.com to get raw data.

Shipment & Delivery

Shipment will usually be made within 5 working days after order.

Delivery from local warehouse is available for below countries and region.

  1. USA
  2. UK
  3. Europe
  4. China
  5. Singapore

To request shipment from local warehouse you need to provide your order number to order@syronoptics.com and inform us from which warehouse you want to initial the shipment.

Return & Refund

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

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

Payment Notice

Payment could be done online with Credit Card, Apple Pay, Google Pay.

Amount will not be deducted immediately after you authorized the payment. We will share raw data for confirmation by email, only after confirmation the amount will be deducted.

For amount under $100 you can request to make payment within 7 days after received the product. (NET7)

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 info@syronoptics.com for details.

Custom Mounting

We have filter mounting option including:

  • Threaded Mounting
  • Retaining Ring
  • Filter Wheel
  • Filter Cube
  • Filter Slide

Buy in Bulk

For order quantity (or equal coating size) above 100pcs x dia25mm filters. Discount will be available.

Generally the discount will be ranging from 10 - 50% depending on the quantity and specification you are ordering.

View full details

FAQs

What is the thickness of the filter?

The substrate thickness may vary from 0.5 - 2.0mm. You can send email to us for requesting the detail information.

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