• Graph showing the transmission percentage of a longpass filter against wavelength, with a cut-on wavelength of 740nm and a blocking range indicating OD5 at 200-725nm.
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LP740 Longpass Filter (T>95%@740-1000nm, OD5@200-725nm)

LP740 Longpass Filter (T>95%@740-1000nm, OD5@200-725nm)

$50.00 USD
$50.00 USD
Sale Sold out
Shipping calculated at checkout.
Cut-on Wavelength
Transmission // Blocking
Dimension

Premium LP740 Longpass Filter - Ultra-High Performance Near-Infrared Filtering

The LP740 Longpass Filter represents excellence in near-infrared optical filtering, delivering outstanding 95% transmission efficiency with superior OD5 blocking. Engineered for the most demanding applications, this premium filter provides exceptional performance for advanced NIR optical systems across a focused spectral range up to 1000nm.

Outstanding Specifications:

  • Cut-on Wavelength: 740nm (T=50%)
  • Ultra-High Transmission: T>95% @ 740-1000nm
  • Superior Blocking: OD5 @ 200-725nm

Key Applications:

  • NIR Fluorescence Imaging: Ideal for deep tissue imaging and biological studies
  • Semiconductor Inspection: Essential for silicon wafer analysis and quality control
  • Biomedical Imaging: Perfect for non-invasive medical diagnostics
  • Material Analysis: Optimal for polymer and pharmaceutical characterization
  • Laser Systems: Effective filtering for NIR laser applications
  • Industrial Sensing: Quality control and process monitoring

Performance Excellence:

  • Ultra-sharp transition edge for precise 740nm cutoff
  • Exceptional 95% transmission minimizes signal loss
  • OD5 blocking provides outstanding background suppression
  • Focused spectral range optimized for NIR applications (740-1000nm)
  • Consistent performance across entire filter aperture
  • Low scatter for clean optical systems
  • Stable performance under high-power conditions

Technical Advantages:

  • Premium Performance: Industry-leading 95% transmission efficiency
  • Superior Blocking: OD5 performance ensures excellent rejection of unwanted wavelengths
  • Research Grade: Professional quality for critical applications
  • Optimized Range: Focused transmission window for specific NIR applications

Application Areas:

  • Medical Devices: Non-invasive diagnostic and therapeutic systems
  • Industrial Inspection: Quality control and material characterization
  • Research: NIR spectroscopy and optical studies
  • Agriculture: Crop monitoring and food quality analysis

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: Advanced near-infrared imaging systems, biomedical research, material analysis, and high-end optical systems requiring maximum transmission efficiency and superior NIR filtering performance with focused spectral range.

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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