• Graph showing the transmission percentage on the y-axis against wavelength on the x-axis for a longpass filter with a peak transmission wavelength marked at 405nm.
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LP405 Longpass Filter (T>90%@415-1200nm, OD3@200-395nm)

LP405 Longpass Filter (T>90%@415-1200nm, OD3@200-395nm)

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

Professional LP405 Longpass Filter - Violet-Blue Spectral Control

The LP405 Longpass Filter provides precise wavelength control in the critical violet-blue spectral region, making it essential for applications requiring separation of UV and violet light from the visible spectrum. This specialized filter delivers reliable performance for demanding optical systems across research and industrial applications.

Key Specifications:

  • Cut-on Wavelength: 405nm (T=50%)
  • High Transmission Range: T>90% @ 415-1200nm
  • UV/Violet Blocking: OD3 @ 200-395nm
  • Broad Coverage: Visible to near-infrared transmission

Applications & Benefits:

  • Laser Diode Applications: Perfect for 405nm laser line separation and beam cleanup
  • Fluorescence Microscopy: Ideal for DAPI and other UV-excited fluorophore imaging
  • UV Protection Systems: Effective blocking of harmful UV radiation
  • Spectroscopy: Precise wavelength selection for analytical measurements
  • Machine Vision: Enhanced contrast by eliminating UV interference
  • Phototherapy Equipment: Safe separation of therapeutic wavelengths

Technical Advantages:

  • Sharp transition at 405nm for precise spectral separation
  • High transmission (>90%) preserves signal strength
  • OD3 blocking effectively suppresses UV and violet light
  • Extended transmission range covers full visible and NIR spectrum
  • Low autofluorescence for sensitive detection applications

Quality Features:

  • Advanced thin-film coating technology for consistent performance
  • UV-resistant coatings ensure long-term stability under UV exposure
  • Premium optical glass substrate with excellent surface quality
  • Temperature-stable performance across operating conditions
  • Rigorous quality control testing guarantees specifications

Why Choose SyronOptics LP405? Our LP405 filter is specifically engineered for applications requiring precise control in the violet-blue spectral region. With excellent UV blocking and high visible transmission, this filter is the professional choice for laser systems, fluorescence microscopy, and UV protection applications.

Essential for applications requiring precise separation of UV/violet light from the visible 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 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.

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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.

Need any help?