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SP390 Shortpass Filter(T>95%@320-385nm,OD3@400-780nm)

SP390 Shortpass Filter(T>95%@320-385nm,OD3@400-780nm)

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

Professional UV Shortpass Filter - SP390

Optimize your UV optical systems with our SP390 Shortpass Filter, expertly engineered to provide exceptional transmission in the UV-A range (320-385nm) while effectively blocking visible light (400-780nm) for superior spectral selectivity.

Key Features:

  • High UV Transmission: >95% transmission from 320-385nm
  • Excellent Visible Blocking: OD3 (>99.9% blocking) from 400-780nm
  • Sharp Transition: Steep edge between passband and blocking region
  • UV-A Optimized: Perfect for near-UV applications
  • Consistent Performance: Uniform transmission across the aperture
  • Durable Construction: Long-lasting optical reliability

Applications:

  • UV fluorescence microscopy and imaging
  • UV spectroscopy and photometry
  • UV-A excitation filtering
  • Photolithography and semiconductor inspection
  • UV curing and processing systems
  • Forensic analysis and document verification
  • Biomedical UV diagnostics
  • Quality control in UV applications

Technical Specifications:

  • Substrate: Premium UV-grade optical glass
  • Coating: Advanced multi-layer interference coating
  • Passband: 320-385nm with >95% transmission
  • Blocking: 400-780nm with OD3 rejection
  • Edge steepness: Sharp transition at ~390nm
  • Surface quality: Precision polished for minimal scatter
  • Durability: Scratch and humidity resistant coating

Perfect for applications requiring precise UV-A transmission while eliminating visible light contamination. The SP390 provides exceptional performance for UV fluorescence, spectroscopy, and imaging applications where clean UV transmission and effective visible light blocking are essential.

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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