• Graph representing the transmission curve of a longpass filter, with the x-axis indicating wavelength in nm and the y-axis indicating transmission percentage.
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LP360 Longpass Filter (T>90%@370-1200nm, OD3@200-350nm)

LP360 Longpass Filter (T>90%@370-1200nm, OD3@200-350nm)

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

In Stock.

Ships within 5 working days of order.
  • Wavelength: LP360 longpass filter optimized for UV-A to NIR applications from 370-1200nm
  • Spectral Features: Sharp cut-on at 360nm with >90% transmission above 370nm for superior signal clarity
  • Optical Density: OD3 blocking from 200-350nm ensures effective rejection of UV-B and UV-C wavelengths
  • Filter Dimension Availability: Multiple sizes available – contact us for custom dimensions and mounting options

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.

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.

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.

lp360-d12.5

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  • LP360 Longpass Filter - Photolithography (Mask Alignment)

    LP360 Longpass Filter - Photolithography (Mask Alignment)

    Photolithography (Mask Alignment)

    This is one of the most common industrial applications for an LP360.

    • Function: In photolithography, photoresists are sensitive to specific "lines" of UV light produced by mercury lamps. An LP360 filter is often used to block the deep UV radiation (which can cause degradation or unwanted exposure effects) while transmitting the critical i-line (365nm), h-line (405nm), and g-line (436nm).
    • Why this filter? It perfectly separates the damaging Deep UV (<350nm) from the functional Near UV (365nm+).

    Recommended Light Sources

    You need a broadband source that contains the strong spectral lines this filter is designed to transmit.

    • Mercury Arc Lamps (High Pressure): These are the standard. They emit strong peaks at 365nm (passed), 405nm (passed), and 436nm (passed), as well as deep UV peaks (blocked by the filter).
    • Metal Halide Lamps: Often used in curing; the filter shapes the output to remove the more hazardous shortwave UV.
  • LP360 Longpass Filter - Deep UV Fluorescence Imaging (Emission Side)

    LP360 Longpass Filter - Deep UV Fluorescence Imaging (Emission Side)

    Deep UV Fluorescence Imaging (Emission Side)

    • Function: If you are inducing fluorescence using a Deep UV source (e.g., 250nm–340nm), you need a filter on the camera/sensor to block that excitation light so it doesn't wash out the image.
    • Why this filter? The LP360 blocks the excitation (Deep UV) but passes the resulting emission, even if that emission is in the UV-A range (e.g., 360nm–380nm) or the visible range.

    Recommended Light Sources

    You need a source that emits in the filter's blocked region.

    • Deep UV LEDs: 255nm, 265nm, 280nm, 310nm, or 340nm.
    • Xenon Flash Lamps (Filtered): With a bandpass filter to select the 250–340nm range.

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