Reflectance spectrum graph with wavelength on the x-axis and reflectance percentage on the y-axis.

T＞90%@355nm+R>99%@488nm Shortpass Dichroic Mirror(SPDM)

T＞90%@355nm // R>99%@488nm / dia12.5mm(mounted)

$55.00

T＞90%@355nm+R>99%@488nm Shortpass Dichroic Mirror(SPDM)

SO3060520

Transmission Range // Reflection Range

T＞90%@355nm // R>99%@488nm

Dimension

SO3060520-d12.5mt

In stock

$55.00

Yes. Listed filters are generally available from stock, but final availability may depend on size and quantity.

Most filters are kept as medium-sized coated pieces
Final size is usually diced before shipment
Preparation time may vary for urgent orders, custom sizes, or larger quantities

We can usually cut optical filters to custom outer sizes, depending on available coated material.

Custom size

Typical custom size range: 3 × 3mm to 60 × 60mm
Custom sizing changes the outer dimension only
Thickness normally follows the original filter specification
Final feasibility depends on coated material size and cutting requirements

Mounting

Standard mounting options are
dia12.5mm (mounted) - OD = dia12.5mm,Thickness=3.5mm,No Thread
dia25mm (mounted) - OD = dia25mm,Thickness=3.5mm,No Thread
Mounted options can include non-threaded or threaded mounts
Custom mounting may be possible depending on quantity and mechanical requirements

Note

Please send the required size, quantity, mounting type, and product link before ordering.

Yes. You may request the transmission curve or related spectral data for engineering review.

Copy the link of the product page and send email to shop@syronoptics.com, you will get reply within 1 working days.

We ship optical products to most supported regions, with shipping cost and delivery method confirmed before payment.

Shipping cost

Shipping is generally USD 5–40 per parcel
Orders above USD 300 are eligible for free shipping
Final cost depends on destination, package size, order value, and shipping method
Shipping cost is shown during checkout or confirmed before payment

Shipping coverage

We generally ship to Europe, North America, Asia, the Middle East, and Oceania
Some countries may be unavailable depending on logistics or customs conditions

Delivery time

Most stocked products need 1–5 working days for preparation before shipment
After shipment, delivery time depends on destination and shipping method
Tracking information will be provided when available

Note

If your destination is not available during checkout, please contact us before ordering.

You can order online, request a quotation, or use bank transfer depending on your purchasing process.

Can I request a quotation before ordering?

Yes, formal quotations are available before payment
Recommended for company purchases, larger quantities, custom sizes, or special shipping requirements
Please send the product link, quantity, destination country, and billing details if available

What online payment methods are available?

Credit card
Apple Pay
Google Pay

Do you support bank transfer?

Yes, bank transfer is available
We support multi-currency payment through local banking where available
Local receiving accounts may include US, UK, Germany, Singapore, and Hong Kong bank accounts
For payment in Chinese RMB inside Mainland China, please contact our local partner
VAT fapiao may be supported for eligible Mainland China transactions

Do you support company purchase orders?

Company purchase orders may be supported after confirmation
Please contact us before ordering if your organization requires PO processing, quotation, or invoice matching

Are NET payment terms available? (Pay after received)

NET 7 or NET 30 terms may be available for eligible organizations
Approval depends on company type, order value, payment history, and internal review
Please contact us before ordering if you need NET payment terms

mport duties, taxes, and customs handling depend on your destination country and shipping method.

Are duties and taxes included?

For express courier services such as DHL or FedEx, duties, taxes, and customs handling are usually paid by the buyer
The final import cost depends on destination country, declared value, and local customs rules
Duties and taxes are not included unless clearly confirmed before payment

Can SyronOptics help with import clearance?

Import-handled delivery may be available for selected regions
Supported regions may include USA, Canada, United Kingdom,Europe, Mainland China, Hong Kong, Singapore, Australia, and New Zealand
With import-handled delivery, we help arrange clearance and local delivery
This option may be slower than express courier

Note

If you are not sure, please contact us to confirm whether import-handled delivery is supported in your region.

This SPDM (Shortpass Dichroic Mirror) is specifically designed to transmit ultraviolet light while reflecting common visible laser wavelengths, such as the 488 nm blue line.

It is ideal for applications requiring high-precision spectral separation, such as UV fluorescence excitation, laser beam combining, or steering 355 nm pulsed lasers. By allowing the UV signal to pass while effectively reflecting blue light, this mirror ensures a high signal-to-noise ratio and prevents unwanted visible light from interfering with UV-sensitive detectors or processes.

Key specifications:

Wavelength / main spec: Shortpass transition optimized for UV transmission and blue reflection.
Bandwidth / transition spec: Transmits 355 nm; Reflects 488 nm.
Transmission / blocking: T >90% at 355 nm; R >99% at 488 nm.
Format / custom option: Available in mounted (dia 12.5–25 mm) and unmounted (25x36–35x52 mm) formats; custom sizes available on request.

Specifications for product T＞90%@355nm+R>99%@488nm Shortpass Dichroic Mirror(SPDM)
Specifications
Part Number	SO3060520
Curve

Product Faqs

Yes. Send us your wavelength, size, optical setup, and application. We can help check whether this product is suitable or suggest an alternative.

Yes. Transmission curves, drawings, or additional specifications may be available on request depending on the product.

Some products can be customized by size, mounting, wavelength, coating, or package. Custom availability depends on the product type and project requirements.

Contact us with your target specification. We can check stocked alternatives or advise whether a custom option is possible.

Still not sure if this product fits?

Send us your wavelength, size, quantity, application, and any drawing or specification you have. We can help check whether this product is suitable or suggest a stock or custom alternative.