STANDARD FILTER DIMENSIONS

If you wish to order filters with special substrate requirements, please contact us. We will then discuss the price of the tailored products.

Filter Sets

Filter Sets consist of three filters. Excitation and Emission filters are circular filters mounted in ring, on which are engraved their names. The Beamsplitter is coated on a plate, therefore it does not have a ring.

  Filter type Dimensions (mm)
Excitation filter BP Ø25 with ring
Emission filter BP or LP Ø25 with ring
Beamsplitter DCLP 26x36x1

Bandpass Filters and Edge Filters

This subsection applies to single-band, multiband, edge filters. These filters are circular and mounted in a laser engraved ring. If nothing else specified, the substrate follows these specifications:

Substrate Material N-BK7 or colored glass
Outer Diameter Diameter 24.1 mm without ring; Diameter 25 mm with ring
Thickness 2 mm
Identification The arrow on the ring points in the direction
of propagation of the light for EX filters,
but in the opposite direction for EM filters.
Please ask for a specific product.

Beamsplitters

This subsection applies to single-band, multiband, angle-tolerant, polarisation beamsplitters. These filters are coated on a rectangular plate. If nothing else specified, the substrate follows these specifications:

Substrate Material
   N-BK7
Dimensions   26 mm x 36 mm
Thickness   1 mm
Identification   One corner identification bevel

Linear Variable Filters

These filters are rectangular filters. If nothing else specified, the substrate follows these specifications:

Substrate Material UV fused silica
Dimensions 60 mm x 15 mm
Thickness 3 mm