Dichroic Beamsplitters

Delta Optical Thin Film is one of the few companies that can produce low-bending dichroic beamsplitters.

Delta Optical Thin Film’s dichroic beamsplitters feature high transmission band, high reflection band and edge steepness.

DCLP — Long Wave Pass Dichroic
DCSP — Short Wave Pass Dichroic

These single-edge dichroic beamsplitters feature:

  • Can be designed to have a low bending.
  • Ultra-Hard-Coated filters.
  • Scratch/Dig Optical Surface Specifications 60/40 (TopPride™), else 80/50.
  • Standard dimension is a plate 26 mm x 36 mm x 1 mm — other dimensions on request.
  • The wavelength given in the denomination is typically the edge wavelength where the transmission of the filter has reached 50% of the average transmission level.
  • The data sheets show typical transmission curves for unpolarised light and an AOI=45°.

If you need further information, please contact us and hear more about how we can develop your custom specific beamsplitter.

AOI Tolerant Dichroic Beamsplitters

AOI tolerant dichroic beamsplitterDelta Optical Thin Film have launched a new range of dichroic beamsplitters that maintain performance while the angle of incidence changes.

These dichroic beamsplitters are angle tolerant, and the angle dependent movements of the edge and polarisation splitting is minimised. The reflection and transmission of these beamsplitters remain high in the specified wavelength ranges.

Our range of AOI tolerant dichroic beamsplitters have ultra-hard coated filters, which are extremely robust and can maintain a high level of performance even in elevated temperatures and high humidity. The standard dimensions for these beamsplitters is a plate at 26 mm x 36 mm x 1 mm, but custom dimensions are available on request if required.

We have two standard types of these filters, the DCLP which is a long wave pass dichroic, and DCSP which is a short wave pass dichroic.

These beamsplitters have a range of application areas, including Point of Care systems and LED based imaging.

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