930nm Short-Pass Dichroic Filter

The MP-DF-930 is a high-performance fluorescence dichroic beamsplitter with a cut-on/cut-off edge wavelength at 930 nm, designed primarily for separating transmitted and reflected light in the near-infrared spectral region. The product offers high transmission in the 750-880 nm band with an average transmittance Tavg > 93%, while simultaneously providing efficient reflection in the 980-1140 nm band, thus effectively separating optical signals of different wavelength ranges. Optimized for a 45°angle of incidence, it features the edge steepness required for standard fluorescence applications and delivers wavefront quality suitable for imaging. With a reflected wavefront error of < 2λ P-V @ 632.8 nm, it maintains good imaging quality while performing spectral separation. The filter adopts a rectangular format of 25.2 mm × 35.6 mm and is suitable for fluorescence microscopy, near-infrared imaging, spectral analysis, biomedical detection, and multi-channel optical systems.