BMS-011 Beam Splitter

BMS-011 is a broadband, colour-neutral VIS beamsplitter that delivers a stable ~T77/R23 split across the eye-sensitive 400–730 nm band, drifting only slightly to ~76% T by ~780 nm. You get two clean, true-colour paths with minimal balancing—and helpful UV moderation below ~360 nm to tame stray fluorescence.

Key advantages

• Neutral, repeatable ratio – ~77–79% T / ~21–23% R with <±1.5% ripple keeps exposure and colour closely matched between channels.

• Flat spectral response – simplifies radiometric calibration and thresholding in machine vision.

• UV trimmed, VIS preserved – attenuates deep-UV while maintaining natural white balance.

• Thermal-friendly throughput – moderate T/R split reduces heat load in light engines and microscopes.

• Rugged dielectric stack – abrasion and humidity resistant for stage, field, and lab use.

• Made to fit – choose Borofloat®, Eagle XG, or D263 T (0.21–3.8 mm) for up to ~450 °C, or economical soda-lime for ≤150 °C. Custom-cut 5–450 mm; options include rear-surface AR and a slight wedge to suppress ghosts.

Typical applications

• Machine vision taps – send a stable percentage to inspection/recording without tint.

• Cameras & cinema – optical viewfinders, director’s feeds, dual-sensor capture.

• Projectors & light engines – constant-ratio sampling for feedback or colour sensors.

• Metrology & alignment – power pick-offs and interferometer splits.

• Microscopy & biomedical – route illumination/detection paths while keeping colours true.

Need test chips tomorrow or thousands next quarter? BMS-011 beamsplitters are coated, diced, and shipped to your exact spec—fast.