BMS-007 Beam Splitter
BMS-007 is a UV-blocking, colour-neutral VIS beamsplitter (≈T50/R50). It rises quickly at the blue edge, then holds ~49–53 % T from 400–750 nm with a mild ~600 nm bump, while strongly suppressing UV below ~350–360 nm for clean white-light splits without stray fluorescence or sensor haze.
- Passband: 400 – 750 nm (VIS), colour-neutral
- VIS split ratio: ~49–53 % T / ~47–51 % R (≈50/50)
- UV behaviour: Strong suppression < ~350–360 nm; steep turn-on ~360–380 nm
- Spectral flatness: Low ripple across VIS; gentle mid-band bump near ~600 nm
- Construction: Hard dielectric stack on Borofloat®, Eagle XG, D263 T, or soda-lime
- Custom sizes: 5 – 450 mm • 0.21 – 3.8 mm; rear-surface AR & slight wedge options
Learn more
The neutral 50/50 split of BMS-007 keeps exposure and colour closely matched between paths, while the UV cut reduces fluorescence, veiling glare, and thermal loading. Low spectral ripple supports straightforward radiometric calibration and thresholding in machine vision and imaging systems.
Typical applications • Machine-vision taps (constant-ratio sampling without UV-induced noise) • Optical viewfinders & director’s feeds • Microscopy/biomedical epi-illumination pick-offs • Projector/light-engine feedback and power sampling • Interferometers and beam diagnostics needing stable 50/50 splits.
Typical spectral behaviour (T-path) — 400–750 nm: ~49–53 % T (flat) • ~600 nm: gentle peak ~53–55 % T • < ~350–360 nm: strong UV suppression.
Need test chips tomorrow or thousands next quarter? BMS-007 beamsplitters are coated, diced, and shipped to your exact spec—fast.
Description
BMS-007 is a UV-blocking, colour-neutral VIS beamsplitter (≈ T50/R50). It comes up fast at the blue edge, then holds a stable ~49–53 % transmission from 400–750 nm, with a mild mid-band bump around ~600 nm. Below the visible, it strongly suppresses UV (<~350–360 nm)—ideal when you need a clean white-light split without stray fluorescence or sensor haze.
Key advantages
- Neutral 50/50 split – ~T49–53 / R47–51 across the visible keeps exposure and colour closely matched between paths.
- Steep UV/blue turn-on – rapid rise around ~360–380 nm trims deep-UV while preserving natural colour balance.
- Low ripple across VIS – small spectral variation simplifies radiometric calibration and thresholding.
- Cleaner images, cooler optics – UV suppression reduces fluorescence, veiling glare, and thermal load.
- Rugged dielectric stack – abrasion and humidity resistant for stage, field, and lab environments.
- Made to fit – Borofloat®, Eagle XG, or D263 T (0.21–3.8 mm) for high-temp duty to ~450 °C; 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 – constant-ratio sampling without UV-induced noise.
- Cameras & cinema – optical viewfinders and monitoring with neutral colour in both paths.
- Microscopy & biomedical – epi-illumination pick-offs that avoid UV fluorescence.
- Projectors & light engines – feedback/power pick-offs while protecting optics from UV.
- Metrology & alignment – stable 50/50 splits for interferometers and beam diagnostics.
Typical spectral behaviour (T-path)
400–750 nm: ~49–53 % T (flat) · ~600 nm: gentle peak ~53–55 % T · <~350–360 nm: strong UV suppression.
Need test chips tomorrow or thousands next quarter? BMS-007 beamsplitters are coated, diced, and shipped to your exact spec—fast.
