BMS-003 Beam Splitter
BMS-003 is a colour-separating VIS beamsplitter (red-transmitting): it reflects most blue–green content, then makes a steep transition near ~530–550 nm into a high-throughput red passband (~85–90 % T from ~590–700 nm) with a gentle roll to ~55–60 % T by ~800 nm—yielding a bright red transmit path and a high-contrast blue/green reflection path.
- Function: Colour-separating, red-transmitting / blue–green-reflecting (VIS)
- Red pass edge: Fast 10–90 % rise at ~530–550 nm (clean separation)
- Red throughput: ~85–90 % T (590–700 nm); gradual roll to ~55–60 % by ~800 nm
- Blue/green in T-path: ≤30 % T below ~500 nm (energy sent to reflection arm)
- Spectral quality: Low ripple across the red for stable colorimetry & exposure
- Construction & format: Hard dielectric stack on Borofloat®, Eagle XG, D263 T, or soda-lime; custom-cut 5–450 mm (0.21–3.8 mm); options: rear-surface AR & slight wedge
Learn more
BMS-003 cleanly separates red/orange from shorter wavelengths: a steep edge around ~530–550 nm delivers a bright, colour-true red transmit path while pushing blue/green into the reflection channel for high-contrast excitation or imaging. The smooth red passband keeps ripple low for predictable colorimetry and simple exposure control.
Typical applications • Fluorescence & bio-imaging (reflect 488/532 nm excitation, transmit red emission) • Machine vision (red analysis channel + reflected blue/green to a second sensor) • Projectors & light engines (route red to detectors/waveguides, reflect shorter bands for balancing) • Metrology & alignment (transmit 633 nm He–Ne, reflect shorter wavelengths) • Cameras & cinema (creative colour routing, red-weighted viewfinders, dual-sensor capture).
Typical spectral behaviour (T-path) — 300–500 nm: ~5–35 % T with controlled oscillations • ~530–550 nm: steep edge • 590–700 nm: ~85–90 % T (flat) • 700–800 nm: gradual roll to ~55–60 % T.
Need test chips tomorrow or thousands next quarter? BMS-003 beamsplitters are coated and cut-to-size (including dicing) to your exact spec—fast.
Description
BMS-003 is a colour-separating VIS beamsplitter (red-transmitting). It reflects most blue–green content, then makes a steep transition near ~530–550 nm into a high-throughput red passband: ~85–90% T from ~590–700 nm, followed by a gentle roll to ~55–60% T by ~800 nm. The result is a bright red transmit path and a high-contrast blue/green reflection path—ideal when you need two spectrally distinct channels from one white source.
Key advantages
-
Sharp red pass edge – fast 10–90% rise around ~530–550 nm cleanly separates blue/green from red/orange.
-
High red throughput – ~85–90% T (590–700 nm) keeps the transmit path bright and colour-true.
-
Blue/green suppression in T-path – ≤30% T below ~500 nm sends shorter wavelengths to the reflection arm for strong excitation or imaging.
-
Smooth passband – low ripple across the red ensures stable colorimetry and easy exposure.
-
Rugged dielectric stack – abrasion and humidity resistant for field, stage, and lab environments.
-
Made to fit – choose Borofloat®, Eagle XG, or D263 T (0.21–3.8 mm) for duty up to ~450 °C, or soda-lime for ≤150 °C. Custom-cut 5–450 mm; options include rear-surface AR and a slight wedge to suppress ghosts.
Typical applications
-
Fluorescence & bio-imaging – reflect 488/532 nm excitation while transmitting red emission.
-
Machine vision – split a red analysis channel while reflecting blue/green to a second sensor.
-
Projectors & light engines – route red power to detectors or waveguides, reflect shorter bands for balancing.
-
Metrology & alignment – transmit 633 nm He-Ne or other red sources while reflecting shorter wavelengths.
-
Cameras & cinema – creative colour routing, red-weighted viewfinders, or dual-sensor capture.
Typical spectral behaviour (T-path)
300–500 nm: ~5–35% T with controlled oscillations · ~530–550 nm: steep edge · 590–700 nm: ~85–90% T (flat) · 700–800 nm: gradual roll to ~55–60% T.
Need test chips tomorrow or thousands next quarter? BMS-003 beamsplitters are coated and cut-to-size (including dicing) to your exact spec—fast.
