HM-730 is a visible-pass, IR-trimming hot mirror: ~92–95 % T from ~420–700 nm (low ripple), a fast cut near ~730 nm, ~10–15 % T across ~780–1100 nm, then a rise toward short-SWIR (~75 % T by ~1.2 µm). UV <~380 nm is strongly suppressed.
HM-730 preserves visible colour and luminance while trimming near-edge IR that drives haze and heat. Use as a primary VIS pass with moderated NIR; add a secondary blocker if deeper IR rejection is required (e.g., for SWIR-sensitive setups).
Typical applications • Digital & film cameras (neutral white with trimmed NIR) • Projectors & light engines (divert heat-carrying IR) • Machine vision & human-viewing optics (true-colour to Si sensors) • AR/HUD combiners (bright imagery, managed thermal load) • Microscopy & biomedical illumination (cool, shadow-free white).
Need test chips tomorrow or thousands next quarter? HM-730 hot-mirrors are coated and cut-to-size (including dicing) to your exact spec—fast.
HM-730 is a visible-pass, IR-trimming hot mirror. It holds a high, flat passband at ~92–95% transmittance from ~420–700 nm with low ripple, then makes a fast long-wave cut near ~730 nm. In the near-IR the curve settles to ~10–15% T across roughly 780–1100 nm, before rising toward the short-SWIR (~75% T by ~1.2 μm). UV below ~380 nm is strongly suppressed.
Key advantages
High, flat VIS window — ~92–95% T from ~420–700 nm preserves colour fidelity and luminance.
Fast ~730 nm edge — clean separation between the visible and the first NIR band.
Controlled IR attenuation — ~10–15% T across ~780–1100 nm; plan secondary blocking if deeper IR rejection is required.
UV moderation — steep short-wave cutoff (<~380 nm) helps reduce fluorescence and sensor haze.
Durable dielectric stack — abrasion and humidity resistant for field, stage, and lab use.
Flexible glass choices — Borofloat®, Eagle XG, or D263 T (0.21–3.8 mm) for high-temp duty to ~450 °C; soda-lime for ≤150 °C. Custom sizes 5–450 mm; rear-surface AR and slight wedge available to suppress ghosts.
Typical applications
Digital & film cameras — trim NIR contamination while keeping white balance neutral.
Projectors & light engines — divert heat-carrying NIR away from phosphor wheels and LCD engines.
Machine vision & human-viewing optics — pass true-colour images to Si sensors while reducing out-of-band light.
AR/HUD combiners — bright imagery with managed thermal load in compact waveguides.
Microscopy & biomedical illumination — deliver cool, shadow-free white light to instruments.
Need test chips tomorrow or thousands next quarter? HM-730 hot-mirror filters are coated and cut-to-size (including dicing) to your exact spec—fast.