HM-GLAV Hot Mirror & UV-IR Cut Filter
HM-GLAV is a visible-pass, UV- and near-IR-blocking hot mirror: ~92–95 % T across 400–700 nm, strong UV cut <~390 nm, and a steep long-wave edge at ~740–760 nm. NIR stays in low single digits to ~1.2 µm, then rises >90 % beyond ~1.3 µm.
- VIS window: ~92–95 % T, 400 – 700 nm (ultra-flat)
- UV edge: Strong cutoff below ~380–390 nm
- IR edge: Steep VIS→IR transition at ~740–760 nm
- NIR behaviour: Low single-digit %T ~0.8–1.2 µm; transmission >90 % >~1.3 µm (use SWIR blocker if needed)
- Spectral quality: Low ripple in VIS for accurate colorimetry & exposure matching
- Substrates & format: Borofloat®, Eagle XG, D263 T, or soda-lime; 5–450 mm • 0.21–3.8 mm; rear-AR & slight wedge options (to ~450 °C; ≤150 °C for soda-lime)
Learn more
HM-GLAV preserves luminance and neutral white balance while trimming UV and NIR that cause fluorescence, haze, and thermal drift. The dual-edge design keeps Si-band sensors clean; if SWIR rejection is required beyond ~1.3 µm, pair with a dedicated blocker.
Typical applications • Digital & film cameras (suppress UV/NIR pollution) • Projectors & light engines (reflect heat-carrying NIR) • Machine vision & human-viewing optics (true-colour to Si sensors) • AR/HUD combiners (bright imagery, reduced thermal load) • Microscopy & biomedical illumination (cool, shadow-free white light).
Need test chips tomorrow or thousands next quarter? HM-GLAV hot-mirror filters are coated and cut-to-size (including dicing) to your exact spec—fast.
Description
HM-GLAV is a visible-pass, UV- and near-IR-blocking hot mirror. It holds ~92–95% T across the 400–700 nm band, cuts UV below ~380–390 nm, and makes a steep long-wave edge near ~740–760 nm. Through the near-IR, transmission remains in the low single digits to roughly ~1.2 µm. Beyond ~1.3 µm the curve rises again, reaching >90% T with some structure toward 1.4–1.5 µm.
Key advantages
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Ultra-flat VIS window — ~92–95% T from 400–700 nm preserves true colour and luminance.
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Dual-edge UV+IR blocking — strong UV cutoff (~<390 nm) and a sharp VIS-to-IR edge (~740–760 nm) keep Si-band sensors clean.
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Controlled NIR leakage — typically low single-digit %T from ~0.8–1.2 µm; transmission returns above ~90% beyond ~1.3 µm (use an added SWIR blocker if needed).
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Low ripple in VIS — supports accurate colourimetry and easy exposure matching.
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Durable dielectric stack — abrasion and humidity resistant for field, stage, and lab use.
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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
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Digital & film cameras — suppress UV/NIR pollution while keeping white balance neutral.
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Projectors & light engines — reflect heat-carrying NIR away from phosphor wheels and LCD engines.
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Machine vision & human-viewing optics — pass true-colour images to Si sensors while trimming out-of-band light.
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AR/HUD combiners — bright imagery with reduced thermal load in compact waveguides.
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Microscopy & biomedical illumination — deliver cool, shadow-free white light to instruments.
Need test chips tomorrow or thousands next quarter? HM-GLAV hot-mirror filters are coated and cut-to-size (including dicing) to your exact spec—fast.
