HM-707 Hot Mirror & UV-IR Cut Filter
HM-707 is a visible-pass, IR-trimming hot mirror: ~96–99 % T from ~420–690 nm (ultra-flat), a fast long-wave cut around ~705–725 nm, ~5–15 % T across ~780–950 nm with a modest ~850–880 nm lobe, and strong UV suppression below ~390–400 nm.
- VIS window: ~96–99 % T, ~420–690 nm (high, flat, low ripple)
- IR edge: Fast transition near ~705–725 nm for clean VIS↔NIR separation
- IR attenuation: ~5–15 % T through ~780–950 nm; modest lobe ~850–880 nm
- UV behaviour: Strong short-wave suppression <~390–400 nm
- Durability: Low-scatter hard dielectric; abrasion & humidity resistant
- 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-707 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 for your setup.
Typical applications • Digital & film cameras (neutral white with trimmed NIR) • Projectors & light engines (divert heat-carrying NIR) • 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-707 hot-mirror filters are coated and cut-to-size (including dicing) to your exact spec—fast.
Description
HM-707 is a visible-pass, IR-trimming hot mirror. It holds a high, flat passband at ~96–99% transmittance from ~420–690 nm, then makes a fast long-wave cut around ~705–725 nm. In the near-IR the curve settles to roughly ~5–15% T through ~780–950 nm, with a modest lobe near ~850–880 nm. UV below ~390–400 nm is strongly suppressed.
Key advantages
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Ultra-flat VIS window — ~96–99% T from ~420–690 nm preserves true colour and luminance.
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Fast ~707 nm edge — clean separation between the visible and first NIR band.
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Controlled IR attenuation — typically ~5–15% T from ~780–950 nm; plan secondary blocking if deeper rejection is required.
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UV moderation — steep short-wave cutoff reduces fluorescence and sensor haze.
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Low-scatter, 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 — trim NIR contamination while keeping white balance neutral.
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Projectors & light engines — divert 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 reducing out-of-band light.
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AR/HUD combiners — bright imagery with managed 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-707 hot-mirror filters are coated and cut-to-size (including dicing) to your exact spec—fast.
