Hot Mirrors

Our standard line of high transmission Hot Mirrors is an excellent choice for preventing undesirable heat from damaging thermally unstable materials or altering the spectral characteristics beyond that position in a light path by reflecting infrared light while allowing visible light to transmit. We offer two designs, for use at either 0° or 45° angle of incidence.  We produce these specialized dielectric mirrors on Borosilicate/Float glass. Hot Mirrors may also satisfy your requirements of a dichroic beam splitter. If other substrate materials are of interest to you, to pass ultraviolet light for instance, please contact us. Custom sizes are easy to process as well.

  • Reflect the infrared light
  • Transmit the visible light
  • Optimized to remove undesirable heat and infrared illumination
  • Available for 0° or 45° angle of incidence
  • High Reflected to Transmitted light performance

Product SKUs

  • Hot Mirror, Red Reflector, 45

    Hot Mirror Specifications | HMR-45-25D

    Cut-Off Wavelength

    580 nm

    Cut-Off Tolerance

    ±15 nm

    Transmission Region

    400-550 nm

    Reflection Region

    610-725 nm

    Reflection (min)

    90%

    Angle of Incidence

    45⁰

    Size (mm)

    25 mm Dia.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    ± 0.1 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Red Reflector, 45

    Hot Mirror Specifications | HMR-45-25S

    Cut-Off Wavelength

    580 nm

    Cut-Off Tolerance

    ±15 nm

    Transmission Region

    400-550 nm

    Reflection Region

    610-725 nm

    Reflection (min)

    90%

    Angle of Incidence

    45⁰

    Size (mm)

    25 mm Sq.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    ± 0.1 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Red Reflector, 45

    Hot Mirror Specifications | HMR-45-50D

    Cut-Off Wavelength

    580 nm

    Cut-Off Tolerance

    ±15 nm

    Transmission Region

    400-550 nm

    Reflection Region

    610-725 nm

    Reflection (min)

    90%

    Angle of Incidence

    45⁰

    Size (mm)

    50 mm Dia.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    ± 0.1 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Red Reflector, 45

    Hot Mirror Specifications | HMR-45-50S

    Cut-Off Wavelength

    580 nm

    Cut-Off Tolerance

    ±15 nm

    Transmission Region

    400-550 nm

    Reflection Region

    610-725 nm

    Reflection (min)

    90%

    Angle of Incidence

    45⁰

    Size (mm)

    50 mm Sq.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    ± 0.1 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Wide Band, 0

    Hot Mirror Specifications | HMW-0-25D

    Transmission Region

    450-645 nm

    Reflection Region

    750-1200 nm

    Reflection (min)

    90%

    Angle of Incidence

    0⁰

    Size (mm)

    25 mm Dia.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    +0.25/-0.00 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Wide Band, 0

    Hot Mirror Specifications | HMW-0-25S

    Transmission Region

    450-645 nm

    Reflection Region

    750-1200 nm

    Reflection (min)

    90%

    Angle of Incidence

    0⁰

    Size (mm)

    25 mm Sq.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    +0.25/-0.00 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Wide Band, 0

    Hot Mirror Specifications | HMW-0-50D

    Transmission Region

    450-645 nm

    Reflection Region

    750-1200 nm

    Reflection (min)

    90%

    Angle of Incidence

    0⁰

    Size (mm)

    50 mm Dia.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    +0.25/-0.00 mm

    Scratch/Dig

    60-40

  • Hot Mirror, Wide Band, 0

    Hot Mirror Specifications | HMW-0-50S

    Transmission Region

    450-645 nm

    Reflection Region

    750-1200 nm

    Reflection (min)

    90%

    Angle of Incidence

    0⁰

    Size (mm)

    50 mm Sq.

    Clear Aperture

    90%

    Size Tolerance

    ± 0.1 mm

    Parallelism

    ≤ 3 arc min.

    Thickness

    1.0 mm

    Thickness Tolerance

    +0.25/-0.00 mm

    Scratch/Dig

    60-40

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