Optical filters picture, Hot Mirrors
 

Hot Mirrors

Mirror with high infrared reflection
and high transmission of visible light

SIR-Series

Special Properties

  • Very good infrared reflection up to 1100nm
  • High and neutral spectral transmissivity in the visble
  • High operating temperature (up to 400°C)
  • 100% dielectric multilayer construction
  • Transmits cold light

Typical Applications

  • Color neutral and efficient separation of
    thermal energy and light
  • IR-Filters or CCD-Filters for digital camera chips
  • Sensor- and measurement applications
  • Detector trimmers
  • Infared mirrors
  • Eye tracking mirrors
  • Inrafred photography
  • IR-mirrors in lighting systems
  • Near infrared filter
  • Lighting filters
  • Imaging projector filter
  • Lens system protection

Hot Mirrors are heat filters that are used, to filter out the undesired infrared energy from a light source. They reflect infrared light while they are transparent for the visible spectrum. Our SIR heat reflecting hot mirror shows a decisive Hot Mirroradvantage over ordinary hot mirror coatings or absorbing filters. The transmission of visible light is higher and more neutral in color, while the thermal radiation up to 1100nm is reflected significantly more efficiently. Because of its 100% dielectric construction and the temperature-resistant quality BOROFLOAT® substrate, the SIR filter can withstand high temperatures. The standard SIR filter can stand operating temperatures of up to 400°C. Furthermore, IR-reflecting filters do not warm up as heavily as heat absorbing filters, because the warm IR-light is deflected and not absorbed. The filter coating design makes the SIR filter resistant to humidity and many other environmental conditions. The hot light filter is designed for an angle of incidence of 0°. Nevertheless, if a shifting of the cut-off is acceptable, our standard SIR hot mirror can also be used at incidence angles of 45°. If you want to use the SIR at other angles than 0°, please ask us for support and typical transmission curves.

All of our hot mirror coatings can be modified in regards to transmission and reflection wavelength ranges, as well as to the cut-on and cut-off wavelength and angles of incidences. Please use our custom optics RFQ form, to conveniently inquire your customized hot mirror or just contact us for further information.


For a quotation for our SIR hot mirror with individual dimensions, please click the button below:


Request SIR hot mirror

Specifications


SIR Hot Mirror transmission curve

Show spectral transmission curve of our SIR

 

Product Code

  • SIR

Substrates

Coating Construction

  • 100% dielectric
  • Designed for an angle of incidence of 0°
  • Other cut-ons / cut-offs available if required

Operating Temperature

  • up to 400°C

Flatness

Surface Quality

  • typ. 80-50 scratch & dig (MIL-0-13830A)
  • Other on request

Standard thicknesses

  • 1,1mm / 1,75mm / 3,3mm

Other Specifications

  • Adherence according to MIL-C-675 C (tape test)
  • Abrasion resistant according to MIL-M-13508 C

All given details and specifications are mean reference values and are not guaranteed. In addition, please consider our "Notes on technical specifications"