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Diflex™ eco Narrowband Dielectric Mirror

An attractively priced dielectrical mirror, giving excellent reflection for selected wavelength ranges in VIS and NIR

The Diflex™ eco mirror as narrowband high reflectivity mirror is characterized by extreme high reflectivity and almost no absorption loss at selected wavelength ranges within VIS or NIR spectrum. These dielectric mirrors are typically produced with a sputtering deposition process with excellent optical and mechanical stability, both at higher operating temperatures and under varying environmental conditions.

Our Diflex™ eco mirrors are generally less sensitive to polarization and angle of incidence over narrowband wavelength ranges.

An attractively priced dielectrical mirror, giving excellent reflection for selected wavelength ranges in VIS and NIR

Benefits

  • Narrowband, high-reflective and durable dielectrical mirror
  • Minimum absorption loss
  • Designed specifically to meet demands of customer optical systems
  • Wide AOI- range
  • Excellent environmental stability thus long lifetime
  • Engineering design support
  • EU RoHS directive compliant


Applications

  • All low loss reflective optics in VIS and NIR
  • Optical sensors and instruments
  • Metrology & Inspection
  • Technical Lighting
  • Automotive Lidar ranging systems


Technical Data

Diflex™ eco

Reflectance e.g.

Rabs. >= 99.0% at 633 nm (+-20 nm) / r-pol. / AOI = 0°-55°

Rabs. >= 99.0% at 633 nm (+-20 nm) / s-pol. / AOI = 0°-70°

Rabs. >= 99.0% at 633 nm (+-20 nm) / p-pol. / AOI = 0°-45°

Other selected wavelengths ranges between 400 nm – 2500 nm with high reflectance and broader bandwidth up to 400 nm on request.


Reflectance e.g.

Rabs. >= 99% at 633 nm (+-75 nm) / r-pol./ AOI = 0°

Rabs. >= 99% at 905 nm (+-100 nm) / r-pol./ AOI = 0°

Rabs. >= 98% at 1550 nm (+-200 nm) / r-pol. /AOI = 0°

Other customized solutions on request


Environmental resistance and durability

The coating withstands the following tests on glass substrates


Temperature

(MIL-M-13508C, para. 4.4.4.)

5 hrs each at -62° and 71 °C

(ISO 9022-2)

16 hrs at -62 °C and 2 hrs at +71 °C


Abrasion

(MIL-M-13508C, para. 4.4.5.)

50 strokes/cheesecloth

(ISO 9211-4-01)

50 strokes/Cheesecloth


Adhesion

(MIL-M-13508C, para.4.4.6.)

Scotch tape test, quick

(ISO 9211-4-02-02)

1 s/25 mm, tape 3M


Humidity

(MIL-M-13508C, para. 4.4.7.)

24 hrs. at 49 °C r.h. 95%

(ISO 9022-2)

24 hrs at +40 °C, r.h. 95%

Diflex™ eco Narrowband Dielectric Mirror 633 nm, Fig.1: Measured spectral reflectance of r-pol light, various AOI
Fig.1: Measured spectral reflectance of r-pol light, various AOI
Fig.2: Measured spectral reflectance of s-pol light, various AOI
Fig.2: Measured spectral reflectance of s-pol light, various AOI
Fig.3: Measured spectral reflectance of p-pol light, various AOI
Fig.3: Measured spectral reflectance of p-pol light, various AOI
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