Compare Model Drawings, CAD & Specs Wavelength Range Mirror Size Thickness Material Surface Quality Availability Price
$107
In Stock
488-694 nm 25.4 x 35.9 mm 6.0 mm N-BK7 40-20 scratch-dig
In Stock
$111
In Stock
700-950 nm 25.4 x 35.9 mm 6.0 mm N-BK7 40-20 scratch-dig
In Stock
$201
In Stock
488-694 nm 33.02 x 46.7 mm 9.4 mm Borofloat® 33 15-5 scratch-dig
In Stock
$212
In Stock
700-950 nm 33.02 x 46.7 mm 9.4 mm Borofloat® 33 15-5 scratch-dig
In Stock
$302
In Stock
488-694 nm 46.7 x 66.04 mm 12.5 mm Borofloat® 33 15-5 scratch-dig
In Stock
$314
In Stock
700-950 nm 46.7 x 66.04 mm 12.5 mm Borofloat® 33 15-5 scratch-dig
In Stock

Specifications

  • Wavelength Range
    488-694 nm, 700-950 nm
  • Mirror Shape
    Elliptical
  • Mirror Size
    25.4 x 35.9 mm, 33.02 x 46.7 mm, 46.7 x 66.04 mm
  • Thickness
    6.0 mm, 9.4 mm, 12.5 mm
  • Material
    N-BK-7 or Borofloat 33
  • Surface Flatness
    λ/10 at 632.8 nm
  • Angle of Incidence
    0-45°
  • Clear Aperture
    ≥ central 80% of diameter
  • Thickness Tolerance
    ±0.2 mm, ±0.25 mm
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning

Features

Borofloat® 33 Substrates

BOROFLOAT® 33 is a high quality borosilicate glass that offers low thermal expansion, and high thermal shock resistance making it ideal for a wide-range of optical mirror applications.

Optical Materials - Technical Note

N-BK7 Substrates

N-BK7 is a relatively hard Borosilicate glass that offers good scratch resistance with a very low level of inclusions. It has a lower surface quality than our Borofloat® 33 substrates.

Optical Materials - Technical Note
 

Visible Broadband Dielectric Coating

Our BD.1 visible broadband dielectric coating reflects all visible laser lines in the range of 488 to 694 nm with greater than 99% efficiency for s-polarization and 98% for p-polarization at 0 - 45° angle of incidence. High reflectivity is also extended to greater than 98% at 441.6 nm.

NIR Broadband Dielectric Coating

Our BD.2 coating offers high reflectance for near infrared diode laser applications. Reflectivity is greater than 99% for s-polarization and 97% for p-polarization from 700 – 950 nm at 0 – 45° angle of incidence. Greater than 80% average reflectivity at 632.8 nm is also provided to permit easy alignment using a HeNe laser.

Capture the Full Beam Diameter

Prevention of beam clipping is important In beam steering applications with larger beam diameters. Elliptical mirrors allow you to capture the whole beam at a 45 degree AOI. The elliptical mirror will look circular to the incoming beam.

Elliptical Mirrors used in Periscope Application

Durable Dielectric Coatings

All dielectric coating construction is physically more durable than standard metallic coatings. Dielectric mirrors are more resistant to humidity, thermal changes, abrasion and salt exposure.