PARABOLIC MIRRORS

Making a quality mirror is a complex and delicate process that need highly skilled work from experts in this field. The methodology and the way to making optical mirrors have not changed significantly over the decades. The only real improvements have been in the methods for measuring the optical surface; such as laser interferometry. 

Our mirrors are made by our own computer-controlled method. In most methods used, the parabolizing tool reaches and stops at a specific area that is selected for processing. Thus, small areas are formed on the surface and it is impossible to obtain a smooth surface. The uniqueness of our method is that during processing the parabolizing tool always passes through the entire surface of the mirror and through all areas. Thus, at each stage of parabolization, a smooth and smoothly changing curve is achieved. The parabolic surface thus achieved at the end is of excellent quality, smooth and without zonal errors. The indicator for quality Strehl is always more than 95%, usually 98% – 99% as you can see here.

Our mirrors are extremely precise made from Borofloat33 glass of the German company Schott and accompanied by a certificate from interferometric tests, which ensures a high quality. With a thickness of 25 mm, they are light and have a very short tempering time.

DIAMETER D=205 MM
  • Material: Schott Borofloat 33
  • Thickness: d=25 mm
  • Accuracy of the parabolic surface: Strehl > 0.950
  • Interferometric test with a certificate: Yes
  • Reflection: 93%
  • Focal ratio f/4.5 and slower
    PRICE: 440 EUR
  • Focal ratio faster then f/4.5
    PRICE: 490 EUR

*excl.Shipping costs

DIAMETER D=255 MM
  • Material: Schott Borofloat 33
  • Thickness: d=25 mm
  • Accuracy of the parabolic surface: Strehl > 0.950
  • Interferometric test with a certificate: Yes
  • Reflection: 93%
  • Focal ratio f/4.5 and slower
    PRICE: 670 EUR
  • Focal ratio faster then f/4.5
    PRICE: 760 EUR

*excl.Shipping costs

DIAMETER D=300 MM
  • Material: Schott Borofloat 33
  • Thickness: d=25 mm
  • Accuracy of the parabolic surface: Strehl > 0.950
  • Interferometric test with a certificate: Yes
  • Reflection: 93%
  • Focal ratio f/4.5 and slower
    PRICE: 890 EUR
  • Focal ratio faster then f/4.5
    PRICE: 1010 EUR

*excl.Shipping costs

DIAMETER D=355 MM
  • Material: Schott Borofloat 33
  • Thickness: d=25 mm
  • Accuracy of the parabolic surface: Strehl > 0.950
  • Interferometric test with a certificate: Yes
  • Reflection: 93%
  • Focal ratio f/4.5 and slower
    PRICE: 1300 EUR
  • Focal ratio faster then f/4.5
    PRICE: 1470 EUR

*excl.Shipping costs

DIAMETER D=400 MM
  • Material: Schott Borofloat 33
  • Thickness: d=25 mm
  • Accuracy of the parabolic surface: Strehl > 0.950
  • Interferometric test with a certificate: Yes
  • Reflection: 93%
  • Focal ratio f/4.5 and slower
    PRICE: 1760 EUR
  • Focal ratio faster then f/4.5
    PRICE: 2010 EUR

*excl.Shipping costs

MORE INFORMATION

  • Contact us for prices of any diameters larger than the ones listed here or for thicker mirrors.
  • We also offer refiguring and aluminization services for your mirrors.

  • Here you can see the independent test results of two of our mirrors. The test is made by the famous expert Wolfgang Rohr.