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Knight Optical(UK) Ltd - [email protected] - +44 (0)1622 859444

Precision grade aspheric lenses (Uncoated & AR coated)

What are you looking for in Stock?

Traditionally lens surfaces have been sections of a sphere. For many applications this leaves spherical aberration as the dominant defect of any image so created.   Aspheric lenses are used to correct these image defects.  One solution to this is to have one or both surfaces, departing from the spherical shape. Aspheric lenses can be very effective, focussing or collimating laser beams.  Aspheric lenses are polished to a good surface finish but the surface is not spherical and shaped to reduce the aberrations from a single on axis point.

These precision grade aspheric lenses will provide excellent performance over the visible spectrum and NIR applications. The glass aspheric lenses are coated with a single-layer AR coating on high index flint glass achieving high transmission of 98% at the stated wavelength (Typical V coating designed for 550nm)  Please see images above for an indication of how they look as some are provided with mounting flanges for ease of use in assembly work.

Glass aspheric lenses listed have visible antireflective coating @450-650nm (AV7)
Single layer MgF₂ AR for high index, R.avg<0.2%@ (design wavelength)

  • Mounting options
  • Stock lenses can be edged to smaller diameters.
  • Special AR coatings available on stock lenses.

Stock Optics

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Part No. Focal Length
Back Focal Length
Lens Aperture
Centre Thickness
Numerical ApertureMaterialCoating Price
LAQ0304 3.302.034.503.523.950.47BK-7AR Coated £59.95
LAQ0505 4.602.896.004.893.100.53H-LAK54AR Coated £59.95
LAQ0805 7.505.906.516.512.750.30H-LAK54AR Coated £59.95
LAQ1107 11.009.647.206.592.200.30H-LAK54AR Coated £59.95
LAQ0305 3.101.766.336.3243.190.68H-ZLaF52AR Coated £59.95
LAQ0405 4.022.396.334.853.000.60BorosilicateAR Coated £59.95
LAQ0202 Coated £59.95
LAQ0203 2.591.194.403.113.060.60H-ZLaF50BAR Coated £59.95
LAQ0406 4.512.916.334.853.000.54S-NPH1AR Coated £59.95
LAQ0808 8.005.929.948.003.600.50D-LaK6AR Coated £59.95
LAQ1505 15.2914.096.505.002.200.16H-LaK54AR Coated £59.95
LAQ1805 18.4017.136.505.502.170.15H-LaK54AR Coated £59.95

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Get in touch

Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

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